JBR-3908 add MACOSX_VERSION_MAX parameter into cofnigure

.github/workflows/submit.yml

@@ -10,7 +10,7 @@ on:
       platforms:
         description: "Platform(s) to execute on"
         required: true
-        default: "Linux additional (hotspot only), Linux x64, Linux x86, Windows aarch64, Windows x64, macOS x64"
+        default: "Linux additional (hotspot only), Linux x64, Linux x86, Windows x64, macOS x64"
 
 jobs:
   prerequisites:
@@ -22,7 +22,6 @@ jobs:
       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 }}
-      platform_windows_aarch64: ${{ steps.check_platforms.outputs.platform_windows_aarch64 }}
       platform_windows_x64: ${{ steps.check_platforms.outputs.platform_windows_x64 }}
       platform_macos_x64: ${{ steps.check_platforms.outputs.platform_macos_x64 }}
       platform_macos_aarch64: ${{ steps.check_platforms.outputs.platform_macos_aarch64 }}
@@ -39,7 +38,6 @@ jobs:
           echo "::set-output name=platform_linux_additional::${{ contains(github.event.inputs.platforms, 'linux additional (hotspot only)') || (github.event.inputs.platforms == '' && (secrets.JDK_SUBMIT_PLATFORMS == '' || contains(secrets.JDK_SUBMIT_PLATFORMS, 'linux additional (hotspot only)'))) }}"
           echo "::set-output name=platform_linux_x64::${{ contains(github.event.inputs.platforms, 'linux x64') || (github.event.inputs.platforms == '' && (secrets.JDK_SUBMIT_PLATFORMS == '' || contains(secrets.JDK_SUBMIT_PLATFORMS, 'linux x64'))) }}"
           echo "::set-output name=platform_linux_x86::${{ contains(github.event.inputs.platforms, 'linux x86') || (github.event.inputs.platforms == '' && (secrets.JDK_SUBMIT_PLATFORMS == '' || contains(secrets.JDK_SUBMIT_PLATFORMS, 'linux x86'))) }}"
-          echo "::set-output name=platform_windows_aarch64::${{ contains(github.event.inputs.platforms, 'windows aarch64') || (github.event.inputs.platforms == '' && (secrets.JDK_SUBMIT_PLATFORMS == '' || contains(secrets.JDK_SUBMIT_PLATFORMS, 'windows aarch64'))) }}"
           echo "::set-output name=platform_windows_x64::${{ contains(github.event.inputs.platforms, 'windows x64') || (github.event.inputs.platforms == '' && (secrets.JDK_SUBMIT_PLATFORMS == '' || contains(secrets.JDK_SUBMIT_PLATFORMS, 'windows x64'))) }}"
           echo "::set-output name=platform_macos_x64::${{ contains(github.event.inputs.platforms, 'macos x64') || (github.event.inputs.platforms == '' && (secrets.JDK_SUBMIT_PLATFORMS == '' || contains(secrets.JDK_SUBMIT_PLATFORMS, 'macos x64'))) }}"
           echo "::set-output name=platform_macos_aarch64::${{ contains(github.event.inputs.platforms, 'macos aarch64') || (github.event.inputs.platforms == '' && (secrets.JDK_SUBMIT_PLATFORMS == '' || contains(secrets.JDK_SUBMIT_PLATFORMS, 'macos aarch64'))) }}"
@@ -121,7 +119,7 @@ jobs:
             artifact: -debug
 
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -250,7 +248,7 @@ jobs:
             artifact: -debug
 
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -341,7 +339,6 @@ jobs:
         run: >
           if ! grep --include=test-summary.txt -lqr build/*/test-results -e "TEST SUCCESS" ; then
             cat build/*/test-results/*/text/newfailures.txt ;
-            cat build/*/test-results/*/text/other_errors.txt ;
             exit 1 ;
           fi
 
