JBR-4185 Java accessible action "toggle popup" does not match to NSAccessibilityShowMenu action

2026-01-08 17:41:41 +01:00 · 2022-02-02 17:46:19 +03:00 · 2022-01-19 12:39:30 +03:00 · 2022-01-18 17:37:47 +03:00 · 2022-01-18 15:56:06 +03:00 · 2022-01-18 07:09:58 +03:00
6422 changed files with 270161 additions and 131845 deletions
--- a/.github/workflows/submit.yml
+++ b/.github/workflows/submit.yml
@@ -12,10 +12,6 @@ on:
        required: true
        default: "Linux additional (hotspot only), Linux x64, Linux x86, Windows aarch64, Windows x64, macOS x64"

-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 jobs:
  prerequisites:
    name: Prerequisites
@@ -23,7 +19,6 @@ jobs:
    outputs:
      should_run: ${{ steps.check_submit.outputs.should_run }}
      bundle_id: ${{ steps.check_bundle_id.outputs.bundle_id }}
-      jdk_version: ${{ steps.check_jdk_versions.outputs.jdk_version }}
      platform_linux_additional: ${{ steps.check_platforms.outputs.platform_linux_additional }}
      platform_linux_x64: ${{ steps.check_platforms.outputs.platform_linux_x64 }}
      platform_linux_x86: ${{ steps.check_platforms.outputs.platform_linux_x86 }}
@@ -56,7 +51,7 @@ jobs:
        if: steps.check_submit.outputs.should_run != 'false'

      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk
        if: steps.check_submit.outputs.should_run != 'false'
@@ -71,40 +66,20 @@ jobs:
        run: "echo '${{ steps.check_deps.outputs.dependencies }}'"
        if: steps.check_submit.outputs.should_run != 'false'

-      - name: Determine full JDK versions
-        id: check_jdk_versions
-        shell: bash
-        run: |
-          FEATURE=${{ fromJson(steps.check_deps.outputs.dependencies).DEFAULT_VERSION_FEATURE }}
-          INTERIM=${{ fromJson(steps.check_deps.outputs.dependencies).DEFAULT_VERSION_INTERIM }}
-          UPDATE=${{ fromJson(steps.check_deps.outputs.dependencies).DEFAULT_VERSION_UPDATE }}
-          PATCH=${{ fromJson(steps.check_deps.outputs.dependencies).DEFAULT_VERSION_PATCH }}
-          if [ "x${PATCH}" != "x0" ]; then
-             V=${FEATURE}.${INTERIM}.${UPDATE}.${PATCH}
-          elif [ "x${UPDATE}" != "x0" ]; then
-             V=${FEATURE}.${INTERIM}.${UPDATE}
-          elif [ "x${INTERIM}" != "x0" ]; then
-             V={FEATURE}.${INTERIM}
-          else
-             V=${FEATURE}
-          fi
-          echo "::set-output name=jdk_version::${V}"
-        if: steps.check_submit.outputs.should_run != 'false'
-
      - name: Determine the jtreg ref to checkout
        run: "echo JTREG_REF=jtreg-${{ fromJson(steps.check_deps.outputs.dependencies).JTREG_VERSION }}+${{ fromJson(steps.check_deps.outputs.dependencies).JTREG_BUILD }} >> $GITHUB_ENV"
        if: steps.check_submit.outputs.should_run != 'false'

      - name: Check if a jtreg image is present in the cache
        id: jtreg
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/jtreg/
          key: jtreg-${{ env.JTREG_REF }}-v1
        if: steps.check_submit.outputs.should_run != 'false'

      - name: Checkout the jtreg source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          repository: "openjdk/jtreg"
          ref: ${{ env.JTREG_REF }}
@@ -122,7 +97,7 @@ jobs:
        if: steps.check_submit.outputs.should_run != 'false' && steps.jtreg.outputs.cache-hit != 'true'

      - name: Store jtreg for use by later steps
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          name: transient_jtreg_${{ steps.check_bundle_id.outputs.bundle_id }}
          path: ~/jtreg/
@@ -146,7 +121,7 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_URL }}"
@@ -154,13 +129,13 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -176,21 +151,21 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        if: steps.jtreg_restore.outcome == 'failure'

      - name: Checkout gtest sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          repository: "google/googletest"
          ref: "release-${{ fromJson(needs.prerequisites.outputs.dependencies).GTEST_VERSION }}"
@@ -222,7 +197,7 @@ jobs:
        working-directory: jdk

      - name: Persist test bundles
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          name: transient_jdk-linux-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: |
@@ -275,7 +250,7 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_URL }}"
@@ -283,11 +258,11 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -303,14 +278,14 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
@@ -318,14 +293,14 @@ jobs:

      - name: Restore build artifacts
        id: build_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-linux-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-linux-x64${{ matrix.artifact }}
        continue-on-error: true

      - name: Restore build artifacts (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-linux-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-linux-x64${{ matrix.artifact }}
@@ -347,7 +322,6 @@ jobs:
          echo "imageroot=`dirname ${imageroot}`" >> $GITHUB_ENV

      - name: Run tests
-        id: run_tests
        run: >
          JDK_IMAGE_DIR=${{ env.imageroot }}
          TEST_IMAGE_DIR=${HOME}/jdk-linux-x64${{ matrix.artifact }}/jdk-${{ env.JDK_VERSION }}-internal+0_linux-x64_bin-tests${{ matrix.artifact }}
@@ -363,7 +337,7 @@ jobs:
          JTREG="JAVA_OPTIONS=-XX:-CreateCoredumpOnCrash"

      - name: Check that all tests executed successfully
-        if: steps.run_tests.outcome != 'skipped'
+        if: always()
        run: >
          if ! grep --include=test-summary.txt -lqr build/*/test-results -e "TEST SUCCESS" ; then
            cat build/*/test-results/*/text/newfailures.txt ;
@@ -398,14 +372,14 @@ jobs:

      - name: Persist test results
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/linux-x64${{ matrix.artifact }}_testresults_${{ env.logsuffix }}.zip
        continue-on-error: true

      - name: Persist test outputs
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/linux-x64${{ matrix.artifact }}_testsupport_${{ env.logsuffix }}.zip
        continue-on-error: true
@@ -458,7 +432,7 @@ jobs:
            gnu-arch: powerpc64le

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_URL }}"
@@ -466,13 +440,13 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -488,14 +462,14 @@ jobs:

      - name: Restore build JDK
        id: build_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-linux-x64_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-linux-x64
        continue-on-error: true

      - name: Restore build JDK (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-linux-x64_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-linux-x64
@@ -526,7 +500,7 @@ jobs:

      - name: Cache sysroot
        id: cache-sysroot
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/sysroot-${{ matrix.debian-arch }}/
          key: sysroot-${{ matrix.debian-arch }}-${{ hashFiles('jdk/.github/workflows/submit.yml') }}
@@ -606,7 +580,7 @@ jobs:

    # Reduced 32-bit build uses the same boot JDK as 64-bit build
    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_URL }}"
@@ -614,13 +588,13 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -636,21 +610,21 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        if: steps.jtreg_restore.outcome == 'failure'

      - name: Checkout gtest sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          repository: "google/googletest"
          ref: "release-${{ fromJson(needs.prerequisites.outputs.dependencies).GTEST_VERSION }}"
@@ -689,7 +663,7 @@ jobs:
        working-directory: jdk

      - name: Persist test bundles
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          name: transient_jdk-linux-x86${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: |
@@ -743,7 +717,7 @@ jobs:

    # Reduced 32-bit build uses the same boot JDK as 64-bit build
    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).LINUX_X64_BOOT_JDK_URL }}"
@@ -751,11 +725,11 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -771,14 +745,14 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
@@ -786,14 +760,14 @@ jobs:

      - name: Restore build artifacts
        id: build_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-linux-x86${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-linux-x86${{ matrix.artifact }}
        continue-on-error: true

      - name: Restore build artifacts (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-linux-x86${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-linux-x86${{ matrix.artifact }}
@@ -815,7 +789,6 @@ jobs:
          echo "imageroot=`dirname ${imageroot}`" >> $GITHUB_ENV

      - name: Run tests
-        id: run_tests
        run: >
          JDK_IMAGE_DIR=${{ env.imageroot }}
          TEST_IMAGE_DIR=${HOME}/jdk-linux-x86${{ matrix.artifact }}/jdk-${{ env.JDK_VERSION }}-internal+0_linux-x86_bin-tests${{ matrix.artifact }}
@@ -831,7 +804,7 @@ jobs:
          JTREG="JAVA_OPTIONS=-XX:-CreateCoredumpOnCrash"

      - name: Check that all tests executed successfully
-        if: steps.run_tests.outcome != 'skipped'
+        if: always()
        run: >
          if ! grep --include=test-summary.txt -lqr build/*/test-results -e "TEST SUCCESS" ; then
            cat build/*/test-results/*/text/newfailures.txt ;
@@ -866,14 +839,14 @@ jobs:

      - name: Persist test results
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/linux-x86${{ matrix.artifact }}_testresults_${{ env.logsuffix }}.zip
        continue-on-error: true

      - name: Persist test outputs
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/linux-x86${{ matrix.artifact }}_testsupport_${{ env.logsuffix }}.zip
        continue-on-error: true
@@ -895,45 +868,34 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_URL }}"
      BOOT_JDK_SHA256: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_SHA256 }}"

    steps:
-      - name: Restore cygwin installer from cache
-        id: cygwin-installer
-        uses: actions/cache@v3
-        with:
-          path: ~/cygwin/setup-x86_64.exe
-          key: cygwin-installer
-
-      - name: Download cygwin installer
-        run: |
-          New-Item -Force -ItemType directory -Path "$HOME\cygwin"
-          & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
-        if: steps.cygwin-installer.outputs.cache-hit != 'true'
-
      - name: Restore cygwin packages from cache
        id: cygwin
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/cygwin/packages
          key: cygwin-packages-${{ runner.os }}-v1

      - name: Install cygwin
        run: |
-          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages cygwin=3.3.5-1,autoconf,make,zip,unzip --root $HOME\cygwin\cygwin64 --local-package-dir $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow
+          New-Item -Force -ItemType directory -Path "$HOME\cygwin"
+          & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
+          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages cygwin=3.2.0-1,autoconf,make,zip,unzip --root $HOME\cygwin\cygwin64 --local-package-dir $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow

      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -995,45 +957,34 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_URL }}"
      BOOT_JDK_SHA256: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_SHA256 }}"

    steps:
-      - name: Restore cygwin installer from cache
-        id: cygwin-installer
-        uses: actions/cache@v3
-        with:
-          path: ~/cygwin/setup-x86_64.exe
-          key: cygwin-installer
-
-      - name: Download cygwin installer
-        run: |
-          New-Item -Force -ItemType directory -Path "$HOME\cygwin"
-          & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
-        if: steps.cygwin-installer.outputs.cache-hit != 'true'
-
      - name: Restore cygwin packages from cache
        id: cygwin
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/cygwin/packages
          key: cygwin-packages-${{ runner.os }}-v1

      - name: Install cygwin
        run: |
-          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages cygwin=3.3.5-1,autoconf,make,zip,unzip --root $HOME\cygwin\cygwin64 --local-package-dir $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow
+          New-Item -Force -ItemType directory -Path "$HOME\cygwin"
+          & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
+          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages cygwin=3.2.0-1,autoconf,make,zip,unzip --root $HOME\cygwin\cygwin64 --local-package-dir $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow

      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -1049,7 +1000,7 @@ jobs:
        if: steps.bootjdk.outputs.cache-hit != 'true'

      - name: Checkout gtest sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          repository: "google/googletest"
          ref: "release-${{ fromJson(needs.prerequisites.outputs.dependencies).GTEST_VERSION }}"
@@ -1057,14 +1008,14 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
@@ -1104,7 +1055,7 @@ jobs:
        working-directory: jdk

      - name: Persist test bundles
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          name: transient_jdk-windows-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: |
@@ -1158,7 +1109,7 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_URL }}"
@@ -1166,11 +1117,11 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -1185,40 +1136,29 @@ jobs:
          Get-ChildItem "$HOME\bootjdk\$env:BOOT_JDK_VERSION\*\*" | Move-Item -Destination "$HOME\bootjdk\$env:BOOT_JDK_VERSION"
        if: steps.bootjdk.outputs.cache-hit != 'true'

-      - name: Restore cygwin installer from cache
-        id: cygwin-installer
-        uses: actions/cache@v3
-        with:
-          path: ~/cygwin/setup-x86_64.exe
-          key: cygwin-installer
-
-      - name: Download cygwin installer
-        run: |
-          New-Item -Force -ItemType directory -Path "$HOME\cygwin"
-          & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
-        if: steps.cygwin-installer.outputs.cache-hit != 'true'
-
      - name: Restore cygwin packages from cache
        id: cygwin
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/cygwin/packages
          key: cygwin-packages-${{ runner.os }}-v1

      - name: Install cygwin
        run: |
-          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages cygwin=3.3.5-1,autoconf,make,zip,unzip --root $HOME\cygwin\cygwin64 --local-package-dir $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow
+          New-Item -Force -ItemType directory -Path "$HOME\cygwin"
+          & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
+          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages cygwin=3.2.0-1,autoconf,make,zip,unzip --root $HOME\cygwin\cygwin64 --local-package-dir $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
@@ -1226,14 +1166,14 @@ jobs:

      - name: Restore build artifacts
        id: build_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-windows-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-windows-x64${{ matrix.artifact }}
        continue-on-error: true

      - name: Restore build artifacts (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-windows-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-windows-x64${{ matrix.artifact }}
@@ -1258,7 +1198,6 @@ jobs:
        run: echo ("imageroot=" + (Get-ChildItem -Path $HOME/jdk-windows-x64${{ matrix.artifact }}/jdk-${{ env.JDK_VERSION }}-internal+0_windows-x64_bin${{ matrix.artifact }} -Filter release -Recurse -ErrorAction SilentlyContinue -Force).DirectoryName) | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8

      - name: Run tests
-        id: run_tests
        run: >
          $env:Path = "$HOME\cygwin\cygwin64\bin;$HOME\cygwin\cygwin64\bin;$env:Path" ;
          $env:Path = $env:Path -split ";" -match "C:\\Windows|PowerShell|cygwin" -join ";" ;
@@ -1277,7 +1216,7 @@ jobs:
          JTREG="JAVA_OPTIONS=-XX:-CreateCoredumpOnCrash"

      - name: Check that all tests executed successfully
-        if: steps.run_tests.outcome != 'skipped'
+        if: always()
        run: >
          if ((Get-ChildItem -Path build\*\test-results\test-summary.txt -Recurse | Select-String -Pattern "TEST SUCCESS" ).Count -eq 0) {
            Get-Content -Path build\*\test-results\*\*\newfailures.txt ;
@@ -1314,14 +1253,14 @@ jobs:

      - name: Persist test results
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/windows-x64${{ matrix.artifact }}_testresults_${{ env.logsuffix }}.zip
        continue-on-error: true

      - name: Persist test outputs
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/windows-x64${{ matrix.artifact }}_testsupport_${{ env.logsuffix }}.zip
        continue-on-error: true
@@ -1345,7 +1284,7 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).MACOS_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).MACOS_X64_BOOT_JDK_URL }}"
@@ -1353,13 +1292,13 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -1375,21 +1314,21 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        if: steps.jtreg_restore.outcome == 'failure'

      - name: Checkout gtest sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          repository: "google/googletest"
          ref: "release-${{ fromJson(needs.prerequisites.outputs.dependencies).GTEST_VERSION }}"
@@ -1421,7 +1360,7 @@ jobs:
        working-directory: jdk

      - name: Persist test bundles
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          name: transient_jdk-macos-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: |
@@ -1447,7 +1386,7 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).MACOS_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).MACOS_X64_BOOT_JDK_URL }}"
@@ -1455,13 +1394,13 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          path: jdk

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -1477,21 +1416,21 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        if: steps.jtreg_restore.outcome == 'failure'

      - name: Checkout gtest sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
        with:
          repository: "google/googletest"
          ref: "release-${{ fromJson(needs.prerequisites.outputs.dependencies).GTEST_VERSION }}"
@@ -1524,7 +1463,7 @@ jobs:
        working-directory: jdk

      - name: Persist test bundles
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          name: transient_jdk-macos-aarch64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: |
@@ -1578,7 +1517,7 @@ jobs:
            artifact: -debug

    env:
-      JDK_VERSION: "${{ needs.prerequisites.outputs.jdk_version }}"
+      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}"
      BOOT_JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).BOOT_JDK_VERSION }}"
      BOOT_JDK_FILENAME: "${{ fromJson(needs.prerequisites.outputs.dependencies).MACOS_X64_BOOT_JDK_FILENAME }}"
      BOOT_JDK_URL: "${{ fromJson(needs.prerequisites.outputs.dependencies).MACOS_X64_BOOT_JDK_URL }}"
@@ -1586,11 +1525,11 @@ jobs:

    steps:
      - name: Checkout the source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2

      - name: Restore boot JDK from cache
        id: bootjdk
-        uses: actions/cache@v3
+        uses: actions/cache@v2
        with:
          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
@@ -1606,14 +1545,14 @@ jobs:

      - name: Restore jtreg artifact
        id: jtreg_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
        continue-on-error: true

      - name: Restore jtreg artifact (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jtreg_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jtreg/
@@ -1621,14 +1560,14 @@ jobs:

      - name: Restore build artifacts
        id: build_restore
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-macos-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-macos-x64${{ matrix.artifact }}
        continue-on-error: true

      - name: Restore build artifacts (retry)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          name: transient_jdk-macos-x64${{ matrix.artifact }}_${{ needs.prerequisites.outputs.bundle_id }}
          path: ~/jdk-macos-x64${{ matrix.artifact }}
@@ -1656,7 +1595,6 @@ jobs:
          echo "imageroot=`dirname ${imageroot}`" >> $GITHUB_ENV

      - name: Run tests
-        id: run_tests
        run: >
          JDK_IMAGE_DIR=${{ env.imageroot }}
          TEST_IMAGE_DIR=${HOME}/jdk-macos-x64${{ matrix.artifact }}/jdk-${{ env.JDK_VERSION }}-internal+0_macos-x64_bin-tests${{ matrix.artifact }}
@@ -1672,7 +1610,7 @@ jobs:
          JTREG="JAVA_OPTIONS=-XX:-CreateCoredumpOnCrash"

      - name: Check that all tests executed successfully
-        if: steps.run_tests.outcome != 'skipped'
+        if: always()
        run: >
          if ! grep --include=test-summary.txt -lqr build/*/test-results -e "TEST SUCCESS" ; then
            cat build/*/test-results/*/text/newfailures.txt ;
@@ -1707,14 +1645,14 @@ jobs:

      - name: Persist test results
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/macos-x64${{ matrix.artifact }}_testresults_${{ env.logsuffix }}.zip
        continue-on-error: true

      - name: Persist test outputs
        if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          path: ~/macos-x64${{ matrix.artifact }}_testsupport_${{ env.logsuffix }}.zip
        continue-on-error: true
@@ -1737,7 +1675,7 @@ jobs:
    steps:
      - name: Determine current artifacts endpoint
        id: actions_runtime
-        uses: actions/github-script@v6
+        uses: actions/github-script@v3
        with:
          script: "return { url: process.env['ACTIONS_RUNTIME_URL'], token: process.env['ACTIONS_RUNTIME_TOKEN'] }"

@@ -1760,7 +1698,7 @@ jobs:
          done

      - name: Fetch remaining artifacts (test results)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v2
        with:
          path: test-results

@@ -1777,7 +1715,7 @@ jobs:
          done

      - name: Upload a combined test results artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
        with:
          name: test-results_${{ needs.prerequisites.outputs.bundle_id }}
          path: test-results
--- a/.hgtags
+++ b/.hgtags
@@ -1,664 +0,0 @@
-3cc80be736f24704e505ad8ddaa598dec3fa2ed3 jdk-9+181
-e2b70be325bd10dae4c06f74c46d70d480854916 jdk-9+179
-5b16a1c3ccffff2a82c88bb7ea894c4ff1c9ebde jdk-9+180
-43bf6f30fcba031ecf0cc7e511efe3a8179d0f77 jdk-9+176
-d9f6bc6ba599d0487dc18b2fbdb6c34eedf6f958 jdk-9+177
-bc9df7dd63ec76f50fafeb4acc44465044662f0a jdk-9+178
-994036e74ab805bcc09afa0646be17a725bec42f jdk-9+175
-94680c6d60ecd9ed3ffd1847706efde7eb947afc jdk-9+174
-6dd7fda42bab7ecf648cafb0a4e9b4ca11b3094f jdk-9+173
-dad6746278facbbea57dd462cb56fb743dc0a5f0 jdk-9+172
-643b5f18c2656fe91b69fea85b07b98d5fad394d jdk-9+171
-898cbe31fbdae2d25d141384fac746cc244a730c jdk-9+170
-c7efde2b60fc1ec04630be769d9ad60efb39c39c jdk-9+169
-8fd0a4569191f33c98ee90c2709174a342fefb0d jdk-9+167
-fcabc74bd44e56c7419d111d59b95669ecb33c55 jdk-9+168
-d3e973f1809606c67412361041ad197e50fe8cec jdk-9+166
-3965b747cfe1e6cbd66b8739da5a1ea6ec6985e9 jdk-9+165
-d16aebbb56d37f12e0c0b0a4fb427db65e1fb1a8 jdk-9+162
-18c41483a082e097ac2f5f983c1226ed94aa4215 jdk-9+163
-32db52c675e7d5bc413605d2e89b68b608b19be0 jdk-9+164
-fd1497902bbe3aa24b21f270ecdcb8de5f7aa9ac jdk-9+159
-6aa8be0c4e054fe8b3ab016ae00d16d680f92145 jdk-9+160
-f6883b1a5a6478437cd4181c4bd45328ab24feaf jdk-9+161
-fa3e76b477829afc4476f0b725cfaa440a6fd917 jdk-9+157
-b5015f742ba648184bb7fc547197bd33ebfde30d jdk-9+158
-1cc8dd79fd1cd13d36b385196271a29632c67c3b jdk7-b24
-bf2517e15f0c0f950e5b3143c4ca11e2df73dcc1 jdk7-b25
-5ae7db536e3fcf6be78e45b240a9058095e0ed38 jdk7-b26
-67052ac87fc927d048e62ec54ff42adb230d3f7c jdk7-b27
-18dc4ba4739a537fd146f77da51db16efce28da2 jdk7-b28
-bfe4572fd301a6fcd120373cdb2eff5d2da0c72c jdk7-b29
-bee4731164a06ddece1297ae58db24aca6a1c626 jdk7-b30
-cd8b8f500face60d1566d850857a7fccadbd383a jdk7-b31
-a9f1805e3ba9ca520cad199d522c84af5433e85a jdk7-b32
-6838c1a3296aaa3572364d2ce7d70826cee96286 jdk7-b33
-90cf935adb353bb0af4b46fb0677e841fd24c000 jdk7-b34
-6d909d5803e3a22850e6c4e5a75b888742ee7e20 jdk7-b35
-d718a441936196b93d8bc9f084933af9a4c2a350 jdk7-b36
-c2036bf76829c03b99108fffab52e20910a9be4f jdk7-b37
-a2879b2837f5a4c87e9542efe69ef138194af8ff jdk7-b38
-126f365cec6c3c2c72de934fa1c64b5f082b55b5 jdk7-b39
-3c53424bbe3bb77e01b468b4b0140deec33e11fc jdk7-b40
-3cb2a607c347934f8e7e86f840a094c28b08d9ea jdk7-b41
-caf58ffa084568990cbb3441f9ae188e36b31770 jdk7-b42
-41bd0a702bc8ec6feebd725a63e7c3227f82ab11 jdk7-b43
-5843778bda89b1d5ac8e1aa05e26930ac90b3145 jdk7-b44
-54dffad0bf066791a2793305875250c395011d5f jdk7-b45
-04b2620edc72de93671646e4720c5992c74ac8b5 jdk7-b46
-0c4657194eec95c08ba478aee9cfc3c295e41657 jdk7-b47
-1bf51a4c2627c2f0e0cbcc2cf0421bdb37f1f2b2 jdk7-b48
-6b84b04a80afe23262377c60913eebfc898f14c4 jdk7-b49
-5da0e6b9f4f18ef483c977337214b12ee0e1fc8f jdk7-b50
-a25c5ec5e40e07733d1ff9898a0abe36159288ff jdk7-b51
-7a90e89e36d103038f8667f6a7daae34ecfa1ad8 jdk7-b52
-d52186ee770dac57950536cd00ccbfdef360b04c jdk7-b53
-15096652c4d48dfb9fc0b2cb135304db94c65ba0 jdk7-b54
-c8b275d62d6b0a980c510e839b70292245863e85 jdk7-b55
-a8134c4ee2cf451cf9b5e1609f39d83ecd53acc5 jdk7-b56
-b44f05654c26fcd1f995e712992f9b07ffd7c0c6 jdk7-b57
-d60a9ce3c3eabf28f5d50ae839d18be04a551bc2 jdk7-b58
-c33e7d38c9210741dbc285507403a4b20bd802a0 jdk7-b59
-5a10e4d0b14d7beac53a7b2213ae6864afe1fd3e jdk7-b60
-dbb955b1ee59b876dd1f133952b557b48b1d7732 jdk7-b61
-6107cbff3130c747d243c25a7874cd59db5744a8 jdk7-b62
-dfd8506f74c3731bb169ce93c72612d78ee0413b jdk7-b63
-d22867c5f1b295a0a2b3b4bc8999a2676f6e20c3 jdk7-b64
-7d3bf00f3cc4f8125de1842521e7567f37dc84b8 jdk7-b65
-62109d1b9e7310f29ab51ca6f1d71b899c0ce6b0 jdk7-b66
-eb24af1404aec8aa140c4cd4d13d2839b150dd41 jdk7-b67
-bca2225b66d78c4bf4d9801f54cac7715a598650 jdk7-b68
-1b662b1ed14eb4ae31d5138a36c433b13d941dc5 jdk7-b69
-207f694795c448c17753eff1a2f50363106960c2 jdk7-b70
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-1d6ceb13e142665ea833fca01c8c8598e0ddd211 jdk-15+14
-bc54620a3848c26cff9766e5e2a6e5ddab98ed18 jdk-14-ga
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-93813843680bbe1b7efbca56c03fd137f20a2c31 jdk-15+27
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-e2622818f0bd30e736252eba101fe7d2c27f400b jdk-16+4
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-143e258f64af490010eb7e0bacc1cfaeceff0993 jdk-16+5
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-4a8fd81d64bafa523cddb45f82805536edace106 jdk-16+6
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-c3a4a7ea7c304cabdacdc31741eb94c51351668d jdk-16+7
-b0817631d2f4395508cb10e81c3858a94d9ae4de jdk-15+34
-0a73d6f3aab48ff6d7e61e47f0bc2d87a054f217 jdk-16+8
-fd60c3146a024037cdd9be34c645bb793995a7cc jdk-15+35
-c075a286cc7df767cce28e8057d6ec5051786490 jdk-16+9
-b01985b4f88f554f97901e53e1ba314681dd9c19 jdk-16+10
-e3f940bd3c8fcdf4ca704c6eb1ac745d155859d5 jdk-15+36
-5c18d696c7ce724ca36df13933aa53f50e12b9e0 jdk-16+11
-fc8e62b399bd93d06e8d13dc3b384c450e853dcd jdk-16+12
-fd07cdb26fc70243ef23d688b545514f4ddf1c2b jdk-16+13
-36b29df125dc88f11657ce93b4998aa9ff5f5d41 jdk-16+14
--- a/.jcheck/conf
+++ b/.jcheck/conf
@@ -1,7 +1,7 @@
 [general]
-project=jdk-updates
+project=jdk
 jbs=JDK
-version=17.0.4
+version=19

 [checks]
 error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace,problemlists
--- a/README.md
+++ b/README.md
@@ -5,13 +5,12 @@
 JetBrains Runtime is a fork of [OpenJDK](https://github.com/openjdk/jdk) available for Windows, Mac OS X, and Linux.
 It includes a number enhancements in font rendering, HiDPI support, ligatures, performance improvements, and bugfixes.

-## Releases
-Download the latest releases of JetBrains Runtime to use with JetBrains IDEs. The full list
-can be found on the [releases page](https://github.com/JetBrains/JetBrainsRuntime/releases).
-
-| IDE Version | Latest JBR | Date Released |
-|  ---        | ---        | ---           |
-| 2022.2      | [17.0.4-b469.53](https://github.com/JetBrains/JetBrainsRuntime/releases/tag/jbr-release-17.0.4b469.53)| 31-Aug-2022   |
+> **_NOTE_**: This is a **development** branch that is periodically synhronized with 
+> the [OpenJDK master](https://github.com/openjdk/jdk/tree/master) branch.
+> 
+> Release builds are based on these branches:
+> * [master](https://github.com/JetBrains/JetBrainsRuntime/tree/master) (JDK 11)
+> * [master17](https://github.com/JetBrains/JetBrainsRuntime/tree/master17) (JDK 17)


 ## Contents
@@ -77,7 +76,6 @@ Run these commands in the new container:
 ```
 $ docker run -v `pwd`../../../../:/JetBrainsRuntime -it 942ea9900054
 # cd /JetBrainsRuntime
-# git checkout master17
 # sh ./configure
 # make images CONF=linux-x86_64-normal-server-release
 ```
@@ -86,13 +84,14 @@ $ docker run -v `pwd`../../../../:/JetBrainsRuntime -it 942ea9900054
 Install the necessary tools, libraries, and headers with:
 ```
 $ sudo apt-get install autoconf make build-essential libx11-dev libxext-dev libxrender-dev libxtst-dev \
-       libxt-dev libxrandr-dev libcups2-dev libfontconfig1-dev libasound2-dev \
-       java-16-amazon-corretto-jdk
+       libxt-dev libxrandr-dev libcups2-dev libfontconfig1-dev libasound2-dev
 ```
+Get Java 17 (for instance, [Azul Zulu Builds of OpenJDK 17](https://www.azul.com/downloads/?version=java-17-ea&package=jdk)).
+
 Then run the following:
 ```
 $ cd JetBrainsRuntime
-$ git checkout master17
+$ git checkout jbr-dev
 $ sh ./configure
 $ make images
 ```
@@ -107,7 +106,7 @@ Install the following:
 * [Visual Studio compiler toolset](https://visualstudio.microsoft.com/downloads/).
  Install with the desktop development kit, which includes Windows SDK and compilers.
  Visual Studio 2019 is supported by default.
-* Java 16 (for instance, from [AdoptOpenJDK](https://adoptopenjdk.net/installation.html?variant=openjdk16&jvmVariant=hotspot#)).
+* Java 17 (for instance, [Azul Zulu Builds of OpenJDK 17](https://www.azul.com/downloads/?version=java-17-ea&os=windows&architecture=x86-64-bit&package=jdk).
  If you have problems while configuring, read [Java tips on Cygwin](http://horstmann.com/articles/cygwin-tips.html).

 From the command line: 
@@ -120,7 +119,7 @@ The first command sets up environment variables, the second starts a Cygwin shel
 In the Cygwin shell: 
 ```
 $ cd JetBrainsRuntime
-$ git checkout master17
+$ git checkout jbr-dev
 $ bash configure --with-toolchain-version=2019
 $ make images
 ```
@@ -128,13 +127,13 @@ This will build the release configuration under `./build/windows-x86_64-server-r

 ### macOS
 Install the following:
-* Xcode command line developer tools and `autoconf` via [Homebrew](getDpiInfo).
-* Java 16 (for instance, from [AdoptOpenJDK](https://adoptopenjdk.net/installation.html?variant=openjdk16&jvmVariant=hotspot#)).
+* Xcode command line developer tools and `autoconf` via [Homebrew](https://brew.sh/).
+* Java 17 (for instance, [Azul Zulu Builds of OpenJDK 17](https://www.azul.com/downloads/?version=java-17-ea&package=jdk)).

 From the command line:
 ```
 $ cd JetBrainsRuntime
-$ git checkout master17
+$ git checkout jbr-dev
 $ sh ./configure
 $ make images
 ```
@@ -173,4 +172,3 @@ Before you submit one, please sign our [Contributor License Agreement (CLA)](htt
 * [JetBrains Runtime on github](https://github.com/JetBrains/JetBrainsRuntime).
 * [OpenJDK build instructions](https://openjdk.java.net/groups/build/doc/building.html).
 * [OpenJDK test instructions](https://htmlpreview.github.io/?https://raw.githubusercontent.com/openjdk/jdk/master/doc/building.html#running-tests).
-* [How to develop OpenJDK with CLion](https://blog.jetbrains.com/clion/2020/03/openjdk-with-clion/).
--- a/bin/idea.sh
+++ b/bin/idea.sh
@@ -114,8 +114,8 @@ cd "$SCRIPT_DIR/.." ; OPENJDK_DIR=`pwd`
 IDEA_MAKE="$OPENJDK_DIR/make/ide/idea/jdk"
 IDEA_TEMPLATE="$IDEA_MAKE/template"

-cp -r "$TOPLEVEL_DIR/jb/project/idea-project-files"/* "$IDEA_OUTPUT"
-cp -r "$IDEA_TEMPLATE"/* "$IDEA_OUTPUT"
+cp -rn "$TOPLEVEL_DIR/jb/project/idea-project-files"/* "$IDEA_OUTPUT"
+cp -rn "$IDEA_TEMPLATE"/* "$IDEA_OUTPUT"

 #override template
 if [ -d "$TEMPLATES_OVERRIDE" ] ; then
@@ -321,4 +321,4 @@ if [ "$VERBOSE" = true ] ; then
  echo "
 Now you can open \"$IDEA_PROJECT_DIR\" as IDEA project
 You can also run 'bash \"$IDEA_OUTPUT/jdk-clion/update-project.sh\"' to generate Clion project"
-fi
+fi
--- a/doc/building.html
+++ b/doc/building.html
@@ -298,7 +298,7 @@
 <p>It is advisable to keep an older version of Xcode for building the JDK when updating Xcode. This <a href="http://iosdevelopertips.com/xcode/install-multiple-versions-of-xcode.html">blog page</a> has good suggestions on managing multiple Xcode versions. To use a specific version of Xcode, use <code>xcode-select -s</code> before running <code>configure</code>, or use <code>--with-toolchain-path</code> to point to the version of Xcode to use, e.g. <code>configure --with-toolchain-path=/Applications/Xcode8.app/Contents/Developer/usr/bin</code></p>
 <p>If you have recently (inadvertently) updated your OS and/or Xcode version, and the JDK can no longer be built, please see the section on <a href="#problems-with-the-build-environment">Problems with the Build Environment</a>, and <a href="#getting-help">Getting Help</a> to find out if there are any recent, non-merged patches available for this update.</p>
 <h3 id="microsoft-visual-studio">Microsoft Visual Studio</h3>
-<p>The minimum accepted version of Visual Studio is 2017. Older versions will not be accepted by <code>configure</code> and will not work. The maximum accepted version of Visual Studio is 2019.</p>
+<p>For aarch64 machines running Windows the minimum accepted version is Visual Studio 2019 (16.8 or higher). For all other platforms the minimum accepted version of Visual Studio is 2017.  Older versions will not be accepted by <code>configure</code> and will not work. For all platforms the maximum accepted version of Visual Studio is 2022.</p>
 <p>If you have multiple versions of Visual Studio installed, <code>configure</code> will by default pick the latest. You can request a specific version to be used by setting <code>--with-toolchain-version</code>, e.g. <code>--with-toolchain-version=2017</code>.</p>
 <p>If you have Visual Studio installed but <code>configure</code> fails to detect it, it may be because of <a href="#spaces-in-path">spaces in path</a>.</p>
 <h3 id="ibm-xl-cc">IBM XL C/C++</h3>
@@ -489,7 +489,7 @@
 <li><code>CONF</code> and <code>CONF_NAME</code> - Selecting the configuration(s) to use. See <a href="#using-multiple-configurations">Using Multiple Configurations</a></li>
 </ul>
 <h4 id="test-make-control-variables">Test Make Control Variables</h4>
-<p>These make control variables only make sense when running tests. Please see <a href="testing.html">Testing the JDK</a> for details.</p>
+<p>These make control variables only make sense when running tests. Please see <strong>Testing the JDK</strong> (<a href="testing.html">html</a>, <a href="testing.md">markdown</a>) for details.</p>
 <ul>
 <li><code>TEST</code></li>
 <li><code>TEST_JOBS</code></li>
@@ -515,7 +515,7 @@
 </ul>
 <p>To execute the most basic tests (tier 1), use:</p>
 <pre><code>make run-test-tier1</code></pre>
-<p>For more details on how to run tests, please see the <a href="testing.html">Testing the JDK</a> document.</p>
+<p>For more details on how to run tests, please see <strong>Testing the JDK</strong> (<a href="testing.html">html</a>, <a href="testing.md">markdown</a>).</p>
 <h2 id="cross-compiling">Cross-compiling</h2>
 <p>Cross-compiling means using one platform (the <em>build</em> platform) to generate output that can ran on another platform (the <em>target</em> platform).</p>
 <p>The typical reason for cross-compiling is that the build is performed on a more powerful desktop computer, but the resulting binaries will be able to run on a different, typically low-performing system. Most of the complications that arise when building for embedded is due to this separation of <em>build</em> and <em>target</em> systems.</p>
--- a/doc/building.md
+++ b/doc/building.md
@@ -374,9 +374,10 @@ available for this update.

 ### Microsoft Visual Studio

-The minimum accepted version of Visual Studio is 2017. Older versions will not
-be accepted by `configure` and will not work. The maximum accepted
-version of Visual Studio is 2019.
+For aarch64 machines running Windows the minimum accepted version is Visual Studio 2019 
+(16.8 or higher). For all other platforms the minimum accepted version of 
+Visual Studio is 2017. Older versions will not be accepted by `configure` and will 
+not work. For all platforms the maximum accepted version of Visual Studio is 2022.

 If you have multiple versions of Visual Studio installed, `configure` will by
 default pick the latest. You can request a specific version to be used by
@@ -818,7 +819,7 @@ configuration, as opposed to the "configure time" configuration.
 #### Test Make Control Variables

 These make control variables only make sense when running tests. Please see
-[Testing the JDK](testing.html) for details.
+**Testing the JDK** ([html](testing.html), [markdown](testing.md)) for details.