@@ -432,7 +429,7 @@ jobs:
             gnu-arch: powerpc64le
 
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -580,7 +577,7 @@ jobs:
 
     # Reduced 32-bit build uses the same boot JDK as 64-bit build
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -717,7 +714,7 @@ jobs:
 
     # Reduced 32-bit build uses the same boot JDK as 64-bit build
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -808,7 +805,6 @@ jobs:
         run: >
           if ! grep --include=test-summary.txt -lqr build/*/test-results -e "TEST SUCCESS" ; then
             cat build/*/test-results/*/text/newfailures.txt ;
-            cat build/*/test-results/*/text/other_errors.txt ;
             exit 1 ;
           fi
 
@@ -851,16 +847,17 @@ jobs:
           path: ~/linux-x86${{ matrix.artifact }}_testsupport_${{ env.logsuffix }}.zip
         continue-on-error: true
 
-  windows_aarch64_build:
-    name: Windows aarch64
+  windows_x64_build:
+    name: Windows x64
     runs-on: "windows-2019"
     needs: prerequisites
-    if: needs.prerequisites.outputs.should_run != 'false' && needs.prerequisites.outputs.platform_windows_aarch64 != 'false'
+    if: needs.prerequisites.outputs.should_run != 'false' && needs.prerequisites.outputs.platform_windows_x64 != 'false'
 
     strategy:
       fail-fast: false
       matrix:
         flavor:
+          - build release
           - build debug
         include:
           - flavor: build debug
@@ -886,96 +883,7 @@ jobs:
         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"
-          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 $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow
-
-      - name: Checkout the source
-        uses: actions/checkout@v2
-        with:
-          path: jdk
-
-      - name: Restore boot JDK from cache
-        id: bootjdk
-        uses: actions/cache@v2
-        with:
-          path: ~/bootjdk/${{ env.BOOT_JDK_VERSION }}
-          key: bootjdk-${{ runner.os }}-${{ env.BOOT_JDK_VERSION }}-${{ env.BOOT_JDK_SHA256 }}-v1
-
-      - name: Download boot JDK
-        run: |
-          mkdir -p "$HOME\bootjdk\$env:BOOT_JDK_VERSION"
-          & curl -L "$env:BOOT_JDK_URL" -o "$HOME/bootjdk/$env:BOOT_JDK_FILENAME"
-          $FileHash = Get-FileHash -Algorithm SHA256 "$HOME/bootjdk/$env:BOOT_JDK_FILENAME"
-          $FileHash.Hash -eq $env:BOOT_JDK_SHA256
-          & tar -xf "$HOME/bootjdk/$env:BOOT_JDK_FILENAME" -C "$HOME/bootjdk/$env:BOOT_JDK_VERSION"
-          Get-ChildItem "$HOME\bootjdk\$env:BOOT_JDK_VERSION\*\*" | Move-Item -Destination "$HOME\bootjdk\$env:BOOT_JDK_VERSION"
-        if: steps.bootjdk.outputs.cache-hit != 'true'
-
-      - name: Ensure a specific version of MSVC is installed
-        run: >
-          Start-Process -FilePath 'C:\Program Files (x86)\Microsoft Visual Studio\Installer\vs_installer.exe' -Wait -NoNewWindow -ArgumentList
-          'modify --installPath "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise" --quiet
-          --add Microsoft.VisualStudio.Component.VC.14.29.arm64'
-
-      - name: Configure
-        run: >
-          $env:Path = "$HOME\cygwin\cygwin64\bin;$HOME\cygwin\cygwin64\bin;$env:Path" ;
-          $env:Path = $env:Path -split ";" -match "C:\\Windows|PowerShell|cygwin" -join ";" ;
-          $env:BOOT_JDK = cygpath "$HOME/bootjdk/$env:BOOT_JDK_VERSION" ;
-          & bash configure
-          --with-conf-name=windows-aarch64
-          --with-msvc-toolset-version=14.29
-          --openjdk-target=aarch64-unknown-cygwin
-          ${{ matrix.flags }}
-          --with-version-opt="$env:GITHUB_ACTOR-$env:GITHUB_SHA"
-          --with-version-build=0
-          --with-boot-jdk="$env:BOOT_JDK"
-          --with-default-make-target="hotspot"
-        working-directory: jdk
-
-      - name: Build
-        run: |
-          $env:Path = "$HOME\cygwin\cygwin64\bin;$HOME\cygwin\cygwin64\bin;$env:Path" ;
-          $env:Path = $env:Path -split ";" -match "C:\\Windows|PowerShell|cygwin" -join ";" ;
-          & make CONF_NAME=windows-aarch64
-        working-directory: jdk
-
-  windows_x64_build:
-    name: Windows x64
-    runs-on: "windows-2019"
-    needs: prerequisites
-    if: needs.prerequisites.outputs.should_run != 'false' && needs.prerequisites.outputs.platform_windows_x64 != 'false'
-
-    strategy:
-      fail-fast: false
-      matrix:
-        flavor:
-          - build release
-          - build debug
-        include:
-          - flavor: build debug
-            flags: --enable-debug
-            artifact: -debug
-
-    env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
-      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 packages from cache
-        id: cygwin
-        uses: actions/cache@v2
-        with:
-          path: ~/cygwin/packages
-          key: cygwin-packages-${{ runner.os }}-v1
-
-      - name: Install cygwin
-        run: |
-          New-Item -Force -ItemType directory -Path "$HOME\cygwin"
-          & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
-          Start-Process -FilePath "$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 $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow
+          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages 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@v2
@@ -1109,7 +1017,7 @@ jobs:
             artifact: -debug
 