  * `TEST`
  * `TEST_JOBS`
@@ -865,8 +866,8 @@ To execute the most basic tests (tier 1), use:
 make run-test-tier1
 ```

-For more details on how to run tests, please see the [Testing
-the JDK](testing.html) document.
+For more details on how to run tests, please see **Testing the JDK**
+([html](testing.html), [markdown](testing.md)).

 ## Cross-compiling

--- a/doc/hotspot-style.html
+++ b/doc/hotspot-style.html
@@ -50,6 +50,7 @@
 <li><a href="#nullptr">nullptr</a></li>
 <li><a href="#atomic">&lt;atomic&gt;</a></li>
 <li><a href="#uniform-initialization">Uniform Initialization</a></li>
+<li><a href="#local-function-objects">Local Function Objects</a></li>
 <li><a href="#additional-permitted-features">Additional Permitted Features</a></li>
 <li><a href="#excluded-features">Excluded Features</a></li>
 <li><a href="#undecided-features">Undecided Features</a></li>
@@ -194,7 +195,7 @@ while ( test_foo(args...) ) { // No, excess spaces around control</code></pre></
 <p>Similar discussions for some other projects:</p>
 <ul>
 <li><p><a href="https://google.github.io/styleguide/cppguide.html">Google C++ Style Guide</a> — Currently (2020) targeting C++17.</p></li>
-<li><p><a href="https://chromium-cpp.appspot.com">C++11 and C++14 use in Chromium</a> — Categorizes features as allowed, banned, or to be discussed.</p></li>
+<li><p><a href="https://chromium.googlesource.com/chromium/src/+/main/styleguide/c++/c++11.md">C++11 and C++14 use in Chromium</a> — Categorizes features as allowed, banned, or to be discussed.</p></li>
 <li><p><a href="https://llvm.org/docs/CodingStandards.html">llvm Coding Standards</a> — Currently (2020) targeting C++14.</p></li>
 <li><p><a href="https://firefox-source-docs.mozilla.org/code-quality/coding-style/using_cxx_in_firefox_code.html">Using C++ in Mozilla code</a> — C++17 support is required for recent versions (2020).</p></li>
 </ul>
@@ -254,8 +255,7 @@ while ( test_foo(args...) ) { // No, excess spaces around control</code></pre></
 <li><p>Function argument deduction. This is always permitted, and indeed encouraged. It is nearly always better to allow the type of a function template argument to be deduced rather than explicitly specified.</p></li>
 <li><p><code>auto</code> variable declarations (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf">n1984</a>)<br> For local variables, this can be used to make the code clearer by eliminating type information that is obvious or irrelevant. Excessive use can make code much harder to understand.</p></li>
 <li><p>Function return type deduction (<a href="https://isocpp.org/files/papers/N3638.html">n3638</a>)<br> Only use if the function body has a very small number of <code>return</code> statements, and generally relatively little other code.</p></li>
-<li><p>Generic lambdas. Lambdas are not (yet) permitted.</p></li>
-<li><p>Lambda init captures. Lambdas are not (yet) permitted.</p></li>
+<li><p>Also see <a href="#lambdaexpressions">lambda expressions</a>.</p></li>
 </ul>
 <h3 id="expression-sfinae">Expression SFINAE</h3>
 <p><a href="https://en.cppreference.com/w/cpp/language/sfinae" title="Substitution Failure Is Not An Error">Substitution Failure Is Not An Error</a> (SFINAE) is a template metaprogramming technique that makes use of template parameter substitution failures to make compile-time decisions.</p>
@@ -288,6 +288,121 @@ while ( test_foo(args...) ) { // No, excess spaces around control</code></pre></
 <li><a href="https://en.cppreference.com/w/cpp/language/aggregate_initialization">aggregate initialization</a></li>
 </ul>
 <p>Although related, the use of <code>std::initializer_list</code> remains forbidden, as part of the avoidance of the C++ Standard Library in HotSpot code.</p>
+<h3 id="local-function-objects">Local Function Objects</h3>
+<ul>
+<li>Local function objects, including lambda expressions, may be used.</li>
+<li>Lambda expressions must only be used as a downward value.</li>
+<li>Prefer <code>[&amp;]</code> as the capture list of a lambda expression.</li>
+<li>Return type deduction for lambda expressions is permitted, and indeed encouraged.</li>
+<li>An empty parameter list for a lambda expression may be elided.</li>
+<li>A lambda expression must not be <code>mutable</code>.</li>
+<li>Generic lambda expressions are permitted.</li>
+<li>Lambda expressions should be relatively simple.</li>
+<li>Anonymous lambda expressions should not overly clutter the enclosing expression.</li>
+<li>An anonymous lambda expression must not be directly invoked.</li>
+<li>Bind expressions are forbidden.</li>
+</ul>
+<p>Single-use function objects can be defined locally within a function, directly at the point of use. This is an alternative to having a function or function object class defined at class or namespace scope.</p>
+<p>This usage was somewhat limited by C++03, which does not permit such a class to be used as a template parameter. That restriction was removed by C++11 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">n2657</a>). Use of this feature is permitted.</p>
+<p>Many HotSpot protocols involve &quot;function-like&quot; objects that involve some named member function rather than a call operator. For example, a function that performs some action on all threads might be written as</p>
+<pre><code>void do_something() {
+  struct DoSomething : public ThreadClosure {
+    virtual void do_thread(Thread* t) {
+      ... do something with t ...
+    }
+  } closure;
+  Threads::threads_do(&amp;closure);
+}</code></pre>
+<p>HotSpot code has historically usually placed the DoSomething class at namespace (or sometimes class) scope. This separates the function's code from its use, often to the detriment of readability. It requires giving the class a globally unique name (if at namespace scope). It also loses the information that the class is intended for use in exactly one place, and does not have any subclasses. (However, the latter can now be indicated by declaring it <code>final</code>.) Often, for simplicity, a local class will skip things like access control and accessor functions, giving the enclosing function direct access to the implementation and eliminating some boilerplate that might be provided if the class is in some outer (more accessible) scope. On the other hand, if there is a lot of surrounding code in the function body or the local class is of significant size, defining it locally can increase clutter and reduce readability.</p>
+<p><a name="lambdaexpressions"></a> C++11 added <em>lambda expressions</em> as a new way to write a function object. Simple lambda expressions can be significantly more concise than a function object, eliminating a lot of boiler-plate. On the other hand, a complex lambda expression may not provide much, if any, readability benefit compared to an ordinary function object. Also, while a lambda can encapsulate a call to a &quot;function-like&quot; object, it cannot be used in place of such.</p>
+<p>A common use for local functions is as one-use <a href="https://en.cppreference.com/w/cpp/language/raii" title="Resource Acquisition Is Initialization">RAII</a> objects. The amount of boilerplate for a function object class (local or not) makes such usage somewhat clumsy and verbose. But with the help of a small amount of supporting utility code, lambdas work particularly well for this use case.</p>
+<p>Another use for local functions is <a href="https://en.wikipedia.org/wiki/Partial_application" title="Partial Application">partial application</a>. Again here, lambdas are typically much simpler and less verbose than function object classes.</p>
+<p>Because of these benefits, lambda expressions are permitted in HotSpot code, with some restrictions and usage guidance. An anonymous lambda is one which is passed directly as an argument. A named lambda is the value of a variable, which is its name.</p>
+<p>Lambda expressions should only be passed downward. In particular, a lambda should not be returned from a function or stored in a global variable, whether directly or as the value of a member of some other object. Lambda capture is syntactically subtle (by design), and propagating a lambda in such ways can easily pass references to captured values to places where they are no longer valid. In particular, members of the enclosing <code>this</code> object are effectively captured by reference, even if the default capture is by-value. For such uses-cases a function object class should be used to make the desired value capturing and propagation explicit.</p>
+<p>Limiting the capture list to <code>[&amp;]</code> (implicitly capture by reference) is a simplifying restriction that still provides good support for HotSpot usage, while reducing the cases a reader must recognize and understand.</p>
+<ul>
+<li><p>Many common lambda uses require reference capture. Not permitting it would substantially reduce the utility of lambdas.</p></li>
+<li><p>Referential transparency. Implicit reference capture makes variable references in the lambda body have the same meaning they would have in the enclosing code. There isn't a semantic barrier across which the meaning of a variable changes.</p></li>
+<li><p>Explicit reference capture introduces significant clutter, especially when lambda expressions are relatively small and simple, as they should be in HotSpot code.</p></li>
+<li><p>There are a number of reasons why by-value capture might be used, but for the most part they don't apply to HotSpot code, given other usage restrictions.</p>
+<ul>
+<li><p>A primary use-case for by-value capture is to support escaping uses, where values captured by-reference might become invalid. That use-case doesn't apply if only downward lambdas are used.</p></li>
+<li><p>By-value capture can also make a lambda-local copy for mutation, which requires making the lambda <code>mutable</code>; see below.</p></li>
+<li><p>By-value capture might be viewed as an optimization, avoiding any overhead for reference capture of cheap to copy values. But the compiler can often eliminate any such overhead.</p></li>
+<li><p>By-value capture by a non-<code>mutable</code> lambda makes the captured values const, preventing any modification by the lambda and making the captured value unaffected by modifications to the outer variable. But this only applies to captured auto variables, not member variables, and is inconsistent with referential transparency.</p></li>
+</ul></li>
+<li><p>Non-capturing lambdas (with an empty capture list - <code>[]</code>) have limited utility. There are cases where no captures are required (pure functions, for example), but if the function is small and simple then that's obvious anyway.</p></li>
+<li><p>Capture initializers (a C++14 feature - <a href="https://isocpp.org/files/papers/N3649.html">N3649</a>) are not permitted. Capture initializers inherently increase the complexity of the capture list, and provide little benefit over an additional in-scope local variable.</p></li>
+</ul>
+<p>The use of <code>mutable</code> lambda expressions is forbidden because there don't seem to be many, if any, good use-cases for them in HotSpot. A lambda expression needs to be mutable in order to modify a by-value captured value. But with only downward lambdas, such usage seems likely to be rare and complicated. It is better to use a function object class in any such cases that arise, rather than requiring all HotSpot developers to understand this relatively obscure feature.</p>
+<p>While it is possible to directly invoke an anonymous lambda expression, that feature should not be used, as such a form can be confusing to readers. Instead, name the lambda and call it by name.</p>
+<p>Some reasons to prefer a named lambda instead of an anonymous lambda are</p>
+<ul>
+<li><p>The body contains non-trivial control flow or declarations or other nested constructs.</p></li>
+<li><p>Its role in an argument list is hard to guess without examining the function declaration. Give it a name that indicates its purpose.</p></li>
+<li><p>It has an unusual capture list.</p></li>
+<li><p>It has a complex explicit return type or parameter types.</p></li>
+</ul>
+<p>Lambda expressions, and particularly anonymous lambda expressions, should be simple and compact. One-liners are good. Anonymous lambdas should usually be limited to a couple lines of body code. More complex lambdas should be named. A named lambda should not clutter the enclosing function and make it long and complex; do continue to break up large functions via the use of separate helper functions.</p>
+<p>An anonymous lambda expression should either be a one-liner in a one-line expression, or isolated in its own set of lines. Don't place part of a lambda expression on the same line as other arguments to a function. The body of a multi-line lambda argument should be indented from the start of the capture list, as if that were the start of an ordinary function definition. The body of a multi-line named lambda should be indented one step from the variable's indentation.</p>
+<p>Some examples:</p>
+<ol type="1">
+<li><code>foo([&amp;] { ++counter; });</code></li>
+<li><code>foo(x, [&amp;] { ++counter; });</code></li>
+<li><code>foo([&amp;] { if (predicate) ++counter; });</code></li>
+<li><code>foo([&amp;] { auto tmp = process(x); tmp.f(); return tmp.g(); })</code></li>
+<li><p>Separate one-line lambda from other arguments:</p>
+<pre><code>foo(c.begin(), c.end(),
+    [&amp;] (const X&amp; x) { do_something(x); return x.value(); });</code></pre></li>
+<li><p>Indentation for multi-line lambda:</p>
+<pre><code>c.do_entries([&amp;] (const X&amp; x) {
+               do_something(x, a);
+               do_something1(x, b);
+               do_something2(x, c);
+             });</code></pre></li>
+<li><p>Separate multi-line lambda from other arguments:</p>
+<pre><code>foo(c.begin(), c.end(),
+    [&amp;] (const X&amp; x) {
+      do_something(x, a);
+      do_something1(x, b);
+      do_something2(x, c);
+    });</code></pre></li>
+<li><p>Multi-line named lambda:</p>
+<pre><code>auto do_entry = [&amp;] (const X&amp; x) {
+  do_something(x, a);
+  do_something1(x, b);
+  do_something2(x, c);
+};</code></pre></li>
+</ol>
+<p>Item 4, and especially items 6 and 7, are pushing the simplicity limits for anonymous lambdas. Item 6 might be better written using a named lambda:</p>
+<pre><code>c.do_entries(do_entry);</code></pre>
+<p>Note that C++11 also added <em>bind expressions</em> as a way to write a function object for partial application, using <code>std::bind</code> and related facilities from the Standard Library. <code>std::bind</code> generalizes and replaces some of the binders from C++03. Bind expressions are not permitted in HotSpot code. They don't provide enough benefit over lambdas or local function classes in the cases where bind expressions are applicable to warrant the introduction of yet another mechanism in this space into HotSpot code.</p>
+<p>References:</p>
+<ul>
+<li>Local and unnamed types as template parameters (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">n2657</a>)</li>
+<li>New wording for C++0x lambdas (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2927.pdf">n2927</a>)</li>
+<li>Generalized lambda capture (init-capture) (<a href="https://isocpp.org/files/papers/N3648.html">N3648</a>)</li>
+<li>Generic (polymorphic) lambda expressions (<a href="https://isocpp.org/files/papers/N3649.html">N3649</a>)</li>
+</ul>
+<p>References from C++17</p>
+<ul>
+<li>Wording for constexpr lambda (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0170r1.pdf">p0170r1</a>)</li>
+<li>Lambda capture of *this by Value (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0018r3.html">p0018r3</a>)</li>
+</ul>
+<p>References from C++20</p>
+<ul>
+<li>Allow lambda capture [=, this] (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0409r2.html">p0409r2</a>)</li>
+<li>Familiar template syntax for generic lambdas (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0428r2.pdf">p0428r2</a>)</li>
+<li>Simplifying implicit lambda capture (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0588r1.html">p0588r1</a>)</li>
+<li>Default constructible and assignable stateless lambdas (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0624r2.pdf">p0624r2</a>)</li>
+<li>Lambdas in unevaluated contexts (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0315r4.pdf">p0315r4</a>)</li>
+<li>Allow pack expansion in lambda init-capture (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0780r2.html">p0780r2</a>) (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2095r0.html">p2095r0</a>)</li>
+<li>Deprecate implicit capture of this via [=] (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0806r2.html">p0806r2</a>)</li>
+</ul>
+<p>References from C++23</p>
+<ul>
+<li>Make () more optional for lambdas (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p1102r2.html">p1102r2</a>)</li>
+</ul>
 <h3 id="additional-permitted-features">Additional Permitted Features</h3>
 <ul>
 <li><p><code>constexpr</code> (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf">n2235</a>) (<a href="https://isocpp.org/files/papers/N3652.html">n3652</a>)</p></li>
@@ -305,7 +420,6 @@ while ( test_foo(args...) ) { // No, excess spaces around control</code></pre></
 <li><p>Dynamic initialization and destruction with concurrency (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm">n2660</a>)</p></li>
 <li><p><code>final</code> virtual specifiers for classes and virtual functions (<a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">n2928</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">n3206</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">n3272</a>)</p></li>
 <li><p><code>override</code> virtual specifiers for virtual functions (<a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">n2928</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">n3206</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">n3272</a>)</p></li>
-<li><p>Local and unnamed types as template parameters (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">n2657</a>)</p></li>
 <li><p>Range-based <code>for</code> loops (<a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html">n2930</a>) (<a href="https://en.cppreference.com/w/cpp/language/range-for">range-for</a>)</p></li>
 </ul>
 <h3 id="excluded-features">Excluded Features</h3>
@@ -337,7 +451,6 @@ while ( test_foo(args...) ) { // No, excess spaces around control</code></pre></
 <li><p>Member initializers and aggregates (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html">n3653</a>)</p></li>
 <li><p><code>[[noreturn]]</code> attribute (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">n2761</a>)</p></li>
 <li><p>Rvalue references and move semantics</p></li>
-<li><p>Lambdas</p></li>
 </ul>
 </body>
 </html>
--- a/doc/hotspot-style.md
+++ b/doc/hotspot-style.md
@@ -409,7 +409,7 @@ Similar discussions for some other projects:
 * [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html) &mdash;
 Currently (2020) targeting C++17.

-* [C++11 and C++14 use in Chromium](https://chromium-cpp.appspot.com) &mdash;
+* [C++11 and C++14 use in Chromium](https://chromium.googlesource.com/chromium/src/+/main/styleguide/c++/c++11.md) &mdash;
 Categorizes features as allowed, banned, or to be discussed.

 * [llvm Coding Standards](https://llvm.org/docs/CodingStandards.html) &mdash;
@@ -596,9 +596,7 @@ use can make code much harder to understand.
 Only use if the function body has a very small number of `return`
 statements, and generally relatively little other code.

-* Generic lambdas.  Lambdas are not (yet) permitted.
-
-* Lambda init captures.  Lambdas are not (yet) permitted.
+* Also see [lambda expressions](#lambdaexpressions).

 ### Expression SFINAE

@@ -703,6 +701,273 @@ Some relevant sections from cppreference.com:
 Although related, the use of `std::initializer_list` remains forbidden, as
 part of the avoidance of the C++ Standard Library in HotSpot code.

+### Local Function Objects
+
+* Local function objects, including lambda expressions, may be used.
+* Lambda expressions must only be used as a downward value.
+* Prefer `[&]` as the capture list of a lambda expression.
+* Return type deduction for lambda expressions is permitted, and indeed encouraged.
+* An empty parameter list for a lambda expression may be elided.
+* A lambda expression must not be `mutable`.
+* Generic lambda expressions are permitted.
+* Lambda expressions should be relatively simple.
+* Anonymous lambda expressions should not overly clutter the enclosing expression.
+* An anonymous lambda expression must not be directly invoked.
+* Bind expressions are forbidden.
+
+Single-use function objects can be defined locally within a function,
+directly at the point of use.  This is an alternative to having a function
+or function object class defined at class or namespace scope.
+
+This usage was somewhat limited by C++03, which does not permit such a class
+to be used as a template parameter.  That restriction was removed by C++11
+([n2657]). Use of this feature is permitted.
+
+Many HotSpot protocols involve "function-like" objects that involve some
+named member function rather than a call operator.  For example, a function
+that performs some action on all threads might be written as
+
+```
+void do_something() {
+  struct DoSomething : public ThreadClosure {
+    virtual void do_thread(Thread* t) {
+      ... do something with t ...
+    }
+  } closure;
+  Threads::threads_do(&closure);
+}
+```
+
+HotSpot code has historically usually placed the DoSomething class at
+namespace (or sometimes class) scope.  This separates the function's code
+from its use, often to the detriment of readability.  It requires giving the
+class a globally unique name (if at namespace scope).  It also loses the
+information that the class is intended for use in exactly one place, and
+does not have any subclasses.  (However, the latter can now be indicated by
+declaring it `final`.)  Often, for simplicity, a local class will skip
+things like access control and accessor functions, giving the enclosing
+function direct access to the implementation and eliminating some
+boilerplate that might be provided if the class is in some outer (more
+accessible) scope.  On the other hand, if there is a lot of surrounding code
+in the function body or the local class is of significant size, defining it
+locally can increase clutter and reduce readability.
+
+<a name="lambdaexpressions"></a>
+C++11 added _lambda expressions_ as a new way to write a function object.
+Simple lambda expressions can be significantly more concise than a function
+object, eliminating a lot of boiler-plate.  On the other hand, a complex
+lambda expression may not provide much, if any, readability benefit compared
+to an ordinary function object.  Also, while a lambda can encapsulate a call
+to a "function-like" object, it cannot be used in place of such.
+
+A common use for local functions is as one-use [RAII] objects.  The amount
+of boilerplate for a function object class (local or not) makes such usage
+somewhat clumsy and verbose.  But with the help of a small amount of
+supporting utility code, lambdas work particularly well for this use case.
+
+Another use for local functions is [partial application][PARTIALAPP].  Again
+here, lambdas are typically much simpler and less verbose than function
+object classes.
+
+Because of these benefits, lambda expressions are permitted in HotSpot code,
+with some restrictions and usage guidance.  An anonymous lambda is one which
+is passed directly as an argument.  A named lambda is the value of a
+variable, which is its name.
+
+Lambda expressions should only be passed downward.  In particular, a lambda
+should not be returned from a function or stored in a global variable,
+whether directly or as the value of a member of some other object.  Lambda
+capture is syntactically subtle (by design), and propagating a lambda in
+such ways can easily pass references to captured values to places where they
+are no longer valid.  In particular, members of the enclosing `this` object
+are effectively captured by reference, even if the default capture is
+by-value.  For such uses-cases a function object class should be used to
+make the desired value capturing and propagation explicit.
+
+Limiting the capture list to `[&]` (implicitly capture by reference) is a
+simplifying restriction that still provides good support for HotSpot usage,
+while reducing the cases a reader must recognize and understand.
+
+* Many common lambda uses require reference capture.  Not permitting it
+would substantially reduce the utility of lambdas.
+
+* Referential transparency.  Implicit reference capture makes variable
+references in the lambda body have the same meaning they would have in the
+enclosing code.  There isn't a semantic barrier across which the meaning of
+a variable changes.
+
+* Explicit reference capture introduces significant clutter, especially when
+lambda expressions are relatively small and simple, as they should be in
+HotSpot code.
+
+* There are a number of reasons why by-value capture might be used, but for
+the most part they don't apply to HotSpot code, given other usage restrictions.
+
+    * A primary use-case for by-value capture is to support escaping uses,
+    where values captured by-reference might become invalid.  That use-case
+    doesn't apply if only downward lambdas are used.
+
+    * By-value capture can also make a lambda-local copy for mutation, which
+    requires making the lambda `mutable`; see below.
+
+    * By-value capture might be viewed as an optimization, avoiding any
+    overhead for reference capture of cheap to copy values.  But the
+    compiler can often eliminate any such overhead.
+
+    * By-value capture by a non-`mutable` lambda makes the captured values
+    const, preventing any modification by the lambda and making the captured
+    value unaffected by modifications to the outer variable.  But this only
+    applies to captured auto variables, not member variables, and is
+    inconsistent with referential transparency.
+
+* Non-capturing lambdas (with an empty capture list - `[]`) have limited
+utility.  There are cases where no captures are required (pure functions,
+for example), but if the function is small and simple then that's obvious
+anyway.
+
+* Capture initializers (a C++14 feature - [N3649]) are not permitted.
+Capture initializers inherently increase the complexity of the capture list,
+and provide little benefit over an additional in-scope local variable.
+
+The use of `mutable` lambda expressions is forbidden because there don't
+seem to be many, if any, good use-cases for them in HotSpot.  A lambda
+expression needs to be mutable in order to modify a by-value captured value.
+But with only downward lambdas, such usage seems likely to be rare and
+complicated.  It is better to use a function object class in any such cases
+that arise, rather than requiring all HotSpot developers to understand this
+relatively obscure feature.
+
+While it is possible to directly invoke an anonymous lambda expression, that
+feature should not be used, as such a form can be confusing to readers.
+Instead, name the lambda and call it by name.
+
+Some reasons to prefer a named lambda instead of an anonymous lambda are
+
+* The body contains non-trivial control flow or declarations or other nested
+constructs.
+
+* Its role in an argument list is hard to guess without examining the
+function declaration.  Give it a name that indicates its purpose.
+
+* It has an unusual capture list.
+
+* It has a complex explicit return type or parameter types.
+
+Lambda expressions, and particularly anonymous lambda expressions, should be
+simple and compact.  One-liners are good.  Anonymous lambdas should usually
+be limited to a couple lines of body code.  More complex lambdas should be
+named.  A named lambda should not clutter the enclosing function and make it
+long and complex; do continue to break up large functions via the use of
+separate helper functions.
+
+An anonymous lambda expression should either be a one-liner in a one-line
+expression, or isolated in its own set of lines.  Don't place part of a
+lambda expression on the same line as other arguments to a function.  The
+body of a multi-line lambda argument should be indented from the start of
+the capture list, as if that were the start of an ordinary function
+definition.  The body of a multi-line named lambda should be indented one
+step from the variable's indentation.
+
+Some examples:
+
+1. `foo([&] { ++counter; });`
+2. `foo(x, [&] { ++counter; });`
+3. `foo([&] { if (predicate) ++counter; });`
+4. `foo([&] { auto tmp = process(x); tmp.f(); return tmp.g(); })`
+5. Separate one-line lambda from other arguments:
+
+    ```
+    foo(c.begin(), c.end(),
+        [&] (const X& x) { do_something(x); return x.value(); });
+    ```
+6. Indentation for multi-line lambda:
+
+    ```
+    c.do_entries([&] (const X& x) {
+                   do_something(x, a);
+                   do_something1(x, b);
+                   do_something2(x, c);
+                 });
+    ```
+7. Separate multi-line lambda from other arguments:
+
+    ```
+    foo(c.begin(), c.end(),
+        [&] (const X& x) {
+          do_something(x, a);
+          do_something1(x, b);
+          do_something2(x, c);
+        });
+    ```
+8. Multi-line named lambda:
+
+    ```
+    auto do_entry = [&] (const X& x) {
+      do_something(x, a);
+      do_something1(x, b);
+      do_something2(x, c);
+    };
+    ```
+
+Item 4, and especially items 6 and 7, are pushing the simplicity limits for
+anonymous lambdas.  Item 6 might be better written using a named lambda:
+```
+c.do_entries(do_entry);
+```
+
+Note that C++11 also added _bind expressions_ as a way to write a function
+object for partial application, using `std::bind` and related facilities
+from the Standard Library.  `std::bind` generalizes and replaces some of the
+binders from C++03.  Bind expressions are not permitted in HotSpot code.
+They don't provide enough benefit over lambdas or local function classes in
+the cases where bind expressions are applicable to warrant the introduction
+of yet another mechanism in this space into HotSpot code.
+
+References:
+
+* Local and unnamed types as template parameters ([n2657])
+* New wording for C++0x lambdas ([n2927])
+* Generalized lambda capture (init-capture) ([N3648])
+* Generic (polymorphic) lambda expressions ([N3649])
+
+[n2657]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm 
+[n2927]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2927.pdf
+[N3648]: https://isocpp.org/files/papers/N3648.html
+[N3649]: https://isocpp.org/files/papers/N3649.html
+
+References from C++17
+
+* Wording for constexpr lambda ([p0170r1])
+* Lambda capture of *this by Value ([p0018r3])
+
+[p0170r1]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0170r1.pdf
+[p0018r3]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0018r3.html
+
+References from C++20
+
+* Allow lambda capture [=, this] ([p0409r2])
+* Familiar template syntax for generic lambdas ([p0428r2])
+* Simplifying implicit lambda capture ([p0588r1])
+* Default constructible and assignable stateless lambdas ([p0624r2])
+* Lambdas in unevaluated contexts ([p0315r4])
+* Allow pack expansion in lambda init-capture ([p0780r2]) ([p2095r0])
+* Deprecate implicit capture of this via [=] ([p0806r2])
+
+[p0409r2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0409r2.html
+[p0428r2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0428r2.pdf
+[p0588r1]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0588r1.html
+[p0624r2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0624r2.pdf
+[p0315r4]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0315r4.pdf
+[p0780r2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0780r2.html
+[p2095r0]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2095r0.html
+[p0806r2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0806r2.html
+
+References from C++23
+
+* Make () more optional for lambdas  ([p1102r2])
+
+[p1102r2]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p1102r2.html
+
 ### Additional Permitted Features

 * `constexpr`
@@ -757,9 +1022,6 @@ part of the avoidance of the C++ Standard Library in HotSpot code.
 ([n3206](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm)),
 ([n3272](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm))

-* Local and unnamed types as template parameters
-([n2657](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm))
-
 * Range-based `for` loops
 ([n2930](http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html))
 ([range-for](https://en.cppreference.com/w/cpp/language/range-for))
@@ -837,9 +1099,6 @@ features that have not yet been discussed.

 * Rvalue references and move semantics

-* Lambdas
-
-
 [ADL]: https://en.cppreference.com/w/cpp/language/adl 
  "Argument Dependent Lookup"

@@ -854,3 +1113,6 @@ features that have not yet been discussed.

 [SFINAE]: https://en.cppreference.com/w/cpp/language/sfinae
  "Substitution Failure Is Not An Error"
+
+[PARTIALAPP]: https://en.wikipedia.org/wiki/Partial_application
+  "Partial Application"
--- a/doc/ide.html
+++ b/doc/ide.html
@@ -41,14 +41,20 @@
 <pre class="shell"><code>make vscode-project-clangd</code></pre>
 <p>Additional instructions for configuring the given indexer will be displayed after the workspace has been generated.</p>
 <h4 id="visual-studio">Visual Studio</h4>
-<p>This section is a work in progress.</p>
-<pre class="shell"><code>make ide-project</code></pre>
+<p>The make system can generate a Visual Studio project for the Hotspot native source. After configuring, the project is generated using:</p>
+<pre class="shell"><code>make hotspot-ide-project</code></pre>
+<p>This creates a file named <code>jvm.vcxproj</code> in <code>ide\hotspot-visualstudio</code> subfolder of the build output folder. The file can be opened in Visual Studio via <code>File -&gt; Open -&gt; Project/Solution</code>.</p>
 <h4 id="compilation-database">Compilation Database</h4>
 <p>The make system can generate generic native code indexing support in the form of a <a href="https://clang.llvm.org/docs/JSONCompilationDatabase.html">Compilation Database</a> that can be used by many different IDEs and source code indexers.</p>
 <pre class="shell"><code>make compile-commands</code></pre>
 <p>It's also possible to generate the Compilation Database for the HotSpot source code only, which is a bit faster as it includes less information.</p>
 <pre class="shell"><code>make compile-commands-hotspot</code></pre>
 <h3 id="ide-support-for-java-code">IDE support for Java code</h3>
-<p>This section is a work in progress.</p>
+<h4 id="intellij-idea">IntelliJ IDEA</h4>
+<p>The JDK project has a script that can be used for indexing the project with IntelliJ. After configuring and building the JDK, an IntelliJ workspace can be generated by running the following command in the top-level folder of the cloned repository:</p>
+<pre class="shell"><code>bash bin/idea.sh</code></pre>
+<p>To use it, choose <code>File -&gt; Open...</code> in IntelliJ and select the folder where you ran the above script.</p>
+<p>Next, configure the project SDK in IntelliJ. Open <code>File -&gt; Project Structure -&gt; Project</code> and select <code>build/&lt;config&gt;/images/jdk</code> as the SDK to use.</p>
+<p>In order to run the tests from the IDE, you can use the JTReg plugin. Instructions for building and using the plugin can be found <a href="https://github.com/openjdk/jtreg/tree/master/plugins/idea">here</a>.</p>
 </body>
 </html>
--- a/doc/ide.md
+++ b/doc/ide.md
@@ -45,12 +45,17 @@ after the workspace has been generated.

 #### Visual Studio

-This section is a work in progress.
+The make system can generate a Visual Studio project for the Hotspot
+native source. After configuring, the project is generated using:

 ```shell
-make ide-project
+make hotspot-ide-project
 ```

+This creates a file named `jvm.vcxproj` in `ide\hotspot-visualstudio`
+subfolder of the build output folder. The file can be opened in Visual Studio
+via `File -> Open -> Project/Solution`.
+
 #### Compilation Database

 The make system can generate generic native code indexing support in the form of
@@ -70,4 +75,24 @@ make compile-commands-hotspot

 ### IDE support for Java code

-This section is a work in progress.
+#### IntelliJ IDEA
+
+The JDK project has a script that can be used for indexing the project
+with IntelliJ. After configuring and building the JDK, an IntelliJ workspace
+can be generated by running the following command in the top-level folder
+of the cloned repository:
+
+```shell
+bash bin/idea.sh
+```
+
+To use it, choose `File -> Open...` in IntelliJ and select the folder where
+you ran the above script.
+
+Next, configure the project SDK in IntelliJ. Open
+`File -> Project Structure -> Project` and select `build/<config>/images/jdk`
+as the SDK to use.
+
+In order to run the tests from the IDE, you can use the JTReg plugin.
+Instructions for building and using the plugin can be found
+[here](https://github.com/openjdk/jtreg/tree/master/plugins/idea).
--- a/doc/testing.html
+++ b/doc/testing.html
@@ -231,7 +231,7 @@ TEST FAILURE</code></pre>
    JTREG=&quot;JAVA_OPTIONS=-Djdk.test.docker.image.name=ubuntu
    -Djdk.test.docker.image.version=latest&quot;</code></pre>
 <h3 id="non-us-locale">Non-US locale</h3>
-<p>If your locale is non-US, some tests are likely to fail. To work around this you can set the locale to US. On Unix platforms simply setting <code>LANG=&quot;en_US&quot;</code> in the environment before running tests should work. On Windows, setting <code>JTREG=&quot;VM_OPTIONS=-Duser.language=en -Duser.country=US&quot;</code> helps for most, but not all test cases.</p>
+<p>If your locale is non-US, some tests are likely to fail. To work around this you can set the locale to US. On Unix platforms simply setting <code>LANG=&quot;en_US&quot;</code> in the environment before running tests should work. On Windows or MacOS, setting <code>JTREG=&quot;VM_OPTIONS=-Duser.language=en -Duser.country=US&quot;</code> helps for most, but not all test cases.</p>
 <p>For example:</p>
 <pre><code>$ export LANG=&quot;en_US&quot; &amp;&amp; make test TEST=...
 $ make test JTREG=&quot;VM_OPTIONS=-Duser.language=en -Duser.country=US&quot; TEST=...</code></pre>
--- a/doc/testing.md
+++ b/doc/testing.md
@@ -514,7 +514,7 @@ $ make test TEST="jtreg:test/hotspot/jtreg/containers/docker" \

 If your locale is non-US, some tests are likely to fail. To work around this
 you can set the locale to US. On Unix platforms simply setting `LANG="en_US"`
-in the environment before running tests should work. On Windows, setting
+in the environment before running tests should work. On Windows or MacOS, setting
 `JTREG="VM_OPTIONS=-Duser.language=en -Duser.country=US"` helps for most, but
 not all test cases.

--- a/jb/jdkdiff.py
+++ b/jb/jdkdiff.py
@@ -0,0 +1,230 @@
+#!/usr/bin/env python3
+
+import argparse
+import math
+import os.path
+import sys
+import subprocess
+
+
+def fatal(msg):
+    sys.stderr.write(f"[fatal] {msg}\n")
+    sys.exit(1)
+
+
+def verbose(options, *msg):
+    if options.verbose:
+        sys.stdout.write(f"[verbose] ")
+        sys.stdout.write(*msg)
+        sys.stdout.write('\n')
+
+
+def first_line(str):
+    return "" if not str else str.splitlines()[0]
+
+
+class Options:
+    def __init__(self):
+        ap = argparse.ArgumentParser(description="Show bugfixes differences between JBR and OpenJDK git repos",
+                                     epilog="Example: %(prog)s  --jdk ./jdk11u/ --jbr ./JetBrainsRuntime/ --path src/hotspot --limit 200")
+        ap.add_argument('--jdk', dest='jdkpath', help='path to OpenJDK git repo', required=True)
+        ap.add_argument('--jbr', dest='jbrpath', help='path to JBR git repo', required=True)
+        ap.add_argument('--path', dest='path', help='limit to changes in this path (relative to git root)')
+        ap.add_argument('--limit', dest='limit', help='limit to this many log entries in --jdk repo', type=int, default=-1)
+        ap.add_argument('-o', dest="output_dir", help="save patches to this directory (created if necessary)")
+        ap.add_argument('-v', dest='verbose', help="verbose output", default=False, action='store_true')
+        args = ap.parse_args()
+
+        if not os.path.isdir(args.jdkpath):
+            fatal(f"{args.jdkpath} not a directory")
+
+        if not os.path.isdir(args.jbrpath):
+            fatal(f"{args.jbrpath} not a directory")
+
+        if not git_is_available():
+            fatal("can't run git commands; make sure git is in PATH")
+
+        self.jdkpath = args.jdkpath
+        self.jbrpath = args.jbrpath
+        self.path = args.path
+        self.limit = args.limit
+        self.output_dir = args.output_dir
+        self.verbose = args.verbose
+
+
+class GitRepo:
+    def __init__(self, rootpath):
+        self.rootpath = rootpath
+
+    def run_git_cmd(self, git_args):
+        args = ["git", "-C", self.rootpath]
+        args.extend(git_args)
+        # print(f"Runnig git cmd '{' '.join(args)}'")
+        p = subprocess.run(args, capture_output=True, text=True)
+        if p.returncode != 0:
+            fatal(f"git returned non-zero code in {self.rootpath} ({first_line(p.stderr)})")
+        return p.stdout
+
+    def save_git_cmd(self, fname, git_args):
+        args = ["git", "-C", self.rootpath]
+        args.extend(git_args)
+        # print(f"Runnig git cmd '{' '.join(args)}'")
+        with open(fname, "w") as stdout_file:
+            p = subprocess.run(args, stdout=stdout_file)
+            if p.returncode != 0:
+                fatal(f"git returned non-zero code in {self.rootpath} ({first_line(p.stderr)})")
+
+    def current_branch(self):
+        branch_name = self.run_git_cmd(["branch", "--show-current"]).strip()
+        return branch_name
+
+    def log(self, path=None, limit=None):
+        cmds = ["log", "--no-decorate"]
+        if limit:
+            cmds.extend(["-n", str(limit)])
+        if path:
+            cmds.append(path)
+        full_log = self.run_git_cmd(cmds)
+        return full_log
+
+
+class Commit:
+    def __init__(self, lines):
+        self.sha = lines[0].split()[1]
+        self.message = ""
+        self.bugid = None
+
+        # Commit message starts after one blank line
+        read_message = False
+        for l in lines:
+            if read_message:
+                self.message += l + "\n"
+            if not read_message and l == "":
+                read_message = True
+
+        if self.message and self.message != "" and ":" in self.message:
+            maybe_bugid = self.message.split(":")[0].strip()
+            if 10 >= len(maybe_bugid) >= 4:
+                self.bugid = maybe_bugid
+
+
+class History:
+    def __init__(self, log):
+        log_itr = iter(log.splitlines())
+        self.commits = []
+        commit_lines = []
+        for line in log_itr:
+            if line.startswith("commit ") and len(commit_lines) > 0:
+                commit = Commit(commit_lines)
+                self.commits.append(commit)
+                commit_lines = []
+            commit_lines.append(line)
+
+        if len(commit_lines) > 0:
+            commit = Commit(commit_lines)
+            self.commits.append(commit)
+
+    def contains(self, str):
+        return any(str in commit.message for commit in self.commits)
+
+    def size(self):
+        return len(self.commits)
+
+
+def print_explanation(options, jdk, jbr):
+    verbose(options, f"Reading history from '{jdk.rootpath}' on branch '{jdk.current_branch()}'")
+    if options.path:
+        verbose(options, f"\t(only under '{options.path}')")
+    verbose(options, f"Searching for same fixes in '{jbr.rootpath}' on branch '{jbr.current_branch()}'")
+
+
+def git_is_available():
+    p = None
+    try:
+        p = subprocess.run(["git", "--help"], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+    except:
+        pass
+    return p is not None and p.returncode == 0
+
+
+def main():
+    check_python_min_requirements()
+
+    options = Options()
+
+    jdk = GitRepo(options.jdkpath)
+    jbr = GitRepo(options.jbrpath)
+
+    print_explanation(options, jdk, jbr)
+
+    commits_to_save = []
+    try:
+        jdk_log = jdk.log(options.path, options.limit)
+        jdk_history = History(jdk_log)
+
+        jbr_log = jbr.log(options.path)
+        jbr_history = History(jbr_log)
+
+        verbose(options, f"Read {jdk_history.size()} commits in JDK, {jbr_history.size()} in JBR")
+
+        for c in jdk_history.commits:
+            if c.bugid:
+                verbose(options, f"Looking for bugfix for {c.bugid}")
+                if not jbr_history.contains(c.bugid):
+                    commits_to_save.append(c)
+                    print(f"[note] Fix for {c.bugid} not found in JBR ({jbr.rootpath})")
+                    print(f"    commit {c.sha}")
+                    print(f"    {first_line(c.message).strip()}")
+    except KeyboardInterrupt:
+        fatal("Interrupted")
+
+    if len(commits_to_save) > 0 and options.output_dir:
+        print()
+        if not os.path.exists(options.output_dir):
+            verbose(options, f"Creating output directory {options.output_dir}")
+            os.makedirs(options.output_dir)
+        nzeroes = len(str(len(commits_to_save)))
+        for i, c in enumerate(reversed(commits_to_save)):
+            fname = os.path.join(options.output_dir, f"{str(i).zfill(nzeroes)}-{c.bugid}.patch")
+            print(f"[note] {c.bugid} saved as {fname}")
+            fname = os.path.abspath(fname)
+            jdk.save_git_cmd(fname, ["format-patch", "-1", c.sha, "--stdout"])
+
+        script_fname = os.path.join(options.output_dir, "apply.sh")
+        with open(script_fname, "w") as script_file:
+            print(apply_script_code.format(os.path.abspath(jbr.rootpath), os.path.abspath(options.output_dir)),
+                  file=script_file)
+            print(f"[note] Execute 'bash {script_fname}' to apply patches to {jbr.rootpath}")
+
+
+def check_python_min_requirements():
+    if sys.version_info < (3, 6):
+        fatal("Minimum version 3.6 is required to run this script")
+
+
+apply_script_code = """
+#!/bin/bash
+
+GITROOT={0}
+PATCHROOT={1}
+
+cd $PATCHROOT || exit 1
+PATCHES=$(find $PATCHROOT -name '*.patch' | sort -n)
+
+for P in $PATCHES; do
+    git -C $GITROOT am $P
+    if [ $? != 0 ]; then
+        mv "$P" "$P.failed"
+        echo "[ERROR] Patch $P did not apply cleanly. Try applying it manually."
+        echo "[NOTE]  Execute this script to apply the remaining patches."
+        exit 1
+    else
+        mv "$P" "$P.done"
+    fi
+done
+
+echo "[NOTE] Done applying patches; check $PATCHROOT for .patch and .patch.failed to see if all have been applied."
+"""
+
+if __name__ == '__main__':
+    main()
--- a/jb/project/docker/Dockerfile
+++ b/jb/project/docker/Dockerfile
@@ -4,9 +4,9 @@ RUN yum -y install centos-release-scl
 RUN yum -y install devtoolset-8
 RUN yum -y install zip bzip2 unzip tar wget make autoconf automake libtool gcc gcc-c++ libstdc++-devel alsa-devel cups-devel xorg-x11-devel libjpeg62-devel giflib-devel freetype-devel file which libXtst-devel libXt-devel libXrender-devel alsa-lib-devel fontconfig-devel libXrandr-devel libXi-devel git
 # Install Java 16
-RUN wget https://cdn.azul.com/zulu/bin/zulu16.28.11-ca-jdk16.0.0-linux_x64.tar.gz \
+RUN wget https://cdn.azul.com/zulu/bin/zulu17.28.13-ca-jdk17.0.0-linux_x64.tar.gz \
  -O - | tar xz -C /
-RUN mv /zulu16.28.11-ca-jdk16.0.0-linux_x64 /jdk16.0.0
+RUN mv /zulu17.28.13-ca-jdk17.0.0-linux_x64 /jdk17.0.0
 ENV PATH /opt/rh/devtoolset-8/root/usr/bin:$PATH
 RUN mkdir .git
 RUN git config user.email "teamcity@jetbrains.com"
--- a/jb/project/docker/Dockerfile.aarch64
+++ b/jb/project/docker/Dockerfile.aarch64
@@ -31,7 +31,6 @@ RUN export DEBIAN_FRONTEND=noninteractive \
        libxt-dev \
        libxtst-dev \
        make \
-        rsync \
        tar \
        unzip \
        zip && \
--- a/jb/project/docker/Dockerfile.musl_aarch64
+++ b/jb/project/docker/Dockerfile.musl_aarch64
@@ -1,22 +0,0 @@
-# NOTE: This Dockerfile is meant to be used from the mkdocker_musl_aarch64.sh script.
-
-# Pull a concrete version of Linux that does NOT recieve updates after it's
-# been created.  This is so that the image is as stable as possible to make
-# image creation reproducible.
-# NB: this also means there may be no security-related fixes there, need to
-# move the version to the next manually.
-FROM arm64v8/alpine:3.12
-
-# Install the necessary build tools
-RUN     apk --no-cache add --update bash grep tar zip bzip2 rsync fontconfig build-base \
-	    git libx11-dev libxext-dev libxrandr-dev libxrender-dev libxt-dev \
-	    libxtst-dev autoconf freetype-dev cups-dev alsa-lib-dev file \
-	    fontconfig fontconfig-dev linux-headers
-
-# Set up boot JDK for building
-COPY boot_jdk_musl_aarch64.tar.gz /jdk17/
-RUN cd /jdk17 && tar --strip-components=1 -xzf boot_jdk_musl_aarch64.tar.gz && rm /jdk17/boot_jdk_musl_aarch64.tar.gz
-ENV BOOT_JDK=/jdk17
-
-RUN git config --global user.email "teamcity@jetbrains.com" && \
-    git config --global user.name "builduser"
--- a/jb/project/docker/Dockerfile.musl_x64
+++ b/jb/project/docker/Dockerfile.musl_x64
@@ -1,22 +0,0 @@
-# NOTE: This Dockerfile is meant to be used from the mkdocker_musl_x64.sh script.
-
-# Pull a concrete version of Linux that does NOT recieve updates after it's
-# been created.  This is so that the image is as stable as possible to make
-# image creation reproducible.
-# NB: this also means there may be no security-related fixes there, need to
-# move the version to the next manually.
-FROM alpine:3.5
-
-# Install the necessary build tools
-RUN     apk --no-cache add --update bash grep tar zip bzip2 rsync fontconfig build-base \
-	    git libx11-dev libxext-dev libxrandr-dev libxrender-dev libxt-dev \
-	    libxtst-dev autoconf freetype-dev cups-dev alsa-lib-dev file \
-	    fontconfig fontconfig-dev linux-headers
-
-# Set up boot JDK for building
-COPY boot_jdk_musl_amd64.tar.gz /jdk17/
-RUN cd /jdk17 && tar --strip-components=1 -xzf boot_jdk_musl_amd64.tar.gz && rm /jdk17/boot_jdk_musl_amd64.tar.gz
-ENV BOOT_JDK=/jdk17
-
-RUN git config --global user.email "teamcity@jetbrains.com" && \
-    git config --global user.name "builduser"
--- a/jb/project/docker/Dockerfile.x86
+++ b/jb/project/docker/Dockerfile.x86
@@ -1,55 +1,7 @@
-# NOTE: This Dockerfile is meant to be used from the mkdocker_x86.sh script.
+FROM i386/ubuntu:xenial

-# Pull a concrete version of Linux that does NOT receive updates after it's
-# been created.  This is so that the image is as stable as possible to make
-# image creation reproducible.
-# NB: this also means there may be no security-related fixes there, need to
-# move the version to the next manually.
-#FROM i386/ubuntu:xenial
-#FROM i386/ubuntu:bionic
-FROM i386/ubuntu:focal
-
-RUN linux32 \
-    apt-get update && apt-get install -y --no-install-recommends apt-utils
-RUN export DEBIAN_FRONTEND=noninteractive \
-    export DEBCONF_NONINTERACTIVE_SEEN=true && \
-    echo 'tzdata tzdata/Areas select Etc' | debconf-set-selections; \
-    echo 'tzdata tzdata/Zones/Etc select UTC' | debconf-set-selections; \
-    linux32 \
-    apt-get -y install \
-        autoconf \
-        build-essential \
-        curl \
-        file \
-        git \
-        libx11-dev \
-        libxext-dev \
-        libxrender-dev \
-        libxrandr-dev \
-        libxtst-dev \
-        libxt-dev \
-        libcups2-dev \
-        libasound2-data \
-#        libpng12-0 \
-        libasound2 \
-        libfreetype6 \
-        libfontconfig1-dev \
-        libasound2-dev \
-        rsync \
-        unzip \
-        zip
-RUN linux32 \
-    apt-get -y install \
-        g++-10 \
-        gcc-10 && \
-    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10 && \
-    apt-get clean -qy && \
-    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
-
-# Set up boot JDK for building
-COPY boot_jdk_x86.tar.gz /jdk17/
-RUN cd /jdk17 && tar --strip-components=1 -xzf boot_jdk_x86.tar.gz && rm /jdk17/boot_jdk_x86.tar.gz
-ENV BOOT_JDK=/jdk17
-
-RUN git config --global user.email "teamcity@jetbrains.com" && \
-    git config --global user.name "builduser"
+RUN linux32 apt-get update && apt-get install -y --no-install-recommends apt-utils
+COPY jbrsdk-11.0.5-b1 /jbrsdk-11.0.5-b1
+RUN linux32 apt-get -y install file build-essential zip unzip curl libx11-dev libxext-dev \
+  libxrender-dev libxrandr-dev libxtst-dev libxt-dev libcups2-dev libasound2-data \
+  libpng12-0 libasound2 libfreetype6 libfontconfig1-dev libasound2-dev autoconf
--- a/jb/project/docker/mkdocker_aarch64.sh
+++ b/jb/project/docker/mkdocker_aarch64.sh
@@ -1,10 +1,7 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # This script creates a Docker image suitable for building AArch64 variant
-# of the JetBrains Runtime version 17.
+# of the JetBrains Runtime "dev" version.

 BOOT_JDK_REMOTE_FILE=zulu17.30.15-ca-jdk17.0.1-linux_aarch64.tar.gz
 BOOT_JDK_SHA=4d9c9116eb0cdd2d7fb220d6d27059f4bf1b7e95cc93d5512bd8ce3791af86c7
@@ -22,7 +19,7 @@ sha256sum -c - <<EOF
 $BOOT_JDK_SHA *$BOOT_JDK_LOCAL_FILE
 EOF

-docker build -t jbr17buildenv -f Dockerfile.aarch64 .
+docker build -t jbrdevenv_arm64v8 -f Dockerfile.aarch64 .

 # NB: the resulting container can (and should) be used without the network
 # connection (--network none) during build in order to reduce the chance
--- a/jb/project/docker/mkdocker_musl_aarch64.sh
+++ b/jb/project/docker/mkdocker_musl_aarch64.sh
@@ -1,29 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
-
-# This script creates a Docker image suitable for building musl AArch64 variant
-# of the JetBrains Runtime version 17.
-
-BOOT_JDK_REMOTE_FILE=zulu17.32.13-ca-jdk17.0.2-linux_musl_aarch64.tar.gz
-BOOT_JDK_SHA=6b920559abafbe9bdef386a20ecf3a2f318bc1f0d8359eb1f95aee26606bbc70
-BOOT_JDK_LOCAL_FILE=boot_jdk_musl_aarch64.tar.gz
-
-if [ ! -f $BOOT_JDK_LOCAL_FILE ]; then
-    # Obtain "boot JDK" from outside of the container.
-    wget -nc https://cdn.azul.com/zulu/bin/${BOOT_JDK_REMOTE_FILE} -O $BOOT_JDK_LOCAL_FILE
-else
-    echo "boot JDK \"$BOOT_JDK_LOCAL_FILE\" present, skipping download"
-fi
-
-# Verify that what we've downloaded can be trusted.
-sha256sum -c - <<EOF
-$BOOT_JDK_SHA *$BOOT_JDK_LOCAL_FILE
-EOF
-
-docker build -t jbr17buildenv -f Dockerfile.musl_aarch64 .
-
-# NB: the resulting container can (and should) be used without the network
-# connection (--network none) during build in order to reduce the chance
-# of build contamination.
--- a/jb/project/docker/mkdocker_musl_x64.sh
+++ b/jb/project/docker/mkdocker_musl_x64.sh
@@ -1,29 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
-
-# This script creates a Docker image suitable for building musl-x64 variant
-# of the JetBrains Runtime version 17.
-
-BOOT_JDK_REMOTE_FILE=zulu17.32.13-ca-jdk17.0.2-linux_musl_x64.tar.gz
-BOOT_JDK_SHA=bcc5342011bd9f3643372aadbdfa68d47463ff0d8621668a0bdf2910614d95c6
-BOOT_JDK_LOCAL_FILE=boot_jdk_musl_amd64.tar.gz
-
-if [ ! -f $BOOT_JDK_LOCAL_FILE ]; then
-    # Obtain "boot JDK" from outside of the container.
-    wget -nc https://cdn.azul.com/zulu/bin/${BOOT_JDK_REMOTE_FILE} -O $BOOT_JDK_LOCAL_FILE
-else
-    echo "boot JDK \"$BOOT_JDK_LOCAL_FILE\" present, skipping download"
-fi
-
-# Verify that what we've downloaded can be trusted.
-sha256sum -c - <<EOF
-$BOOT_JDK_SHA *$BOOT_JDK_LOCAL_FILE
-EOF
-
-docker build -t jbr17buildenv -f Dockerfile.musl_x64 .
-
-# NB: the resulting container can (and should) be used without the network
-# connection (--network none) during build in order to reduce the chance
-# of build contamination.
--- a/jb/project/docker/mkdocker_x86.sh
+++ b/jb/project/docker/mkdocker_x86.sh
@@ -1,26 +0,0 @@
-#!/bin/bash -x
-
-# This script creates a Docker image suitable for building x86 variant
-# of the JetBrains Runtime version 17.
-
-BOOT_JDK_REMOTE_FILE=zulu17.34.19-ca-jdk17.0.3-linux_i686.tar.gz
-BOOT_JDK_SHA=1c35c374ba0001e675d6e80819d5be900c4e141636d5e484992a8c550be14481
-BOOT_JDK_LOCAL_FILE=boot_jdk_x86.tar.gz
-
-if [ ! -f $BOOT_JDK_LOCAL_FILE ]; then
-    # Obtain "boot JDK" from outside of the container.
-    wget -nc https://cdn.azul.com/zulu/bin/${BOOT_JDK_REMOTE_FILE} -O $BOOT_JDK_LOCAL_FILE
-else
-    echo "boot JDK \"$BOOT_JDK_LOCAL_FILE\" present, skipping download"
-fi
-
-# Verify that what we've downloaded can be trusted.
-sha256sum -c - <<EOF
-$BOOT_JDK_SHA *$BOOT_JDK_LOCAL_FILE
-EOF
-
-docker build -t jetbrains/runtime:jbr17env_x86 -f Dockerfile.x86 .
-
-# NB: the resulting container can (and should) be used without the network
-# connection (--network none) during build in order to reduce the chance
-# of build contamination.
--- a/jb/project/tools/common/scripts/build-jbr-api.sh
+++ b/jb/project/tools/common/scripts/build-jbr-api.sh
@@ -1,6 +1,4 @@
-#!/bin/bash
-
-set -euo pipefail
+#!/bin/sh

 # $1 - Boot JDK
 # $2 - JBR part of API version
--- a/jb/project/tools/common/scripts/common.sh
+++ b/jb/project/tools/common/scripts/common.sh
@@ -1,73 +1,50 @@
-#!/bin/bash
+#!/bin/bash -x

-set -euo pipefail
-set -x
-
-function check_bundle_type_maketest() {
-  # check whether last char is 't', if so remove it
-  if [ "${bundle_type: -1}" == "t" ]; then
-    bundle_type="${bundle_type%?}"
-    do_maketest=1
-  else
-    do_maketest=0
-  fi
-}
-
-function getVersionProp() {
-  grep "^${1}" make/conf/version-numbers.conf | cut -d'=' -f2
-}
+tag_prefix="jdk-"

 while getopts ":i?" o; do
    case "${o}" in
-        i) INC_BUILD=1 ;;
+        i)
+            i="incremental build"
+            INC_BUILD=1
+            ;;
    esac
 done
 shift $((OPTIND-1))

-if [[ $# -lt 2 ]]; then
-  echo "Required at least two arguments: build_number bundle_type"
-  exit 1
+if [ $# -le $min_parameters_count ]; then
+  build_number=$1
+  bundle_type=$2
+  architecture=$3 # aarch64 or x64
+else
+  JBSDK_VERSION=$1
+  JDK_BUILD_NUMBER=$2
+  build_number=$3
+  bundle_type=$4
+  architecture=$5 # aarch64 or x64
 fi

-build_number=$1
-bundle_type=$2
-# shellcheck disable=SC2034
-architecture=${3:-x64} # aarch64 or x64
-
-check_bundle_type_maketest
-
-tag_prefix="jbr-"
-OPENJDK_TAG=$(git log --simplify-by-decoration --decorate=short --pretty=short | grep "$tag_prefix" | cut -d "(" -f2 | cut -d ")" -f1 | awk '{print $2}' | sort -t "-" -k 2 -g | tail -n 1 | tr -d ",")
-VERSION_FEATURE=$(getVersionProp "DEFAULT_VERSION_FEATURE")
-VERSION_INTERIM=$(getVersionProp "DEFAULT_VERSION_INTERIM")
-VERSION_UPDATE=$(getVersionProp "DEFAULT_VERSION_UPDATE")
-[[ $VERSION_UPDATE = 0 ]] && JBSDK_VERSION="$VERSION_FEATURE" || JBSDK_VERSION="${VERSION_FEATURE}.${VERSION_INTERIM}.${VERSION_UPDATE}"
+OPENJDK_TAG=$(git log --simplify-by-decoration --decorate=short --pretty=short | grep "$tag_prefix" | cut -d "(" -f2 | cut -d ")" -f1 | awk '{print $2}' | sort -t "-" -k 2 -g | tail -n 1)
+JBSDK_VERSION=${JBSDK_VERSION:=$(echo $OPENJDK_TAG | awk -F "-|[+]" '{print $2}')}
 echo "##teamcity[setParameter name='env.JBSDK_VERSION' value='${JBSDK_VERSION}']"
 JDK_BUILD_NUMBER=${JDK_BUILD_NUMBER:=$(echo $OPENJDK_TAG | awk -F "-|[+]" '{print $3}')}
-[ -z $JDK_BUILD_NUMBER ] && JDK_BUILD_NUMBER=1
 echo "##teamcity[setParameter name='env.JDK_UPDATE_NUMBER' value='${JDK_BUILD_NUMBER}']"
+JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')

 VENDOR_NAME="JetBrains s.r.o."
-VENDOR_VERSION_STRING="JBR-${JBSDK_VERSION}+${JDK_BUILD_NUMBER}-${build_number}"
+VENDOR_VERSION_STRING="JBR-${JBSDK_VERSION_WITH_DOTS}+${JDK_BUILD_NUMBER}-${build_number}"
 [ -z "$bundle_type" ] || VENDOR_VERSION_STRING="${VENDOR_VERSION_STRING}-${bundle_type}"

 do_reset_changes=0
 do_reset_dcevm=0
 HEAD_REVISION=0

-STATIC_CONF_ARGS=""
-common_conf_props_file="jb/project/tools/common/static_conf_args.txt"
-if [[ -f "$common_conf_props_file" ]]; then
-    STATIC_CONF_ARGS=$(<$common_conf_props_file)
-fi
 OS_NAME=$(uname -s)
 # Enable reproducible builds
 TZ=UTC
 export TZ
 SOURCE_DATE_EPOCH="$(git log -1 --pretty=%ct)"
 export SOURCE_DATE_EPOCH
-USER=builduser
-export USER

 case "$OS_NAME" in
    Linux)
@@ -75,47 +52,27 @@ case "$OS_NAME" in
        BUILD_TIME="$(date --utc --date=@$SOURCE_DATE_EPOCH +%F)"
        REPRODUCIBLE_TAR_OPTS="--mtime=@$SOURCE_DATE_EPOCH --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime"
        ;;
-    CYGWIN*)
-        COPYRIGHT_YEAR="$(date --utc --date=@$SOURCE_DATE_EPOCH +%Y)"
-        BUILD_TIME="$(date --utc --date=@$SOURCE_DATE_EPOCH +%F)"
-        REPRODUCIBLE_TAR_OPTS="--mtime=@$SOURCE_DATE_EPOCH --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime"
-        ;;
    Darwin)
        COPYRIGHT_YEAR="$(date -u -r $SOURCE_DATE_EPOCH +%Y)"
        BUILD_TIME="$(date -u -r $SOURCE_DATE_EPOCH +%F)"
        TOUCH_TIME="$(date -u -r $SOURCE_DATE_EPOCH +%Y%m%d%H%M.%S)"
        REPRODUCIBLE_TAR_OPTS="--uid 0 --gid 0 --numeric-owner"
        ;;
+    *)
+        # TODO: Windows
+        ;;
 esac

-WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS="--with-native-debug-symbols=zipped"
-
 REPRODUCIBLE_BUILD_OPTS="--enable-reproducible-build
  --with-source-date=$SOURCE_DATE_EPOCH
  --with-hotspot-build-time=$BUILD_TIME
  --with-copyright-year=$COPYRIGHT_YEAR
-  --disable-absolute-paths-in-output"
-
-function zip_native_debug_symbols() {
-  image_bundle_path=$(echo $1 | cut -d"/" -f-4)
-  jdk_name=$(echo $1 | cut -d"/" -f5)
-  jbr_diz_name=$2
-
-  [ -d "dizfiles" ] && rm -rf dizfiles
-  mkdir dizfiles
-
-  rsync_target="../../../../dizfiles"
-  [ -z "$jdk_name" ] && rsync_target=$rsync_target"/"$jbr_diz_name
-  (cd $image_bundle_path && find . -name '*.diz' -exec rsync -R {} $rsync_target \;)
-  [ ! -z "$jdk_name" ] && mv dizfiles/$jdk_name dizfiles/$jbr_diz_name
-
-  (cd dizfiles && find $jbr_diz_name -print0 | COPYFILE_DISABLE=1 \
-    tar --no-recursion --null -T - -czf ../"$jbr_diz_name".tar.gz) || do_exit $?
-}
+  --disable-absolute-paths-in-output
+  --with-build-user=builduser"

 function do_exit() {
  exit_code=$1
-  [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
+  [ $do_reset_changes -eq 1 ] && git checkout HEAD modules.list src/java.desktop/share/classes/module-info.java
  if [ $do_reset_dcevm -eq 1 ]; then
    [ ! -z $HEAD_REVISION ] && git reset --hard $HEAD_REVISION
  fi
@@ -144,7 +101,7 @@ function update_jsdk_mods() {
  # re-create java.base.jmod with updated hashes
  tmp=.java.base.$$.tmp
  mkdir "$tmp" || exit $?
-  hash_modules=$("$__jsdk"/bin/jmod describe "$__orig_jsdk_mods"/java.base.jmod | grep hashes | awk '{print $2}' | tr '\n' '|' | sed s/\|$//) || exit $?
+  hash_modules=$("$JSDK"/bin/jmod describe "$__orig_jsdk_mods"/java.base.jmod | grep hashes | awk '{print $2}' | tr '\n' '|' | sed s/\|$//) || exit $?
  "$__jsdk"/bin/jmod extract --dir "$tmp" "$__orig_jsdk_mods"/java.base.jmod || exit $?
  rm "$__updated_jsdk_mods"/java.base.jmod || exit $? # temp exclude from path
  "$__jsdk"/bin/jmod \
--- a/jb/project/tools/common/static_conf_args.txt
+++ b/jb/project/tools/common/static_conf_args.txt
@@ -1 +0,0 @@
--with-vendor-vm-bug-url=https://youtrack.jetbrains.com/issues/JBR
--- a/jb/project/tools/linux/scripts/mkimages_aarch64.sh
+++ b/jb/project/tools/linux/scripts/mkimages_aarch64.sh
@@ -1,163 +1,82 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
+#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
 #
-# This script makes test-image along with JDK images when bundle_type is set to "jcef".
-# If the character 't' is added at the end of bundle_type then it also makes test-image along with JDK images.
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
 #
-# Environment variables:
-#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument
-#               to configure
-#               By default JDK_BUILD_NUMBER is set zero
-#   JCEF_PATH - specifies the path to the directory with JCEF binaries.
-#               By default JCEF binaries should be located in ./jcef_linux_aarch64

+min_parameters_count=1
 source jb/project/tools/common/scripts/common.sh

-JCEF_PATH=${JCEF_PATH:=./jcef_linux_aarch64}
+JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}

-function do_configure {
-  sh configure \
-    $WITH_DEBUG_LEVEL \
-    --with-vendor-name="$VENDOR_NAME" \
-    --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-    --with-jvm-features=shenandoahgc \
-    --with-version-pre= \
-    --with-version-build="$JDK_BUILD_NUMBER" \
-    --with-version-opt=b"$build_number" \
-    --with-boot-jdk="$BOOT_JDK" \
-    --enable-cds=yes \
-    $STATIC_CONF_ARGS \
-    $REPRODUCIBLE_BUILD_OPTS \
-    $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
-    || do_exit $?
-}
+sh configure \
+  --with-debug-level=release \
+  --with-vendor-name="${VENDOR_NAME}" \
+  --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
+  --with-jvm-features=shenandoahgc \
+  --with-version-pre= \
+  --with-version-build="${JDK_BUILD_NUMBER}" \
+  --with-version-opt=b${build_number} \
+  --with-boot-jdk=${BOOT_JDK} \
+  --enable-cds=yes \
+  $REPRODUCIBLE_BUILD_OPTS \
+  || exit $?
+make clean CONF=linux-aarch64-server-release || exit $?
+make images CONF=linux-aarch64-server-release test-image || exit $?

-function is_musl {
-  libc=$(ldd /bin/ls | grep 'musl' | head -1 | cut -d ' ' -f1)
-  if [ -z $libc ]; then
-    # This is not Musl, return 1 == false
-    return 1
-  fi
-  return 0
-}
-
-function create_image_bundle {
-  __bundle_name=$1
-  __arch_name=$2
-  __modules_path=$3
-  __modules=$4
-
-  libc_type_suffix=''
-  fastdebug_infix=''
-
-  if is_musl; then libc_type_suffix='musl-' ; fi
-
-  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}aarch64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}aarch64-${fastdebug_infix:-}b${build_number}
-
-
-  echo Running jlink....
-  [ -d "$IMAGES_DIR"/"$__root_dir" ] && rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
-  $JSDK/bin/jlink \
-    --module-path "$__modules_path" --no-man-pages --compress=2 \
-    --add-modules "$__modules" --output "$IMAGES_DIR"/"$__root_dir"
-
-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> "$IMAGES_DIR"/"$__root_dir"/release
-  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__root_dir"/release > release
-    mv release "$IMAGES_DIR"/"$__root_dir"/release
-    cp $IMAGES_DIR/jdk/lib/src.zip "$IMAGES_DIR"/"$__root_dir"/lib
-    copy_jmods "$__modules" "$__modules_path" "$IMAGES_DIR"/"$__root_dir"/jmods
-    zip_native_debug_symbols $IMAGES_DIR/jdk "${JBR}_diz"
-  fi
-
-  # jmod does not preserve file permissions (JDK-8173610)
-  [ -f "$IMAGES_DIR"/"$__root_dir"/lib/jcef_helper ] && chmod a+x "$IMAGES_DIR"/"$__root_dir"/lib/jcef_helper
-
-  echo Creating "$JBR".tar.gz ...
-
-  (cd "$IMAGES_DIR" &&
-    find "$__root_dir" -print0 | LC_ALL=C sort -z | \
-    tar $REPRODUCIBLE_TAR_OPTS \
-      --no-recursion --null -T - -cf "$JBR".tar) || do_exit $?
-  mv "$IMAGES_DIR"/"$JBR".tar ./"$JBR".tar
-  [ -f "$JBR".tar.gz ] && rm "$JBR.tar.gz"
-  touch -c -d "@$SOURCE_DATE_EPOCH" "$JBR".tar
-  gzip "$JBR".tar || do_exit $?
-  rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=linux-aarch64-server-release
-
-case "$bundle_type" in
-  "jcef")
-    do_reset_changes=1
-    do_maketest=1
-    ;;
-  "nomod" | "")
-    bundle_type=""
-    ;;
-  "fd")
-    do_reset_changes=1
-    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
-    RELEASE_NAME=linux-aarch64-server-fastdebug
-    ;;
-esac
-
-if [ -z "${INC_BUILD:-}" ]; then
-  do_configure || do_exit $?
-  make clean CONF=$RELEASE_NAME || do_exit $?
-fi
-make images CONF=$RELEASE_NAME || do_exit $?
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk
-JSDK_MODS_DIR=$IMAGES_DIR/jmods
+JBSDK=${JBRSDK_BASE_NAME}-linux-aarch64-b${build_number}
+BASE_DIR=build/linux-aarch64-server-release/images
+JSDK=${BASE_DIR}/jdk
 JBRSDK_BUNDLE=jbrsdk

 echo Fixing permissions
 chmod -R a+r $JSDK

-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
-  git apply -p0 < jb/project/tools/patches/add_jcef_module_aarch64.patch || do_exit $?
-  update_jsdk_mods $JSDK $JCEF_PATH/jmods $JSDK/jmods $JSDK_MODS_DIR || do_exit $?
-  cp $JCEF_PATH/jmods/* $JSDK_MODS_DIR # $JSDK/jmods is not changed
+rm -rf $BASE_DIR/$JBRSDK_BUNDLE
+cp -r $JSDK $BASE_DIR/$JBRSDK_BUNDLE || exit $?

-  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
-fi
+echo Creating $JBSDK.tar.gz ...
+sed 's/JBR/JBRSDK/g' ${BASE_DIR}/${JBRSDK_BUNDLE}/release > release
+mv release ${BASE_DIR}/${JBRSDK_BUNDLE}/release

-# create runtime image bundle
-modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
-create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?
+# NB: --sort=name requires tar1.28
+tar $REPRODUCIBLE_TAR_OPTS --sort=name -pcf $JBSDK.tar \
+  --exclude=*.debuginfo --exclude=demo --exclude=sample --exclude=man \
+  -C $BASE_DIR ${JBRSDK_BUNDLE} || exit $?
+touch -c -d @$SOURCE_DATE_EPOCH $JBRSDK.tar
+gzip $JBSDK.tar || exit $?

-# create sdk image bundle
-modules=$(cat $JSDK/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\n//g) || do_exit $?
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
-  modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
-fi
-create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" $JBRSDK_BUNDLE $JSDK_MODS_DIR "$modules" || do_exit $?
+JBR_BUNDLE=jbr
+JBR_BASE_NAME=jbr-$JBSDK_VERSION
+rm -rf $BASE_DIR/$JBR_BUNDLE

-if [ $do_maketest -eq 1 ]; then
-    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-linux-${libc_type_suffix}test-aarch64-b${build_number}
-    echo Creating "$JBRSDK_TEST" ...
-    [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
-    make test-image CONF=$RELEASE_NAME || do_exit $?
-    tar -pcf "$JBRSDK_TEST".tar -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
-    [ -f "$JBRSDK_TEST.tar.gz" ] && rm "$JBRSDK_TEST.tar.gz"
-    gzip "$JBRSDK_TEST".tar || do_exit $?
-fi
+JBR=$JBR_BASE_NAME-linux-aarch64-b$build_number
+grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.aarch64
+echo Running jlink....
+${JSDK}/bin/jlink \
+  --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
+  --add-modules $(xargs < modules.list.aarch64 | sed s/" "//g | sed s/',$'//g) \
+  --output ${BASE_DIR}/${JBR_BUNDLE} || exit $?

-do_exit 0
+echo Modifying release info ...
+grep -v \"^JAVA_VERSION\" ${JSDK}/release | grep -v \"^MODULES\" >> ${BASE_DIR}/${JBR_BUNDLE}/release
+
+echo Creating $JBR.tar.gz ...
+tar $REPRODUCIBLE_TAR_OPTS --sort=name -pcf $JBR.tar -C $BASE_DIR ${JBR_BUNDLE} || exit $?
+touch -c -d @$SOURCE_DATE_EPOCH $JBR.tar
+gzip $JBR.tar || exit $?
+
+JBRSDK_TEST=$JBRSDK_BASE_NAME-linux-test-aarch64-b$build_number
+echo Creating $JBRSDK_TEST.tar.gz ...
+tar -pcf $JBRSDK_TEST.tar -C $BASE_DIR --exclude='test/jdk/demos' test || exit $?
+gzip $JBRSDK_TEST.tar || exit $?
--- a/jb/project/tools/linux/scripts/mkimages_x64.sh
+++ b/jb/project/tools/linux/scripts/mkimages_x64.sh
@@ -1,25 +1,27 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies major version of OpenJDK e.g. 11_0_6 (instead of dots '.' underbars "_" are used)
+#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        <empty> or nomod - the release bundles without any additional modules (jcef)
+#                        jcef - the release bundles with jcef
+#                        fd - the fastdebug bundles which also include the jcef module
 #
-# This script makes test-image along with JDK images when bundle_type is set to "jcef".
-# If the character 't' is added at the end of bundle_type then it also makes test-image along with JDK images.
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
 #
 # Environment variables:
-#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument
-#               to configure
-#               By default JDK_BUILD_NUMBER is set zero
 #   JCEF_PATH - specifies the path to the directory with JCEF binaries.
 #               By default JCEF binaries should be located in ./jcef_linux_x64

+min_parameters_count=2
 source jb/project/tools/common/scripts/common.sh

 JCEF_PATH=${JCEF_PATH:=./jcef_linux_x64}
@@ -35,65 +37,46 @@ function do_configure {
    --with-version-opt=b"$build_number" \
    --with-boot-jdk="$BOOT_JDK" \
    --enable-cds=yes \
-    $STATIC_CONF_ARGS \
    $REPRODUCIBLE_BUILD_OPTS \
-    $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
    || do_exit $?
 }

-function is_musl {
-  libc=$(ldd /bin/ls | grep 'musl' | head -1 | cut -d ' ' -f1)
-  if [ -z $libc ]; then
-    # This is not Musl, return 1 == false
-    return 1
-  fi
-  return 0
-}
-
 function create_image_bundle {
  __bundle_name=$1
  __arch_name=$2
  __modules_path=$3
  __modules=$4

-  libc_type_suffix=''
-  fastdebug_infix=''
-
-  if is_musl; then libc_type_suffix='musl-' ; fi
-
  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x64-${fastdebug_infix:-}b${build_number}
+  JBR=${__bundle_name}-${JBSDK_VERSION}-linux-x64-${fastdebug_infix}b${build_number}

  echo Running jlink....
-  [ -d "$IMAGES_DIR"/"$__root_dir" ] && rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
+  [ -d "$IMAGES_DIR"/"$__arch_name" ] && rm -rf "${IMAGES_DIR:?}"/"$__arch_name"
  $JSDK/bin/jlink \
    --module-path "$__modules_path" --no-man-pages --compress=2 \
-    --add-modules "$__modules" --output "$IMAGES_DIR"/"$__root_dir"
+    --add-modules "$__modules" --output "$IMAGES_DIR"/"$__arch_name"

-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> "$IMAGES_DIR"/"$__root_dir"/release
+  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> "$IMAGES_DIR"/"$__arch_name"/release
  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__root_dir"/release > release
-    mv release "$IMAGES_DIR"/"$__root_dir"/release
-    cp $IMAGES_DIR/jdk/lib/src.zip "$IMAGES_DIR"/"$__root_dir"/lib
-    copy_jmods "$__modules" "$__modules_path" "$IMAGES_DIR"/"$__root_dir"/jmods
-    zip_native_debug_symbols $IMAGES_DIR/jdk "${JBR}_diz"
+    sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__arch_name"/release > release
+    mv release "$IMAGES_DIR"/"$__arch_name"/release
+    copy_jmods "$__modules" "$__modules_path" "$IMAGES_DIR"/"$__arch_name"/jmods
  fi

  # jmod does not preserve file permissions (JDK-8173610)
-  [ -f "$IMAGES_DIR"/"$__root_dir"/lib/jcef_helper ] && chmod a+x "$IMAGES_DIR"/"$__root_dir"/lib/jcef_helper
+  [ -f "$IMAGES_DIR"/"$__arch_name"/lib/jcef_helper ] && chmod a+x "$IMAGES_DIR"/"$__arch_name"/lib/jcef_helper

  echo Creating "$JBR".tar.gz ...

  (cd "$IMAGES_DIR" &&
-    find "$__root_dir" -print0 | LC_ALL=C sort -z | \
+    find "$__arch_name" -print0 | LC_ALL=C sort -z | \
    tar $REPRODUCIBLE_TAR_OPTS \
      --no-recursion --null -T - -cf "$JBR".tar) || do_exit $?
  mv "$IMAGES_DIR"/"$JBR".tar ./"$JBR".tar
  [ -f "$JBR".tar.gz ] && rm "$JBR.tar.gz"
  touch -c -d "@$SOURCE_DATE_EPOCH" "$JBR".tar
  gzip "$JBR".tar || do_exit $?
-  #rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
+  rm -rf "${IMAGES_DIR:?}"/"$__arch_name"
 }

 WITH_DEBUG_LEVEL="--with-debug-level=release"
@@ -101,20 +84,25 @@ RELEASE_NAME=linux-x86_64-server-release

 case "$bundle_type" in
  "jcef")
-    do_reset_changes=1
-    do_maketest=1
+    do_reset_changes=0
+    ;;
+  "dcevm")
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=0
+    do_reset_changes=0
    ;;
  "nomod" | "")
    bundle_type=""
    ;;
  "fd")
-    do_reset_changes=1
+    do_reset_changes=0
    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
    RELEASE_NAME=linux-x86_64-server-fastdebug
    ;;
 esac

-if [ -z "${INC_BUILD:-}" ]; then
+if [ -z "$INC_BUILD" ]; then
  do_configure || do_exit $?
  make clean CONF=$RELEASE_NAME || do_exit $?
 fi
@@ -128,31 +116,29 @@ JBRSDK_BUNDLE=jbrsdk
 echo Fixing permissions
 chmod -R a+r $JSDK

-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
  git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
  update_jsdk_mods $JSDK $JCEF_PATH/jmods $JSDK/jmods $JSDK_MODS_DIR || do_exit $?
  cp $JCEF_PATH/jmods/* $JSDK_MODS_DIR # $JSDK/jmods is not changed

  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
+  [ "$bundle_type" != "fd" ] && jbrsdk_name_postfix="_${bundle_type}"
 fi

 # create runtime image bundle
-modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
+modules=$(xargs < modules.list | sed s/" "//g) || do_exit $?
 create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?

 # create sdk image bundle
 modules=$(cat $JSDK/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\n//g) || do_exit $?
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
  modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
 fi
 create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" $JBRSDK_BUNDLE $JSDK_MODS_DIR "$modules" || do_exit $?

-if [ $do_maketest -eq 1 ]; then
-    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-linux-${libc_type_suffix}test-x64-b${build_number}
+if [ -z "$bundle_type" ]; then
+    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-linux-test-x64-b${build_number}
    echo Creating "$JBRSDK_TEST" ...
-    [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
    make test-image CONF=$RELEASE_NAME || do_exit $?
    tar -pcf "$JBRSDK_TEST".tar -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
    [ -f "$JBRSDK_TEST.tar.gz" ] && rm "$JBRSDK_TEST.tar.gz"
--- a/jb/project/tools/linux/scripts/mkimages_x86.sh
+++ b/jb/project/tools/linux/scripts/mkimages_x86.sh
@@ -1,143 +1,80 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
+#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
 #
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
+#
+
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+
+JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')

 source jb/project/tools/common/scripts/common.sh

-function do_configure {
-  linux32 bash configure \
-    $WITH_DEBUG_LEVEL \
-    --with-vendor-name="$VENDOR_NAME" \
-    --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-    --with-jvm-features=shenandoahgc \
-    --with-version-pre= \
-    --with-version-build="$JDK_BUILD_NUMBER" \
-    --with-version-opt=b"$build_number" \
-    --with-boot-jdk="$BOOT_JDK" \
-    $STATIC_CONF_ARGS \
-    --enable-cds=yes \
-    $REPRODUCIBLE_BUILD_OPTS \
-    $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
-    || do_exit $?
-}
+JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}

-function is_musl {
-  libc=$(ldd /bin/ls | grep 'musl' | head -1 | cut -d ' ' -f1)
-  if [ -z $libc ]; then
-    # This is not Musl, return 1 == false
-    return 1
-  fi
-  return 0
-}
+[ -z "$bundle_type" ] && (git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch || exit $?)

-function create_image_bundle {
-  __bundle_name=$1