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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: "${{ fromJson(needs.prerequisites.outputs.dependencies).WINDOWS_X64_BOOT_JDK_URL }}"
@@ -1147,7 +1055,7 @@ jobs:
         run: |
           New-Item -Force -ItemType directory -Path "$HOME\cygwin"
           & curl -L "https://www.cygwin.com/setup-x86_64.exe" -o "$HOME/cygwin/setup-x86_64.exe"
-          Start-Process -FilePath "$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 $HOME\cygwin\packages --site http://mirrors.kernel.org/sourceware/cygwin --no-desktop --no-shortcuts --no-startmenu --no-admin" -Wait -NoNewWindow
+          Start-Process -FilePath "$HOME\cygwin\setup-x86_64.exe" -ArgumentList "--quiet-mode --packages 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
@@ -1220,7 +1128,6 @@ jobs:
         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 ;
-            Get-Content -Path build\*\test-results\*\*\other_errors.txt ;
             exit 1
           }
 
@@ -1284,7 +1191,7 @@ jobs:
             artifact: -debug
 
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -1386,7 +1293,7 @@ jobs:
             artifact: -debug
 
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -1517,7 +1424,7 @@ jobs:
             artifact: -debug
 
     env:
-      JDK_VERSION: "${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_FEATURE }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_INTERIM }}.${{ fromJson(needs.prerequisites.outputs.dependencies).DEFAULT_VERSION_UPDATE }}"
+      JDK_VERSION: "${{ 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 }}"
@@ -1614,7 +1521,6 @@ jobs:
         run: >
           if ! grep --include=test-summary.txt -lqr build/*/test-results -e "TEST SUCCESS" ; then
             cat build/*/test-results/*/text/newfailures.txt ;
-            cat build/*/test-results/*/text/other_errors.txt ;
             exit 1 ;
           fi
 
@@ -1665,7 +1571,6 @@ jobs:
     needs:
       - prerequisites
       - linux_additional_build
-      - windows_aarch64_build
       - linux_x64_test
       - linux_x86_test
       - windows_x64_test