-  __arch_name=$2
-  __modules_path=$3
-  __modules=$4
+linux32 bash configure \
+  --with-debug-level=release \
+  --with-vendor-name="${VENDOR_NAME}" \
+  --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
+  --with-version-pre= \
+  --with-version-build=$JDK_BUILD_NUMBER \
+  --with-version-opt=b${build_number} \
+  --with-boot-jdk=${BOOT_JDK} \
+  --enable-cds=yes || exit $?
+make clean CONF=linux-x86-server-release || exit $?
+make images CONF=linux-x86-server-release test-image || exit $?

-  libc_type_suffix=''
-  fastdebug_infix=''
-
-  if is_musl; then libc_type_suffix='musl-' ; fi
-
-  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x86-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x86-${fastdebug_infix:-}b${build_number}
-
-  echo Running jlink....
-  [ -d "$IMAGES_DIR"/"$__root_dir" ] && rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
-  $JSDK/bin/jlink \
-    --module-path "$__modules_path" --no-man-pages --compress=2 \
-    --add-modules "$__modules" --output "$IMAGES_DIR"/"$__root_dir"
-
-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> "$IMAGES_DIR"/"$__root_dir"/release
-  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__root_dir"/release > release
-    mv release "$IMAGES_DIR"/"$__root_dir"/release
-    cp $IMAGES_DIR/jdk/lib/src.zip "$IMAGES_DIR"/"$__root_dir"/lib
-    copy_jmods "$__modules" "$__modules_path" "$IMAGES_DIR"/"$__root_dir"/jmods
-    zip_native_debug_symbols $IMAGES_DIR/jdk "${JBR}_diz"
-  fi
-
-  # jmod does not preserve file permissions (JDK-8173610)
-  [ -f "$IMAGES_DIR"/"$__root_dir"/lib/jcef_helper ] && chmod a+x "$IMAGES_DIR"/"$__root_dir"/lib/jcef_helper
-
-  echo Creating "$JBR".tar.gz ...
-
-  (cd "$IMAGES_DIR" &&
-    find "$__root_dir" -print0 | LC_ALL=C sort -z | \
-    tar $REPRODUCIBLE_TAR_OPTS \
-      --no-recursion --null -T - -cf "$JBR".tar) || do_exit $?
-  mv "$IMAGES_DIR"/"$JBR".tar ./"$JBR".tar
-  [ -f "$JBR".tar.gz ] && rm "$JBR.tar.gz"
-  touch -c -d "@$SOURCE_DATE_EPOCH" "$JBR".tar
-  gzip "$JBR".tar || do_exit $?
-  rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=linux-x86-server-release
-
-case "$bundle_type" in
-  "jcef")
-    echo "not implemented" && do_exit 1
-    ;;
-  "nomod" | "")
-    bundle_type=""
-    ;;
-  "fd")
-    do_reset_changes=1
-    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
-    RELEASE_NAME=linux-x86-server-fastdebug
-    ;;
-esac
-
-if [ -z "${INC_BUILD:-}" ]; then
-  do_configure || do_exit $?
-  make clean CONF=$RELEASE_NAME || do_exit $?
-fi
-make images CONF=$RELEASE_NAME || do_exit $?
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk
-JSDK_MODS_DIR=$IMAGES_DIR/jmods
+JBSDK=${JBRSDK_BASE_NAME}-linux-x86-b${build_number}
+BASE_DIR=build/linux-x86-server-release/images
+JSDK=${BASE_DIR}/jdk
 JBRSDK_BUNDLE=jbrsdk

 echo Fixing permissions
 chmod -R a+r $JSDK

-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
-  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
-fi
+rm -rf $BASE_DIR/$JBRSDK_BUNDLE
+cp -r $JSDK $BASE_DIR/$JBRSDK_BUNDLE || exit $?

-# create runtime image bundle
-modules=$(grep -v "jdk.internal.vm" jb/project/tools/common/modules.list | xargs | sed s/" "//g) || do_exit $?
-create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?
+echo Creating $JBSDK.tar.gz ...
+sed 's/JBR/JBRSDK/g' ${BASE_DIR}/${JBRSDK_BUNDLE}/release > release
+mv release ${BASE_DIR}/${JBRSDK_BUNDLE}/release

-# create sdk image bundle
-modules=$(cat $JSDK/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\n//g) || do_exit $?
-create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" $JBRSDK_BUNDLE $JSDK_MODS_DIR "$modules" || do_exit $?
+tar -pcf $JBSDK.tar --exclude=*.debuginfo --exclude=demo --exclude=sample --exclude=man -C $BASE_DIR ${JBRSDK_BUNDLE} || exit $?
+gzip $JBSDK.tar || exit $?

-if [ $do_maketest -eq 1 ]; then
-    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-linux-${libc_type_suffix}test-x86-b${build_number}
-    echo Creating "$JBRSDK_TEST" ...
-    [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
-    make test-image CONF=$RELEASE_NAME || do_exit $?
-    tar -pcf "$JBRSDK_TEST".tar -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
-    [ -f "$JBRSDK_TEST.tar.gz" ] && rm "$JBRSDK_TEST.tar.gz"
-    gzip "$JBRSDK_TEST".tar || do_exit $?
-fi
+JBR_BUNDLE=jbr
+JBR_BASE_NAME=jbr-$JBSDK_VERSION
+rm -rf $BASE_DIR/$JBR_BUNDLE

-do_exit 0
+JBR=$JBR_BASE_NAME-linux-x86-b$build_number
+grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
+echo Running jlink....
+${JSDK}/bin/jlink \
+  --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
+  --add-modules $(xargs < modules.list.x86 | sed s/" "//g | sed s/,$//g) --output ${BASE_DIR}/${JBR_BUNDLE} || exit $?
+
+echo Modifying release info ...
+grep -v \"^JAVA_VERSION\" ${JSDK}/release | grep -v \"^MODULES\" >> ${BASE_DIR}/${JBR_BUNDLE}/release
+
+echo Creating $JBR.tar.gz ...
+tar -pcf $JBR.tar -C $BASE_DIR $JBR_BUNDLE || exit $?
+gzip $JBR.tar || exit $?
+
+JBRSDK_TEST=$JBRSDK_BASE_NAME-linux-test-x86-b$build_number
+echo Creating $JBRSDK_TEST.tar.gz ...
+tar -pcf $JBRSDK_TEST.tar -C $BASE_DIR --exclude='test/jdk/demos' --exclude='test/hotspot/gtest' test || exit $?
+gzip $JBRSDK_TEST.tar || exit $?
--- a/jb/project/tools/mac/scripts/mkimages.sh
+++ b/jb/project/tools/mac/scripts/mkimages.sh
@@ -1,31 +1,32 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies major version of OpenJDK e.g. 11_0_6 (instead of dots '.' underbars "_" are used)
+#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        <empty> or nomod - the release bundles without any additional modules (jcef)
+#                        jcef - the release bundles with jcef
+#                        fd - the fastdebug bundles which also include the jcef module
 #
-# This script makes test-image along with JDK images when bundle_type is set to "jcef".
-# If the character 't' is added at the end of bundle_type then it also makes test-image along with JDK images.
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
 #
 # Environment variables:
-#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument
-#               to configure
-#               By default JDK_BUILD_NUMBER is set zero
 #   JCEF_PATH - specifies the path to the directory with JCEF binaries.
 #               By default JCEF binaries should be located in ./jcef_mac
-#   MACOSX_VERSION_MAX - specifies value for the --with-macosx-version-max parameter. By default it is 10.12.00 for x64
-#               and 11.00.00 for aarch64

+min_parameters_count=3
 source jb/project/tools/common/scripts/common.sh

 JCEF_PATH=${JCEF_PATH:=./jcef_mac}
-BOOT_JDK=${BOOT_JDK:=$(/usr/libexec/java_home -v 16)}
+architecture=${architecture:=x64}
+BOOT_JDK=${BOOT_JDK:=$(/usr/libexec/java_home -v 17)}

 function do_configure {
  if [[ "${architecture}" == *aarch64* ]]; then
@@ -40,15 +41,12 @@ function do_configure {
      --with-version-build="${JDK_BUILD_NUMBER}" \
      --with-version-opt=b"${build_number}" \
      --with-boot-jdk="$BOOT_JDK" \
-      --with-macosx-version-max="${MACOSX_VERSION_MAX:="11.00.00"}" \
      --disable-hotspot-gtest --disable-javac-server --disable-full-docs --disable-manpages \
      --enable-cds=no \
      --with-extra-cflags="-F$(pwd)/Frameworks" \
      --with-extra-cxxflags="-F$(pwd)/Frameworks" \
      --with-extra-ldflags="-F$(pwd)/Frameworks" \
-      $STATIC_CONF_ARGS \
      $REPRODUCIBLE_BUILD_OPTS \
-      $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
      || do_exit $?
  else
    sh configure \
@@ -62,11 +60,8 @@ function do_configure {
      --with-version-build="$JDK_BUILD_NUMBER" \
      --with-version-opt=b"$build_number" \
      --with-boot-jdk="$BOOT_JDK" \
-      --with-macosx-version-max="${MACOSX_VERSION_MAX:="10.12.00"}" \
      --enable-cds=yes \
-      $STATIC_CONF_ARGS \
      $REPRODUCIBLE_BUILD_OPTS \
-      $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
      || do_exit $?
  fi
 }
@@ -77,16 +72,13 @@ function create_image_bundle {
  __modules_path=$3
  __modules=$4

-  fastdebug_infix=''
-
  tmp=.bundle.$$.tmp
  mkdir "$tmp" || do_exit $?

  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-osx-${architecture}-${fastdebug_infix:-}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-osx-${architecture}-${fastdebug_infix:-}b${build_number}
+  JBR=${__bundle_name}-${JBSDK_VERSION}-osx-${architecture}-${fastdebug_infix}b${build_number}

-  JRE_CONTENTS=$tmp/$__root_dir/Contents
+  JRE_CONTENTS=$tmp/$__arch_name/Contents
  mkdir -p "$JRE_CONTENTS" || do_exit $?

  echo Running jlink...
@@ -98,9 +90,7 @@ function create_image_bundle {
  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
    sed 's/JBR/JBRSDK/g' $JRE_CONTENTS/Home/release > release
    mv release $JRE_CONTENTS/Home/release
-    cp $IMAGES_DIR/jdk-bundle/jdk-$JBSDK_VERSION.jdk/Contents/Home/lib/src.zip $JRE_CONTENTS/Home/lib
    copy_jmods "$__modules" "$__modules_path" "$JRE_CONTENTS"/Home/jmods
-    zip_native_debug_symbols $IMAGES_DIR/jdk-bundle/jdk-$JBSDK_VERSION.jdk "${JBR}_diz"
  fi

  cp -R "$JSDK"/../MacOS "$JRE_CONTENTS"
@@ -110,10 +100,10 @@ function create_image_bundle {

  echo Creating "$JBR".tar.gz ...
  # Normalize timestamp
-  find "$tmp"/"$__root_dir" -print0 | xargs -0 touch -c -h -t "$TOUCH_TIME"
+  find "$tmp"/"$__arch_name" -print0 | xargs -0 touch -c -h -t "$TOUCH_TIME"

  (cd "$tmp" &&
-      find "$__root_dir" -print0 | LC_ALL=C sort -z | \
+      find "$__arch_name" -print0 | LC_ALL=C sort -z | \
      COPYFILE_DISABLE=1 tar $REPRODUCIBLE_TAR_OPTS  --no-recursion --null -T - \
                             -czf "$JBR".tar.gz --exclude='*.dSYM' --exclude='man') || do_exit $?
  mv "$tmp"/"$JBR".tar.gz  "$JBR".tar.gz
@@ -129,21 +119,26 @@ RELEASE_NAME=macosx-${CONF_ARCHITECTURE}-server-release

 case "$bundle_type" in
  "jcef")
-    do_reset_changes=1
-    do_maketest=1
+    do_reset_changes=0
+    ;;
+  "dcevm")
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=0
+    do_reset_changes=0
    ;;
  "nomod" | "")
    bundle_type=""
    ;;
  "fd")
-    do_reset_changes=1
+    do_reset_changes=0
    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
    RELEASE_NAME=macosx-${CONF_ARCHITECTURE}-server-fastdebug
    JBSDK=macosx-${architecture}-server-release
    ;;
 esac

-if [ -z "${INC_BUILD:-}" ]; then
+if [ -z "$INC_BUILD" ]; then
  do_configure || do_exit $?
  make clean CONF=$RELEASE_NAME || do_exit $?
 fi
@@ -151,35 +146,35 @@ make images CONF=$RELEASE_NAME || do_exit $?

 IMAGES_DIR=build/$RELEASE_NAME/images

-JSDK=$IMAGES_DIR/jdk-bundle/jdk-$JBSDK_VERSION.jdk/Contents/Home
+major_version=$(echo "$JBSDK_VERSION_WITH_DOTS" | awk -F "." '{print $1}')
+minor_version=$(echo "$JBSDK_VERSION_WITH_DOTS" | awk -F "." '{print $3}')
+[ -z "$minor_version"  -o "$minor_version" = "0" ] && version_dir=$major_version || version_dir=$JBSDK_VERSION_WITH_DOTS
+JSDK=$IMAGES_DIR/jdk-bundle/jdk-$version_dir.jdk/Contents/Home
 JSDK_MODS_DIR=$IMAGES_DIR/jmods
 JBRSDK_BUNDLE=jbrsdk

-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
  git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
  update_jsdk_mods "$JSDK" "$JCEF_PATH"/jmods "$JSDK"/jmods "$JSDK_MODS_DIR" || do_exit $?
  cp $JCEF_PATH/jmods/* $JSDK_MODS_DIR # $JSDK/jmods is not changed

  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
 fi

 # create runtime image bundle
-modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
+modules=$(xargs < modules.list | sed s/" "//g) || do_exit $?
 create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?

 # create sdk image bundle
 modules=$(cat "$JSDK"/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\n//g) || do_exit $?
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
  modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
 fi
 create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" "$JBRSDK_BUNDLE" "$JSDK_MODS_DIR" "$modules" || do_exit $?

-if [ $do_maketest -eq 1 ]; then
+if [ -z "$bundle_type" ]; then
    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-osx-test-${architecture}-b${build_number}
    echo Creating "$JBRSDK_TEST" ...
-    [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
    make test-image CONF=$RELEASE_NAME || do_exit $?
    [ -f "$JBRSDK_TEST.tar.gz" ] && rm "$JBRSDK_TEST.tar.gz"
    COPYFILE_DISABLE=1 tar -pczf "$JBRSDK_TEST".tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
--- a/jb/project/tools/mac/scripts/notarize.sh
+++ b/jb/project/tools/mac/scripts/notarize.sh
@@ -1,7 +1,4 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 APP_DIRECTORY=$1
 APPL_USER=$2
--- a/jb/project/tools/mac/scripts/sign.sh
+++ b/jb/project/tools/mac/scripts/sign.sh
@@ -1,7 +1,4 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 APPLICATION_PATH=$1
 APP_NAME=$2
@@ -100,11 +97,8 @@ BUILD_NAME=$(echo $APPLICATION_PATH | awk -F"/" '{ print $2 }')

 log "Creating $APP_NAME.pkg..."
 rm -rf "$APP_NAME.pkg"
-
-mkdir -p unsigned
-pkgbuild --identifier $BUNDLE_ID --root $APPLICATION_PATH \
-    --install-location /Library/Java/JavaVirtualMachines/${BUILD_NAME} unsigned/${APP_NAME}.pkg
-productsign --timestamp --sign "$JB_INSTALLER_CERT" unsigned/${APP_NAME}.pkg ${APP_NAME}.pkg
+pkgbuild --identifier $BUNDLE_ID --sign "$JB_INSTALLER_CERT" --root $APPLICATION_PATH \
+    --install-location /Library/Java/JavaVirtualMachines/${BUILD_NAME} ${APP_NAME}.pkg

 #log "Signing whole app..."
 #codesign --timestamp \
--- a/jb/project/tools/mac/scripts/signapp.sh
+++ b/jb/project/tools/mac/scripts/signapp.sh
@@ -1,8 +1,7 @@
-#!/bin/bash
+#!/bin/bash -x

 #immediately exit script with an error if a command fails
 set -euo pipefail
-set -x

 export COPY_EXTENDED_ATTRIBUTES_DISABLE=true
 export COPYFILE_DISABLE=true
@@ -45,7 +44,8 @@ fi
 log "$INPUT_FILE extracted and removed"

 APP_NAME=$(echo ${INPUT_FILE} | awk -F".tar" '{ print $1 }')
-APPLICATION_PATH=$EXPLODED/$(ls $EXPLODED)
+APPLICATION_PATH=$(sed "s/osx-//" <<< "$EXPLODED/$APP_NAME")
+mv $EXPLODED/$BUILD_NAME $APPLICATION_PATH

 find "$APPLICATION_PATH/Contents/Home/bin" \
  -maxdepth 1 -type f -name '*.jnilib' -print0 |
--- a/jb/project/tools/patches/add_jcef_module.patch
+++ b/jb/project/tools/patches/add_jcef_module.patch
@@ -1,8 +1,8 @@
-diff --git jb/project/tools/common/modules.list jb/project/tools/common/modules.list
-index 522acb7cb43..c40e689d5de 100644
--- jb/project/tools/common/modules.list
-+++ jb/project/tools/common/modules.list
-@@ -51,4 +51,7 @@ jdk.unsupported.desktop,
+diff --git modules.list modules.list
+index 054f21d1ee0..d9a121f0273 100644
+--- modules.list
+++ modules.list
+@@ -49,4 +49,7 @@ jdk.unsupported,
 jdk.xml.dom,
 jdk.zipfs,
 jdk.hotspot.agent,
--- a/jb/project/tools/patches/add_jcef_module_aarch64.patch
+++ b/jb/project/tools/patches/add_jcef_module_aarch64.patch
@@ -1,30 +0,0 @@
-diff --git jb/project/tools/common/modules.list jb/project/tools/common/modules.list
-index 522acb7..c40e689 100644
--- jb/project/tools/common/modules.list
-+++ jb/project/tools/common/modules.list
-@@ -51,4 +51,7 @@ jdk.unsupported.desktop,
- jdk.xml.dom,
- jdk.zipfs,
- jdk.hotspot.agent,
-jdk.jcmd
-+jdk.jcmd,
-+jcef,
-+gluegen.rt,
-+jogl.all
-diff --git src/java.desktop/share/classes/module-info.java src/java.desktop/share/classes/module-info.java
-index 897647e..781d180 100644
--- src/java.desktop/share/classes/module-info.java
-+++ src/java.desktop/share/classes/module-info.java
-@@ -116,7 +116,11 @@ module java.desktop {
-     // see make/GensrcModuleInfo.gmk
-     exports sun.awt to
-         jdk.accessibility,
-        jdk.unsupported.desktop;
-+        jdk.unsupported.desktop,
-+        jcef,
-+        jogl.all;
-+
-+    exports java.awt.peer to jcef;
-
-     exports java.awt.dnd.peer to jdk.unsupported.desktop;
-     exports sun.awt.dnd to jdk.unsupported.desktop;
--- a/jb/project/tools/patches/dcevm/0001-Apply-basic-dcevm11-patch.patch
+++ b/jb/project/tools/patches/dcevm/0001-Apply-basic-dcevm11-patch.patch
--- a/jb/project/tools/patches/dcevm/0002-dcevm11-fixes.patch
+++ b/jb/project/tools/patches/dcevm/0002-dcevm11-fixes.patch
--- a/jb/project/tools/patches/dcevm/0003-Fix-class-cast-exception-on-redefinition-of-class-A-.patch
+++ b/jb/project/tools/patches/dcevm/0003-Fix-class-cast-exception-on-redefinition-of-class-A-.patch
@@ -0,0 +1,29 @@
+From 960dafbeeba190911955c208b611fecc15d66738 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Wed, 11 Mar 2020 14:19:34 +0100
+Subject: [PATCH 03/34] Fix class cast exception on redefinition of class A,
+ that is superclass of B that has anonymous class C
+
+---
+ src/hotspot/share/oops/instanceKlass.cpp | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index 994fc8a3bc8..3be3a09ef8f 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
+++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -953,7 +953,10 @@ bool InstanceKlass::link_class_impl(TRAPS) {
+ 
+     if (!is_linked()) {
+       if (!is_rewritten()) {
+-        {
+        // (DCEVM): If class A is being redefined and class B->A (B is extended from A) and B is host class of anonymous class C
+        // then second redefinition fails with cannot cast klass exception. So we currently turn off bytecode verification
+        // on redefinition.
+        if (!AllowEnhancedClassRedefinition || !newest_version()->is_redefining()) {
+           bool verify_ok = verify_code(THREAD);
+           if (!verify_ok) {
+             return false;
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0004-HotswapAgent-integration.patch
+++ b/jb/project/tools/patches/dcevm/0004-HotswapAgent-integration.patch
--- a/jb/project/tools/patches/dcevm/0005-Support-for-Lambda-class-redefinition.patch
+++ b/jb/project/tools/patches/dcevm/0005-Support-for-Lambda-class-redefinition.patch
@@ -0,0 +1,240 @@
+From 39df5f163d4a0f1fd6b92313a5570808f19d5e20 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 4 Oct 2020 21:12:12 +0200
+Subject: [PATCH 05/34] Support for Lambda class redefinition
+
+---
+ .../share/classfile/classLoaderData.cpp       |  9 +++
+ .../share/classfile/classLoaderData.hpp       |  2 +-
+ .../share/classfile/systemDictionary.cpp      | 12 +++-
+ .../share/classfile/systemDictionary.hpp      |  1 +
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 65 +++++++++++++++++--
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |  1 +
+ .../share/prims/resolvedMethodTable.cpp       |  2 +
+ src/hotspot/share/prims/unsafe.cpp            |  1 +
+ 8 files changed, 83 insertions(+), 10 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 0cd90bb8c27..4d64c6b454a 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
+++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -593,6 +593,15 @@ Dictionary* ClassLoaderData::create_dictionary() {
+   return new Dictionary(this, size, resizable);
+ }
+ 
+void ClassLoaderData::exchange_holders(ClassLoaderData* cld) {
+  oop holder_oop = _holder.peek();
+  _holder.replace(cld->_holder.peek());
+  cld->_holder.replace(holder_oop);
+  WeakHandle<vm_class_loader_data> exchange = _holder;
+  _holder = cld->_holder;
+  cld->_holder = exchange;
+}
+
+ // Tell the GC to keep this klass alive while iterating ClassLoaderDataGraph
+ oop ClassLoaderData::holder_phantom() const {
+   // A klass that was previously considered dead can be looked up in the
+diff --git a/src/hotspot/share/classfile/classLoaderData.hpp b/src/hotspot/share/classfile/classLoaderData.hpp
+index ba2393f8dd0..e2ae0a77351 100644
+--- a/src/hotspot/share/classfile/classLoaderData.hpp
+++ b/src/hotspot/share/classfile/classLoaderData.hpp
+@@ -181,7 +181,7 @@ class ClassLoaderData : public CHeapObj<mtClass> {
+   bool has_accumulated_modified_oops()   { return _accumulated_modified_oops; }
+   oop holder_no_keepalive() const;
+   oop holder_phantom() const;
+-
+  void exchange_holders(ClassLoaderData* cld);
+  private:
+   void unload();
+   bool keep_alive() const       { return _keep_alive > 0; }
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index bd0cae7cb9b..8f2b46add4d 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
+++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -1062,10 +1062,14 @@ InstanceKlass* SystemDictionary::parse_stream(Symbol* class_name,
+                                               Handle class_loader,
+                                               ClassFileStream* st,
+                                               const ClassLoadInfo& cl_info,
+                                              InstanceKlass* old_klass,
+                                               TRAPS) {
+ 
+   EventClassLoad class_load_start_event;
+   ClassLoaderData* loader_data;
+  
+  bool is_redefining = (old_klass != NULL);
+  
+   bool is_unsafe_anon_class = cl_info.unsafe_anonymous_host() != NULL;
+ 
+   // - for unsafe anonymous class: create a new CLD whith a class holder that uses
+@@ -1094,8 +1098,12 @@ InstanceKlass* SystemDictionary::parse_stream(Symbol* class_name,
+                                                       class_name,
+                                                       loader_data,
+                                                       cl_info,
+-                                                      false, // pick_newest
+                                                      is_redefining, // pick_newest
+                                                       CHECK_NULL);
+  if (is_redefining && k != NULL) {
+    k->set_redefining(true);
+    k->set_old_version(old_klass);
+  }
+ 
+   if ((cl_info.is_hidden() || is_unsafe_anon_class) && k != NULL) {
+     // Hidden classes that are not strong and unsafe anonymous classes must update
+@@ -1998,7 +2006,7 @@ void SystemDictionary::remove_from_hierarchy(InstanceKlass* k) {
+   k->remove_from_sibling_list();
+ }
+ 
+-// (DCEVM) 
+// (DCEVM)
+ void SystemDictionary::update_constraints_after_redefinition() {
+   constraints()->update_after_redefinition();
+ }
+diff --git a/src/hotspot/share/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
+index 4547449dbec..931e655d631 100644
+--- a/src/hotspot/share/classfile/systemDictionary.hpp
+++ b/src/hotspot/share/classfile/systemDictionary.hpp
+@@ -329,6 +329,7 @@ public:
+                                      Handle class_loader,
+                                      ClassFileStream* st,
+                                      const ClassLoadInfo& cl_info,
+                                     InstanceKlass* old_klass,
+                                      TRAPS);
+ 
+   // Resolve from stream (called by jni_DefineClass and JVM_DefineClass)
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 92ce6c27b8a..8b765623dcd 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -494,6 +494,8 @@ void VM_EnhancedRedefineClasses::doit() {
+     ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
+ 
+ 
+    // SystemDictionary::methods_do(fix_invoke_method);
+
+   // JSR-292 support
+   if (_any_class_has_resolved_methods) {
+     bool trace_name_printed = false;
+@@ -756,12 +758,34 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+     // load hook event.
+     state->set_class_being_redefined(the_class, _class_load_kind);
+ 
+-    InstanceKlass* k = SystemDictionary::resolve_from_stream(the_class_sym,
+-                                                the_class_loader,
+-                                                protection_domain,
+-                                                &st,
+-                                                the_class,
+-                                                THREAD);
+    InstanceKlass* k;
+
+    if (InstanceKlass::cast(the_class)->is_anonymous()) {
+      const InstanceKlass* host_class = the_class->host_klass();
+
+      // Make sure it's the real host class, not another anonymous class.
+      while (host_class != NULL && host_class->is_anonymous()) {
+        host_class = host_class->host_klass();
+      }
+
+      k = SystemDictionary::parse_stream(the_class_sym,
+                                         the_class_loader,
+                                         protection_domain,
+                                         &st,
+                                         host_class,
+                                         the_class,
+                                         NULL,
+                                         THREAD);
+      k->class_loader_data()->exchange_holders(the_class->class_loader_data());
+      the_class->class_loader_data()->inc_keep_alive();
+    } else {
+      k = SystemDictionary::resolve_from_stream(the_class_sym,
+                                                  the_class_loader,
+                                                  protection_domain,
+                                                  &st,
+                                                  the_class,
+                                                  THREAD);
+    }
+     // Clear class_being_redefined just to be sure.
+     state->clear_class_being_redefined();
+ 
+@@ -1442,6 +1466,30 @@ void VM_EnhancedRedefineClasses::MethodDataCleaner::do_klass(Klass* k) {
+   }
+ }
+ 
+void VM_EnhancedRedefineClasses::fix_invoke_method(Method* method) {
+
+  constantPoolHandle other_cp = constantPoolHandle(method->constants());
+
+  for (int i = 0; i < other_cp->length(); i++) {
+    if (other_cp->tag_at(i).is_klass()) {
+      Klass* klass = other_cp->resolved_klass_at(i);
+      if (klass->new_version() != NULL) {
+        // Constant pool entry points to redefined class -- update to the new version
+        other_cp->klass_at_put(i, klass->newest_version());
+      }
+      assert(other_cp->resolved_klass_at(i)->new_version() == NULL, "Must be new klass!");
+    }
+  }
+
+  ConstantPoolCache* cp_cache = other_cp->cache();
+  if (cp_cache != NULL) {
+    cp_cache->clear_entries();
+  }
+
+}
+
+
+
+ void VM_EnhancedRedefineClasses::update_jmethod_ids() {
+   for (int j = 0; j < _matching_methods_length; ++j) {
+     Method* old_method = _matching_old_methods[j];
+@@ -1979,7 +2027,10 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
+   // Find classes not directly redefined, but affected by a redefinition (because one of its supertypes is redefined)
+   AffectedKlassClosure closure(_affected_klasses);
+   // Updated in j10, from original SystemDictionary::classes_do
+-  ClassLoaderDataGraph::dictionary_classes_do(&closure);
+
+  ClassLoaderDataGraph::classes_do(&closure);
+  //ClassLoaderDataGraph::dictionary_classes_do(&closure);
+
+   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
+ 
+   // Sort the affected klasses such that a supertype is always on a smaller array index than its subtype.
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index 60b62c3170a..d8a11b51fe9 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -116,6 +116,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   void rollback();
+   static void mark_as_scavengable(nmethod* nm);
+   static void unpatch_bytecode(Method* method);
+  static void fix_invoke_method(Method* method);
+ 
+   // Figure out which new methods match old methods in name and signature,
+   // which methods have been added, and which are no longer present
+diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
+index 122bb8c186b..81b3aa96564 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -414,6 +414,8 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
+         InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
+         Method* newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
+ 
+        log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
+
+         assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
+         assert(newer_method != NULL, "method_with_idnum() should not be NULL");
+         assert(old_method != newer_method, "sanity check");
+diff --git a/src/hotspot/share/prims/unsafe.cpp b/src/hotspot/share/prims/unsafe.cpp
+index 72d81ec9d6c..027afa3fabd 100644
+--- a/src/hotspot/share/prims/unsafe.cpp
+++ b/src/hotspot/share/prims/unsafe.cpp
+@@ -865,6 +865,7 @@ Unsafe_DefineAnonymousClass_impl(JNIEnv *env,
+                                                 host_loader,
+                                                 &st,
+                                                 cl_info,
+                                                NULL,
+                                                 CHECK_NULL);
+   if (anonk == NULL) {
+     return NULL;
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0006-Fix-no-original-bytecode-found-error-if-method-with-.patch
+++ b/jb/project/tools/patches/dcevm/0006-Fix-no-original-bytecode-found-error-if-method-with-.patch
@@ -0,0 +1,135 @@
+From 5af1daedc86b5fec0f222cbdda3afbdf518985ea Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 23 May 2020 10:02:15 +0200
+Subject: [PATCH 06/34] Fix "no original bytecode found" error if method with
+ bkp is missing
+
+Sometimes IDE can deploy class with erroneous method, such method has
+n bytecode, but breakpoint position can still exist.
+---
+ src/hotspot/share/interpreter/bytecodes.cpp    |  2 +-
+ .../share/interpreter/interpreterRuntime.cpp   |  2 +-
+ src/hotspot/share/oops/method.cpp              |  8 ++++----
+ src/hotspot/share/oops/method.hpp              |  4 ++--
+ .../prims/jvmtiEnhancedRedefineClasses.cpp     | 18 ++++++++++--------
+ 5 files changed, 18 insertions(+), 16 deletions(-)
+
+diff --git a/src/hotspot/share/interpreter/bytecodes.cpp b/src/hotspot/share/interpreter/bytecodes.cpp
+index e377e36b88c..262ecc021b2 100644
+--- a/src/hotspot/share/interpreter/bytecodes.cpp
+++ b/src/hotspot/share/interpreter/bytecodes.cpp
+@@ -84,7 +84,7 @@ Bytecodes::Code Bytecodes::code_at(Method* method, int bci) {
+ Bytecodes::Code Bytecodes::non_breakpoint_code_at(const Method* method, address bcp) {
+   assert(method != NULL, "must have the method for breakpoint conversion");
+   assert(method->contains(bcp), "must be valid bcp in method");
+-  return method->orig_bytecode_at(method->bci_from(bcp));
+  return method->orig_bytecode_at(method->bci_from(bcp), false);
+ }
+ 
+ int Bytecodes::special_length_at(Bytecodes::Code code, address bcp, address end) {
+diff --git a/src/hotspot/share/interpreter/interpreterRuntime.cpp b/src/hotspot/share/interpreter/interpreterRuntime.cpp
+index ed3cc3eb6a2..504e59caf51 100644
+--- a/src/hotspot/share/interpreter/interpreterRuntime.cpp
+++ b/src/hotspot/share/interpreter/interpreterRuntime.cpp
+@@ -814,7 +814,7 @@ JRT_END
+ // Invokes
+ 
+ JRT_ENTRY(Bytecodes::Code, InterpreterRuntime::get_original_bytecode_at(JavaThread* thread, Method* method, address bcp))
+-  return method->orig_bytecode_at(method->bci_from(bcp));
+  return method->orig_bytecode_at(method->bci_from(bcp), false);
+ JRT_END
+ 
+ JRT_ENTRY(void, InterpreterRuntime::set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code))
+diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
+index 516f2bb8f2f..1c88511a5fc 100644
+--- a/src/hotspot/share/oops/method.cpp
+++ b/src/hotspot/share/oops/method.cpp
+@@ -1853,14 +1853,14 @@ bool CompressedLineNumberReadStream::read_pair() {
+ 
+ #if INCLUDE_JVMTI
+ 
+-Bytecodes::Code Method::orig_bytecode_at(int bci) const {
+Bytecodes::Code Method::orig_bytecode_at(int bci, bool no_fatal) const {
+   BreakpointInfo* bp = method_holder()->breakpoints();
+   for (; bp != NULL; bp = bp->next()) {
+     if (bp->match(this, bci)) {
+       return bp->orig_bytecode();
+     }
+   }
+-  {
+  if (!no_fatal) {
+     ResourceMark rm;
+     fatal("no original bytecode found in %s at bci %d", name_and_sig_as_C_string(), bci);
+   }
+@@ -2006,7 +2006,7 @@ BreakpointInfo::BreakpointInfo(Method* m, int bci) {
+   _signature_index = m->signature_index();
+   _orig_bytecode = (Bytecodes::Code) *m->bcp_from(_bci);
+   if (_orig_bytecode == Bytecodes::_breakpoint)
+-    _orig_bytecode = m->orig_bytecode_at(_bci);
+    _orig_bytecode = m->orig_bytecode_at(_bci, false);
+   _next = NULL;
+ }
+ 
+@@ -2015,7 +2015,7 @@ void BreakpointInfo::set(Method* method) {
+   {
+     Bytecodes::Code code = (Bytecodes::Code) *method->bcp_from(_bci);
+     if (code == Bytecodes::_breakpoint)
+-      code = method->orig_bytecode_at(_bci);
+      code = method->orig_bytecode_at(_bci, false);
+     assert(orig_bytecode() == code, "original bytecode must be the same");
+   }
+ #endif
+diff --git a/src/hotspot/share/oops/method.hpp b/src/hotspot/share/oops/method.hpp
+index 83ed2d9c3c1..4d4cc6dc012 100644
+--- a/src/hotspot/share/oops/method.hpp
+++ b/src/hotspot/share/oops/method.hpp
+@@ -230,7 +230,7 @@ class Method : public Metadata {
+ 
+   // JVMTI breakpoints
+ #if !INCLUDE_JVMTI
+-  Bytecodes::Code orig_bytecode_at(int bci) const {
+  Bytecodes::Code orig_bytecode_at(int bci, bool no_fatal) const {
+     ShouldNotReachHere();
+     return Bytecodes::_shouldnotreachhere;
+   }
+@@ -239,7 +239,7 @@ class Method : public Metadata {
+   };
+   u2   number_of_breakpoints() const {return 0;}
+ #else // !INCLUDE_JVMTI
+-  Bytecodes::Code orig_bytecode_at(int bci) const;
+  Bytecodes::Code orig_bytecode_at(int bci, bool no_fatal) const;
+   void set_orig_bytecode_at(int bci, Bytecodes::Code code);
+   void set_breakpoint(int bci);
+   void clear_breakpoint(int bci);
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 8b765623dcd..a859b8e1162 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -1362,14 +1362,16 @@ void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
+ 
+     if (code == Bytecodes::_breakpoint) {
+       int bci = method->bci_from(bcp);
+-      code = method->orig_bytecode_at(bci);
+-      java_code = Bytecodes::java_code(code);
+-      if (code != java_code &&
+-           (java_code == Bytecodes::_getfield ||
+-            java_code == Bytecodes::_putfield ||
+-            java_code == Bytecodes::_aload_0)) {
+-        // Let breakpoint table handling unpatch bytecode
+-        method->set_orig_bytecode_at(bci, java_code);
+      code = method->orig_bytecode_at(bci, true);
+      if (code != Bytecodes::_shouldnotreachhere) {
+        java_code = Bytecodes::java_code(code);
+        if (code != java_code &&
+             (java_code == Bytecodes::_getfield ||
+              java_code == Bytecodes::_putfield ||
+              java_code == Bytecodes::_aload_0)) {
+          // Let breakpoint table handling unpatch bytecode
+          method->set_orig_bytecode_at(bci, java_code);
+        }
+       }
+     } else {
+       java_code = Bytecodes::java_code(code);
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0007-Replace-deleted-method-with-Universe-throw_no_such_m.patch
+++ b/jb/project/tools/patches/dcevm/0007-Replace-deleted-method-with-Universe-throw_no_such_m.patch
@@ -0,0 +1,57 @@
+From 19d2274a5dff6e6b31474252b45e5e7484f0180b Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 24 May 2020 12:07:42 +0200
+Subject: [PATCH 07/34] Replace deleted method with
+ Universe::throw_no_such_method_error
+
+---
+ .../share/prims/resolvedMethodTable.cpp       | 28 +++++++++----------
+ 1 file changed, 14 insertions(+), 14 deletions(-)
+
+diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
+index 81b3aa96564..caf03ffe56d 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -404,25 +404,25 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
+ 
+       if (old_method->is_old()) {
+ 
+        InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
+        Method* newer_method;
+
+         // Method* new_method;
+         if (old_method->is_deleted()) {
+-          // FIXME:(DCEVM) - check if exception can be thrown
+-          // new_method = Universe::throw_no_such_method_error();
+-          continue;
+-        }
+-
+-        InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
+-        Method* newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
+          newer_method = Universe::throw_no_such_method_error();
+        } else {
+          newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
+ 
+-        log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
+          log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
+ 
+-        assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
+-        assert(newer_method != NULL, "method_with_idnum() should not be NULL");
+-        assert(old_method != newer_method, "sanity check");
+          assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
+          assert(newer_method != NULL, "method_with_idnum() should not be NULL");
+          assert(old_method != newer_method, "sanity check");
+ 
+-        if (_the_table->lookup(newer_method) != NULL) {
+-          // old method was already adjusted if new method exists in _the_table
+-            continue;
+          if (_the_table->lookup(newer_method) != NULL) {
+            // old method was already adjusted if new method exists in _the_table
+              continue;
+          }
+         }
+ 
+         java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, newer_method);
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0008-Support-for-G1-gc.patch
+++ b/jb/project/tools/patches/dcevm/0008-Support-for-G1-gc.patch
--- a/jb/project/tools/patches/dcevm/0009-Change-log-level-in-advanced-redefinition.patch
+++ b/jb/project/tools/patches/dcevm/0009-Change-log-level-in-advanced-redefinition.patch
@@ -0,0 +1,50 @@
+From ca47ab5a0a6ce8e2644736f323a335a957311af9 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 13 Jun 2020 18:50:59 +0200
+Subject: [PATCH 09/34] Change log level in advanced redefinition
+
+- Change log level for "Comparing different class ver.." to debug
+- Fix adjust_method_entries_dcevm logging levels and severity
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 2 +-
+ src/hotspot/share/prims/resolvedMethodTable.cpp          | 4 ++--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 6c9eb40ecf5..b09ba554e07 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -916,7 +916,7 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+  // Calculated the difference between new and old class  (field change, method change, supertype change, ...).
+ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_class) {
+   int result = Klass::NoRedefinition;
+-  log_info(redefine, class, load)("Comparing different class versions of class %s",new_class->name()->as_C_string());
+  log_debug(redefine, class, load)("Comparing different class versions of class %s",new_class->name()->as_C_string());
+ 
+   assert(new_class->old_version() != NULL, "must have old version");
+   InstanceKlass* the_class = InstanceKlass::cast(new_class->old_version());
+diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
+index caf03ffe56d..eb9fcda44f3 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -413,7 +413,7 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
+         } else {
+           newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
+ 
+-          log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
+          log_debug(redefine, class, update)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
+ 
+           assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
+           assert(newer_method != NULL, "method_with_idnum() should not be NULL");
+@@ -433,7 +433,7 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
+ 
+         ResourceMark rm;
+         if (!(*trace_name_printed)) {
+-          log_info(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
+          log_debug(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
+            *trace_name_printed = true;
+         }
+         log_debug(redefine, class, update, constantpool)
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0010-AllowEnhancedClassRedefinition-is-false-disabled-by-.patch
+++ b/jb/project/tools/patches/dcevm/0010-AllowEnhancedClassRedefinition-is-false-disabled-by-.patch
@@ -0,0 +1,26 @@
+From 7e236beee0375656d1955fc1168143c1639fb7f1 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Tue, 6 Oct 2020 22:15:31 +0200
+Subject: [PATCH 10/34] AllowEnhancedClassRedefinition is false (disabled) by
+ default
+
+---
+ src/hotspot/share/runtime/globals.hpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/runtime/globals.hpp b/src/hotspot/share/runtime/globals.hpp
+index 5b367704800..2710c6ea0e5 100644
+--- a/src/hotspot/share/runtime/globals.hpp
+++ b/src/hotspot/share/runtime/globals.hpp
+@@ -2466,7 +2466,7 @@ const size_t minimumSymbolTableSize = 1024;
+   diagnostic(bool, DeoptimizeNMethodBarriersALot, false,                    \
+                 "Make nmethod barriers deoptimise a lot.")                  \
+                                                                             \
+-  product(bool, AllowEnhancedClassRedefinition, true,                       \
+  product(bool, AllowEnhancedClassRedefinition, false,                      \
+              "Allow enhanced class redefinition beyond swapping method "    \
+              "bodies")                                                      \
+                                                                             \
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0011-add-jvmtiEnhancedRedefineClasses.-to-CMakeLists.txt.patch
+++ b/jb/project/tools/patches/dcevm/0011-add-jvmtiEnhancedRedefineClasses.-to-CMakeLists.txt.patch
--- a/jb/project/tools/patches/dcevm/0012-Set-HOTSPOT_VM_DISTRO-Dynamic-Code-Evolution.patch
+++ b/jb/project/tools/patches/dcevm/0012-Set-HOTSPOT_VM_DISTRO-Dynamic-Code-Evolution.patch
@@ -0,0 +1,25 @@
+From d56e73885111b386771f564ec6beb305338993df Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Mon, 19 Oct 2020 20:00:04 +0200
+Subject: [PATCH 12/34] Set HOTSPOT_VM_DISTRO=Dynamic Code Evolution
+
+---
+ make/autoconf/version-numbers | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/make/autoconf/version-numbers b/make/autoconf/version-numbers
+index aabdc5bed20..df8025a2e84 100644
+--- a/make/autoconf/version-numbers
+++ b/make/autoconf/version-numbers
+@@ -45,7 +45,7 @@ PRODUCT_NAME=OpenJDK
+ PRODUCT_SUFFIX="Runtime Environment"
+ JDK_RC_PLATFORM_NAME=Platform
+ COMPANY_NAME=N/A
+-HOTSPOT_VM_DISTRO="OpenJDK"
+HOTSPOT_VM_DISTRO="Dynamic Code Evolution"
+ VENDOR_URL=https://openjdk.java.net/
+ VENDOR_URL_BUG=https://bugreport.java.com/bugreport/
+ VENDOR_URL_VM_BUG=https://bugreport.java.com/bugreport/crash.jsp
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0013-Fix-G1-nmethod-registration.patch
+++ b/jb/project/tools/patches/dcevm/0013-Fix-G1-nmethod-registration.patch
@@ -0,0 +1,71 @@
+From 7ebad43ed45805b0a3736c510f708ff17697ba7e Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 11 Oct 2020 10:43:28 +0200
+Subject: [PATCH 13/34] Fix G1 nmethod registration
+
+---
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 19 ++++++++++++++++---
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |  3 ++-
+ 2 files changed, 18 insertions(+), 4 deletions(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index b09ba554e07..718426f2819 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -216,7 +216,14 @@ void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
+   }
+ }
+ 
+-void VM_EnhancedRedefineClasses::mark_as_scavengable_g1(nmethod* nm) {
+void VM_EnhancedRedefineClasses::unregister_nmethod_g1(nmethod* nm) {
+  // It should work not only for G1 but also for another GCs, but this way is safer now
+  if (!nm->is_zombie() && !nm->is_unloaded()) {
+    Universe::heap()->unregister_nmethod(nm);
+  }
+}
+
+void VM_EnhancedRedefineClasses::register_nmethod_g1(nmethod* nm) {
+   // It should work not only for G1 but also for another GCs, but this way is safer now
+   if (!nm->is_zombie() && !nm->is_unloaded()) {
+     Universe::heap()->register_nmethod(nm);
+@@ -521,8 +528,9 @@ void VM_EnhancedRedefineClasses::doit() {
+     // For now, mark all nmethod's as scavengable that are not scavengable already
+     if (ScavengeRootsInCode) {
+       if (UseG1GC) {
+-        // this should work also for other GCs
+-        CodeCache::nmethods_do(mark_as_scavengable_g1);
+        // G1 holds references to nmethods in regions based on oops values. Since oops in nmethod can be changed in ChangePointers* closures
+        // we unregister nmethods from G1 heap, then closures are processed (oops are changed) and finally we register nmethod to G1 again
+        CodeCache::nmethods_do(unregister_nmethod_g1);
+       } else {
+         CodeCache::nmethods_do(mark_as_scavengable);
+       }
+@@ -545,6 +553,11 @@ void VM_EnhancedRedefineClasses::doit() {
+ 
+     Universe::root_oops_do(&oopClosureNoBarrier);
+ 
+    if (UseG1GC) {
+      // this should work also for other GCs
+      CodeCache::nmethods_do(register_nmethod_g1);
+    }
+
+   }
+   log_trace(redefine, class, obsolete, metadata)("After updating instances");
+ 
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index 9755944d70b..4c0412d343d 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -116,7 +116,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+ 
+   void rollback();
+   static void mark_as_scavengable(nmethod* nm);
+-  static void mark_as_scavengable_g1(nmethod* nm);
+  static void unregister_nmethod_g1(nmethod* nm);
+  static void register_nmethod_g1(nmethod* nm);
+   static void unpatch_bytecode(Method* method);
+   static void fix_invoke_method(Method* method);
+ 
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0014-Initialize-method-s-_new_version-_old_version-to-NUL.patch
+++ b/jb/project/tools/patches/dcevm/0014-Initialize-method-s-_new_version-_old_version-to-NUL.patch
@@ -0,0 +1,26 @@
+From 5c7e5f245f79d7e8575461dab0c356ed74c8e9a3 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Thu, 22 Oct 2020 20:15:20 +0200
+Subject: [PATCH 14/34] Initialize method's _new_version/_old_version to NULL
+
+---
+ src/hotspot/share/oops/method.cpp | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
+index 1c88511a5fc..ce940cf10a9 100644
+--- a/src/hotspot/share/oops/method.cpp
+++ b/src/hotspot/share/oops/method.cpp
+@@ -91,7 +91,8 @@ Method* Method::allocate(ClassLoaderData* loader_data,
+   return new (loader_data, size, MetaspaceObj::MethodType, THREAD) Method(cm, access_flags);
+ }
+ 
+-Method::Method(ConstMethod* xconst, AccessFlags access_flags) {
+Method::Method(ConstMethod* xconst, AccessFlags access_flags) :  _new_version(NULL),
+                                                                 _old_version(NULL) {
+   NoSafepointVerifier no_safepoint;
+   set_constMethod(xconst);
+   set_access_flags(access_flags);
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0015-Clear-dcevm-code-separation.patch
+++ b/jb/project/tools/patches/dcevm/0015-Clear-dcevm-code-separation.patch
@@ -0,0 +1,193 @@
+From 6ffac6e5064ec6633fdbeb8520333dca00bc6a62 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Fri, 23 Oct 2020 10:20:26 +0200
+Subject: [PATCH 15/34] Clear dcevm code separation
+
+---
+ src/hotspot/share/classfile/systemDictionary.cpp |  4 ++--
+ src/hotspot/share/gc/serial/genMarkSweep.cpp     |  8 +++++---
+ src/hotspot/share/interpreter/linkResolver.cpp   | 16 +++++++++++-----
+ .../instrumentation/jfrEventClassTransformer.cpp |  2 +-
+ src/hotspot/share/oops/instanceKlass.cpp         | 10 ++++++----
+ src/hotspot/share/oops/method.cpp                |  2 +-
+ .../share/prims/jvmtiGetLoadedClasses.cpp        |  2 +-
+ src/hotspot/share/runtime/reflection.cpp         |  2 +-
+ 8 files changed, 28 insertions(+), 18 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index 8f2b46add4d..9ac6ec96cb5 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
+++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -1241,7 +1241,7 @@ InstanceKlass* SystemDictionary::resolve_from_stream(Symbol* class_name,
+     MutexLocker mu(THREAD, SystemDictionary_lock);
+ 
+     Klass* check = find_class(h_name, k->class_loader_data());
+-    assert((check == k && !k->is_redefining()) || (k->is_redefining() && check == k->old_version()), "should be present in the dictionary");
+    assert(check == k && !k->is_redefining() || k->is_redefining() && check == k->old_version(), "should be present in the dictionary");
+   } );
+ 
+   return k;
+@@ -2290,7 +2290,7 @@ void SystemDictionary::check_constraints(unsigned int d_hash,
+       // also hold array classes.
+ 
+       assert(check->is_instance_klass(), "noninstance in systemdictionary");
+-      if ((defining == true) || ((k != check) && k->old_version() != check)) {
+      if ((defining == true) || (k != check && (!AllowEnhancedClassRedefinition || k->old_version() != check))) {
+         throwException = true;
+         ss.print("loader %s", loader_data->loader_name_and_id());
+         ss.print(" attempted duplicate %s definition for %s. (%s)",
+diff --git a/src/hotspot/share/gc/serial/genMarkSweep.cpp b/src/hotspot/share/gc/serial/genMarkSweep.cpp
+index 1d13c647452..548df01e557 100644
+--- a/src/hotspot/share/gc/serial/genMarkSweep.cpp
+++ b/src/hotspot/share/gc/serial/genMarkSweep.cpp
+@@ -334,7 +334,9 @@ void GenMarkSweep::mark_sweep_phase4() {
+ 
+   GenCompactClosure blk;
+   gch->generation_iterate(&blk, true);
+-  DcevmSharedGC::copy_rescued_objects_back(MarkSweep::_rescued_oops, true);
+-  DcevmSharedGC::clear_rescued_objects_resource(MarkSweep::_rescued_oops);
+-  MarkSweep::_rescued_oops = NULL;
+  if (AllowEnhancedClassRedefinition) {
+    DcevmSharedGC::copy_rescued_objects_back(MarkSweep::_rescued_oops, true);
+    DcevmSharedGC::clear_rescued_objects_resource(MarkSweep::_rescued_oops);
+    MarkSweep::_rescued_oops = NULL;
+  }
+ }
+diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
+index b6e9e0a308d..b2f24ddbeda 100644
+--- a/src/hotspot/share/interpreter/linkResolver.cpp
+++ b/src/hotspot/share/interpreter/linkResolver.cpp
+@@ -282,9 +282,14 @@ void LinkResolver::check_klass_accessibility(Klass* ref_klass, Klass* sel_klass,
+   if (!base_klass->is_instance_klass()) {
+     return;  // no relevant check to do
+   }
+-
+-  Reflection::VerifyClassAccessResults vca_result =
+-    Reflection::verify_class_access(ref_klass->newest_version(), InstanceKlass::cast(base_klass->newest_version()), true);
+  Klass* refKlassNewest = ref_klass;
+  Klass* baseKlassNewest = base_klass;
+  if (AllowEnhancedClassRedefinition) {
+    refKlassNewest = ref_klass->newest_version();
+    baseKlassNewest = base_klass->newest_version();
+  }
+  Reflection::VerifyClassAccessResults vca_result = 
+    Reflection::verify_class_access(refKlassNewest, InstanceKlass::cast(baseKlassNewest), true);
+   if (vca_result != Reflection::ACCESS_OK) {
+     ResourceMark rm(THREAD);
+     char* msg = Reflection::verify_class_access_msg(ref_klass,
+@@ -566,7 +571,8 @@ void LinkResolver::check_method_accessability(Klass* ref_klass,
+   // We'll check for the method name first, as that's most likely
+   // to be false (so we'll short-circuit out of these tests).
+   if (sel_method->name() == vmSymbols::clone_name() &&
+-      sel_klass->newest_version() == SystemDictionary::Object_klass()->newest_version() &&
+      ( !AllowEnhancedClassRedefinition && sel_klass == SystemDictionary::Object_klass() ||
+      AllowEnhancedClassRedefinition && sel_klass->newest_version() == SystemDictionary::Object_klass()->newest_version()) &&
+       resolved_klass->is_array_klass()) {
+     // We need to change "protected" to "public".
+     assert(flags.is_protected(), "clone not protected?");
+@@ -1011,7 +1017,7 @@ void LinkResolver::resolve_field(fieldDescriptor& fd,
+     //     or by the <init> method (in case of an instance field).
+     if (is_put && fd.access_flags().is_final()) {
+ 
+-      if (sel_klass != current_klass && sel_klass != current_klass->active_version()) {
+      if (sel_klass != current_klass && (!AllowEnhancedClassRedefinition || sel_klass != current_klass->active_version())) {
+         ResourceMark rm(THREAD);
+         stringStream ss;
+         ss.print("Update to %s final field %s.%s attempted from a different class (%s) than the field's declaring class",
+diff --git a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
+index 96fc139bea3..f7284197c5a 100644
+--- a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
+++ b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
+@@ -1471,7 +1471,7 @@ static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStre
+                              cld,
+                              &cl_info,
+                              ClassFileParser::INTERNAL, // internal visibility
+-							 false,
+                             false,
+                              THREAD);
+   if (HAS_PENDING_EXCEPTION) {
+     log_pending_exception(PENDING_EXCEPTION);
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index 3be3a09ef8f..f8e60941046 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
+++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -199,7 +199,9 @@ bool InstanceKlass::has_nest_member(InstanceKlass* k, TRAPS) const {
+         // able to perform that loading but we can't exclude the compiler threads from
+         // executing this logic. But it should actually be impossible to trigger loading here.
+         Klass* k2 = _constants->klass_at(cp_index, THREAD);
+-        k2 = k2->newest_version();
+        if (AllowEnhancedClassRedefinition) {
+          k2 = k2->newest_version();
+        }
+         assert(!HAS_PENDING_EXCEPTION || PENDING_EXCEPTION->is_a(SystemDictionary::VirtualMachineError_klass()),
+                "Exceptions should not be possible here");
+         if (k2 == k) {
+@@ -1003,7 +1005,7 @@ bool InstanceKlass::link_class_impl(TRAPS) {
+ #endif
+       set_init_state(linked);
+       // (DCEVM) Must check for old version in order to prevent infinite loops.
+-      if (JvmtiExport::should_post_class_prepare() && old_version() == NULL /* JVMTI deadlock otherwise */) {
+      if (JvmtiExport::should_post_class_prepare() && (!AllowEnhancedClassRedefinition || old_version() == NULL) /* JVMTI deadlock otherwise */) {
+         Thread *thread = THREAD;
+         assert(thread->is_Java_thread(), "thread->is_Java_thread()");
+         JvmtiExport::post_class_prepare((JavaThread *) thread, this);
+@@ -1084,7 +1086,7 @@ void InstanceKlass::initialize_impl(TRAPS) {
+     // we might end up throwing IE from link/symbol resolution sites
+     // that aren't expected to throw.  This would wreak havoc.  See 6320309.
+     while ((is_being_initialized() && !is_reentrant_initialization(jt)) 
+-            || (old_version() != NULL && InstanceKlass::cast(old_version())->is_being_initialized())) {
+            || (AllowEnhancedClassRedefinition && old_version() != NULL && InstanceKlass::cast(old_version())->is_being_initialized())) {
+       wait = true;
+       jt->set_class_to_be_initialized(this);
+       ol.wait_uninterruptibly(jt);
+@@ -3782,7 +3784,7 @@ void InstanceKlass::verify_on(outputStream* st) {
+ 
+     guarantee(sib->is_klass(), "should be klass");
+     // TODO: (DCEVM) explain
+-    guarantee(sib->super() == super || super->newest_version() == SystemDictionary::Object_klass(), "siblings should have same superklass");
+    guarantee(sib->super() == super || AllowEnhancedClassRedefinition && super->newest_version() == SystemDictionary::Object_klass(), "siblings should have same superklass");
+   }
+ 
+   // Verify local interfaces
+diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
+index ce940cf10a9..2d8e5b0256b 100644
+--- a/src/hotspot/share/oops/method.cpp
+++ b/src/hotspot/share/oops/method.cpp
+@@ -2208,7 +2208,7 @@ void Method::ensure_jmethod_ids(ClassLoaderData* loader_data, int capacity) {
+ // Add a method id to the jmethod_ids
+ jmethodID Method::make_jmethod_id(ClassLoaderData* loader_data, Method* m) {
+   // FIXME: (DCEVM) ???
+-  if (m != m->newest_version()) {
+  if (AllowEnhancedClassRedefinition && m != m->newest_version()) {
+     m = m->newest_version();
+   }
+   ClassLoaderData* cld = loader_data;
+diff --git a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+index 1c7677f270f..6c12ee64a6e 100644
+--- a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+@@ -75,7 +75,7 @@ public:
+     //         the new version (SystemDictionary stores only new versions). But the LoadedClassesClosure's functionality was
+     //         changed in java8  where jvmtiLoadedClasses collects all classes from all classloaders, therefore we
+     //         must use new versions only.
+-    if (k->new_version()==NULL) {
+    if (AllowEnhancedClassRedefinition && k->new_version()==NULL) {
+       _classStack.push((jclass) _env->jni_reference(Handle(_cur_thread, k->java_mirror())));
+       if (_dictionary_walk) {
+         // Collect array classes this way when walking the dictionary (because array classes are
+diff --git a/src/hotspot/share/runtime/reflection.cpp b/src/hotspot/share/runtime/reflection.cpp
+index 0e7722dba7d..d67457f02ac 100644
+--- a/src/hotspot/share/runtime/reflection.cpp
+++ b/src/hotspot/share/runtime/reflection.cpp
+@@ -628,7 +628,7 @@ bool Reflection::verify_member_access(const Klass* current_class,
+                                       TRAPS) {
+ 
+   // (DCEVM) Decide accessibility based on active version
+-  if (current_class != NULL) {
+  if (AllowEnhancedClassRedefinition && current_class != NULL) {
+     current_class = current_class->active_version();
+   }
+ 
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0016-Fix-LoadedClassesClosure-fixes-problems-with-remote-.patch
+++ b/jb/project/tools/patches/dcevm/0016-Fix-LoadedClassesClosure-fixes-problems-with-remote-.patch
@@ -0,0 +1,26 @@
+From dc675de6ac42819b8536827ea450fcad13a97448 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Wed, 11 Nov 2020 18:45:15 +0100
+Subject: [PATCH 16/34] Fix LoadedClassesClosure - fixes problems with remote
+ debugging
+
+---
+ src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+index 6c12ee64a6e..2a469555dbd 100644
+--- a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+@@ -75,7 +75,7 @@ public:
+     //         the new version (SystemDictionary stores only new versions). But the LoadedClassesClosure's functionality was
+     //         changed in java8  where jvmtiLoadedClasses collects all classes from all classloaders, therefore we
+     //         must use new versions only.
+-    if (AllowEnhancedClassRedefinition && k->new_version()==NULL) {
+    if (!AllowEnhancedClassRedefinition || k->new_version()==NULL) {
+       _classStack.push((jclass) _env->jni_reference(Handle(_cur_thread, k->java_mirror())));
+       if (_dictionary_walk) {
+         // Collect array classes this way when walking the dictionary (because array classes are
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0017-pre-dcevm15-Cleanup-code-related-to-removed-CMS.patch
+++ b/jb/project/tools/patches/dcevm/0017-pre-dcevm15-Cleanup-code-related-to-removed-CMS.patch
--- a/jb/project/tools/patches/dcevm/0018-pre-dcevm15-fix-GC-spaces-originally-in-removed-CMS-.patch
+++ b/jb/project/tools/patches/dcevm/0018-pre-dcevm15-fix-GC-spaces-originally-in-removed-CMS-.patch
@@ -0,0 +1,183 @@
+From 1d682efa88c716e1849163d5abff3a3367581d16 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Mon, 16 Nov 2020 21:11:19 +0100
+Subject: [PATCH 18/34] pre dcevm15 - fix GC spaces originally in removed CMS
+ patch
+
+---
+ src/hotspot/share/gc/shared/space.cpp            | 16 ++++++++--------
+ src/hotspot/share/gc/shared/space.hpp            |  6 +++---
+ src/hotspot/share/gc/shared/space.inline.hpp     | 14 ++++++++------
+ .../share/prims/jvmtiEnhancedRedefineClasses.cpp |  6 ++----
+ 4 files changed, 21 insertions(+), 21 deletions(-)
+
+diff --git a/src/hotspot/share/gc/shared/space.cpp b/src/hotspot/share/gc/shared/space.cpp
+index 875a6dc854f..9772c32c42e 100644
+--- a/src/hotspot/share/gc/shared/space.cpp
+++ b/src/hotspot/share/gc/shared/space.cpp
+@@ -375,11 +375,11 @@ HeapWord* CompactibleSpace::forward_compact_top(size_t size, CompactPoint* cp, H
+ }
+ 
+ HeapWord* CompactibleSpace::forward(oop q, size_t size,
+-                                    CompactPoint* cp, HeapWord* compact_top) {
+                                    CompactPoint* cp, HeapWord* compact_top, bool force_forward) {
+   compact_top = forward_compact_top(size, cp, compact_top);
+ 
+   // store the forwarding pointer into the mark word
+-  if (cast_from_oop<HeapWord*>(q) != compact_top || (size_t)q->size() != size) {
+  if (force_forward || cast_from_oop<HeapWord*>(q) != compact_top || (size_t)q->size() != size) {
+     q->forward_to(oop(compact_top));
+     assert(q->is_gc_marked(), "encoding the pointer should preserve the mark");
+   } else {
+@@ -501,7 +501,7 @@ bool CompactibleSpace::must_rescue(oop old_obj, oop new_obj) {
+ 
+   } else {
+     assert(space_index(old_obj) != space_index(new_obj), "old_obj and new_obj must be in different spaces");
+-    if (tenured_gen->is_in_reserved(new_obj)) {
+    if (new_in_tenured) {
+       // Must never rescue when moving from the new into the old generation.
+       assert(GenCollectedHeap::heap()->young_gen()->is_in_reserved(old_obj), "old_obj must be in DefNewGeneration");
+       assert(space_index(old_obj) > space_index(new_obj), "must be");
+@@ -824,14 +824,14 @@ void OffsetTableContigSpace::verify() const {
+ // Compute the forward sizes and leave out objects whose position could
+ // possibly overlap other objects.
+ HeapWord* CompactibleSpace::forward_with_rescue(HeapWord* q, size_t size,
+-                                                CompactPoint* cp, HeapWord* compact_top) {
+                                                CompactPoint* cp, HeapWord* compact_top, bool force_forward) {
+   size_t forward_size = size;
+ 
+   // (DCEVM) There is a new version of the class of q => different size
+   if (oop(q)->klass()->new_version() != NULL) {
+ 
+     size_t new_size = oop(q)->size_given_klass(oop(q)->klass()->new_version());
+-    assert(size != new_size, "instances without changed size have to be updated prior to GC run");
+    // assert(size != new_size, "instances without changed size have to be updated prior to GC run");
+     forward_size = new_size;
+   }
+ 
+@@ -845,7 +845,7 @@ HeapWord* CompactibleSpace::forward_with_rescue(HeapWord* q, size_t size,
+     return compact_top;
+   }
+ 
+-  return forward(oop(q), forward_size, cp, compact_top);
+  return forward(oop(q), forward_size, cp, compact_top, force_forward);
+ }
+ 
+ // Compute the forwarding addresses for the objects that need to be rescued.
+@@ -861,11 +861,11 @@ HeapWord* CompactibleSpace::forward_rescued(CompactPoint* cp, HeapWord* compact_
+       // (DCEVM) There is a new version of the class of q => different size
+       if (oop(q)->klass()->new_version() != NULL) {
+         size_t new_size = oop(q)->size_given_klass(oop(q)->klass()->new_version());
+-        assert(size != new_size, "instances without changed size have to be updated prior to GC run");
+        // assert(size != new_size, "instances without changed size have to be updated prior to GC run");
+         size = new_size;
+       }
+ 
+-      compact_top = cp->space->forward(oop(q), size, cp, compact_top);
+      compact_top = cp->space->forward(oop(q), size, cp, compact_top, true);
+       assert(compact_top <= end(), "must not write over end of space!");
+     }
+     MarkSweep::_rescued_oops->clear();
+diff --git a/src/hotspot/share/gc/shared/space.hpp b/src/hotspot/share/gc/shared/space.hpp
+index c9bfc365f0f..f7648995454 100644
+--- a/src/hotspot/share/gc/shared/space.hpp
+++ b/src/hotspot/share/gc/shared/space.hpp
+@@ -405,7 +405,7 @@ public:
+   virtual void prepare_for_compaction(CompactPoint* cp) = 0;
+   // MarkSweep support phase3
+   DEBUG_ONLY(int space_index(oop obj));
+-  bool must_rescue(oop old_obj, oop new_obj);
+  virtual bool must_rescue(oop old_obj, oop new_obj);
+   HeapWord* rescue(HeapWord* old_obj);
+   virtual void adjust_pointers();
+   // MarkSweep support phase4
+@@ -436,11 +436,11 @@ public:
+   // function of the then-current compaction space, and updates "cp->threshold
+   // accordingly".
+   virtual HeapWord* forward(oop q, size_t size, CompactPoint* cp,
+-                    HeapWord* compact_top);
+                    HeapWord* compact_top, bool force_forward);
+   // (DCEVM) same as forwad, but can rescue objects. Invoked only during
+   // redefinition runs
+   HeapWord* forward_with_rescue(HeapWord* q, size_t size, CompactPoint* cp,
+-                                HeapWord* compact_top);
+                                HeapWord* compact_top, bool force_forward);
+ 
+   HeapWord* forward_rescued(CompactPoint* cp, HeapWord* compact_top);
+ 
+diff --git a/src/hotspot/share/gc/shared/space.inline.hpp b/src/hotspot/share/gc/shared/space.inline.hpp
+index 5a93e93471b..fa645423685 100644
+--- a/src/hotspot/share/gc/shared/space.inline.hpp
+++ b/src/hotspot/share/gc/shared/space.inline.hpp
+@@ -163,6 +163,8 @@ inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* c
+   HeapWord* cur_obj = space->bottom();
+   HeapWord* scan_limit = space->scan_limit();
+ 
+  bool force_forward = false;
+
+   while (cur_obj < scan_limit) {
+     assert(!space->scanned_block_is_obj(cur_obj) ||
+            oop(cur_obj)->mark_raw().is_marked() || oop(cur_obj)->mark_raw().is_unlocked() ||
+@@ -174,14 +176,15 @@ inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* c
+       size_t size = space->scanned_block_size(cur_obj);
+ 
+       if (redefinition_run) {
+-        compact_top = cp->space->forward_with_rescue(cur_obj, size, cp, compact_top);
+        compact_top = cp->space->forward_with_rescue(cur_obj, size, cp, compact_top, force_forward);
+         if (first_dead == NULL && oop(cur_obj)->is_gc_marked()) {
+           /* Was moved (otherwise, forward would reset mark),
+              set first_dead to here */
+           first_dead = cur_obj;
+          force_forward = true;
+         }
+       } else {
+-        compact_top = cp->space->forward(oop(cur_obj), size, cp, compact_top);
+        compact_top = cp->space->forward(oop(cur_obj), size, cp, compact_top, false);
+       }
+ 
+       cur_obj += size;
+@@ -197,9 +200,9 @@ inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* c
+ 
+       // see if we might want to pretend this object is alive so that
+       // we don't have to compact quite as often.
+-      if (cur_obj == compact_top && dead_spacer.insert_deadspace(cur_obj, end)) {
+      if (!redefinition_run && cur_obj == compact_top && dead_spacer.insert_deadspace(cur_obj, end)) {
+         oop obj = oop(cur_obj);
+-        compact_top = cp->space->forward(obj, obj->size(), cp, compact_top);
+        compact_top = cp->space->forward(obj, obj->size(), cp, compact_top, force_forward);
+         end_of_live = end;
+       } else {
+         // otherwise, it really is a free region.
+@@ -362,8 +365,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
+       Prefetch::write(compaction_top, copy_interval);
+ 
+       // copy object and reinit its mark
+-      assert(cur_obj != compaction_top || oop(cur_obj)->klass()->new_version() != NULL,
+-             "everything in this pass should be moving");
+      assert(redefinition_run || cur_obj != compaction_top, "everything in this pass should be moving");
+       if (redefinition_run && oop(cur_obj)->klass()->new_version() != NULL) {
+         Klass* new_version = oop(cur_obj)->klass()->new_version();
+         if (new_version->update_information() == NULL) {
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 718426f2819..1da6661dd3e 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -431,13 +431,11 @@ public:
+       Klass* new_klass = obj->klass()->new_version();
+ 
+       if (new_klass->update_information() != NULL) {
+-        int size_diff = obj->size() - obj->size_given_klass(new_klass);
+-
+-        // Either new size is bigger or gap is to small to be filled
+-        if (size_diff < 0 || (size_diff > 0 && (size_t) size_diff < CollectedHeap::min_fill_size())) {
+        if (obj->size() - obj->size_given_klass(new_klass) != 0) {
+           // We need an instance update => set back to old klass
+           _needs_instance_update = true;
+         } else {
+          // Either new size is bigger or gap is to small to be filled
+           oop src = obj;
+           if (new_klass->is_copying_backwards()) {
+             copy_to_tmp(obj);
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0019-dcevm15-fix-java15-patch-compilation-issues.patch
+++ b/jb/project/tools/patches/dcevm/0019-dcevm15-fix-java15-patch-compilation-issues.patch
@@ -0,0 +1,942 @@
+From 297f564f6af79fb824f5b4e9119f1d3d0c827fb0 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Mon, 16 Nov 2020 20:20:12 +0100
+Subject: [PATCH 19/34] dcevm15 - fix java15 patch compilation issues
+
+---
+ .../share/classfile/classFileParser.hpp       |   8 +-
+ .../share/classfile/classLoaderData.cpp       |   2 +-
+ src/hotspot/share/classfile/dictionary.hpp    |  10 +-
+ src/hotspot/share/classfile/javaClasses.hpp   |   2 +
+ .../share/gc/g1/g1FullGCCompactTask.cpp       |   4 +-
+ .../share/gc/g1/g1FullGCCompactionPoint.cpp   |   8 +-
+ .../share/gc/g1/g1FullGCPrepareTask.cpp       |   4 +-
+ src/hotspot/share/gc/shared/dcevmSharedGC.cpp |  14 +-
+ src/hotspot/share/gc/shared/dcevmSharedGC.hpp |   2 +-
+ src/hotspot/share/gc/shared/gcConfig.cpp      |   2 +-
+ src/hotspot/share/gc/shared/space.cpp         |   4 +-
+ .../share/interpreter/linkResolver.cpp        |   2 +-
+ src/hotspot/share/oops/instanceKlass.cpp      |  17 ++-
+ src/hotspot/share/oops/instanceKlass.hpp      |   1 +
+ src/hotspot/share/oops/klass.cpp              |   8 +-
+ src/hotspot/share/prims/jvm.cpp               |   2 +
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 129 +++++++++---------
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |  14 +-
+ src/hotspot/share/prims/jvmtiEnv.cpp          |  11 +-
+ .../share/prims/jvmtiRedefineClasses.cpp      |   1 +
+ src/hotspot/share/prims/methodHandles.hpp     |   3 +
+ src/hotspot/share/runtime/arguments.cpp       |  22 +--
+ src/hotspot/share/runtime/mutexLocker.cpp     |   2 +-
+ 23 files changed, 159 insertions(+), 113 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classFileParser.hpp b/src/hotspot/share/classfile/classFileParser.hpp
+index e5761e61767..0d266b9047e 100644
+--- a/src/hotspot/share/classfile/classFileParser.hpp
+++ b/src/hotspot/share/classfile/classFileParser.hpp
+@@ -150,9 +150,6 @@ class ClassFileParser {
+   const intArray* _method_ordering;
+   GrowableArray<Method*>* _all_mirandas;
+ 
+-  // Enhanced class redefinition
+-  const bool _pick_newest;
+-
+   enum { fixed_buffer_size = 128 };
+   u_char _linenumbertable_buffer[fixed_buffer_size];
+ 
+@@ -206,6 +203,9 @@ class ClassFileParser {
+   bool _has_vanilla_constructor;
+   int _max_bootstrap_specifier_index;  // detects BSS values
+ 
+  // (DCEVM) Enhanced class redefinition
+  const bool _pick_newest;
+
+   void parse_stream(const ClassFileStream* const stream, TRAPS);
+ 
+   void mangle_hidden_class_name(InstanceKlass* const ik);
+@@ -582,7 +582,7 @@ class ClassFileParser {
+   ClassLoaderData* loader_data() const { return _loader_data; }
+   const Symbol* class_name() const { return _class_name; }
+   const InstanceKlass* super_klass() const { return _super_klass; }
+-  Array<Klass*>* local_interfaces() const { return _local_interfaces; }
+  Array<InstanceKlass*>* local_interfaces() const { return _local_interfaces; }
+ 
+   ReferenceType reference_type() const { return _rt; }
+   AccessFlags access_flags() const { return _access_flags; }
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 4d64c6b454a..aadcd50ef4a 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
+++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -597,7 +597,7 @@ void ClassLoaderData::exchange_holders(ClassLoaderData* cld) {
+   oop holder_oop = _holder.peek();
+   _holder.replace(cld->_holder.peek());
+   cld->_holder.replace(holder_oop);
+-  WeakHandle<vm_class_loader_data> exchange = _holder;
+  WeakHandle<vm_weak_data> exchange = _holder;
+   _holder = cld->_holder;
+   cld->_holder = exchange;
+ }
+diff --git a/src/hotspot/share/classfile/dictionary.hpp b/src/hotspot/share/classfile/dictionary.hpp
+index 114a983e783..a50f4ff84d2 100644
+--- a/src/hotspot/share/classfile/dictionary.hpp
+++ b/src/hotspot/share/classfile/dictionary.hpp
+@@ -84,6 +84,11 @@ public:
+   void print_on(outputStream* st) const;
+   void verify();
+ 
+  // (DCEVM) Enhanced class redefinition
+  bool update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass);
+
+  void rollback_redefinition();
+
+  private:
+   DictionaryEntry* new_entry(unsigned int hash, InstanceKlass* klass);
+ 
+@@ -106,11 +111,6 @@ public:
+ 
+   void free_entry(DictionaryEntry* entry);
+ 
+-  // Enhanced class redefinition
+-  bool update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass);
+-
+-  void rollback_redefinition();
+-
+   // (DCEVM) return old class if redefining in AllowEnhancedClassRedefinition, otherwise return "k"
+   static InstanceKlass* old_if_redefined(InstanceKlass* k) {
+     return (k != NULL && k->is_redefining()) ? ((InstanceKlass* )k->old_version()) : k;
+diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
+index a68c5139151..9abf2e1d105 100644
+--- a/src/hotspot/share/classfile/javaClasses.hpp
+++ b/src/hotspot/share/classfile/javaClasses.hpp
+@@ -255,7 +255,9 @@ class java_lang_Class : AllStatic {
+   static void set_init_lock(oop java_class, oop init_lock);
+   static void set_protection_domain(oop java_class, oop protection_domain);
+   static void set_class_loader(oop java_class, oop class_loader);
+ public: // DCEVM
+   static void set_component_mirror(oop java_class, oop comp_mirror);
+ private:
+   static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain,
+                                        Handle classData, TRAPS);
+   static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain, TRAPS);
+diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
+index f70f4606dc8..a22ed48560d 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
+++ b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
+@@ -157,14 +157,14 @@ void G1FullGCCompactTask::serial_compaction_dcevm() {
+ 
+ size_t G1FullGCCompactTask::G1CompactRegionClosureDcevm::apply(oop obj) {
+   size_t size = obj->size();
+-  HeapWord* destination = (HeapWord*)obj->forwardee();
+  HeapWord* destination = cast_from_oop<HeapWord*>(obj->forwardee());
+   if (destination == NULL) {
+     // Object not moving
+     return size;
+   }
+ 
+   // copy object and reinit its mark
+-  HeapWord* obj_addr = (HeapWord*) obj;
+  HeapWord* obj_addr = cast_from_oop<HeapWord*>(obj);
+ 
+   if (!_rescue_oops_it->at_end() && **_rescue_oops_it == obj_addr) {
+     ++(*_rescue_oops_it);
+diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
+index 1e49571c999..755935a2c91 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
+++ b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
+@@ -174,7 +174,7 @@ void G1FullGCCompactionPoint::forward_dcevm(oop object, size_t size, bool force_
+   assert(_current_region != NULL, "Must have been initialized");
+ 
+   // Store a forwarding pointer if the object should be moved.
+-  if ((HeapWord*)object != _compaction_top || force_forward) {
+  if (cast_from_oop<HeapWord*>(object) != _compaction_top || force_forward) {
+     object->forward_to(oop(_compaction_top));
+   } else {
+     if (object->forwardee() != NULL) {
+@@ -188,11 +188,11 @@ void G1FullGCCompactionPoint::forward_dcevm(oop object, size_t size, bool force_
+     } else {
+       // Make sure object has the correct mark-word set or that it will be
+       // fixed when restoring the preserved marks.
+-      assert(object->mark_raw() == markOopDesc::prototype_for_object(object) || // Correct mark
+-             object->mark_raw()->must_be_preserved(object) || // Will be restored by PreservedMarksSet
+      assert(object->mark_raw() == markWord::prototype_for_klass(object->klass()) || // Correct mark
+             object->mark_must_be_preserved() || // Will be restored by PreservedMarksSet
+              (UseBiasedLocking && object->has_bias_pattern_raw()), // Will be restored by BiasedLocking
+              "should have correct prototype obj: " PTR_FORMAT " mark: " PTR_FORMAT " prototype: " PTR_FORMAT,
+-             p2i(object), p2i(object->mark_raw()), p2i(markOopDesc::prototype_for_object(object)));
+             p2i(object), object->mark_raw().value(), markWord::prototype_for_klass(object->klass()).value());
+     }
+     assert(object->forwardee() == NULL, "should be forwarded to NULL");
+   }
+diff --git a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+index a45681b60cf..2f06b9617e4 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+++ b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+@@ -269,7 +269,7 @@ size_t G1FullGCPrepareTask::G1PrepareCompactLiveClosureDcevm::apply(oop object)
+   HeapWord* compact_top = _cp->forward_compact_top(forward_size);
+ 
+   if (compact_top == NULL || must_rescue(object, oop(compact_top))) {
+-    _cp->rescued_oops()->append((HeapWord*)object);
+    _cp->rescued_oops()->append(cast_from_oop<HeapWord*>(object));
+   } else {
+     _cp->forward_dcevm(object, forward_size, (size != forward_size));
+   }
+@@ -295,7 +295,7 @@ bool G1FullGCPrepareTask::G1PrepareCompactLiveClosureDcevm::must_rescue(oop old_
+   int new_size = old_obj->size_given_klass(oop(old_obj)->klass()->new_version());
+   int original_size = old_obj->size();
+ 
+-  bool overlap = ((HeapWord*)old_obj + original_size < (HeapWord*)new_obj + new_size);
+  bool overlap = (cast_from_oop<HeapWord*>(old_obj) + original_size < cast_from_oop<HeapWord*>(new_obj) + new_size);
+ 
+   return overlap;
+ }
+diff --git a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
+index 803e645f843..3dee097f1d3 100644
+--- a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
+++ b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
+@@ -58,10 +58,10 @@ void DcevmSharedGC::copy_rescued_objects_back(GrowableArray<HeapWord*>* rescued_
+           DcevmSharedGC::update_fields(rescued_obj, new_obj);
+         } else {
+           rescued_obj->set_klass(new_klass);
+-          Copy::aligned_disjoint_words((HeapWord*)rescued_obj, (HeapWord*)new_obj, size);
+          Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(rescued_obj), cast_from_oop<HeapWord*>(new_obj), size);
+         }
+       } else {
+-        Copy::aligned_disjoint_words((HeapWord*)rescued_obj, (HeapWord*)new_obj, size);
+        Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(rescued_obj), cast_from_oop<HeapWord*>(new_obj), size);
+       }
+ 
+       new_obj->init_mark_raw();
+@@ -111,11 +111,11 @@ void DcevmSharedGC::update_fields(oop q, oop new_location) {
+ 
+   // Save object somewhere, there is an overlap in fields
+   if (new_klass_oop->is_copying_backwards()) {
+-    if (((HeapWord *)q >= (HeapWord *)new_location && (HeapWord *)q < (HeapWord *)new_location + new_size) ||
+-        ((HeapWord *)new_location >= (HeapWord *)q && (HeapWord *)new_location < (HeapWord *)q + size)) {
+    if ((cast_from_oop<HeapWord*>(q) >= cast_from_oop<HeapWord*>(new_location) && cast_from_oop<HeapWord*>(q) < cast_from_oop<HeapWord*>(new_location) + new_size) ||
+        (cast_from_oop<HeapWord*>(new_location) >= cast_from_oop<HeapWord*>(q) && cast_from_oop<HeapWord*>(new_location) < cast_from_oop<HeapWord*>(q) + size)) {
+        tmp = NEW_RESOURCE_ARRAY(HeapWord, size);
+        q = (oop) tmp;
+-       Copy::aligned_disjoint_words((HeapWord*)tmp_obj, (HeapWord*)q, size);
+       Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(tmp_obj), cast_from_oop<HeapWord*>(q), size);
+     }
+   }
+ 
+@@ -131,13 +131,13 @@ void DcevmSharedGC::update_fields(oop q, oop new_location) {
+ 
+ void DcevmSharedGC::update_fields(oop new_location, oop tmp_obj, int *cur) {
+   assert(cur != NULL, "just checking");
+-  char* to = (char*)(HeapWord*)new_location;
+  char* to = (char*)cast_from_oop<HeapWord*>(new_location);
+   while (*cur != 0) {
+     int size = *cur;
+     if (size > 0) {
+       cur++;
+       int offset = *cur;
+-      HeapWord* from = (HeapWord*)(((char *)(HeapWord*)tmp_obj) + offset);
+      HeapWord* from = (HeapWord*)(((char *)cast_from_oop<HeapWord*>(tmp_obj)) + offset);
+       if (size == HeapWordSize) {
+         *((HeapWord*)to) = *from;
+       } else if (size == HeapWordSize * 2) {
+diff --git a/src/hotspot/share/gc/shared/dcevmSharedGC.hpp b/src/hotspot/share/gc/shared/dcevmSharedGC.hpp
+index e2ef0171fb2..a4e27e00280 100644
+--- a/src/hotspot/share/gc/shared/dcevmSharedGC.hpp
+++ b/src/hotspot/share/gc/shared/dcevmSharedGC.hpp
+@@ -29,7 +29,7 @@
+ #include "gc/shared/genOopClosures.hpp"
+ #include "gc/shared/taskqueue.hpp"
+ #include "memory/iterator.hpp"
+-#include "oops/markOop.hpp"
+#include "oops/markWord.hpp"
+ #include "oops/oop.hpp"
+ #include "runtime/timer.hpp"
+ #include "utilities/growableArray.hpp"
+diff --git a/src/hotspot/share/gc/shared/gcConfig.cpp b/src/hotspot/share/gc/shared/gcConfig.cpp
+index f01d64d1434..5c1a09390f1 100644
+--- a/src/hotspot/share/gc/shared/gcConfig.cpp
+++ b/src/hotspot/share/gc/shared/gcConfig.cpp
+@@ -100,7 +100,7 @@ void GCConfig::fail_if_non_included_gc_is_selected() {
+ void GCConfig::select_gc_ergonomically() {
+   if (AllowEnhancedClassRedefinition && !UseG1GC) {
+     // Enhanced class redefinition only supports serial GC at the moment
+-    FLAG_SET_ERGO(bool, UseSerialGC, true);
+    FLAG_SET_ERGO(UseSerialGC, true);
+   } else if (os::is_server_class_machine()) {
+ #if INCLUDE_G1GC
+     FLAG_SET_ERGO_IF_DEFAULT(UseG1GC, true);
+diff --git a/src/hotspot/share/gc/shared/space.cpp b/src/hotspot/share/gc/shared/space.cpp
+index 9772c32c42e..e8e3d7884c2 100644
+--- a/src/hotspot/share/gc/shared/space.cpp
+++ b/src/hotspot/share/gc/shared/space.cpp
+@@ -440,7 +440,7 @@ int CompactibleSpace::space_index(oop obj) {
+     index++;
+   }
+ 
+-  tty->print_cr("could not compute space_index for %08xh", (HeapWord*)obj);
+  tty->print_cr("could not compute space_index for %08xh", cast_from_oop<HeapWord*>(obj));
+   index = 0;
+ 
+   Generation* gen = heap->old_gen();
+@@ -485,7 +485,7 @@ bool CompactibleSpace::must_rescue(oop old_obj, oop new_obj) {
+   bool new_in_tenured = tenured_gen->is_in_reserved(new_obj);
+   if (old_in_tenured == new_in_tenured) {
+     // Rescue if object may overlap with a higher memory address.
+-    bool overlap = ((HeapWord*)old_obj + original_size < (HeapWord*)new_obj + new_size);
+    bool overlap = (cast_from_oop<HeapWord*>(old_obj) + original_size < cast_from_oop<HeapWord*>(new_obj) + new_size);
+     if (old_in_tenured) {
+       // Old and new address are in same space, so just compare the address.
+       // Must rescue if object moves towards the top of the space.
+diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
+index b2f24ddbeda..9daeeb70b34 100644
+--- a/src/hotspot/share/interpreter/linkResolver.cpp
+++ b/src/hotspot/share/interpreter/linkResolver.cpp
+@@ -1031,7 +1031,7 @@ void LinkResolver::resolve_field(fieldDescriptor& fd,
+         assert(m != NULL, "information about the current method must be available for 'put' bytecodes");
+         bool is_initialized_static_final_update = (byte == Bytecodes::_putstatic &&
+                                                    fd.is_static() &&
+-                                                   !(m()->is_static_initializer() || m()->name() == vmSymbols::ha_class_initializer_name()));
+                                                   !(m->is_static_initializer() || m->name() == vmSymbols::ha_class_initializer_name()));
+         bool is_initialized_instance_final_update = ((byte == Bytecodes::_putfield || byte == Bytecodes::_nofast_putfield) &&
+                                                      !fd.is_static() &&
+                                                      !m->is_object_initializer());
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index f8e60941046..5e40d78a87e 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
+++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -1316,7 +1316,7 @@ void InstanceKlass::init_implementor() {
+ // (DCEVM) - init_implementor() for dcevm
+ void InstanceKlass::init_implementor_from_redefine() {
+   assert(is_interface(), "not interface");
+-  Klass** addr = adr_implementor();
+  Klass* volatile* addr = adr_implementor();
+   assert(addr != NULL, "null addr");
+   if (addr != NULL) {
+     *addr = NULL;
+@@ -1659,6 +1659,21 @@ void InstanceKlass::methods_do(void f(Method* method)) {
+   }
+ }
+ 
+void InstanceKlass::methods_do(void f(Method* method, TRAPS), TRAPS) {
+  // Methods aren't stable until they are loaded.  This can be read outside
+  // a lock through the ClassLoaderData for profiling
+  if (!is_loaded()) {
+    return;
+  }
+
+  int len = methods()->length();
+  for (int index = 0; index < len; index++) {
+    Method* m = methods()->at(index);
+    assert(m->is_method(), "must be method");
+    f(m, CHECK);
+  }
+}
+
+ //  (DCEVM) Update information contains mapping of fields from old class to the new class.
+ //  Info is stored on HEAP, you need to call clear_update_information to free the space.
+ void InstanceKlass::store_update_information(GrowableArray<int> &values) {
+diff --git a/src/hotspot/share/oops/instanceKlass.hpp b/src/hotspot/share/oops/instanceKlass.hpp
+index 6ead9426728..b56d42cb177 100644
+--- a/src/hotspot/share/oops/instanceKlass.hpp
+++ b/src/hotspot/share/oops/instanceKlass.hpp
+@@ -1069,6 +1069,7 @@ public:
+   void clear_update_information();
+ 
+   void methods_do(void f(Method* method));
+  void methods_do(void f(Method* method, TRAPS), TRAPS);
+   void array_klasses_do(void f(Klass* k));
+   void array_klasses_do(void f(Klass* k, TRAPS), TRAPS);
+ 
+diff --git a/src/hotspot/share/oops/klass.cpp b/src/hotspot/share/oops/klass.cpp
+index 352d8f84631..88f5ec9ba4a 100644
+--- a/src/hotspot/share/oops/klass.cpp
+++ b/src/hotspot/share/oops/klass.cpp
+@@ -200,13 +200,13 @@ void* Klass::operator new(size_t size, ClassLoaderData* loader_data, size_t word
+ Klass::Klass(KlassID id) : _id(id),
+                            _java_mirror(NULL),
+                            _prototype_header(markWord::prototype()),
+-                           _shared_class_path_index(-1),
+-                           _new_version(NULL),
+                            _old_version(NULL),
+                           _new_version(NULL),
+                           _redefinition_flags(Klass::NoRedefinition),
+                            _is_redefining(false),
+                           _update_information(NULL),
+                            _is_copying_backwards(false),
+-                           _redefinition_flags(Klass::NoRedefinition),
+-                           _update_information(NULL) {
+                           _shared_class_path_index(-1) {
+   CDS_ONLY(_shared_class_flags = 0;)
+   CDS_JAVA_HEAP_ONLY(_archived_mirror = 0;)
+   _primary_supers[0] = this;
+diff --git a/src/hotspot/share/prims/jvm.cpp b/src/hotspot/share/prims/jvm.cpp
+index 333b65ccfc1..13bcac352fb 100644
+--- a/src/hotspot/share/prims/jvm.cpp
+++ b/src/hotspot/share/prims/jvm.cpp
+@@ -1054,6 +1054,7 @@ static jclass jvm_lookup_define_class(JNIEnv *env, jclass lookup, const char *na
+                                                       class_loader,
+                                                       protection_domain,
+                                                       &st,
+                                                      NULL,
+                                                       CHECK_NULL);
+ 
+     if (log_is_enabled(Debug, class, resolve) && defined_k != NULL) {
+@@ -1074,6 +1075,7 @@ static jclass jvm_lookup_define_class(JNIEnv *env, jclass lookup, const char *na
+                                                class_loader,
+                                                &st,
+                                                cl_info,
+                                               NULL,
+                                                CHECK_NULL);
+     if (defined_k == NULL) {
+       THROW_MSG_0(vmSymbols::java_lang_Error(), "Failure to define a hidden class");
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 1da6661dd3e..619e3988e3a 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -24,11 +24,14 @@
+ 
+ #include "precompiled.hpp"
+ #include "aot/aotLoader.hpp"
+#include "classfile/classFileParser.hpp"
+ #include "classfile/classFileStream.hpp"
+ #include "classfile/metadataOnStackMark.hpp"
+ #include "classfile/systemDictionary.hpp"
+ #include "classfile/verifier.hpp"
+ #include "classfile/dictionary.hpp"
+#include "classfile/classLoaderDataGraph.hpp"
+#include "interpreter/linkResolver.hpp"
+ #include "interpreter/oopMapCache.hpp"
+ #include "interpreter/rewriter.hpp"
+ #include "logging/logStream.hpp"
+@@ -37,17 +40,22 @@
+ #include "memory/resourceArea.hpp"
+ #include "memory/iterator.inline.hpp"
+ #include "oops/fieldStreams.hpp"
+#include "oops/fieldStreams.inline.hpp"
+ #include "oops/klassVtable.hpp"
+ #include "oops/oop.inline.hpp"
+ #include "oops/constantPool.inline.hpp"
+#include "oops/metadata.hpp"
+#include "oops/methodData.hpp"
+ #include "prims/jvmtiImpl.hpp"
+ #include "prims/jvmtiClassFileReconstituter.hpp"
+ #include "prims/jvmtiEnhancedRedefineClasses.hpp"
+ #include "prims/methodComparator.hpp"
+ #include "prims/resolvedMethodTable.hpp"
+#include "prims/methodHandles.hpp"
+ #include "runtime/deoptimization.hpp"
+ #include "runtime/jniHandles.inline.hpp"
+ #include "runtime/relocator.hpp"
+#include "runtime/fieldDescriptor.hpp"
+ #include "runtime/fieldDescriptor.inline.hpp"
+ #include "utilities/bitMap.inline.hpp"
+ #include "prims/jvmtiThreadState.inline.hpp"
+@@ -55,6 +63,8 @@
+ #include "oops/constantPool.inline.hpp"
+ #include "gc/g1/g1CollectedHeap.hpp"
+ #include "gc/shared/dcevmSharedGC.hpp"
+#include "gc/shared/scavengableNMethods.hpp"
+#include "ci/ciObjectFactory.hpp"
+ 
+ Array<Method*>* VM_EnhancedRedefineClasses::_old_methods = NULL;
+ Array<Method*>* VM_EnhancedRedefineClasses::_new_methods = NULL;
+@@ -66,6 +76,7 @@ int         VM_EnhancedRedefineClasses::_matching_methods_length = 0;
+ int         VM_EnhancedRedefineClasses::_deleted_methods_length  = 0;
+ int         VM_EnhancedRedefineClasses::_added_methods_length    = 0;
+ Klass*      VM_EnhancedRedefineClasses::_the_class_oop = NULL;
+u8        VM_EnhancedRedefineClasses::_id_counter = 0;
+ 
+ //
+ // Create new instance of enhanced class redefiner.
+@@ -88,6 +99,7 @@ VM_EnhancedRedefineClasses::VM_EnhancedRedefineClasses(jint class_count, const j
+   _class_load_kind = class_load_kind;
+   _res = JVMTI_ERROR_NONE;
+   _any_class_has_resolved_methods = false;
+  _id = next_id();
+ }
+ 
+ static inline InstanceKlass* get_ik(jclass def) {
+@@ -211,9 +223,7 @@ class FieldCopier : public FieldClosure {
+ 
+ // TODO: review...
+ void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
+-  if (!nm->on_scavenge_root_list()) {
+-    CodeCache::add_scavenge_root_nmethod(nm);
+-  }
+  ScavengableNMethods::register_nmethod(nm);
+ }
+ 
+ void VM_EnhancedRedefineClasses::unregister_nmethod_g1(nmethod* nm) {
+@@ -414,7 +424,7 @@ public:
+       _tmp_obj_size = size;
+       _tmp_obj = (oop)resource_allocate_bytes(size * HeapWordSize);
+     }
+-    Copy::aligned_disjoint_words((HeapWord*)o, (HeapWord*)_tmp_obj, size);
+    Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(o), cast_from_oop<HeapWord*>(_tmp_obj), size);
+   }
+ 
+   virtual void do_object(oop obj) {
+@@ -505,9 +515,6 @@ void VM_EnhancedRedefineClasses::doit() {
+     ClearCpoolCacheAndUnpatch clear_cpool_cache(thread);
+     ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
+ 
+-
+-    // SystemDictionary::methods_do(fix_invoke_method);
+-
+   // JSR-292 support
+   if (_any_class_has_resolved_methods) {
+     bool trace_name_printed = false;
+@@ -564,8 +571,8 @@ void VM_EnhancedRedefineClasses::doit() {
+     InstanceKlass* old = InstanceKlass::cast(cur->old_version());
+ 
+     // Swap marks to have same hashcodes
+-    markOop cur_mark = cur->prototype_header();
+-    markOop old_mark = old->prototype_header();
+    markWord cur_mark = cur->prototype_header();
+    markWord old_mark = old->prototype_header();
+     cur->set_prototype_header(old_mark);
+     old->set_prototype_header(cur_mark);
+ 
+@@ -579,14 +586,14 @@ void VM_EnhancedRedefineClasses::doit() {
+       // Revert pool holder for old version of klass (it was updated by one of ours closure!)
+     old->constants()->set_pool_holder(old);
+ 
+-    Klass* array_klasses = old->array_klasses();
+    ObjArrayKlass* array_klasses = old->array_klasses();
+     if (array_klasses != NULL) {
+       assert(cur->array_klasses() == NULL, "just checking");
+ 
+       // Transfer the array classes, otherwise we might get cast exceptions when casting array types.
+       // Also, set array klasses element klass.
+       cur->set_array_klasses(array_klasses);
+-      ObjArrayKlass::cast(array_klasses)->set_element_klass(cur);
+      array_klasses->set_element_klass(cur);
+       java_lang_Class::release_set_array_klass(cur->java_mirror(), array_klasses);
+       java_lang_Class::set_component_mirror(array_klasses->java_mirror(), cur->java_mirror());
+     }
+@@ -641,11 +648,15 @@ void VM_EnhancedRedefineClasses::doit() {
+   //ClassLoaderDataGraph::classes_do(&clean_weak_method_links);
+ 
+   // Disable any dependent concurrent compilations
+-  SystemDictionary::notice_modification();
+  // SystemDictionary::notice_modification();
+
+  JvmtiExport::increment_redefinition_count();
+ 
+   // Set flag indicating that some invariants are no longer true.
+   // See jvmtiExport.hpp for detailed explanation.
+-  JvmtiExport::set_has_redefined_a_class();
+
+  // dcevm15: handled by _redefinition_count
+  // JvmtiExport::set_has_redefined_a_class();
+ 
+ #ifdef PRODUCT
+   if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
+@@ -718,7 +729,7 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
+   }
+ 
+   // Cannot redefine or retransform an anonymous class.
+-  if (InstanceKlass::cast(k)->is_anonymous()) {
+  if (InstanceKlass::cast(k)->is_unsafe_anonymous()) {
+     return false;
+   }
+   return true;
+@@ -804,22 +815,30 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+ 
+     InstanceKlass* k;
+ 
+-    if (InstanceKlass::cast(the_class)->is_anonymous()) {
+-      const InstanceKlass* host_class = the_class->host_klass();
+    if (InstanceKlass::cast(the_class)->is_unsafe_anonymous()) {
+      const InstanceKlass* host_class = the_class->unsafe_anonymous_host();
+ 
+       // Make sure it's the real host class, not another anonymous class.
+-      while (host_class != NULL && host_class->is_anonymous()) {
+-        host_class = host_class->host_klass();
+      while (host_class != NULL && host_class->is_unsafe_anonymous()) {
+        host_class = host_class->unsafe_anonymous_host();
+       }
+ 
+      ClassLoadInfo cl_info(protection_domain,
+                            host_class,
+                            NULL,     // dynamic_nest_host
+                            NULL,     // cp_patches
+                            Handle(), // classData
+                            false,    // is_hidden
+                            false,    // is_strong_hidden
+                            true);    // FIXME: check if correct. can_access_vm_annotations
+
+       k = SystemDictionary::parse_stream(the_class_sym,
+                                          the_class_loader,
+-                                         protection_domain,
+                                          &st,
+-                                         host_class,
+                                         cl_info,
+                                          the_class,
+-                                         NULL,
+                                          THREAD);
+
+       k->class_loader_data()->exchange_holders(the_class->class_loader_data());
+       the_class->class_loader_data()->inc_keep_alive();
+     } else {
+@@ -966,7 +985,7 @@ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_
+   // Check interfaces
+ 
+   // Interfaces removed?
+-  Array<Klass*>* old_interfaces = the_class->transitive_interfaces();
+  Array<InstanceKlass*>* old_interfaces = the_class->transitive_interfaces();
+   for (i = 0; i < old_interfaces->length(); i++) {
+     InstanceKlass* old_interface = InstanceKlass::cast(old_interfaces->at(i));
+     if (!new_class->implements_interface_any_version(old_interface)) {
+@@ -976,7 +995,7 @@ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_
+   }
+ 
+   // Interfaces added?
+-  Array<Klass*>* new_interfaces = new_class->transitive_interfaces();
+  Array<InstanceKlass*>* new_interfaces = new_class->transitive_interfaces();
+   for (i = 0; i<new_interfaces->length(); i++) {
+     if (!the_class->implements_interface_any_version(new_interfaces->at(i))) {
+       result = result | Klass::ModifyClass;
+@@ -1389,8 +1408,8 @@ void VM_EnhancedRedefineClasses::rollback() {
+ // Rewrite faster byte-codes back to their slower equivalent. Undoes rewriting happening in templateTable_xxx.cpp
+ // The reason is that once we zero cpool caches, we need to re-resolve all entries again. Faster bytecodes do not
+ // do that, they assume that cache entry is resolved already.
+-void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
+-  RawBytecodeStream bcs(method);
+void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method, TRAPS) {
+  RawBytecodeStream bcs(methodHandle(THREAD, method));
+   Bytecodes::Code code;
+   Bytecodes::Code java_code;
+   while (!bcs.is_last_bytecode()) {
+@@ -1454,11 +1473,11 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
+   HandleMark hm(_thread);
+   InstanceKlass *ik = InstanceKlass::cast(k);
+ 
+-  constantPoolHandle other_cp = constantPoolHandle(ik->constants());
+  constantPoolHandle other_cp = constantPoolHandle(_thread, ik->constants());
+ 
+   // Update host klass of anonymous classes (for example, produced by lambdas) to newest version.
+-  if (ik->is_anonymous() && ik->host_klass()->new_version() != NULL) {
+-    ik->set_host_klass(InstanceKlass::cast(ik->host_klass()->newest_version()));
+  if (ik->is_unsafe_anonymous() && ik->unsafe_anonymous_host()->new_version() != NULL) {
+    ik->set_unsafe_anonymous_host(InstanceKlass::cast(ik->unsafe_anonymous_host()->newest_version()));
+   }
+ 
+   // Update implementor if there is only one, in this case implementor() can reference old class
+@@ -1492,7 +1511,18 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
+ 
+   // If bytecode rewriting is enabled, we also need to unpatch bytecode to force resolution of zeroed entries
+   if (RewriteBytecodes) {
+-    ik->methods_do(unpatch_bytecode);
+    ik->methods_do(unpatch_bytecode, _thread);
+  }
+}
+
+u8 VM_EnhancedRedefineClasses::next_id() {
+  while (true) {
+    u8 id = _id_counter;
+    u8 next_id = id + 1;
+    u8 result = Atomic::cmpxchg(&_id_counter, id, next_id);
+    if (result == id) {
+      return next_id;
+    }
+   }
+ }
+ 
+@@ -1512,31 +1542,8 @@ void VM_EnhancedRedefineClasses::MethodDataCleaner::do_klass(Klass* k) {
+   }
+ }
+ 
+-void VM_EnhancedRedefineClasses::fix_invoke_method(Method* method) {
+-
+-  constantPoolHandle other_cp = constantPoolHandle(method->constants());
+-
+-  for (int i = 0; i < other_cp->length(); i++) {
+-    if (other_cp->tag_at(i).is_klass()) {
+-      Klass* klass = other_cp->resolved_klass_at(i);
+-      if (klass->new_version() != NULL) {
+-        // Constant pool entry points to redefined class -- update to the new version
+-        other_cp->klass_at_put(i, klass->newest_version());
+-      }
+-      assert(other_cp->resolved_klass_at(i)->new_version() == NULL, "Must be new klass!");
+-    }
+-  }
+-
+-  ConstantPoolCache* cp_cache = other_cp->cache();
+-  if (cp_cache != NULL) {
+-    cp_cache->clear_entries();
+-  }
+-
+-}
+-
+ 
+-
+-void VM_EnhancedRedefineClasses::update_jmethod_ids() {
+void VM_EnhancedRedefineClasses::update_jmethod_ids(TRAPS) {
+   for (int j = 0; j < _matching_methods_length; ++j) {
+     Method* old_method = _matching_old_methods[j];
+     jmethodID jmid = old_method->find_jmethod_id_or_null();
+@@ -1547,10 +1554,10 @@ void VM_EnhancedRedefineClasses::update_jmethod_ids() {
+ 
+     if (jmid != NULL) {
+       // There is a jmethodID, change it to point to the new method
+-      methodHandle new_method_h(_matching_new_methods[j]);
+      methodHandle new_method_h(THREAD, _matching_new_methods[j]);
+ 
+       if (old_method->new_version() == NULL) {
+-        methodHandle old_method_h(_matching_old_methods[j]);
+        methodHandle old_method_h(THREAD, _matching_old_methods[j]);
+         jmethodID new_jmethod_id = Method::make_jmethod_id(old_method_h->method_holder()->class_loader_data(), old_method_h());
+         bool result = InstanceKlass::cast(old_method_h->method_holder())->update_jmethod_id(old_method_h(), new_jmethod_id);
+       } else {
+@@ -1887,7 +1894,7 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
+ 
+   // track number of methods that are EMCP for add_previous_version() call below
+   check_methods_and_mark_as_obsolete();
+-  update_jmethod_ids();
+  update_jmethod_ids(THREAD);
+ 
+   _any_class_has_resolved_methods = the_class->has_resolved_methods() || _any_class_has_resolved_methods;
+ 
+@@ -2119,12 +2126,12 @@ jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
+ 
+     Handle protection_domain(THREAD, klass->protection_domain());
+ 
+    ClassLoadInfo cl_info(protection_domain);
+
+     ClassFileParser parser(&st,
+                            klass->name(),
+                            klass->class_loader_data(),
+-                           protection_domain,
+-                           NULL, // host_klass
+-                           NULL, // cp_patches
+                           &cl_info,
+                            ClassFileParser::INTERNAL, // publicity level
+                            true,
+                            THREAD);
+@@ -2134,7 +2141,7 @@ jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
+       links.append(KlassPair(super_klass, klass));
+     }
+ 
+-    Array<Klass*>* local_interfaces = parser.local_interfaces();
+    Array<InstanceKlass*>* local_interfaces = parser.local_interfaces();
+     for (int j = 0; j < local_interfaces->length(); j++) {
+       Klass* iface = local_interfaces->at(j);
+       if (iface != NULL && _affected_klasses->contains(iface)) {
+@@ -2157,7 +2164,7 @@ jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
+         links.append(KlassPair(super_klass, klass));
+       }
+ 
+-      Array<Klass*>* local_interfaces = klass->local_interfaces();
+      Array<InstanceKlass*>* local_interfaces = klass->local_interfaces();
+       for (int j = 0; j < local_interfaces->length(); j++) {
+         Klass* interfaceKlass = local_interfaces->at(j);
+         if (_affected_klasses->contains(interfaceKlass)) {
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index 4c0412d343d..0066088b3b0 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -32,7 +32,7 @@
+ #include "memory/resourceArea.hpp"
+ #include "oops/objArrayKlass.hpp"
+ #include "oops/objArrayOop.hpp"
+-#include "gc/shared/vmGCOperations.hpp"
+#include "gc/shared/gcVMOperations.hpp"
+ #include "../../../java.base/unix/native/include/jni_md.h"
+ 
+ //
+@@ -59,6 +59,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   static int             _deleted_methods_length;
+   static int             _added_methods_length;
+   static Klass*          _the_class_oop;
+  static u8              _id_counter;
+ 
+   // The instance fields are used to pass information from
+   // doit_prologue() to doit() and doit_epilogue().
+@@ -91,6 +92,9 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   elapsedTimer  _timer_heap_iterate;
+   elapsedTimer  _timer_heap_full_gc;
+ 
+  // Redefinition id used by JFR
+  u8 _id;
+
+   // These routines are roughly in call order unless otherwise noted.
+ 
+   // Load and link new classes (either redefined or affected by redefinition - subclass, ...)
+@@ -118,15 +122,14 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   static void mark_as_scavengable(nmethod* nm);
+   static void unregister_nmethod_g1(nmethod* nm);
+   static void register_nmethod_g1(nmethod* nm);
+-  static void unpatch_bytecode(Method* method);
+-  static void fix_invoke_method(Method* method);
+  static void unpatch_bytecode(Method* method, TRAPS);
+ 
+   // Figure out which new methods match old methods in name and signature,
+   // which methods have been added, and which are no longer present
+   void compute_added_deleted_matching_methods();
+ 
+   // Change jmethodIDs to point to the new methods
+-  void update_jmethod_ids();
+  void update_jmethod_ids(TRAPS);
+ 
+   // marking methods as old and/or obsolete
+   void check_methods_and_mark_as_obsolete();
+@@ -141,6 +144,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+ 
+   void flush_dependent_code(InstanceKlass* k_h, TRAPS);
+ 
+  u8 next_id();
+
+   static void check_class(InstanceKlass* k_oop, TRAPS);
+ 
+   static void dump_methods();
+@@ -181,6 +186,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+ 
+   bool allow_nested_vm_operations() const        { return true; }
+   jvmtiError check_error()                       { return _res; }
+  u8 id()                                        { return _id; }
+ 
+   // Modifiable test must be shared between IsModifiableClass query
+   // and redefine implementation
+diff --git a/src/hotspot/share/prims/jvmtiEnv.cpp b/src/hotspot/share/prims/jvmtiEnv.cpp
+index b6838ac034d..fba0f48abd7 100644
+--- a/src/hotspot/share/prims/jvmtiEnv.cpp
+++ b/src/hotspot/share/prims/jvmtiEnv.cpp
+@@ -456,20 +456,23 @@ JvmtiEnv::RetransformClasses(jint class_count, const jclass* classes) {
+ 
+   EventRetransformClasses event;
+   jvmtiError error;
+  u8 op_id;
+ 
+   if (AllowEnhancedClassRedefinition) {
+     MutexLocker sd_mutex(EnhancedRedefineClasses_lock);
+     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_retransform);
+     VMThread::execute(&op);
+    op_id = op.id();
+     error = (op.check_error());
+   } else {
+     VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_retransform);
+     VMThread::execute(&op);
+    op_id = op.id();
+     error = op.check_error();
+   }
+   if (error == JVMTI_ERROR_NONE) {
+     event.set_classCount(class_count);
+-    event.set_redefinitionId(op.id());
+    event.set_redefinitionId(op_id);
+     event.commit();
+   }
+   return error;
+@@ -484,19 +487,23 @@ JvmtiEnv::RedefineClasses(jint class_count, const jvmtiClassDefinition* class_de
+   EventRedefineClasses event;
+   jvmtiError error;
+ 
+  u8 op_id;
+
+   if (AllowEnhancedClassRedefinition) {
+     MutexLocker sd_mutex(EnhancedRedefineClasses_lock);
+     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
+     VMThread::execute(&op);
+    op_id = op.id();
+     error = (op.check_error());
+   } else {
+     VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
+     VMThread::execute(&op);
+    op_id = op.id();
+     error = op.check_error();
+   }
+   if (error == JVMTI_ERROR_NONE) {
+     event.set_classCount(class_count);
+-    event.set_redefinitionId(op.id());
+    event.set_redefinitionId(op_id);
+     event.commit();
+   }
+   return error;
+diff --git a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
+index a7840848e10..346eac7c431 100644
+--- a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
+@@ -1271,6 +1271,7 @@ jvmtiError VM_RedefineClasses::load_new_class_versions(TRAPS) {
+                                                       the_class_loader,
+                                                       &st,
+                                                       cl_info,
+                                                      NULL,
+                                                       THREAD);
+     // Clear class_being_redefined just to be sure.
+     state->clear_class_being_redefined();
+diff --git a/src/hotspot/share/prims/methodHandles.hpp b/src/hotspot/share/prims/methodHandles.hpp
+index 54f36202a5f..917d31efd77 100644
+--- a/src/hotspot/share/prims/methodHandles.hpp
+++ b/src/hotspot/share/prims/methodHandles.hpp
+@@ -180,6 +180,9 @@ public:
+     assert(ref_kind_is_valid(ref_kind), "");
+     return (ref_kind & 1) != 0;
+   }
+  static bool ref_kind_is_static(int ref_kind) {
+    return !ref_kind_has_receiver(ref_kind) && (ref_kind != JVM_REF_newInvokeSpecial);
+  }
+ 
+   static int ref_kind_to_flags(int ref_kind);
+ 
+diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
+index d05a2893498..3a92b8869dc 100644
+--- a/src/hotspot/share/runtime/arguments.cpp
+++ b/src/hotspot/share/runtime/arguments.cpp
+@@ -2128,13 +2128,15 @@ bool Arguments::check_gc_consistency() {
+   // of collectors.
+   uint i = 0;
+   if (UseSerialGC)                       i++;
+-  if (UseConcMarkSweepGC)                i++;
+-  if (UseParallelGC || UseParallelOldGC) i++;
+  if (UseParallelGC)                     i++;
+   if (UseG1GC)                           i++;
+  if (UseEpsilonGC)                      i++;
+  if (UseZGC)                            i++;
+  if (UseShenandoahGC)                   i++;
+   if (AllowEnhancedClassRedefinition) {
+     // Must use serial GC. This limitation applies because the instance size changing GC modifications
+     // are only built into the mark and compact algorithm.
+-    if ((!UseSerialGC && !UseG1GC) && i >= 1) {
+    if (!UseSerialGC && !UseG1GC && i >= 1) {
+       jio_fprintf(defaultStream::error_stream(),
+                   "Must use the Serial or G1 GC with enhanced class redefinition.\n");
+       return false;
+@@ -4494,18 +4496,18 @@ void Arguments::setup_hotswap_agent() {
+ 
+   // TODO: open it only for org.hotswap.agent module
+   // Use to access java.lang.reflect.Proxy/proxyCache
+-  create_numbered_property("jdk.module.addopens", "java.base/java.lang=ALL-UNNAMED", addopens_count++);
+  create_numbered_module_property("jdk.module.addopens", "java.base/java.lang=ALL-UNNAMED", addopens_count++);
+   // Class of  field java.lang.reflect.Proxy/proxyCache
+-  create_numbered_property("jdk.module.addopens", "java.base/jdk.internal.loader=ALL-UNNAMED", addopens_count++);
+  create_numbered_module_property("jdk.module.addopens", "java.base/jdk.internal.loader=ALL-UNNAMED", addopens_count++);
+   // Use to access java.io.Reader, java.io.InputStream, java.io.FileInputStream
+-  create_numbered_property("jdk.module.addopens", "java.base/java.io=ALL-UNNAMED", addopens_count++);
+  create_numbered_module_property("jdk.module.addopens", "java.base/java.io=ALL-UNNAMED", addopens_count++);
+   // java.beans.Introspector access
+-  create_numbered_property("jdk.module.addopens", "java.desktop/java.beans=ALL-UNNAMED", addopens_count++);
+  create_numbered_module_property("jdk.module.addopens", "java.desktop/java.beans=ALL-UNNAMED", addopens_count++);
+   // java.beans.Introspector access
+-  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans=ALL-UNNAMED", addopens_count++);
+  create_numbered_module_property("jdk.module.addopens", "java.desktop/com.sun.beans=ALL-UNNAMED", addopens_count++);
+   // com.sun.beans.introspect.ClassInfo access
+-  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans.introspect=ALL-UNNAMED", addopens_count++);
+  create_numbered_module_property("jdk.module.addopens", "java.desktop/com.sun.beans.introspect=ALL-UNNAMED", addopens_count++);
+   // com.sun.beans.introspect.util.Cache access
+-  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans.util=ALL-UNNAMED", addopens_count++);
+  create_numbered_module_property("jdk.module.addopens", "java.desktop/com.sun.beans.util=ALL-UNNAMED", addopens_count++);
+ 
+ }
+diff --git a/src/hotspot/share/runtime/mutexLocker.cpp b/src/hotspot/share/runtime/mutexLocker.cpp
+index 6f982072909..14a3ed730fe 100644
+--- a/src/hotspot/share/runtime/mutexLocker.cpp
+++ b/src/hotspot/share/runtime/mutexLocker.cpp
+@@ -287,7 +287,7 @@ void mutex_init() {
+   def(InitCompleted_lock           , PaddedMonitor, leaf,        true,  _safepoint_check_never);
+   def(VtableStubs_lock             , PaddedMutex  , nonleaf,     true,  _safepoint_check_never);
+   def(Notify_lock                  , PaddedMonitor, nonleaf,     true,  _safepoint_check_always);
+-  def(EnhancedRedefineClasses_lock , PaddedMutex  , nonleaf+7,   false, Monitor::_safepoint_check_always);     // for ensuring that class redefinition is not done in parallel
+  def(EnhancedRedefineClasses_lock , PaddedMutex  , nonleaf+7,   false, _safepoint_check_always);     // for ensuring that class redefinition is not done in parallel
+   def(JNICritical_lock             , PaddedMonitor, nonleaf,     true,  _safepoint_check_always); // used for JNI critical regions
+   def(AdapterHandlerLibrary_lock   , PaddedMutex  , nonleaf,     true,  _safepoint_check_always);
+ 
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0020-dcevm15-G1-fixes.patch
+++ b/jb/project/tools/patches/dcevm/0020-dcevm15-G1-fixes.patch
@@ -0,0 +1,25 @@
+From 336cab4f72c6e642e3077ea8d1a4860de33f5a4d Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Tue, 17 Nov 2020 17:40:24 +0100
+Subject: [PATCH 20/34] dcevm15 - G1 fixes
+
+---
+ src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+index 2f06b9617e4..476728a5d26 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+++ b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+@@ -240,7 +240,7 @@ void G1FullGCPrepareTask::prepare_serial_compaction_dcevm() {
+ 
+     // collect remaining, not forwarded rescued oops using serial compact point
+     while (cp->last_rescued_oop() < cp->rescued_oops()->length()) {
+-      HeapRegion* hr = G1CollectedHeap::heap()->new_region(HeapRegion::GrainBytes / HeapWordSize, false, true);
+      HeapRegion* hr = G1CollectedHeap::heap()->new_region(HeapRegion::GrainBytes / HeapWordSize, HeapRegionType::Eden, true, G1NUMA::AnyNodeIndex);
+       if (hr == NULL) {
+         vm_exit_out_of_memory(0, OOM_MMAP_ERROR, "G1 - not enough of free regions after redefinition.");
+       }
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0021-dcevm15-Fix-flush-dependent-code.patch
+++ b/jb/project/tools/patches/dcevm/0021-dcevm15-Fix-flush-dependent-code.patch
@@ -0,0 +1,133 @@
+From cea4e2cca3c37233c728be7235f8f9d8be136cb5 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Tue, 17 Nov 2020 18:52:57 +0100
+Subject: [PATCH 21/34] dcevm15 - Fix flush dependent code
+
+---
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 57 +++++++------------
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |  4 +-
+ 2 files changed, 25 insertions(+), 36 deletions(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 619e3988e3a..efaf11e1666 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -508,7 +508,7 @@ void VM_EnhancedRedefineClasses::doit() {
+ 
+   // Deoptimize all compiled code that depends on this class (do only once, because it clears whole cache)
+   // if (_max_redefinition_flags > Klass::ModifyClass) {
+-    flush_dependent_code(NULL, thread);
+    flush_dependent_code(thread);
+   // }
+ 
+     // Adjust constantpool caches for all classes that reference methods of the evolved class.
+@@ -647,17 +647,8 @@ void VM_EnhancedRedefineClasses::doit() {
+   //MethodDataCleaner clean_weak_method_links;
+   //ClassLoaderDataGraph::classes_do(&clean_weak_method_links);
+ 
+-  // Disable any dependent concurrent compilations
+-  // SystemDictionary::notice_modification();
+-
+   JvmtiExport::increment_redefinition_count();
+ 
+-  // Set flag indicating that some invariants are no longer true.
+-  // See jvmtiExport.hpp for detailed explanation.
+-
+-  // dcevm15: handled by _redefinition_count
+-  // JvmtiExport::set_has_redefined_a_class();
+-
+ #ifdef PRODUCT
+   if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
+ #endif
+@@ -1746,6 +1737,18 @@ void VM_EnhancedRedefineClasses::transfer_old_native_function_registrations(Inst
+   transfer.transfer_registrations(_matching_old_methods, _matching_methods_length);
+ }
+ 
+// First step is to walk the code cache for each class redefined and mark
+// dependent methods.  Wait until all classes are processed to deoptimize everything.
+void VM_EnhancedRedefineClasses::mark_dependent_code(InstanceKlass* ik) {
+  assert_locked_or_safepoint(Compile_lock);
+
+  // All dependencies have been recorded from startup or this is a second or
+  // subsequent use of RedefineClasses
+  if (0 && JvmtiExport::all_dependencies_are_recorded()) {
+    CodeCache::mark_for_evol_deoptimization(ik);
+  }
+}
+
+ // DCEVM - it always deoptimizes everything! (because it is very difficult to find only correct dependencies)
+ // Deoptimize all compiled code that depends on this class.
+ //
+@@ -1762,33 +1765,21 @@ void VM_EnhancedRedefineClasses::transfer_old_native_function_registrations(Inst
+ // subsequent calls to RedefineClasses need only throw away code
+ // that depends on the class.
+ //
+-void VM_EnhancedRedefineClasses::flush_dependent_code(InstanceKlass* k_h, TRAPS) {
+void VM_EnhancedRedefineClasses::flush_dependent_code(TRAPS) {
+   assert_locked_or_safepoint(Compile_lock);
+ 
+   // All dependencies have been recorded from startup or this is a second or
+   // subsequent use of RedefineClasses
+   // FIXME: for now, deoptimize all!
+-  if (0 && k_h != NULL && JvmtiExport::all_dependencies_are_recorded()) {
+-    CodeCache::flush_evol_dependents_on(k_h);
+-    Klass* superCl = k_h->super();
+-    // Deoptimize super classes since redefined class can has a new method override
+-    while (superCl != NULL && !superCl->is_redefining()) {
+-      CodeCache::flush_evol_dependents_on(InstanceKlass::cast(superCl));
+-      superCl = superCl->super();
+  if (0 && JvmtiExport::all_dependencies_are_recorded()) {
+    int deopt = CodeCache::mark_dependents_for_evol_deoptimization();
+    log_debug(redefine, class, nmethod)("Marked %d dependent nmethods for deopt", deopt);
+    if (deopt != 0) {
+      CodeCache::flush_evol_dependents();
+     }
+   } else {
+-    CodeCache::mark_all_nmethods_for_deoptimization();
+-
+-    ResourceMark rm(THREAD);
+-    DeoptimizationMarker dm;
+-
+-    // Deoptimize all activations depending on marked nmethods
+-    Deoptimization::deoptimize_dependents();
+-
+-    // Make the dependent methods not entrant
+-    CodeCache::make_marked_nmethods_not_entrant();
+-
+-    // From now on we know that the dependency information is complete
+    CodeCache::mark_all_nmethods_for_evol_deoptimization();
+    CodeCache::flush_evol_dependents();
+     JvmtiExport::set_all_dependencies_are_recorded(true);
+   }
+ }
+@@ -1881,11 +1872,7 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
+   JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints();
+   jvmti_breakpoints.clearall_in_class_at_safepoint(the_class);
+ 
+-  // DCEVM Deoptimization is always for whole java world, call only once after all classes are redefined
+-  // Deoptimize all compiled code that depends on this class
+-//  if (_max_redefinition_flags <= Klass::ModifyClass) {
+-//    flush_dependent_code(the_class, THREAD);
+-//  }
+  mark_dependent_code(the_class);
+ 
+   _old_methods = the_class->methods();
+   _new_methods = new_class->methods();
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index 0066088b3b0..bd5e7d153be 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -142,7 +142,9 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   // and in all direct and indirect subclasses.
+   void increment_class_counter(InstanceKlass *ik, TRAPS);
+ 
+-  void flush_dependent_code(InstanceKlass* k_h, TRAPS);
+  void mark_dependent_code(InstanceKlass* ik);
+
+  void flush_dependent_code(TRAPS);
+ 
+   u8 next_id();
+ 
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0022-dcevm15-fix-ResolvedMethodTable.patch
+++ b/jb/project/tools/patches/dcevm/0022-dcevm15-fix-ResolvedMethodTable.patch
@@ -0,0 +1,211 @@
+From 4f88dcec830d39452f69d1117729469fdb768a8f Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 22 Nov 2020 12:05:26 +0100
+Subject: [PATCH 22/34] dcevm15 - fix ResolvedMethodTable
+
+---
+ src/hotspot/share/classfile/javaClasses.cpp   |   5 -
+ src/hotspot/share/classfile/javaClasses.hpp   |   1 -
+ .../share/prims/resolvedMethodTable.cpp       | 139 +++++++++++-------
+ 3 files changed, 84 insertions(+), 61 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/javaClasses.cpp b/src/hotspot/share/classfile/javaClasses.cpp
+index 9b086a241f7..9a627786d0f 100644
+--- a/src/hotspot/share/classfile/javaClasses.cpp
+++ b/src/hotspot/share/classfile/javaClasses.cpp
+@@ -3996,11 +3996,6 @@ void java_lang_invoke_ResolvedMethodName::set_vmholder(oop resolved_method, oop
+   resolved_method->obj_field_put(_vmholder_offset, holder);
+ }
+ 
+-void java_lang_invoke_ResolvedMethodName::set_vmholder_offset(oop resolved_method, Method* m) {
+-  assert(is_instance(resolved_method), "wrong type");
+-  resolved_method->obj_field_put(_vmholder_offset, m->method_holder()->java_mirror());
+-}
+-
+ oop java_lang_invoke_ResolvedMethodName::find_resolved_method(const methodHandle& m, TRAPS) {
+   const Method* method = m();
+ 
+diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
+index 9abf2e1d105..8f5993b7225 100644
+--- a/src/hotspot/share/classfile/javaClasses.hpp
+++ b/src/hotspot/share/classfile/javaClasses.hpp
+@@ -1107,7 +1107,6 @@ class java_lang_invoke_ResolvedMethodName : AllStatic {
+ 
+   static Method* vmtarget(oop resolved_method);
+   static void set_vmtarget(oop resolved_method, Method* method);
+-  static void set_vmholder_offset(oop resolved_method, Method* method);
+ 
+   static void set_vmholder(oop resolved_method, oop holder);
+ 
+diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
+index eb9fcda44f3..d0f1667b967 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -375,6 +375,67 @@ public:
+   }
+ };
+ 
+class AdjustMethodEntriesDcevm : public StackObj {
+  bool* _trace_name_printed;
+  GrowableArray<oop>* _oops_to_add;
+public:
+  AdjustMethodEntriesDcevm(GrowableArray<oop>* oops_to_add, bool* trace_name_printed) : _trace_name_printed(trace_name_printed), _oops_to_add(oops_to_add) {};
+  bool operator()(WeakHandle<vm_resolved_method_table_data>* entry) {
+    oop mem_name = entry->peek();
+    if (mem_name == NULL) {
+      // Removed
+      return true;
+    }
+
+    Method* old_method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
+
+    if (old_method->is_old()) {
+
+      InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
+      Method* newer_method;
+
+      // Method* new_method;
+      if (old_method->is_deleted()) {
+        newer_method = Universe::throw_no_such_method_error();
+      } else {
+        newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
+
+        log_debug(redefine, class, update)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
+
+        assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
+        assert(newer_method != NULL, "method_with_idnum() should not be NULL");
+        assert(old_method != newer_method, "sanity check");
+
+        Thread* thread = Thread::current();
+        ResolvedMethodTableLookup lookup(thread, method_hash(newer_method), newer_method);
+        ResolvedMethodGet rmg(thread, newer_method);
+
+        if (_local_table->get(thread, lookup, rmg)) {
+          // old method was already adjusted if new method exists in _the_table
+            return true;
+        }
+      }
+
+      java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, newer_method);
+      java_lang_invoke_ResolvedMethodName::set_vmholder(mem_name, newer_method->method_holder()->java_mirror());
+
+      newer_klass->set_has_resolved_methods();
+      _oops_to_add->append(mem_name);
+
+      ResourceMark rm;
+      if (!(*_trace_name_printed)) {
+        log_debug(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
+         *_trace_name_printed = true;
+      }
+      log_debug(redefine, class, update, constantpool)
+        ("ResolvedMethod method update: %s(%s)",
+         newer_method->name()->as_C_string(), newer_method->signature()->as_C_string());
+    }
+
+    return true;
+  }
+};
+
+ // It is called at safepoint only for RedefineClasses
+ void ResolvedMethodTable::adjust_method_entries(bool * trace_name_printed) {
+   assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
+@@ -382,73 +443,41 @@ void ResolvedMethodTable::adjust_method_entries(bool * trace_name_printed) {
+   AdjustMethodEntries adjust(trace_name_printed);
+   _local_table->do_safepoint_scan(adjust);
+ }
+-#endif // INCLUDE_JVMTI
+ 
+-// (DCEVM) It is called at safepoint only for RedefineClasses
+// It is called at safepoint only for RedefineClasses
+ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed) {
+   assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
+   // For each entry in RMT, change to new method
+-  GrowableArray<oop>* oops_to_add = new GrowableArray<oop>();
+-
+-  for (int i = 0; i < _the_table->table_size(); ++i) {
+-    for (ResolvedMethodEntry* entry = _the_table->bucket(i);
+-         entry != NULL;
+-         entry = entry->next()) {
+-
+-      oop mem_name = entry->object_no_keepalive();
+-      // except ones removed
+-      if (mem_name == NULL) {
+-        continue;
+-      }
+-      Method* old_method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
+-
+-      if (old_method->is_old()) {
+-
+-        InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
+-        Method* newer_method;
+-
+-        // Method* new_method;
+-        if (old_method->is_deleted()) {
+-          newer_method = Universe::throw_no_such_method_error();
+-        } else {
+-          newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
+-
+-          log_debug(redefine, class, update)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
+-
+-          assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
+-          assert(newer_method != NULL, "method_with_idnum() should not be NULL");
+-          assert(old_method != newer_method, "sanity check");
+-
+-          if (_the_table->lookup(newer_method) != NULL) {
+-            // old method was already adjusted if new method exists in _the_table
+-              continue;
+-          }
+-        }
+  GrowableArray<oop> oops_to_add(0);
+  AdjustMethodEntriesDcevm adjust(&oops_to_add, trace_name_printed);
+  _local_table->do_safepoint_scan(adjust);
+  Thread* thread = Thread::current();
+  for (int i = 0; i < oops_to_add.length(); i++) {
+    oop mem_name = oops_to_add.at(i);
+    Method* method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
+ 
+-        java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, newer_method);
+-        java_lang_invoke_ResolvedMethodName::set_vmholder_offset(mem_name, newer_method);
+    // The hash table takes ownership of the WeakHandle, even if it's not inserted.
+ 
+-        newer_klass->set_has_resolved_methods();
+-        oops_to_add->append(mem_name);
+    ResolvedMethodTableLookup lookup(thread, method_hash(method), method);
+    ResolvedMethodGet rmg(thread, method);
+ 
+-        ResourceMark rm;
+-        if (!(*trace_name_printed)) {
+-          log_debug(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
+-           *trace_name_printed = true;
+-        }
+-        log_debug(redefine, class, update, constantpool)
+-          ("ResolvedMethod method update: %s(%s)",
+-           newer_method->name()->as_C_string(), newer_method->signature()->as_C_string());
+    while (true) {
+      if (_local_table->get(thread, lookup, rmg)) {
+        break;
+      }
+      WeakHandle<vm_resolved_method_table_data> wh = WeakHandle<vm_resolved_method_table_data>::create(Handle(thread, mem_name));
+      // The hash table takes ownership of the WeakHandle, even if it's not inserted.
+      if (_local_table->insert(thread, lookup, wh)) {
+        log_insert(method);
+        wh.resolve();
+        break;
+       }
+-    }
+-    for (int i = 0; i < oops_to_add->length(); i++) {
+-        oop mem_name = oops_to_add->at(i);
+-        Method* method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
+-        _the_table->basic_add(method, Handle(Thread::current(), mem_name));
+     }
+   }
+ }
+ 
+#endif // INCLUDE_JVMTI
+
+ // Verification
+ class VerifyResolvedMethod : StackObj {
+  public:
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0023-dcevm15-fix-Universe-root_oops_do.patch
+++ b/jb/project/tools/patches/dcevm/0023-dcevm15-fix-Universe-root_oops_do.patch
@@ -0,0 +1,88 @@
+From 5379e56465d3d3930ec7ea91b1c64db2cdf70170 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 22 Nov 2020 12:05:50 +0100
+Subject: [PATCH 23/34] dcevm15 - fix Universe::root_oops_do
+
+---
+ src/hotspot/share/memory/universe.cpp | 38 +++++++++------------------
+ 1 file changed, 12 insertions(+), 26 deletions(-)
+
+diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
+index f6e4253b5a5..8dad437bd51 100644
+--- a/src/hotspot/share/memory/universe.cpp
+++ b/src/hotspot/share/memory/universe.cpp
+@@ -39,6 +39,7 @@
+ #include "gc/shared/gcConfig.hpp"
+ #include "gc/shared/gcLogPrecious.hpp"
+ #include "gc/shared/gcTraceTime.inline.hpp"
+#include "gc/shared/weakProcessor.hpp"
+ #include "interpreter/interpreter.hpp"
+ #include "logging/log.hpp"
+ #include "logging/logStream.hpp"
+@@ -75,6 +76,7 @@
+ #include "runtime/thread.inline.hpp"
+ #include "runtime/timerTrace.hpp"
+ #include "runtime/vmOperations.hpp"
+#include "services/management.hpp"
+ #include "services/memoryService.hpp"
+ #include "utilities/align.hpp"
+ #include "utilities/copy.hpp"
+@@ -180,45 +182,29 @@ void Universe::basic_type_classes_do(KlassClosure *closure) {
+ 
+ // FIXME: (DCEVM) This method should iterate all pointers that are not within heap objects.
+ void Universe::root_oops_do(OopClosure *oopClosure) {
+-
+-  class AlwaysTrueClosure: public BoolObjectClosure {
+-  public:
+-    void do_object(oop p) { ShouldNotReachHere(); }
+-    bool do_object_b(oop p) { return true; }
+-  };
+-  AlwaysTrueClosure always_true;
+-
+   Universe::oops_do(oopClosure);
+ //  ReferenceProcessor::oops_do(oopClosure); (tw) check why no longer there
+   JNIHandles::oops_do(oopClosure);   // Global (strong) JNI handles
+   Threads::oops_do(oopClosure, NULL);
+   ObjectSynchronizer::oops_do(oopClosure);
+-  // TODO: review, flat profiler was removed in j10
+-  // FlatProfiler::oops_do(oopClosure);
+-  JvmtiExport::oops_do(oopClosure);
+  // (DCEVM) TODO: Check if this is correct?
+  Management::oops_do(oopClosure);
+  OopStorageSet::vm_global()->oops_do(oopClosure);
+  CLDToOopClosure cld_closure(oopClosure, ClassLoaderData::_claim_none);
+  ClassLoaderDataGraph::cld_do(&cld_closure);
+ 
+   // Now adjust pointers in remaining weak roots.  (All of which should
+   // have been cleared if they pointed to non-surviving objects.)
+   // Global (weak) JNI handles
+-  JNIHandles::weak_oops_do(&always_true, oopClosure);
+  WeakProcessor::oops_do(oopClosure);
+ 
+   CodeBlobToOopClosure blobClosure(oopClosure, CodeBlobToOopClosure::FixRelocations);
+   CodeCache::blobs_do(&blobClosure);
+-  StringTable::oops_do(oopClosure);
+  AOT_ONLY(AOTLoader::oops_do(oopClosure);)
+  // StringTable::oops_do was removed in j15
+  // StringTable::oops_do(oopClosure);
+ 
+-  // (DCEVM) TODO: Check if this is correct?
+-  //CodeCache::scavenge_root_nmethods_oops_do(oopClosure);
+-  //Management::oops_do(oopClosure);
+-  //ref_processor()->weak_oops_do(&oopClosure);
+-  //PSScavenge::reference_processor()->weak_oops_do(&oopClosure);
+-
+-#if INCLUDE_AOT
+-  if (UseAOT) {
+-    AOTLoader::oops_do(oopClosure);
+-  }
+-#endif
+-  // SO_AllClasses
+-  SystemDictionary::oops_do(oopClosure);
+  // PSScavenge::reference_processor()->weak_oops_do(oopClosure);
+ }
+ 
+ void Universe::oops_do(OopClosure* f) {
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0024-Cleanup-dcevm-comments.patch
+++ b/jb/project/tools/patches/dcevm/0024-Cleanup-dcevm-comments.patch
@@ -0,0 +1,67 @@
+From c6ea68e66d37d70739f7b0ee74131322b4526a68 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 22 Nov 2020 12:03:32 +0100
+Subject: [PATCH 24/34] Cleanup dcevm comments
+
+---
+ src/hotspot/share/classfile/classLoaderDataGraph.hpp     | 2 +-
+ src/hotspot/share/classfile/systemDictionary.hpp         | 2 +-
+ src/hotspot/share/gc/shared/gcConfig.cpp                 | 2 +-
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp | 2 +-
+ 4 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.hpp b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+index f380aa3fa34..8ce94cccb47 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+++ b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+@@ -104,7 +104,7 @@ class ClassLoaderDataGraph : public AllStatic {
+ 
+   static void dictionary_classes_do(KlassClosure* klass_closure);
+ 
+-  // Enhanced class redefinition
+  // (DCEVM) Enhanced class redefinition
+   static void rollback_redefinition();
+ 
+   // VM_CounterDecay iteration support
+diff --git a/src/hotspot/share/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
+index 931e655d631..1019dbd0d04 100644
+--- a/src/hotspot/share/classfile/systemDictionary.hpp
+++ b/src/hotspot/share/classfile/systemDictionary.hpp
+@@ -455,7 +455,7 @@ public:
+   static bool is_well_known_klass(Symbol* class_name);
+ #endif
+ 
+-  // Enhanced class redefinition
+  // (DCEVM) Enhanced class redefinition
+   static void remove_from_hierarchy(InstanceKlass* k);
+   static void update_constraints_after_redefinition();
+ 
+diff --git a/src/hotspot/share/gc/shared/gcConfig.cpp b/src/hotspot/share/gc/shared/gcConfig.cpp
+index 5c1a09390f1..23fbf715378 100644
+--- a/src/hotspot/share/gc/shared/gcConfig.cpp
+++ b/src/hotspot/share/gc/shared/gcConfig.cpp
+@@ -99,7 +99,7 @@ void GCConfig::fail_if_non_included_gc_is_selected() {
+ 
+ void GCConfig::select_gc_ergonomically() {
+   if (AllowEnhancedClassRedefinition && !UseG1GC) {
+-    // Enhanced class redefinition only supports serial GC at the moment
+    // (DCEVM) Enhanced class redefinition only supports serial GC at the moment
+     FLAG_SET_ERGO(UseSerialGC, true);
+   } else if (os::is_server_class_machine()) {
+ #if INCLUDE_G1GC
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index bd5e7d153be..5de375fb888 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -78,7 +78,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   // have any entries.
+   bool _any_class_has_resolved_methods;
+ 
+-  // Enhanced class redefinition, affected klasses contain all classes which should be redefined
+  // (DCEVM) Enhanced class redefinition, affected klasses contain all classes which should be redefined
+   // either because of redefine, class hierarchy or interface change
+   GrowableArray<Klass*>*      _affected_klasses;
+ 
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0025-Fix-cpCache-in-not-AllowEnhancedClassRedefinition-mo.patch
+++ b/jb/project/tools/patches/dcevm/0025-Fix-cpCache-in-not-AllowEnhancedClassRedefinition-mo.patch
@@ -0,0 +1,43 @@
+From 507d97966c7145d0ae2533459cc504c7b0d6d5b6 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 22 Nov 2020 18:49:05 +0100
+Subject: [PATCH 25/34] Fix cpCache in not AllowEnhancedClassRedefinition mode
+
+---
+ src/hotspot/share/oops/cpCache.hpp | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/src/hotspot/share/oops/cpCache.hpp b/src/hotspot/share/oops/cpCache.hpp
+index 121a13b1dda..64dcf6223f5 100644
+--- a/src/hotspot/share/oops/cpCache.hpp
+++ b/src/hotspot/share/oops/cpCache.hpp
+@@ -148,13 +148,13 @@ class ConstantPoolCacheEntry {
+   void set_bytecode_2(Bytecodes::Code code);
+   void set_f1(Metadata* f1) {
+     Metadata* existing_f1 = _f1; // read once
+-    //assert(existing_f1 == NULL || existing_f1 == f1, "illegal field change");
+    assert(AllowEnhancedClassRedefinition || existing_f1 == NULL || existing_f1 == f1, "illegal field change");
+     _f1 = f1;
+   }
+   void release_set_f1(Metadata* f1);
+   void set_f2(intx f2) {
+     intx existing_f2 = _f2; // read once
+-    //assert(existing_f2 == 0 || existing_f2 == f2, "illegal field change");
+    assert(AllowEnhancedClassRedefinition || existing_f2 == 0 || existing_f2 == f2, "illegal field change");
+     _f2 = f2;
+   }
+   void set_f2_as_vfinal_method(Method* f2) {
+@@ -215,7 +215,9 @@ class ConstantPoolCacheEntry {
+   void initialize_resolved_reference_index(int ref_index) {
+     assert(_f2 == 0, "set once");  // note: ref_index might be zero also
+     _f2 = ref_index;
+-    _flags = 1 << is_resolved_ref_shift;
+    if (AllowEnhancedClassRedefinition) {
+      _flags = 1 << is_resolved_ref_shift;
+    }
+   }
+ 
+   void set_field(                                // sets entry to resolved field state
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0026-dcevm15-add-ClassLoaderDataGraph_lock-on.patch
+++ b/jb/project/tools/patches/dcevm/0026-dcevm15-add-ClassLoaderDataGraph_lock-on.patch
@@ -0,0 +1,32 @@
+From b516b615c20fafa2094dfb9f4cb08245b26418d0 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 22 Nov 2020 19:51:46 +0100
+Subject: [PATCH 26/34] dcevm15 - add ClassLoaderDataGraph_lock on
+ ClassLoaderDataGraph::classes_do
+
+ClassLoaderDataGraph::classes_do need safepoint or lock,
+find_sorted_affected_classes is not in safepoint therefore it must be
+locked
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index efaf11e1666..197e1c0029f 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -2063,7 +2063,10 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
+   AffectedKlassClosure closure(_affected_klasses);
+   // Updated in j10, from original SystemDictionary::classes_do
+ 
+-  ClassLoaderDataGraph::classes_do(&closure);
+  {
+    MutexLocker mcld(ClassLoaderDataGraph_lock);
+    ClassLoaderDataGraph::classes_do(&closure);
+  }
+   //ClassLoaderDataGraph::dictionary_classes_do(&closure);
+ 
+   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0027-dcevm15-check-if-has_nestmate_access_to-has-newest-h.patch
+++ b/jb/project/tools/patches/dcevm/0027-dcevm15-check-if-has_nestmate_access_to-has-newest-h.patch
@@ -0,0 +1,29 @@
+From c6498946006879314bdc6218ee72da5d9c88f237 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 28 Nov 2020 19:29:42 +0100
+Subject: [PATCH 27/34] dcevm15 - check if has_nestmate_access_to has newest
+ host class
+
+---
+ src/hotspot/share/oops/instanceKlass.cpp | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index 5e40d78a87e..1d9623f2446 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
+++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -445,6 +445,11 @@ bool InstanceKlass::has_nestmate_access_to(InstanceKlass* k, TRAPS) {
+     return false;
+   }
+ 
+  if (AllowEnhancedClassRedefinition) {
+    // TODO: (DCEVM) check if it correct. It fix problems with lambdas (hidden)
+    cur_host = InstanceKlass::cast(cur_host->newest_version());
+  }
+
+   Klass* k_nest_host = k->nest_host(CHECK_false);
+   if (k_nest_host == NULL) {
+     return false;
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0028-Remove-unused-fieldType.patch
+++ b/jb/project/tools/patches/dcevm/0028-Remove-unused-fieldType.patch
@@ -0,0 +1,24 @@
+From 86c27155386c1c40642c99c63a242d1f5d8601a5 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 28 Nov 2020 19:31:08 +0100
+Subject: [PATCH 28/34] Remove unused fieldType
+
+---
+ src/hotspot/share/classfile/vmSymbols.hpp | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
+index 6a3b234b222..eb06684a288 100644
+--- a/src/hotspot/share/classfile/vmSymbols.hpp
+++ b/src/hotspot/share/classfile/vmSymbols.hpp
+@@ -465,7 +465,6 @@
+   template(static_offset_name,                        "staticOffset")                             \
+   template(static_base_name,                          "staticBase")                               \
+   template(field_offset_name,                         "fieldOffset")                              \
+-  template(field_type_name,                           "fieldType")                                \
+                                                                                                   \
+    /* name symbols needed by intrinsics */                                                         \
+                                                                                                   \
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0029-mark_as_scavengable-only-alive-methods.patch
+++ b/jb/project/tools/patches/dcevm/0029-mark_as_scavengable-only-alive-methods.patch
@@ -0,0 +1,54 @@
+From 025d0d2903963fb79f83cf0d90418783d3ef6813 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 29 Nov 2020 17:18:16 +0100
+Subject: [PATCH 29/34] mark_as_scavengable only alive methods
+
+---
+ .../share/prims/jvmtiEnhancedRedefineClasses.cpp   | 14 ++++++++------
+ 1 file changed, 8 insertions(+), 6 deletions(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 197e1c0029f..e00fac1f693 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -223,19 +223,21 @@ class FieldCopier : public FieldClosure {
+ 
+ // TODO: review...
+ void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
+-  ScavengableNMethods::register_nmethod(nm);
+  if (nm->is_alive()) {
+    ScavengableNMethods::register_nmethod(nm);
+  }
+ }
+ 
+ void VM_EnhancedRedefineClasses::unregister_nmethod_g1(nmethod* nm) {
+   // It should work not only for G1 but also for another GCs, but this way is safer now
+-  if (!nm->is_zombie() && !nm->is_unloaded()) {
+  if (nm->is_alive()) {
+     Universe::heap()->unregister_nmethod(nm);
+   }
+ }
+ 
+ void VM_EnhancedRedefineClasses::register_nmethod_g1(nmethod* nm) {
+   // It should work not only for G1 but also for another GCs, but this way is safer now
+-  if (!nm->is_zombie() && !nm->is_unloaded()) {
+  if (nm->is_alive()) {
+     Universe::heap()->register_nmethod(nm);
+   }
+ }
+@@ -511,9 +513,9 @@ void VM_EnhancedRedefineClasses::doit() {
+     flush_dependent_code(thread);
+   // }
+ 
+-    // Adjust constantpool caches for all classes that reference methods of the evolved class.
+-    ClearCpoolCacheAndUnpatch clear_cpool_cache(thread);
+-    ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
+  // Adjust constantpool caches for all classes that reference methods of the evolved class.
+  ClearCpoolCacheAndUnpatch clear_cpool_cache(thread);
+  ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
+ 
+   // JSR-292 support
+   if (_any_class_has_resolved_methods) {
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0030-dcevm15-lock-on-ClassLoaderDataGraph-rollback_redefi.patch
+++ b/jb/project/tools/patches/dcevm/0030-dcevm15-lock-on-ClassLoaderDataGraph-rollback_redefi.patch
@@ -0,0 +1,28 @@
+From 27aabfefe7d799545049bb81ba19d4ed2ff6379c Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 29 Nov 2020 17:20:11 +0100
+Subject: [PATCH 30/34] dcevm15 - lock on
+ ClassLoaderDataGraph::rollback_redefinition
+
+rollback is not in safepoint, therefore must be locked
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index e00fac1f693..db5fb1c472b 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -1382,7 +1382,9 @@ void VM_EnhancedRedefineClasses::calculate_instance_update_information(Klass* ne
+ // Rollback all changes - clear new classes from the system dictionary, return old classes to directory, free memory.
+ void VM_EnhancedRedefineClasses::rollback() {
+   log_info(redefine, class, load)("Rolling back redefinition, result=%d", _res);
+  ClassLoaderDataGraph_lock->lock();
+   ClassLoaderDataGraph::rollback_redefinition();
+  ClassLoaderDataGraph_lock->unlock();
+ 
+   for (int i = 0; i < _new_classes->length(); i++) {
+     SystemDictionary::remove_from_hierarchy(_new_classes->at(i));
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0031-ResourceMark-in-G1IterateObjectClosureTask-fixing-me.patch
+++ b/jb/project/tools/patches/dcevm/0031-ResourceMark-in-G1IterateObjectClosureTask-fixing-me.patch
@@ -0,0 +1,28 @@
+From 9b405cb642d5935c39c8dbd522ea2fdecfc29ef3 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 29 Nov 2020 19:59:50 +0100
+Subject: [PATCH 31/34] ResourceMark in G1IterateObjectClosureTask fixing
+ memory leaks
+
+G1IterateObjectClosureTask is used only in redefinition full GC run
+---
+ src/hotspot/share/gc/g1/g1CollectedHeap.cpp | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/hotspot/share/gc/g1/g1CollectedHeap.cpp b/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
+index a29d2dddc2d..2af6df6c1e4 100644
+--- a/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
+++ b/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
+@@ -2362,6 +2362,9 @@ class G1IterateObjectClosureTask : public AbstractGangTask {
+     _cl(cl), _g1h(g1h),  _hrclaimer(g1h->workers()->active_workers()) { }
+ 
+   virtual void work(uint worker_id) {
+    Thread *thread = Thread::current();
+    HandleMark hm(thread);   // make sure any handles created are deleted
+    ResourceMark rm(thread);
+     IterateObjectClosureRegionClosure blk(_cl);
+     _g1h->heap_region_par_iterate_from_worker_offset(&blk, &_hrclaimer, worker_id);
+   }
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0032-dcevm15-fix-hidded-classes.patch
+++ b/jb/project/tools/patches/dcevm/0032-dcevm15-fix-hidded-classes.patch
@@ -0,0 +1,91 @@
+From 40fe40884d4efc50864bb3f2dd88f0a2e7122d5a Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 29 Nov 2020 20:05:03 +0100
+Subject: [PATCH 32/34] dcevm15 - fix hidded classes
+
+---
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 41 ++++++++++++++-----
+ 1 file changed, 30 insertions(+), 11 deletions(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index db5fb1c472b..590f7fdfafe 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -722,7 +722,8 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
+   }
+ 
+   // Cannot redefine or retransform an anonymous class.
+-  if (InstanceKlass::cast(k)->is_unsafe_anonymous()) {
+  // TODO: check if is correct in j15
+  if (InstanceKlass::cast(k)->is_unsafe_anonymous() || InstanceKlass::cast(k)->is_hidden()) {
+     return false;
+   }
+   return true;
+@@ -808,21 +809,27 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+ 
+     InstanceKlass* k;
+ 
+-    if (InstanceKlass::cast(the_class)->is_unsafe_anonymous()) {
+-      const InstanceKlass* host_class = the_class->unsafe_anonymous_host();
+    if (the_class->is_unsafe_anonymous() || the_class->is_hidden()) {
+      InstanceKlass* dynamic_host_class = NULL;
+      InstanceKlass* unsafe_anonymous_host = NULL;
+ 
+-      // Make sure it's the real host class, not another anonymous class.
+-      while (host_class != NULL && host_class->is_unsafe_anonymous()) {
+-        host_class = host_class->unsafe_anonymous_host();
+      if (the_class->is_hidden()) {
+        log_debug(redefine, class, load)("loading hidden class %s", the_class->name()->as_C_string());
+        dynamic_host_class = the_class->nest_host(THREAD);
+      }
+
+      if (the_class->is_unsafe_anonymous()) {
+        log_debug(redefine, class, load)("loading usafe anonymous %s", the_class->name()->as_C_string());
+        unsafe_anonymous_host = the_class->unsafe_anonymous_host();
+       }
+ 
+       ClassLoadInfo cl_info(protection_domain,
+-                            host_class,
+-                            NULL,     // dynamic_nest_host
+                            unsafe_anonymous_host,
+                             NULL,     // cp_patches
+                            dynamic_host_class,     // dynamic_nest_host
+                             Handle(), // classData
+-                            false,    // is_hidden
+-                            false,    // is_strong_hidden
+                            the_class->is_hidden(),    // is_hidden
+                            !the_class->is_non_strong_hidden(),    // is_strong_hidden
+                             true);    // FIXME: check if correct. can_access_vm_annotations
+ 
+       k = SystemDictionary::parse_stream(the_class_sym,
+@@ -833,7 +840,17 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+                                          THREAD);
+ 
+       k->class_loader_data()->exchange_holders(the_class->class_loader_data());
+-      the_class->class_loader_data()->inc_keep_alive();
+
+      if (the_class->is_hidden()) {
+      // from jvm_lookup_define_class() (jvm.cpp):
+      // The hidden class loader data has been artificially been kept alive to
+      // this point. The mirror and any instances of this class have to keep
+      // it alive afterwards.
+        the_class->class_loader_data()->dec_keep_alive();
+      } else {
+        the_class->class_loader_data()->inc_keep_alive();
+      }
+
+     } else {
+       k = SystemDictionary::resolve_from_stream(the_class_sym,
+                                                   the_class_loader,
+@@ -1475,6 +1492,8 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
+     ik->set_unsafe_anonymous_host(InstanceKlass::cast(ik->unsafe_anonymous_host()->newest_version()));
+   }
+ 
+  // FIXME: check new nest_host for hidden
+
+   // Update implementor if there is only one, in this case implementor() can reference old class
+   if (ik->is_interface()) {
+     Klass* implKlass = ik->implementor();
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0033-dcevm15-DON-T-clear-F2-in-CP-cache-after-indy-unevol.patch
+++ b/jb/project/tools/patches/dcevm/0033-dcevm15-DON-T-clear-F2-in-CP-cache-after-indy-unevol.patch
@@ -0,0 +1,27 @@
+From 29920b076b4ad96d85adbce0a1d947e5022ba3ad Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 29 Nov 2020 20:08:57 +0100
+Subject: [PATCH 33/34] dcevm15 - DON'T clear F2 in CP cache after indy
+ unevolving
+
+It's not clear why it was cleared in dcevm7-11
+---
+ src/hotspot/share/oops/cpCache.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/oops/cpCache.cpp b/src/hotspot/share/oops/cpCache.cpp
+index 79a38dbeff0..650e6fab42d 100644
+--- a/src/hotspot/share/oops/cpCache.cpp
+++ b/src/hotspot/share/oops/cpCache.cpp
+@@ -650,7 +650,7 @@ void ConstantPoolCacheEntry::clear_entry() {
+ 
+   if (clearData) {
+     if (!is_resolved_reference()) {
+-      _f2 = 0;
+      // _f2 = 0;
+     }
+     // FIXME: (DCEVM) we want to clear flags, but parameter size is actually used
+     // after we return from the method, before entry is re-initialized. So let's
+-- 
+2.23.0
+
--- a/jb/project/tools/patches/dcevm/0034-dcevm15-fix-Universe-root_oops_do.patch
+++ b/jb/project/tools/patches/dcevm/0034-dcevm15-fix-Universe-root_oops_do.patch
@@ -0,0 +1,49 @@
+From 1f13b20ab5553182680045b7d7324ff92da7e7f0 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 29 Nov 2020 21:28:06 +0100
+Subject: [PATCH 34/34] dcevm15 - fix Universe::root_oops_do
+
+Removed ClassLoaderDataGraph::cld_do was cause of crashes due multiple
+oop patching. ClassLoaderDataGraph::cld_do replaced in dcevm15
+previously used and removed SystemDictionary:oops_do
+---
+ src/hotspot/share/memory/universe.cpp | 11 ++++++++---
+ 1 file changed, 8 insertions(+), 3 deletions(-)
+
+diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
+index 8dad437bd51..0199962a684 100644
+--- a/src/hotspot/share/memory/universe.cpp
+++ b/src/hotspot/share/memory/universe.cpp
+@@ -190,21 +190,26 @@ void Universe::root_oops_do(OopClosure *oopClosure) {
+   // (DCEVM) TODO: Check if this is correct?
+   Management::oops_do(oopClosure);
+   OopStorageSet::vm_global()->oops_do(oopClosure);
+-  CLDToOopClosure cld_closure(oopClosure, ClassLoaderData::_claim_none);
+-  ClassLoaderDataGraph::cld_do(&cld_closure);
+  // CLDToOopClosure cld_closure(oopClosure, ClassLoaderData::_claim_none);
+  // ClassLoaderDataGraph::cld_do(&cld_closure);
+ 
+   // Now adjust pointers in remaining weak roots.  (All of which should
+   // have been cleared if they pointed to non-surviving objects.)
+   // Global (weak) JNI handles
+   WeakProcessor::oops_do(oopClosure);
+ 
+  JvmtiExport::oops_do(oopClosure);
+
+   CodeBlobToOopClosure blobClosure(oopClosure, CodeBlobToOopClosure::FixRelocations);
+   CodeCache::blobs_do(&blobClosure);
+  
+   AOT_ONLY(AOTLoader::oops_do(oopClosure);)
+  
+   // StringTable::oops_do was removed in j15
+   // StringTable::oops_do(oopClosure);
+ 
+-  // PSScavenge::reference_processor()->weak_oops_do(oopClosure);
+  // OopStorageSet::vm_global()->oops_do(oopClosure);
+
+ }
+ 
+ void Universe::oops_do(OopClosure* f) {
+-- 
+2.23.0
+
--- a/jb/project/tools/test/check_jbr_size.sh
+++ b/jb/project/tools/test/check_jbr_size.sh
@@ -1,162 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-
-TC_PRINT=0
-# Always print TeamCity service messages if running under TeamCity
-[[ -n "${TEAMCITY_VERSION:-}" ]] && TC_PRINT=1
-
-while getopts ":t" o; do
-    case "${o}" in
-        t) TC_PRINT=1 ;;
-        *);;
-    esac
-done
-shift $((OPTIND-1))
-
-NEWFILEPATH="$1"
-CONFIGID="$2"
-BUILDID="$3"
-TOKEN="$4"
-
-if [ ! -f "$NEWFILEPATH" ]; then
-  echo "File not found: $NEWFILEPATH"
-  exit 1
-fi
-#
-# Get the size of new artifact
-#
-
-unameOut="$(uname -s)"
-case "${unameOut}" in
-    Linux*)
-      NEWFILESIZE=$(stat -c%s "$NEWFILEPATH")
-      ;;
-    Darwin*)
-      NEWFILESIZE=$(stat -f%z "$NEWFILEPATH")
-      ;;
-    CYGWIN*)
-      NEWFILESIZE=$(stat -c%s "$NEWFILEPATH")
-      ;;
-    MINGW*)
-      NEWFILESIZE=$(stat -c%s "$NEWFILEPATH")
-      ;;
-    *)
-      echo "Unknown machine: ${unameOut}"
-      exit 1
-esac
-FILENAME=$(basename "${NEWFILEPATH}")
-
-#
-# Get pattern of artifact name
-# Base filename pattern: <BUNDLE_TYPE>-<JDK_VERSION>-<OS>-<ARCH>-b<BUILD>.tar.gz: jbr_dcevm-17.0.2-osx-x64-b1234.tar.gz
-# BUNDLE_TYPE: jbr, jbrsdk, jbr_dcevm, jbrsdk_jcef etc.
-# OS_ARCH_PATTERN - <os_architecture>: osx-x64, linux-aarch64, linux-musl-x64, windows-x64 etc.
-
-BUNDLE_TYPE=jbrsdk
-OS_ARCH_PATTERN=""
-FILE_EXTENSION=tar.gz
-
-re='(jbr[a-z_]*).*-[0-9_\.]+-(.+)-b[0-9]+(.+)'
-if [[ $FILENAME =~ $re ]]; then
-  BUNDLE_TYPE=${BASH_REMATCH[1]}
-  OS_ARCH_PATTERN=${BASH_REMATCH[2]}
-  FILE_EXTENSION=${BASH_REMATCH[3]}
-else
-  echo "File name $FILENAME does not match regex $re"
-  exit 1
-fi
-
-function test_started_msg() {
-  if [ $TC_PRINT -eq 1 ]; then
-    echo "##teamcity[testStarted name='$1']"
-  fi
-}
-
-function test_failed_msg() {
-  if [ $TC_PRINT -eq 1 ]; then
-    echo "##teamcity[testFailed name='$1' message='$2']"
-  fi
-}
-
-function test_finished_msg() {
-  if [ $TC_PRINT -eq 1 ]; then
-    echo "##teamcity[testFinished name='$1']"
-  fi
-}
-
-test_name="${BUNDLE_TYPE}_${OS_ARCH_PATTERN//\-/_}${FILE_EXTENSION//\./_}"
-test_started_msg "$test_name"
-
-echo "BUNDLE_TYPE: $BUNDLE_TYPE"
-echo "OS_ARCH_PATTERN: $OS_ARCH_PATTERN"
-echo "FILE_EXTENSION: $FILE_EXTENSION"
-echo "Size of $FILENAME is $NEWFILESIZE bytes"
-
-#
-# Get previous successful build ID
-# Example:
-# CONFIGID=IntellijCustomJdk_Jdk17_Master_LinuxX64jcef
-# BUILDID=12345678
-#
-# expected return value
-# id="123".number="567"
-#
-CURL_RESPONSE=$(curl -sSL --header "Authorization: Bearer $TOKEN" "https://buildserver.labs.intellij.net/app/rest/builds/?locator=buildType:(id:$CONFIGID),status:success,count:1,finishDate:(build:$BUILDID,condition:before)")
-re='id=\"([0-9]+)\".+number=\"([0-9\.]+)\"'
-
-# ID: Previous successful build id
-ID=0
-if [[ $CURL_RESPONSE =~ $re ]]; then
-  ID=${BASH_REMATCH[1]}
-  echo "Previous build ID: $ID"
-  echo "Previous build number: ${BASH_REMATCH[2]}"
-else
-  msg="ERROR: cannot find previous build"
-  echo "$msg"
-  echo "$CURL_RESPONSE"
-  test_failed_msg "$test_name" "$msg"
-  test_finished_msg "$test_name"
-  exit 1
-fi
-
-#
-# Get artifacts from previous successful build
-#
-# expected return value
-# name="jbrsdk_jcef*.tar.gz size="123'
-#
-CURL_RESPONSE=$(curl -sSL --header "Authorization: Bearer $TOKEN" "https://buildserver.labs.intellij.net/app/rest/builds/$ID?fields=id,number,artifacts(file(name,size))")
-echo "Artifacts of the previous build:"
-echo "$CURL_RESPONSE"
-
-# Find binary size (in response) with reg exp
-re="name=\"(${BUNDLE_TYPE}[^\"]+${OS_ARCH_PATTERN}[^\"]+${FILE_EXTENSION})\" size=\"([0-9]+)\""
-
-if [[ $CURL_RESPONSE =~ $re ]]; then
-  prevFileName=${BASH_REMATCH[1]}
-  echo "Previous artifact name: $prevFileName"
-  prevFileSize=${BASH_REMATCH[2]}
-  echo "Previous artifact size: $prevFileSize"
-
-  ((allowedSize=prevFileSize+prevFileSize/20)) # use 5% threshold
-  echo "Allowed size: $allowedSize"
-  if [[ "$NEWFILESIZE" -gt "$allowedSize" ]]; then
-    msg="ERROR: new size is significantly greater than previous size (need to investigate)"
-    echo "$msg"
-    test_failed_msg "$test_name" "$msg"
-    test_finished_msg "$test_name"
-    exit 1
-  else
-    echo "PASSED"
-    test_finished_msg "$test_name"
-  fi
-else
-  msg="ERROR: cannot find string with size in xml response:"
-  echo "Regex: $re"
-  echo "$msg"
-  echo "$CURL_RESPONSE"
-  test_failed_msg "$test_name" "$msg"
-  test_finished_msg "$test_name"
-  exit 1
-fi
--- a/jb/project/tools/test/perfcmp.sh
+++ b/jb/project/tools/test/perfcmp.sh
@@ -1,93 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
-
-usage ()
-{
-echo "Usage: perfcmp.sh [options] <test_results_cur> <test_results_ref> <results> <test_prefix> <noHeaders>"
-echo "Options:"
-echo -e " -h, --help\tdisplay this help"
-echo -e " -tc\tprint teacmity statistic"
-echo -e "test_results_cur - the file with  metrics values for the current measuring"
-echo -e "test_results_ref - the file with metrics values for the reference measuring"
-echo -e "results - results of comaprison"
-echo -e "test_prefix - specifys measuring type, makes sense for enabled -tc, by default no prefixes"
-echo -e "noHeaders - by default 1-st line contains headers"
-echo -e ""
-echo -e "test_results_* files content should be in csv format with header and tab separator:"
-echo -e "The 1-st column is the test name"
-echo -e "The 2-st column is the test value"
-echo -e ""
-echo -e "Example:"
-echo -e "Test           Value"
-echo -e "Testname       51.54"
-}
-
-while [ -n "$1" ]
-do
-case "$1" in
-h | --help) usage
-exit 1 ;;
-tc) tc=1
-  shift
-  break  ;;
-*) break;;
-esac
-done
-
-if [[ "$#" < "3" ]]; then
-    echo "Error: Invalid arguments"
-    usage
-    exit 1
-fi
-
-curFile=$1
-refFile=$2
-resFile=$3
-testNamePrefix=$4
-noHeaders=$5
-echo $curFile
-echo $refFile
-echo $resFile
-
-curValues=`cat "$curFile" | cut -f 2 | tr -d '\t'`
-if [ -z $noHeaders ]; then
-  curValuesHeader=`echo "$curValues" | head -n +1`_cur
-  header=`cat "$refFile" | head -n +1 | awk -F'\t' -v x=$curValuesHeader '{print "  "$1"\t"$2"_ref\t"x"\tratio"}'`
-  testContent=`paste -d '\t' $refFile <(echo "$curValues") | tail -n +2`
-else
-  testContent=`paste -d '\t' $refFile <(echo "$curValues") | tail -n +1`
-fi
-
-testContent=`echo "$testContent" | tr "," "." | awk -F'\t' '{
-  if ($3>$2+$2*0.1) {
-    print "* "$1"\t"$2"\t"$3"\t"(($2>0)?$3/$2:"-")
-  } else {
-    print "  "$1"\t"$2"\t"$3"\t"(($2>0)?$3/$2:"-")
-  }
-}'`
-if [ -z $noHeaders ]; then
-  echo "$header" > $resFile
-fi
-echo "$testContent" >> $resFile
-cat "$resFile" | tr '\t' ';' | column -t -s ';' | tee $resFile
-
-if [ -z $tc ]; then
-exit 0
-fi
-
-failed=0
-echo "$testContent" 2>&1 | (
-    while read -r s; do
-        testname=`echo "$s" | cut -f 1 | tr -d "[:space:]" |  tr -d "*"`
-        duration=`echo "$s" | cut -f 3`
-        echo "$s" | cut -c1 | grep -c "*" && failed=1
-        echo \#\#teamcity[testStarted name=\'$testNamePrefix$testname\']
-        echo "===>$s"
-        echo \#\#teamcity[buildStatisticValue key=\'$testNamePrefix$testname\' value=\'$duration\']
-        [ $failed -eq 1 ] && echo \#\#teamcity[testFailed name=\'$testNamePrefix$testname\' message=\'$s\']
-        echo \#\#teamcity[testFinished name=\'$testNamePrefix$testname\' duration=\'$duration\']
-        failed=0
-    done
-)
--- a/jb/project/tools/windows/scripts/mkimages_aarch64.sh
+++ b/jb/project/tools/windows/scripts/mkimages_aarch64.sh
@@ -1,142 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
-
-# The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
-#
-# This script makes test-image along with JDK images when bundle_type is set to "jcef".
-# If the character 't' is added at the end of bundle_type then it also makes test-image along with JDK images.
-#
-# Environment variables:
-#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument
-#               to configure
-#               By default JDK_BUILD_NUMBER is set zero
-#   JCEF_PATH - specifies the path to the directory with JCEF binaries.
-#               By default JCEF binaries should be located in ./jcef_win_aarch64
-
-if [ -z "$BUILD_JDK" ]; then
-  echo "BUILD_JDK environment variable must be specified and point to a JDK built from the current sources" \
-       " and is able to run on the build system. See OpenJDK documentation for --with-build-jdk for more info."
-  exit 1
-fi
-
-source jb/project/tools/common/scripts/common.sh
-
-WORK_DIR=$(pwd)
-JCEF_PATH=${JCEF_PATH:=$WORK_DIR/jcef_win_aarch64}
-
-function do_configure {
-  sh ./configure \
-    --enable-option-checking=fatal \
-    --openjdk-target=aarch64-unknown-cygwin \
-    $WITH_DEBUG_LEVEL \
-    --with-vendor-name="$VENDOR_NAME" \
-    --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-    --with-jvm-features=shenandoahgc \
-    --with-version-pre= \
-    --with-version-build=$JDK_BUILD_NUMBER \
-    --with-version-opt=b${build_number} \
-    --with-toolchain-version=$TOOLCHAIN_VERSION \
-    --with-boot-jdk=$BOOT_JDK \
-    --with-build-jdk=$BUILD_JDK \
-    --disable-ccache \
-    --enable-cds=yes \
-    $STATIC_CONF_ARGS \
-    $REPRODUCIBLE_BUILD_OPTS \
-    || do_exit $?
-}
-
-function create_image_bundle {
-  __bundle_name=$1
-  __arch_name=$2
-  __modules_path=$3
-  __modules=$4
-
-  fastdebug_infix=''
-
-  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-aarch64-${fastdebug_infix}b${build_number}
-
-  echo Running jlink ...
-  ${BUILD_JDK}/bin/jlink \
-    --module-path $__modules_path --no-man-pages --compress=2 \
-    --add-modules $__modules --output $__root_dir || do_exit $?
-
-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> $__root_dir/release
-  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' $__root_dir/release > release
-    mv release $__root_dir/release
-    for dir in $(ls -d $IMAGES_DIR/jdk/*); do
-      rsync -a --exclude demo --exclude sample $dir $__root_dir
-    done
-    copy_jmods "$__modules" "$__modules_path" "$__root_dir"/jmods
-  fi
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=windows-aarch64-server-release
-
-case "$bundle_type" in
-  "jcef")
-    do_reset_changes=0
-    do_maketest=1
-    ;;
-  "nomod" | "")
-    bundle_type=""
-    ;;
-  "fd")
-    do_reset_changes=0
-    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
-    RELEASE_NAME=windows-aarch64-server-fastdebug
-    ;;
-esac
-
-if [ -z "${INC_BUILD:-}" ]; then
-  do_configure || do_exit $?
-  if [ $do_maketest -eq 1 ]; then
-    make LOG=info CONF=$RELEASE_NAME clean images test-image || do_exit $?
-  else
-    make LOG=info CONF=$RELEASE_NAME clean images || do_exit $?
-  fi
-else
-  if [ $do_maketest -eq 1 ]; then
-    make LOG=info CONF=$RELEASE_NAME images test-image || do_exit $?
-  else
-    make LOG=info CONF=$RELEASE_NAME images || do_exit $?
-  fi
-fi
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk
-JSDK_MODS_DIR=$IMAGES_DIR/jmods
-JBRSDK_BUNDLE=jbrsdk
-
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
-  git apply -p0 < jb/project/tools/patches/add_jcef_module_aarch64.patch || do_exit $?
-  update_jsdk_mods "$BUILD_JDK" "$JCEF_PATH"/jmods "$JSDK"/jmods "$JSDK_MODS_DIR" || do_exit $?
-  cp $JCEF_PATH/jmods/* ${JSDK_MODS_DIR} # $JSDK/jmods is not unchanged
-
-  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
-fi
-
-# create runtime image bundle
-modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
-modules+=",jdk.crypto.mscapi"
-create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?
-
-# create sdk image bundle
-modules=$(cat ${JSDK}/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\r//g | sed s/\\n//g) || do_exit $?
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
-  modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
-fi
-create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" "$JBRSDK_BUNDLE" "$JSDK_MODS_DIR" "$modules" || do_exit $?
-
-do_exit 0
--- a/jb/project/tools/windows/scripts/mkimages_x64.sh
+++ b/jb/project/tools/windows/scripts/mkimages_x64.sh
@@ -1,25 +1,27 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies major version of OpenJDK e.g. 11_0_6 (instead of dots '.' underbars "_" are used)
+#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        <empty> or nomod - the release bundles without any additional modules (jcef)
+#                        jcef - the release bundles with jcef
+#                        fd - the fastdebug bundles which also include the jcef module
 #
-# This script makes test-image along with JDK images when bundle_type is set to "jcef".
-# If the character 't' is added at the end of bundle_type then it also makes test-image along with JDK images.
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
 #
 # Environment variables:
-#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument
-#               to configure
-#               By default JDK_BUILD_NUMBER is set zero
 #   JCEF_PATH - specifies the path to the directory with JCEF binaries.
 #               By default JCEF binaries should be located in ./jcef_win_x64

+min_parameters_count=2
 source jb/project/tools/common/scripts/common.sh

 WORK_DIR=$(pwd)
@@ -37,10 +39,7 @@ function do_configure {
    --with-toolchain-version=$TOOLCHAIN_VERSION \
    --with-boot-jdk=$BOOT_JDK \
    --disable-ccache \
-    --enable-cds=yes \
-    $STATIC_CONF_ARGS \
-    $REPRODUCIBLE_BUILD_OPTS \
-    || do_exit $?
+    --enable-cds=yes || do_exit $?
 }

 function create_image_bundle {
@@ -49,24 +48,18 @@ function create_image_bundle {
  __modules_path=$3
  __modules=$4

-  fastdebug_infix=''
-
  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x64-${fastdebug_infix}b${build_number}

  echo Running jlink ...
  ${JSDK}/bin/jlink \
    --module-path $__modules_path --no-man-pages --compress=2 \
-    --add-modules $__modules --output $__root_dir || do_exit $?
+    --add-modules $__modules --output $__arch_name || do_exit $?

-    grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> $__root_dir/release
-    if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' $__root_dir/release > release
-    mv release $__root_dir/release
-    for dir in $(ls -d $IMAGES_DIR/jdk/*); do
-      rsync -a --exclude demo --exclude sample $dir $__root_dir
-    done
-    copy_jmods "$__modules" "$__modules_path" "$__root_dir"/jmods
+  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> $__arch_name/release
+  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
+    sed 's/JBR/JBRSDK/g' $__arch_name/release > release
+    mv release $__arch_name/release
+    copy_jmods "$__modules" "$__modules_path" "$__arch_name"/jmods
  fi
 }

@@ -76,7 +69,12 @@ RELEASE_NAME=windows-x86_64-server-release
 case "$bundle_type" in
  "jcef")
    do_reset_changes=0
-    do_maketest=1
+    ;;
+  "dcevm")
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=0
+    do_reset_changes=0
    ;;
  "nomod" | "")
    bundle_type=""
@@ -88,15 +86,15 @@ case "$bundle_type" in
    ;;
 esac

-if [ -z "${INC_BUILD:-}" ]; then
+if [ -z "$INC_BUILD" ]; then
  do_configure || do_exit $?
-  if [ $do_maketest -eq 1 ]; then
+  if [ -z "$bundle_type" ]; then
    make LOG=info CONF=$RELEASE_NAME clean images test-image || do_exit $?
  else
    make LOG=info CONF=$RELEASE_NAME clean images || do_exit $?
  fi
 else
-  if [ $do_maketest -eq 1 ]; then
+  if [ -z "$bundle_type" ]; then
    make LOG=info CONF=$RELEASE_NAME images test-image || do_exit $?
  else
    make LOG=info CONF=$RELEASE_NAME images || do_exit $?
@@ -108,26 +106,28 @@ JSDK=$IMAGES_DIR/jdk
 JSDK_MODS_DIR=$IMAGES_DIR/jmods
 JBRSDK_BUNDLE=jbrsdk

-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
+where cygpath
+if [ $? -eq 0 ]; then
+  JCEF_PATH="$(cygpath -w $JCEF_PATH | sed 's/\\/\//g')"
+fi
+
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
  git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
  update_jsdk_mods "$JSDK" "$JCEF_PATH"/jmods "$JSDK"/jmods "$JSDK_MODS_DIR" || do_exit $?
  cp $JCEF_PATH/jmods/* ${JSDK_MODS_DIR} # $JSDK/jmods is not unchanged

  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
 fi

 # create runtime image bundle
-modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
-modules+=",jdk.crypto.mscapi"
+modules=$(xargs < modules.list | sed s/" "//g) || do_exit $?
 create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?

 # create sdk image bundle
 modules=$(cat ${JSDK}/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\r//g | sed s/\\n//g)
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
  modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
 fi
 create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" "$JBRSDK_BUNDLE" "$JSDK_MODS_DIR" "$modules" || do_exit $?

-do_exit 0
+do_exit 0
--- a/jb/project/tools/windows/scripts/mkimages_x86.sh
+++ b/jb/project/tools/windows/scripts/mkimages_x86.sh
@@ -1,14 +1,12 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
+#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
 #
 # $ ./java --version
 # openjdk 11.0.6 2020-01-14
@@ -16,112 +14,49 @@ set -x
 # OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
 #

+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+
+JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
+
 source jb/project/tools/common/scripts/common.sh

+JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
 WORK_DIR=$(pwd)

-function do_configure {
-  sh ./configure \
-    $WITH_DEBUG_LEVEL \
-    --with-vendor-name="$VENDOR_NAME" \
-    --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-    --with-jvm-features=shenandoahgc \
-    --with-version-pre= \
-    --with-version-build=$JDK_BUILD_NUMBER \
-    --with-version-opt=b${build_number} \
-    --with-toolchain-version=$TOOLCHAIN_VERSION \
-    --with-boot-jdk=$BOOT_JDK \
-    --disable-ccache \
-    --enable-cds=yes \
-    $STATIC_CONF_ARGS \
-    $REPRODUCIBLE_BUILD_OPTS \
-    || do_exit $?
-}
+[ -z "$bundle_type" ] && (git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch || exit $?)

-function create_image_bundle {
-  __bundle_name=$1
-  __arch_name=$2
-  __modules_path=$3
-  __modules=$4
+PATH="/usr/local/bin:/usr/bin:${PATH}"
+./configure \
+  --with-target-bits=32 \
+  --with-vendor-name="${VENDOR_NAME}" \
+  --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
+  --with-version-pre= \
+  --with-version-build=${JDK_BUILD_NUMBER} \
+  --with-version-opt=b${build_number} \
+  --with-toolchain-version=${TOOLCHAIN_VERSION} \
+  --with-boot-jdk=${BOOT_JDK} \
+  --disable-ccache \
+  --enable-cds=yes || exit 1
+make clean CONF=windows-x86-server-release || exit 1
+make LOG=info images CONF=windows-x86-server-release test-image || exit 1

-  fastdebug_infix=''
-
-  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x86-${fastdebug_infix}b${build_number}
-
-  echo Running jlink ...
-  ${JSDK}/bin/jlink \
-    --module-path $__modules_path --no-man-pages --compress=2 \
-    --add-modules $__modules --output $__root_dir || do_exit $?
-
-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> $__root_dir/release
-  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' $__root_dir/release > release
-    mv release $__root_dir/release
-    for dir in $(ls -d $IMAGES_DIR/jdk/*); do
-      rsync -a --exclude demo --exclude sample $dir $__root_dir
-    done
-    copy_jmods "$__modules" "$__modules_path" "$__root_dir"/jmods
-  fi
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=windows-x86_64-server-release
-
-case "$bundle_type" in
-  "jcef")
-    echo "not implemented" && do_exit 1
-    ;;
-  "nomod" | "")
-    bundle_type=""
-    ;;
-  "fd")
-    do_reset_changes=0
-    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
-    RELEASE_NAME=windows-x86_64-server-fastdebug
-    ;;
-esac
-
-if [ -z "${INC_BUILD:-}" ]; then
-  do_configure || do_exit $?
-  if [ $do_maketest -eq 1 ]; then
-    make LOG=info CONF=$RELEASE_NAME clean images test-image || do_exit $?
-  else
-    make LOG=info CONF=$RELEASE_NAME clean images || do_exit $?
-  fi
-else
-  if [ $do_maketest -eq 1 ]; then
-    make LOG=info CONF=$RELEASE_NAME images test-image || do_exit $?
-  else
-    make LOG=info CONF=$RELEASE_NAME images || do_exit $?
-  fi
-fi
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk
-JSDK_MODS_DIR=$IMAGES_DIR/jmods
+JBSDK=${JBRSDK_BASE_NAME}-windows-x86-b${build_number}
+BASE_DIR=build/windows-x86-server-release/images
+JSDK=${BASE_DIR}/jdk
 JBRSDK_BUNDLE=jbrsdk

-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
-  git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
-  update_jsdk_mods "$JSDK" "$JCEF_PATH"/jmods "$JSDK"/jmods "$JSDK_MODS_DIR" || do_exit $?
-  cp $JCEF_PATH/jmods/* ${JSDK_MODS_DIR} # $JSDK/jmods is not unchanged
+rm -rf ${BASE_DIR}/${JBRSDK_BUNDLE} && rsync -a --exclude demo --exclude sample ${JSDK}/ ${JBRSDK_BUNDLE} || exit 1
+sed 's/JBR/JBRSDK/g' ${JSDK}/release > release
+mv release ${JBRSDK_BUNDLE}/release

-  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
-fi
+JBR_BUNDLE=jbr
+rm -rf ${JBR_BUNDLE}
+grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
+${JSDK}/bin/jlink \
+  --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
+  --add-modules $(xargs < modules.list.x86 | sed s/" "//g) --output ${JBR_BUNDLE} || exit $?

-# create runtime image bundle
-modules=$(grep -v "jdk.internal.vm" jb/project/tools/common/modules.list | xargs | sed s/" "//g) || do_exit $?
-modules+=",jdk.crypto.mscapi"
-create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?
-
-# create sdk image bundle
-modules=$(cat ${JSDK}/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\r//g | sed s/\\n//g)
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
-  modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
-fi
-create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" "$JBRSDK_BUNDLE" "$JSDK_MODS_DIR" "$modules" || do_exit $?
-
-do_exit 0
+echo Modifying release info ...
+#grep -v \"^JAVA_VERSION\" ${JSDK}/release | grep -v \"^MODULES\" >> ${JBR_BUNDLE}/release
--- a/jb/project/tools/windows/scripts/pack_aarch64.sh
+++ b/jb/project/tools/windows/scripts/pack_aarch64.sh
@@ -1,56 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
-
-# The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
-#
-# This script packs test-image along with JDK images when bundle_type is set to "jcef".
-# If the character 't' is added at the end of bundle_type then it also makes test-image along with JDK images.
-#
-
-source jb/project/tools/common/scripts/common.sh
-
-[ "$bundle_type" == "jcef" ] && do_maketest=1
-
-function pack_jbr {
-  __bundle_name=$1
-  __arch_name=$2
-
-  fastdebug_infix=''
-
-  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-windows-aarch64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-aarch64-${fastdebug_infix}b${build_number}
-
-  echo Creating $JBR.tar.gz ...
-  chmod -R ug+rwx,o+rx ${BASE_DIR}/$__root_dir
-  /usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR $__root_dir || do_exit $?
-}
-
-[ "$bundle_type" == "nomod" ] && bundle_type=""
-
-JBRSDK_BUNDLE=jbrsdk
-RELEASE_NAME=windows-aarch64-server-release
-IMAGES_DIR=build/$RELEASE_NAME/images
-BASE_DIR=.
-
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
-  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
-fi
-
-pack_jbr jbr${jbr_name_postfix} jbr
-pack_jbr jbrsdk${jbr_name_postfix} jbrsdk
-
-if [ $do_maketest -eq 1 ]; then
-  JBRSDK_TEST=$JBRSDK_BUNDLE-$JBSDK_VERSION-windows-test-aarch64-b$build_number
-  echo Creating $JBRSDK_TEST.tar.gz ...
-  /usr/bin/tar -czf $JBRSDK_TEST.tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
-fi
--- a/jb/project/tools/windows/scripts/pack_x64.sh
+++ b/jb/project/tools/windows/scripts/pack_x64.sh
@@ -1,36 +1,40 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               jcef - the release bundles with jcef
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies major version of OpenJDK e.g. 11_0_6 (instead of dots '.' underbars "_" are used)
+#   JDK_BUILD_NUMBER - specifies udate release of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        <empty> or nomod - the bundles without any additional modules (jcef)
+#                        jcef - the bundles with jcef
+#                        fd - the fastdebug bundles which also include the jcef module
 #
-# This script packs test-image along with JDK images when bundle_type is set to "jcef".
-# If the character 't' is added at the end of bundle_type then it also makes test-image along with JDK images.
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
 #

 source jb/project/tools/common/scripts/common.sh

-[ "$bundle_type" == "jcef" ] && do_maketest=1
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+bundle_type=$4

 function pack_jbr {
  __bundle_name=$1
  __arch_name=$2

-  fastdebug_infix=''
-
  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
  JBR=${__bundle_name}-${JBSDK_VERSION}-windows-x64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x64-${fastdebug_infix}b${build_number}

  echo Creating $JBR.tar.gz ...
-  chmod -R ug+rwx,o+rx ${BASE_DIR}/$__root_dir
-  /usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR $__root_dir || do_exit $?
+
+  /usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR $__arch_name || do_exit $?
 }

 [ "$bundle_type" == "nomod" ] && bundle_type=""
@@ -42,14 +46,12 @@ BASE_DIR=.

 if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
 fi

 pack_jbr jbr${jbr_name_postfix} jbr
 pack_jbr jbrsdk${jbr_name_postfix} jbrsdk

-if [ $do_maketest -eq 1 ]; then
+if [ -z "$bundle_type" ]; then
  JBRSDK_TEST=$JBRSDK_BUNDLE-$JBSDK_VERSION-windows-test-x64-b$build_number
  echo Creating $JBRSDK_TEST.tar.gz ...
  /usr/bin/tar -czf $JBRSDK_TEST.tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
--- a/jb/project/tools/windows/scripts/pack_x86.sh
+++ b/jb/project/tools/windows/scripts/pack_x86.sh
@@ -1,50 +1,42 @@
-#!/bin/bash
-
-set -euo pipefail
-set -x
+#!/bin/bash -x

 # The following parameters must be specified:
-#   build_number - specifies the number of JetBrainsRuntime build
-#   bundle_type  - specifies bundle to be built;possible values:
-#               <empty> or nomod - the release bundles without any additional modules (jcef)
-#               fd - the fastdebug bundles which also include the jcef module
+#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
+#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#
+# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
 #

-source jb/project/tools/common/scripts/common.sh
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3

-[ "$bundle_type" == "jcef" ] && echo "not implemented" && do_exit 1
+JBRSDK_BASE_NAME=jbrsdk-$JBSDK_VERSION
+JBR_BASE_NAME=jbr-$JBSDK_VERSION

-function pack_jbr {
-  __bundle_name=$1
-  __arch_name=$2
-
-  fastdebug_infix=''
-
-  [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-windows-x86-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x86-${fastdebug_infix}b${build_number}
-
-  echo Creating $JBR.tar.gz ...
-  chmod -R ug+rwx,o+rx ${BASE_DIR}/$__root_dir
-  /usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR $__root_dir || do_exit $?
-}
-
-[ "$bundle_type" == "nomod" ] && bundle_type=""
-
-JBRSDK_BUNDLE=jbrsdk
+IMAGES_DIR=build/windows-x86-server-release/images
+JSDK=$IMAGES_DIR/jdk
+JBSDK=$JBRSDK_BASE_NAME-windows-x86-b$build_number
 BASE_DIR=.

-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
-  jbr_name_postfix="_${bundle_type}"
-else
-  jbr_name_postfix=""
-fi
+JBRSDK_BUNDLE=jbrsdk
+echo Creating $JBSDK.tar.gz ...
+/usr/bin/tar -czf $JBSDK.tar.gz $JBRSDK_BUNDLE || exit 1

-pack_jbr jbr${jbr_name_postfix} jbr
-pack_jbr jbrsdk${jbr_name_postfix} jbrsdk
+JBR_BUNDLE=jbr
+JBR_BASE_NAME=jbr-${JBSDK_VERSION}

-if [ $do_maketest -eq 1 ]; then
-  JBRSDK_TEST=$JBRSDK_BUNDLE-$JBSDK_VERSION-windows-test-x86-b$build_number
-  echo Creating $JBRSDK_TEST.tar.gz ...
-  /usr/bin/tar -czf $JBRSDK_TEST.tar.gz -C $BASE_DIR --exclude='test/jdk/demos' test || do_exit $?
-fi
+JBR=$JBR_BASE_NAME-windows-x86-b$build_number
+echo Creating $JBR.tar.gz ...
+/usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR ${JBR_BUNDLE} || exit 1
+
+JBRSDK_TEST=$JBRSDK_BASE_NAME-windows-test-x86-b$build_number
+echo Creating $JBRSDK_TEST.tar.gz ...
+/usr/bin/tar -czf $JBRSDK_TEST.tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || exit 1
--- a/make/CompileInterimLangtools.gmk
+++ b/make/CompileInterimLangtools.gmk
@@ -71,11 +71,11 @@ define SetupInterimModule
      SRC := $(BUILDTOOLS_OUTPUTDIR)/gensrc/$1.interim \
          $$(wildcard $(SUPPORT_OUTPUTDIR)/gensrc/$1) \
          $(TOPDIR)/src/$1/share/classes, \
-      EXCLUDES := sun, \
+      EXCLUDES := sun javax/tools/snippet-files, \
      EXCLUDE_FILES := $(TOPDIR)/src/$1/share/classes/module-info.java \
          Standard.java, \
      EXTRA_FILES := $(BUILDTOOLS_OUTPUTDIR)/gensrc/$1.interim/module-info.java, \
-      COPY := .gif .png .xml .css .js .js.template .txt javax.tools.JavaCompilerTool, \
+      COPY := .gif .png .xml .css .svg .js .js.template .txt javax.tools.JavaCompilerTool, \
      BIN := $(BUILDTOOLS_OUTPUTDIR)/interim_langtools_modules/$1.interim, \
      DISABLED_WARNINGS := module options, \
      JAVAC_FLAGS := \
--- a/make/CreateJmods.gmk
+++ b/make/CreateJmods.gmk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2014, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -196,6 +196,11 @@ else # not java.base
  endif
 endif

+# Set main class of jdk.httpserver module
+ifeq ($(MODULE), jdk.httpserver)
+    JMOD_FLAGS += --main-class sun.net.httpserver.simpleserver.Main
+endif
+
 # Changes to the jmod tool itself should also trigger a rebuild of all jmods.
 # The variable JMOD_CMD could contain an environment variable assignment before
 # the actual command. Filter that out using wildcard before adding to DEPS.
@@ -228,23 +233,6 @@ else
  JMOD_SOURCE_DATE :=
 endif

-ifeq ($(ENABLE_REPRODUCIBLE_BUILD), true)
-  # If boot JDK's jar supported --date, jrt-fs.jar would've been built with
-  # that option already.
-  ifneq ($(BOOT_JDK_JAR_SUPPORTS_DATE), true)
-    ifeq ($(MODULE), java.base)
-      JAR_FILE_TO_FIX := $(SUPPORT_OUTPUTDIR)/modules_libs/java.base/jrt-fs.jar
-      $(eval $(call SetupExecute, fixup_jrtfs_jar, \
-        WARN := Fixing timestamps in modules_libs/java.base/jrt-fs.jar, \
-        DEPS := $(JAR_FILE_TO_FIX) $(JDK_OUTPUTDIR)/bin/jar, \
-        OUTPUT_DIR := $(JMODS_SUPPORT_DIR), \
-        COMMAND := $(BUILD_JAR) --date $(SOURCE_DATE_ISO_8601) --update --file $(JAR_FILE_TO_FIX) @$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/_the.jrt-fs.jar_contents, \
-      ))
-      DEPS += $(fixup_jrtfs_jar_TARGET)
-    endif
-  endif
-endif
-
 # Create jmods in the support dir and then move them into place to keep the
 # module path in $(IMAGES_OUTPUTDIR)/jmods valid at all times.
 $(eval $(call SetupExecute, create_$(JMOD_FILE), \
--- a/make/Hsdis.gmk
+++ b/make/Hsdis.gmk
@@ -0,0 +1,146 @@
+#
+# Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+default: all
+
+include $(SPEC)
+include MakeBase.gmk
+include JdkNativeCompilation.gmk
+
+################################################################################
+# This makefile compiles and installs the hsdis library
+#
+################################################################################
+
+HSDIS_OUTPUT_DIR := $(SUPPORT_OUTPUTDIR)/hsdis
+
+ifeq ($(call isTargetOs, windows), true)
+  INSTALLED_HSDIS_DIR := $(JDK_OUTPUTDIR)/bin
+
+  # On windows, we need to "fake" a completely different toolchain using gcc
+  # instead of the normal microsoft toolchain. This is quite hacky...
+
+  MINGW_BASE := x86_64-w64-mingw32
+
+  MINGW_SYSROOT = $(shell $(MINGW_BASE)-gcc -print-sysroot)
+  ifeq ($(wildcard $(MINGW_SYSROOT)), )
+    # Use fallback path
+    MINGW_SYSROOT := /usr/$(MINGW_BASE)
+    ifeq ($(wildcard $(MINGW_SYSROOT)), )
+      $(error mingw sysroot not found)
+    endif
+  endif
+
+  $(eval $(call DefineNativeToolchain, TOOLCHAIN_MINGW, \
+      CC := $(MINGW_BASE)-gcc, \
+      LD := $(MINGW_BASE)-ld, \
+      OBJCOPY := $(MINGW_BASE)-objcopy, \
+      RC := $(RC), \
+      SYSROOT_CFLAGS := --sysroot=$(MINGW_SYSROOT), \
+      SYSROOT_LDFLAGS := --sysroot=$(MINGW_SYSROOT), \
+  ))
+
+  MINGW_SYSROOT_LIB_PATH := $(MINGW_SYSROOT)/mingw/lib
+  ifeq ($(wildcard $(MINGW_SYSROOT_LIB_PATH)), )
+    # Try without mingw
+    MINGW_SYSROOT_LIB_PATH := $(MINGW_SYSROOT)/lib
+    ifeq ($(wildcard $(MINGW_SYSROOT_LIB_PATH)), )
+      $(error mingw sysroot lib path not found)
+    endif
+  endif
+
+  MINGW_VERSION = $(shell $(MINGW_BASE)-gcc -v 2>&1 | $(GREP) "gcc version" | $(CUT) -d " " -f 3)
+  MINGW_GCC_LIB_PATH := /usr/lib/gcc/$(MINGW_BASE)/$(MINGW_VERSION)
+  ifeq ($(wildcard $(MINGW_GCC_LIB_PATH)), )
+    # Try using only major version number
+    MINGW_VERSION_MAJOR := $(firstword $(subst ., , $(MINGW_VERSION)))
+    MINGW_GCC_LIB_PATH := /usr/lib/gcc/$(MINGW_BASE)/$(MINGW_VERSION_MAJOR)
+    ifeq ($(wildcard $(MINGW_GCC_LIB_PATH)), )
+      $(error mingw gcc lib path not found)
+    endif
+  endif
+
+  TOOLCHAIN_TYPE := gcc
+  OPENJDK_TARGET_OS := linux
+  CC_OUT_OPTION := -o$(SPACE)
+  LD_OUT_OPTION := -o$(SPACE)
+  GENDEPS_FLAGS := -MMD -MF
+  CFLAGS_DEBUG_SYMBOLS := -g
+  DISABLED_WARNINGS :=
+  DISABLE_WARNING_PREFIX := -Wno-
+  CFLAGS_WARNINGS_ARE_ERRORS := -Werror
+  SHARED_LIBRARY_FLAGS := -shared
+
+  HSDIS_TOOLCHAIN := TOOLCHAIN_MINGW
+  HSDIS_TOOLCHAIN_CFLAGS :=
+  HSDIS_TOOLCHAIN_LDFLAGS := -L$(MINGW_GCC_LIB_PATH) -L$(MINGW_SYSROOT_LIB_PATH)
+  MINGW_DLLCRT := $(MINGW_SYSROOT_LIB_PATH)/dllcrt2.o
+  HSDIS_TOOLCHAIN_LIBS := $(MINGW_DLLCRT) -lmingw32 -lgcc -lgcc_eh -lmoldname \
+      -lmingwex -lmsvcrt -lpthread -ladvapi32 -lshell32 -luser32 -lkernel32
+else
+  INSTALLED_HSDIS_DIR := $(JDK_OUTPUTDIR)/lib
+
+  HSDIS_TOOLCHAIN := TOOLCHAIN_DEFAULT
+  HSDIS_TOOLCHAIN_CFLAGS := $(CFLAGS_JDKLIB)
+  HSDIS_TOOLCHAIN_LDFLAGS := $(LDFLAGS_JDKLIB)
+  HSDIS_TOOLCHAIN_LIBS := -ldl
+endif
+
+
+$(eval $(call SetupJdkLibrary, BUILD_HSDIS, \
+    NAME := hsdis, \
+    SRC := $(TOPDIR)/src/utils/hsdis, \
+    TOOLCHAIN := $(HSDIS_TOOLCHAIN), \
+    OUTPUT_DIR := $(HSDIS_OUTPUT_DIR), \
+    OBJECT_DIR := $(HSDIS_OUTPUT_DIR), \
+    DISABLED_WARNINGS_gcc := undef format-nonliteral sign-compare, \
+    DISABLED_WARNINGS_clang := undef format-nonliteral, \
+    CFLAGS := $(HSDIS_TOOLCHAIN_CFLAGS) $(HSDIS_CFLAGS), \
+    LDFLAGS := $(HSDIS_TOOLCHAIN_LDFLAGS) $(SHARED_LIBRARY_FLAGS), \
+    LIBS := $(HSDIS_LIBS) $(HSDIS_TOOLCHAIN_LIBS), \
+))
+
+build: $(BUILD_HSDIS)
+
+TARGETS += build
+
+INSTALLED_HSDIS_NAME := hsdis-$(OPENJDK_TARGET_CPU_LEGACY_LIB)$(SHARED_LIBRARY_SUFFIX)
+
+INSTALLED_HSDIS := $(INSTALLED_HSDIS_DIR)/$(INSTALLED_HSDIS_NAME)
+
+$(INSTALLED_HSDIS): $(BUILD_HSDIS_TARGET)
+	$(call LogWarn, NOTE: The resulting build might not be redistributable. Seek legal advice before distibuting.)
+	$(install-file)
+
+
+install: $(INSTALLED_HSDIS)
+
+TARGETS += install
+
+################################################################################
+
+all: $(TARGETS)
+
+.PHONY: all default build install
--- a/make/Main.gmk
+++ b/make/Main.gmk
@@ -526,6 +526,18 @@ $(eval $(call SetupTarget, update-x11wrappers, \
    DEPS := java.base-copy buildtools-jdk, \
 ))

+ifneq ($(HSDIS_BACKEND), none)
+  $(eval $(call SetupTarget, build-hsdis, \
+      MAKEFILE := Hsdis, \
+      TARGET := build, \
+  ))
+
+  $(eval $(call SetupTarget, install-hsdis, \
+      MAKEFILE := Hsdis, \
+      TARGET := install, \
+  ))
+endif
+
 ################################################################################
 # Cross compilation support

--- a/make/RunTests.gmk
+++ b/make/RunTests.gmk
@@ -200,9 +200,10 @@ $(eval $(call SetTestOpt,FAILURE_HANDLER_TIMEOUT,JTREG))
 $(eval $(call ParseKeywordVariable, JTREG, \
    SINGLE_KEYWORDS := JOBS TIMEOUT_FACTOR FAILURE_HANDLER_TIMEOUT \
        TEST_MODE ASSERT VERBOSE RETAIN MAX_MEM RUN_PROBLEM_LISTS \
-        RETRY_COUNT REPEAT_COUNT MAX_OUTPUT, \
+        RETRY_COUNT REPEAT_COUNT MAX_OUTPUT $(CUSTOM_JTREG_SINGLE_KEYWORDS), \
    STRING_KEYWORDS := OPTIONS JAVA_OPTIONS VM_OPTIONS KEYWORDS \
-        EXTRA_PROBLEM_LISTS LAUNCHER_OPTIONS, \
+        EXTRA_PROBLEM_LISTS LAUNCHER_OPTIONS \
+        $(CUSTOM_JTREG_STRING_KEYWORDS), \
 ))

 ifneq ($(JTREG), )
@@ -850,6 +851,8 @@ define SetupRunJtregTestBody
    endif
  endif

+  $$(eval $$(call SetupRunJtregTestCustom, $1))
+
  clean-workdir-$1:
 	$$(RM) -r $$($1_TEST_SUPPORT_DIR)

--- a/make/TestImage.gmk
+++ b/make/TestImage.gmk
@@ -35,8 +35,8 @@ BUILD_INFO_PROPERTIES := $(TEST_IMAGE_DIR)/build-info.properties
 $(BUILD_INFO_PROPERTIES):
 	$(call MakeTargetDir)
 	$(ECHO) "# Build info properties for JDK tests" > $@
-	$(ECHO) 'build.workspace.root=$(call FixPath, $(WORKSPACE_ROOT))' >> $@
-	$(ECHO) 'build.output.root=$(call FixPath, $(OUTPUTDIR))' >> $@
+	$(ECHO) "build.workspace.root=$(call FixPath, $(WORKSPACE_ROOT))" >> $@
+	$(ECHO) "build.output.root=$(call FixPath, $(OUTPUTDIR))" >> $@

 README := $(TEST_IMAGE_DIR)/Readme.txt

--- a/make/ToolsJdk.gmk
+++ b/make/ToolsJdk.gmk
@@ -75,6 +75,8 @@ TOOL_MAKEJAVASECURITY = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_clas
    build.tools.makejavasecurity.MakeJavaSecurity

 TOOL_GENERATECACERTS = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
+    -Dkeystore.pkcs12.certProtectionAlgorithm=NONE \
+    -Dkeystore.pkcs12.macAlgorithm=NONE \
    build.tools.generatecacerts.GenerateCacerts

 TOOL_GENERATEEMOJIDATA = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
--- a/make/autoconf/basic.m4
+++ b/make/autoconf/basic.m4
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -438,7 +438,9 @@ AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
 AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],
 [
  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
-    file_to_test="$TOPDIR/LICENSE"
+    # The choice of file here is somewhat arbitrary, it just needs to be there
+    # in the source tree when configure runs
+    file_to_test="$TOPDIR/Makefile"
    if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
      AC_MSG_ERROR([Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin.])
    fi
--- a/make/autoconf/basic_tools.m4
+++ b/make/autoconf/basic_tools.m4
@@ -270,8 +270,6 @@ AC_DEFUN([BASIC_CHECK_TAR],
    TAR_TYPE="bsd"
  elif test "x$($TAR -v | $GREP "bsdtar")" != "x"; then
    TAR_TYPE="bsd"
-  elif test "x$($TAR --version | $GREP "busybox")" != "x"; then
-    TAR_TYPE="busybox"
  elif test "x$OPENJDK_BUILD_OS" = "xaix"; then
    TAR_TYPE="aix"
  fi
@@ -283,12 +281,9 @@ AC_DEFUN([BASIC_CHECK_TAR],
    TAR_SUPPORTS_TRANSFORM="true"
  elif test "x$TAR_TYPE" = "aix"; then
    # -L InputList of aix tar: name of file listing the files and directories
-    # that need to be archived or extracted
+    # that need to be   archived or extracted
    TAR_INCLUDE_PARAM="L"
    TAR_SUPPORTS_TRANSFORM="false"
-  elif test "x$TAR_TYPE" = "xbusybox"; then
-    TAR_INCLUDE_PARAM="T"
-    TAR_SUPPORTS_TRANSFORM="false"
  else
    TAR_INCLUDE_PARAM="I"
    TAR_SUPPORTS_TRANSFORM="false"
--- a/make/autoconf/basic_windows.m4
+++ b/make/autoconf/basic_windows.m4
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -34,9 +34,10 @@ AC_DEFUN([BASIC_SETUP_PATHS_WINDOWS],
      OPENJDK_BUILD_OS_ENV=windows.wsl1
    else
      # This test is not guaranteed, but there is no documented way of
-      # distinguishing between WSL1 and WSL2. Assume only WSL2 has WSL_INTEROP
-      # in /run/WSL
-      if test -d "/run/WSL" ; then
+      # distinguishing between WSL1 and WSL2.
+      # Check whether "Hyper-V" appears in /proc/interrupts because WSL2 runs on Hyper-V.
+      $GREP -q Hyper-V /proc/interrupts
+      if test $? -eq 0; then
        OPENJDK_BUILD_OS_ENV=windows.wsl2
      else
        OPENJDK_BUILD_OS_ENV=windows.wsl1
--- a/make/autoconf/boot-jdk.m4
+++ b/make/autoconf/boot-jdk.m4
@@ -298,6 +298,28 @@ AC_DEFUN([BOOTJDK_CHECK_TOOL_IN_BOOTJDK],
    ])
 ])

+# Setup CLASSPATH environment variable
+AC_DEFUN([BOOTJDK_SETUP_CLASSPATH],
+[
+  AC_ARG_WITH([classpath], [AS_HELP_STRING([--with-classpath],
+      [Optional classpath to set as CLASSPATH to all Java invocations @<:@none@:>@])])
+
+  if test "x$CLASSPATH" != x; then
+    AC_MSG_WARN([CLASSPATH is set in the environment. This will be ignored. Use --with-classpath instead.])
+  fi
+
+  CLASSPATH=
+
+  if test "x$with_classpath" != x && test "x$with_classpath" != xyes &&
+      test "x$with_classpath" != xno ; then
+    CLASSPATH="$with_classpath"
+    AC_MSG_CHECKING([for classpath to use for all Java invocations])
+    AC_MSG_RESULT([$CLASSPATH])
+  fi
+
+  AC_SUBST(CLASSPATH)
+])
+
 ###############################################################################
 #
 # We need a Boot JDK to bootstrap the build.
@@ -404,6 +426,8 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK],
    BOOTJDK_USE_LOCAL_CDS=false
    AC_MSG_RESULT([no, -XX:SharedArchiveFile not supported])
  fi
+
+  BOOTJDK_SETUP_CLASSPATH
 ])

 AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK_ARGUMENTS],
--- a/make/autoconf/configure.ac
+++ b/make/autoconf/configure.ac
@@ -252,6 +252,7 @@ JDKOPT_EXCLUDE_TRANSLATIONS
 JDKOPT_ENABLE_DISABLE_MANPAGES
 JDKOPT_ENABLE_DISABLE_CDS_ARCHIVE
 JDKOPT_ENABLE_DISABLE_COMPATIBLE_CDS_ALIGNMENT
+JDKOPT_SETUP_HSDIS

 ###############################################################################
 #
--- a/make/autoconf/flags-cflags.m4
+++ b/make/autoconf/flags-cflags.m4
@@ -95,39 +95,11 @@ AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS],
  # info flags for toolchains unless we know they work.
  # See JDK-8207057.
  ASFLAGS_DEBUG_SYMBOLS=""
-
-  # Debug prefix mapping if supported by compiler
-  DEBUG_PREFIX_CFLAGS=
-
  # Debug symbols
  if test "x$TOOLCHAIN_TYPE" = xgcc; then
-    if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
-      # Check if compiler supports -fdebug-prefix-map. If so, use that to make
-      # the debug symbol paths resolve to paths relative to the workspace root.
-      workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
-      DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}="
-      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}],
-        IF_FALSE: [
-            DEBUG_PREFIX_CFLAGS=
-        ]
-      )
-    fi
-
    CFLAGS_DEBUG_SYMBOLS="-g"
    ASFLAGS_DEBUG_SYMBOLS="-g"
  elif test "x$TOOLCHAIN_TYPE" = xclang; then
-    if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
-      # Check if compiler supports -fdebug-prefix-map. If so, use that to make
-      # the debug symbol paths resolve to paths relative to the workspace root.
-      workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
-      DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}="
-      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}],
-        IF_FALSE: [
-            DEBUG_PREFIX_CFLAGS=
-        ]
-      )
-    fi
-
    CFLAGS_DEBUG_SYMBOLS="-g"
    ASFLAGS_DEBUG_SYMBOLS="-g"
  elif test "x$TOOLCHAIN_TYPE" = xxlc; then
@@ -136,11 +108,6 @@ AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS],
    CFLAGS_DEBUG_SYMBOLS="-Z7"
  fi

-  if test "x$DEBUG_PREFIX_CFLAGS" != x; then
-    CFLAGS_DEBUG_SYMBOLS="$CFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS"
-    ASFLAGS_DEBUG_SYMBOLS="$ASFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS"
-  fi
-
  AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
  AC_SUBST(ASFLAGS_DEBUG_SYMBOLS)
 ])
@@ -170,7 +137,7 @@ AC_DEFUN([FLAGS_SETUP_WARNINGS],
      DISABLED_WARNINGS="4800"
      if test "x$TOOLCHAIN_VERSION" = x2017; then
        # VS2017 incorrectly triggers this warning for constexpr
-        DISABLED_WARNINGS+=" 4307"
+        DISABLED_WARNINGS="$DISABLED_WARNINGS 4307"
      fi
      ;;

@@ -192,7 +159,6 @@ AC_DEFUN([FLAGS_SETUP_WARNINGS],

    clang)
      DISABLE_WARNING_PREFIX="-Wno-"
-      BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
      CFLAGS_WARNINGS_ARE_ERRORS="-Werror"

      # Additional warnings that are not activated by -Wall and -Wextra
@@ -812,12 +778,16 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
              FILE_MACRO_CFLAGS=
          ]
      )
+      # -fdebug-prefix-map is supported by all modern versions of gcc/clang
+      DEBUG_PREFIX_CFLAGS=" -fdebug-prefix-map=${workspace_root_trailing_slash}="
    elif test "x$TOOLCHAIN_TYPE" = xmicrosoft &&
        test "x$ENABLE_REPRODUCIBLE_BUILD" = xtrue; then
      # There is a known issue with the pathmap if the mapping is made to the
      # empty string. Add a minimal string "s" as prefix to work around this.
+      workspace_root_win=`$FIXPATH_BASE print "${WORKSPACE_ROOT%/}"`
      # PATHMAP_FLAGS is also added to LDFLAGS in flags-ldflags.m4.
-      PATHMAP_FLAGS="-pathmap:${WORKSPACE_ROOT}=s"
+      PATHMAP_FLAGS="-pathmap:${workspace_root_win//\//\\\\}=s \
+          -pathmap:${workspace_root_win}=s"
      FILE_MACRO_CFLAGS="$PATHMAP_FLAGS"
      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}],
          PREFIX: $3,
@@ -842,12 +812,12 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
      $TOOLCHAIN_CFLAGS_JVM ${$1_TOOLCHAIN_CFLAGS_JVM} \
      $OS_CFLAGS $OS_CFLAGS_JVM $CFLAGS_OS_DEF_JVM $DEBUG_CFLAGS_JVM \
      $WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG $FILE_MACRO_CFLAGS \
-      $REPRODUCIBLE_CFLAGS"
+      $REPRODUCIBLE_CFLAGS $DEBUG_PREFIX_CFLAGS"

  CFLAGS_JDK_COMMON="$ALWAYS_CFLAGS_JDK $ALWAYS_DEFINES_JDK $TOOLCHAIN_CFLAGS_JDK \
      $OS_CFLAGS $CFLAGS_OS_DEF_JDK $DEBUG_CFLAGS_JDK $DEBUG_OPTIONS_FLAGS_JDK \
      $WARNING_CFLAGS $WARNING_CFLAGS_JDK $DEBUG_SYMBOLS_CFLAGS_JDK \
-      $FILE_MACRO_CFLAGS $REPRODUCIBLE_CFLAGS"
+      $FILE_MACRO_CFLAGS $REPRODUCIBLE_CFLAGS $DEBUG_PREFIX_CFLAGS"

  # Use ${$2EXTRA_CFLAGS} to block EXTRA_CFLAGS to be added to build flags.
  # (Currently we don't have any OPENJDK_BUILD_EXTRA_CFLAGS, but that might
--- a/make/autoconf/flags-ldflags.m4
+++ b/make/autoconf/flags-ldflags.m4
@@ -32,16 +32,10 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS],

  # Setup the target toolchain

+  # The target dir matches the name of VM variant
+  TARGET_JVM_VARIANT_PATH=$JVM_VARIANT_MAIN
+
  # On some platforms (mac) the linker warns about non existing -L dirs.
-  # For any of the variants server, client or minimal, the dir matches the
-  # variant name. The "main" variant should be used for linking. For the
-  # rest, the dir is just server.
-  if HOTSPOT_CHECK_JVM_VARIANT(server) || HOTSPOT_CHECK_JVM_VARIANT(client) \
-      || HOTSPOT_CHECK_JVM_VARIANT(minimal); then
-    TARGET_JVM_VARIANT_PATH=$JVM_VARIANT_MAIN
-  else
-    TARGET_JVM_VARIANT_PATH=server
-  fi
  FLAGS_SETUP_LDFLAGS_CPU_DEP([TARGET])

  # Setup the build toolchain
--- a/make/autoconf/flags-other.m4
+++ b/make/autoconf/flags-other.m4
@@ -82,6 +82,14 @@ AC_DEFUN([FLAGS_SETUP_ASFLAGS],
  elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
    BASIC_ASFLAGS="-nologo -c"
  fi
+
+  if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
+    if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
+      workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
+      BASIC_ASFLAGS+=" -fdebug-prefix-map=${workspace_root_trailing_slash}="
+    fi
+  fi
+
  AC_SUBST(BASIC_ASFLAGS)

  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
@@ -89,11 +97,12 @@ AC_DEFUN([FLAGS_SETUP_ASFLAGS],

    # Fix linker warning.
    # Code taken from make/autoconf/flags-cflags.m4 and adapted.
-    JVM_BASIC_ASFLAGS+=" -DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \
+    JVM_BASIC_ASFLAGS="$JVM_BASIC_ASFLAGS \
+        -DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \
        -mmacosx-version-min=$MACOSX_VERSION_MIN"

    if test -n "$MACOSX_VERSION_MAX"; then
-        JVM_BASIC_ASFLAGS+=" $OS_CFLAGS \
+        JVM_BASIC_ASFLAGS="$JVM_BASIC_ASFLAGS $OS_CFLAGS \
            -DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS"
    fi
  fi
--- a/make/autoconf/flags.m4
+++ b/make/autoconf/flags.m4
@@ -215,8 +215,21 @@ AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS],
      $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT"
      $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT"
    elif test "x$TOOLCHAIN_TYPE" = xclang; then
-      $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT"
-      $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT"
+      if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
+        # -isysroot has no effect on linux
+        # https://bugs.llvm.org/show_bug.cgi?id=11503
+        $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT"
+        $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT"
+        if test -d "$DEVKIT_TOOLCHAIN_PATH"; then
+          # In devkits, gcc is not located in the sysroot.
+          # use --gcc-toolchain to let clang find the gcc installation.
+          $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS --gcc-toolchain=$DEVKIT_TOOLCHAIN_PATH/.."
+          $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS --gcc-toolchain=$DEVKIT_TOOLCHAIN_PATH/.."
+        fi
+      else
+        $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT"
+        $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT"
+      fi
    fi
  fi

--- a/make/autoconf/help.m4
+++ b/make/autoconf/help.m4
@@ -82,6 +82,14 @@ cygwin_help() {
      PKGHANDLER_COMMAND="( cd <location of cygwin setup.exe> && cmd /c setup -q -P make )"
      HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
      ;;
+    i686-w64-mingw32-gcc)
+      PKGHANDLER_COMMAND="( cd <location of cygwin setup.exe> && cmd /c setup -q -P gcc-core i686-w64-mingw32-gcc-core mingw64-i686-glib2.0 )"
+      HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
+      ;;
+    x86_64-w64-mingw32-gcc)
+      PKGHANDLER_COMMAND="( cd <location of cygwin setup.exe> && cmd /c setup -q -P gcc-core x86_64-w64-mingw32-gcc-core mingw64-x86_64-glib2.0 )"
+      HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
+      ;;
  esac
 }

@@ -297,7 +305,7 @@ AC_DEFUN_ONCE([HELP_PRINT_SUMMARY_AND_WARNINGS],

  printf "\n"
  printf "Build performance summary:\n"
-  printf "* Cores to use:   $JOBS\n"
+  printf "* Build jobs:     $JOBS\n"
  printf "* Memory limit:   $MEMORY_SIZE MB\n"
  if test "x$CCACHE_STATUS" != "x"; then
    printf "* ccache status:  $CCACHE_STATUS\n"
--- a/make/autoconf/hotspot.m4
+++ b/make/autoconf/hotspot.m4
@@ -83,19 +83,10 @@ AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_VARIANTS],
    AC_MSG_ERROR([Cannot continue])
  fi

-  # All "special" variants share the same output directory ("server")
-  VALID_MULTIPLE_JVM_VARIANTS="server client minimal"
-  UTIL_GET_NON_MATCHING_VALUES(INVALID_MULTIPLE_VARIANTS, $JVM_VARIANTS, \
-      $VALID_MULTIPLE_JVM_VARIANTS)
-  if  test "x$INVALID_MULTIPLE_VARIANTS" != x && \
-      test "x$BUILDING_MULTIPLE_JVM_VARIANTS" = xtrue; then
-    AC_MSG_ERROR([You can only build multiple variants using these variants: '$VALID_MULTIPLE_JVM_VARIANTS'])
-  fi
-
  # The "main" variant is the one used by other libs to link against during the
  # build.
  if test "x$BUILDING_MULTIPLE_JVM_VARIANTS" = "xtrue"; then
-    MAIN_VARIANT_PRIO_ORDER="server client minimal"
+    MAIN_VARIANT_PRIO_ORDER="server client minimal zero"
    for variant in $MAIN_VARIANT_PRIO_ORDER; do
      if HOTSPOT_CHECK_JVM_VARIANT($variant); then
        JVM_VARIANT_MAIN="$variant"
--- a/make/autoconf/jdk-options.m4
+++ b/make/autoconf/jdk-options.m4
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -766,3 +766,173 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_REPRODUCIBLE_BUILD],
  AC_SUBST(SOURCE_DATE)
  AC_SUBST(ENABLE_REPRODUCIBLE_BUILD)
 ])
+
+################################################################################
+#
+# Helper function to build binutils from source.
+#
+AC_DEFUN([JDKOPT_BUILD_BINUTILS],
+[
+  BINUTILS_SRC="$with_binutils_src"
+  UTIL_FIXUP_PATH(BINUTILS_SRC)
+
+  if ! test -d $BINUTILS_SRC; then
+    AC_MSG_ERROR([--with-binutils-src is not pointing to a directory])
+  fi
+  if ! test -x $BINUTILS_SRC/configure; then
+    AC_MSG_ERROR([--with-binutils-src does not look like a binutils source directory])
+  fi
+
+  if test -e $BINUTILS_SRC/bfd/libbfd.a && \
+      test -e $BINUTILS_SRC/opcodes/libopcodes.a && \
+      test -e $BINUTILS_SRC/libiberty/libiberty.a && \
+      test -e $BINUTILS_SRC/zlib/libz.a; then
+    AC_MSG_NOTICE([Found binutils binaries in binutils source directory -- not building])
+  else
+    # On Windows, we cannot build with the normal Microsoft CL, but must instead use
+    # a separate mingw toolchain.
+    if test "x$OPENJDK_BUILD_OS" = xwindows; then
+      if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
+        target_base="i686-w64-mingw32"
+      else
+        target_base="$OPENJDK_TARGET_CPU-w64-mingw32"
+      fi
+      binutils_cc="$target_base-gcc"
+      binutils_target="--host=$target_base --target=$target_base"
+      # Somehow the uint typedef is not included when building with mingw
+      binutils_cflags="-Duint=unsigned"
+      compiler_version=`$binutils_cc --version 2>&1`
+      if ! [ [[ "$compiler_version" =~ GCC ]] ]; then
+        AC_MSG_NOTICE([Could not find correct mingw compiler $binutils_cc.])
+        HELP_MSG_MISSING_DEPENDENCY([$binutils_cc])
+        AC_MSG_ERROR([Cannot continue. $HELP_MSG])
+      else
+        AC_MSG_NOTICE([Using compiler $binutils_cc with version $compiler_version])
+      fi
+    elif test "x$OPENJDK_BUILD_OS" = xmacosx; then
+      if test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
+        binutils_target="--enable-targets=aarch64-darwin"
+      else
+        binutils_target=""
+      fi
+    else
+      binutils_cc="$CC $SYSROOT_CFLAGS"
+      binutils_target=""
+    fi
+    binutils_cflags="$binutils_cflags $MACHINE_FLAG $JVM_PICFLAG $C_O_FLAG_NORM"
+
+    AC_MSG_NOTICE([Running binutils configure])
+    AC_MSG_NOTICE([configure command line: ./configure --disable-nls CFLAGS="$binutils_cflags" CC="$binutils_cc" $binutils_target])
+    saved_dir=`pwd`
+    cd "$BINUTILS_SRC"
+    ./configure --disable-nls CFLAGS="$binutils_cflags" CC="$binutils_cc" $binutils_target
+    if test $? -ne 0 || ! test -e $BINUTILS_SRC/Makefile; then
+      AC_MSG_NOTICE([Automatic building of binutils failed on configure. Try building it manually])
+      AC_MSG_ERROR([Cannot continue])
+    fi
+    AC_MSG_NOTICE([Running binutils make])
+    $MAKE all-opcodes
+    if test $? -ne 0; then
+      AC_MSG_NOTICE([Automatic building of binutils failed on make. Try building it manually])
+      AC_MSG_ERROR([Cannot continue])
+    fi
+    cd $saved_dir
+    AC_MSG_NOTICE([Building of binutils done])
+  fi
+
+  BINUTILS_DIR="$BINUTILS_SRC"
+])
+
+################################################################################
+#
+# Determine if hsdis should be built, and if so, with which backend.
+#
+AC_DEFUN_ONCE([JDKOPT_SETUP_HSDIS],
+[
+  AC_ARG_WITH([hsdis], [AS_HELP_STRING([--with-hsdis],
+      [what hsdis backend to use ('none', 'binutils') @<:@none@:>@])])
+
+  AC_ARG_WITH([binutils], [AS_HELP_STRING([--with-binutils],
+      [where to find the binutils files needed for hsdis/binutils])])
+
+  AC_ARG_WITH([binutils-src], [AS_HELP_STRING([--with-binutils-src],
+      [where to find the binutils source for building])])
+
+  AC_MSG_CHECKING([what hsdis backend to use])
+
+  if test "x$with_hsdis" = xyes; then
+    AC_MSG_ERROR([--with-hsdis must have a value])
+  elif test "x$with_hsdis" = xnone || test "x$with_hsdis" = xno || test "x$with_hsdis" = x; then
+    HSDIS_BACKEND=none
+    AC_MSG_RESULT(['none', hsdis will not be built])
+  elif test "x$with_hsdis" = xbinutils; then
+    HSDIS_BACKEND=binutils
+    AC_MSG_RESULT(['binutils'])
+
+    # We need the binutils static libs and includes.
+    if test "x$with_binutils_src" != x; then
+      # Try building the source first. If it succeeds, it sets $BINUTILS_DIR.
+      JDKOPT_BUILD_BINUTILS
+    fi
+
+    if test "x$with_binutils" != x; then
+      BINUTILS_DIR="$with_binutils"
+    fi
+
+    binutils_system_error=""
+    HSDIS_LIBS=""
+    if test "x$BINUTILS_DIR" = xsystem; then
+      AC_CHECK_LIB(bfd, bfd_openr, [ HSDIS_LIBS="-lbfd" ], [ binutils_system_error="libbfd not found" ])
+      AC_CHECK_LIB(opcodes, disassembler, [ HSDIS_LIBS="$HSDIS_LIBS -lopcodes" ], [ binutils_system_error="libopcodes not found" ])
+      AC_CHECK_LIB(iberty, xmalloc, [ HSDIS_LIBS="$HSDIS_LIBS -liberty" ], [ binutils_system_error="libiberty not found" ])
+      AC_CHECK_LIB(z, deflate, [ HSDIS_LIBS="$HSDIS_LIBS -lz" ], [ binutils_system_error="libz not found" ])
+      HSDIS_CFLAGS="-DLIBARCH_$OPENJDK_TARGET_CPU_LEGACY_LIB"
+    elif test "x$BINUTILS_DIR" != x; then
+      if test -e $BINUTILS_DIR/bfd/libbfd.a && \
+          test -e $BINUTILS_DIR/opcodes/libopcodes.a && \
+          test -e $BINUTILS_DIR/libiberty/libiberty.a; then
+        HSDIS_CFLAGS="-I$BINUTILS_DIR/include -I$BINUTILS_DIR/bfd -DLIBARCH_$OPENJDK_TARGET_CPU_LEGACY_LIB"
+        HSDIS_LIBS="$BINUTILS_DIR/bfd/libbfd.a $BINUTILS_DIR/opcodes/libopcodes.a $BINUTILS_DIR/libiberty/libiberty.a $BINUTILS_DIR/zlib/libz.a"
+      fi
+    fi
+
+    AC_MSG_CHECKING([for binutils to use with hsdis])
+    case "x$BINUTILS_DIR" in
+      xsystem)
+        if test "x$OPENJDK_TARGET_OS" != xlinux; then
+          AC_MSG_RESULT([invalid])
+          AC_MSG_ERROR([binutils on system is supported for Linux only])
+        elif test "x$binutils_system_error" = x; then
+          AC_MSG_RESULT([system])
+          HSDIS_CFLAGS="$HSDIS_CFLAGS -DSYSTEM_BINUTILS"
+        else
+          AC_MSG_RESULT([invalid])
+          AC_MSG_ERROR([$binutils_system_error])
+        fi
+        ;;
+      x)
+        AC_MSG_RESULT([missing])
+        AC_MSG_NOTICE([--with-hsdis=binutils requires specifying a binutils installation.])
+        AC_MSG_NOTICE([Download binutils from https://www.gnu.org/software/binutils and unpack it,])
+        AC_MSG_NOTICE([and point --with-binutils-src to the resulting directory, or use])
+        AC_MSG_NOTICE([--with-binutils to point to a pre-built binutils installation.])
+        AC_MSG_ERROR([Cannot continue])
+        ;;
+      *)
+        if test "x$HSDIS_LIBS" != x; then
+          AC_MSG_RESULT([$BINUTILS_DIR])
+        else
+          AC_MSG_RESULT([invalid])
+          AC_MSG_ERROR([$BINUTILS_DIR does not contain a proper binutils installation])
+        fi
+        ;;
+    esac
+  else
+    AC_MSG_RESULT([invalid])
+    AC_MSG_ERROR([Incorrect hsdis backend "$with_hsdis"])
+  fi
+
+  AC_SUBST(HSDIS_BACKEND)
+  AC_SUBST(HSDIS_CFLAGS)
+  AC_SUBST(HSDIS_LIBS)
+])
--- a/make/autoconf/jdk-version.m4
+++ b/make/autoconf/jdk-version.m4
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -536,7 +536,7 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
    MACOSX_BUNDLE_BUILD_VERSION="$VERSION_BUILD"
    # If VERSION_OPT consists of only numbers and periods, add it.
    if [ [[ $VERSION_OPT =~ ^[0-9\.]+$ ]] ]; then
-      MACOSX_BUNDLE_BUILD_VERSION+=".$VERSION_OPT"
+      MACOSX_BUNDLE_BUILD_VERSION="$MACOSX_BUNDLE_BUILD_VERSION.$VERSION_OPT"
    fi
  fi
  AC_SUBST(MACOSX_BUNDLE_BUILD_VERSION)
--- a/make/autoconf/lib-ffi.m4
+++ b/make/autoconf/lib-ffi.m4
@@ -149,7 +149,7 @@ AC_DEFUN_ONCE([LIB_SETUP_LIBFFI],
          else
            AC_MSG_ERROR([Could not locate libffi.so.? for bundling])
          fi
-        elif test "x${OPENJDK_TARGET_CPU}" = "xx86_64"; then
+        elif test "x${OPENJDK_TARGET_CPU}" = "xx86_64" || test "x${OPENJDK_TARGET_CPU}" = "xaarch64"; then
          if test -e ${SYSROOT}/usr/lib64/libffi.so.? ; then
            LIBFFI_LIB_FILE="${SYSROOT}/usr/lib64/libffi.so.?"
          elif test -e ${SYSROOT}/usr/lib/x86_64-linux-gnu/libffi.so.? ; then
--- a/make/autoconf/libraries.m4
+++ b/make/autoconf/libraries.m4
@@ -43,11 +43,9 @@ AC_DEFUN_ONCE([LIB_DETERMINE_DEPENDENCIES],
  if test "x$OPENJDK_TARGET_OS" = xwindows || test "x$OPENJDK_TARGET_OS" = xmacosx; then
    # No X11 support on windows or macosx
    NEEDS_LIB_X11=false
-  elif test "x$ENABLE_HEADLESS_ONLY" = xtrue; then
-    # No X11 support needed when building headless only
-    NEEDS_LIB_X11=false
  else
-    # All other instances need X11
+    # All other instances need X11, even if building headless only, libawt still
+    # needs X11 headers.
    NEEDS_LIB_X11=true
  fi

--- a/make/autoconf/spec.gmk.in
+++ b/make/autoconf/spec.gmk.in
@@ -54,6 +54,9 @@ MAKE := @MAKE@
 # Make sure all shell commands are executed with the C locale
 export LC_ALL := C

+# Make sure we override any local CLASSPATH variable
+export CLASSPATH := @CLASSPATH@
+
 # The default make arguments
 MAKE_ARGS = $(MAKE_LOG_FLAGS) -r -R -I $(TOPDIR)/make/common SPEC=$(SPEC) \
    MAKE_LOG_FLAGS="$(MAKE_LOG_FLAGS)" $(MAKE_LOG_VARS)
@@ -356,6 +359,10 @@ ENABLE_COMPATIBLE_CDS_ALIGNMENT := @ENABLE_COMPATIBLE_CDS_ALIGNMENT@

 ALLOW_ABSOLUTE_PATHS_IN_OUTPUT := @ALLOW_ABSOLUTE_PATHS_IN_OUTPUT@

+HSDIS_BACKEND := @HSDIS_BACKEND@
+HSDIS_CFLAGS := @HSDIS_CFLAGS@
+HSDIS_LIBS := @HSDIS_LIBS@
+
 # The boot jdk to use. This is overridden in bootcycle-spec.gmk. Make sure to keep
 # it in sync.
 BOOT_JDK:=@BOOT_JDK@
--- a/Show More
+++ b/Show More
				`@@ -1 +0,0 @@`
				`--with-vendor-vm-bug-url=https://youtrack.jetbrains.com/issues/JBR`