.jcheck/conf

@@ -1,7 +1,6 @@
 [general]
-project=jdk-updates
+project=jdk
 jbs=JDK
-version=17.0.3
 
 [checks]
 error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace,problemlists

README.md

@@ -1,7 +1,175 @@
 [![official JetBrains project](http://jb.gg/badges/official.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
 
 # Welcome to JetBrains Runtime!
-<a name="jetbrains-runtime"></a>
 
-Do not use this branch. It is [outdated](https://youtrack.jetbrains.com/issue/JBR-4375/New-branch-naming-policy-in-JBR-repo).
-Please use [jbr17](https://github.com/JetBrains/JetBrainsRuntime/tree/jbr17) instead. 
+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 |
+|  ---        | ---        | ---           |
+| 2021.3      | [17-b106.1](https://github.com/JetBrains/JetBrainsRuntime/releases/tag/jbr17b106.1) | 28-Sep-2021 |
+
+## Contents
+- [Welcome to JetBrains Runtime](#jetbrains-runtime)
+  - [Products Built on JetBrains Runtime](#products-built-on-jetbrains-runtime)
+  - [Getting Sources](#getting-sources)
+    - [macOS, Linux](#macos-linux)
+    - [Windows](#sources-windows)
+  - [Configuring the Build Environment](#configuring-the-build-environment)
+    - [Linux (Docker)](#linux-docker)
+    - [Ubuntu Linux](#ubuntu-linux)
+    - [Windows](#build-windows)
+    - [macOS](#macos)
+  - [Developing](#developing)
+  - [Contributing](#contributing)
+  - [Resources](#resources)
+
+## Products Built on JetBrains Runtime
+* [Android Studio](https://developer.android.com/studio). The official IDE for Google's Android operating system.
+* [CLion](https://www.jetbrains.com/clion/). A cross-platform IDE for C and C++ from JetBrains.
+* [DataGrip](https://www.jetbrains.com/datagrip/). The IDE for Databases and SQL from JetBrains.
+* [GoLand](https://www.jetbrains.com/go/). The cross-platform Go IDE from JetBrains.
+* [IntelliJ IDEA](https://www.jetbrains.com/idea/). The IDE for JVM from JetBrains.
+* [JProfiler](https://www.ej-technologies.com/products/jprofiler/overview.html). The Java profiler.
+* [PhpStorm](https://www.jetbrains.com/phpstorm/). The PHP IDE from JetBrains.
+* [PyCharm](https://www.jetbrains.com/pycharm/). The Python IDE from JetBrains.
+* [Rider](https://www.jetbrains.com/rider/). The cross-platform .NET IDE from JetBrains.
+* [RubyMine](https://www.jetbrains.com/ruby/). The Ruby and Rails IDE from JetBrains.
+* [WebStorm](https://www.jetbrains.com/webstorm/). The JavaScript IDE from JetBrains.
+* [YourKit](https://www.yourkit.com/). Java and .NET profilers.
+
+## Getting Sources
+### macOS, Linux
+```
+git config --global core.autocrlf input
+git clone git@github.com:JetBrains/JetBrainsRuntime.git
+```
+
+### Windows
+<a name="sources-windows"></a>
+```
+git config --global core.autocrlf false
+git clone git@github.com:JetBrains/JetBrainsRuntime.git
+```
+
+## Configuring the Build Environment
+Here are quick per-platform instructions for those who can't wait to get started. 
+Please refer to [OpenJDK build docs](https://openjdk.java.net/groups/build/doc/building.html) for in-depth
+coverage of all the details.
+
+> **_TIP:_**  To get a preliminary report of what's missing, run `./configure` and check its output. 
+> It would usually have a meaningful advice on how to solve the problem.
+
+### Linux (Docker)
+Create a container:
+```
+$ cd jb/project/docker
+$ docker build .
+...
+Successfully built 942ea9900054
+```
+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
+```
+
+### Ubuntu Linux
+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
+```
+Then run the following:
+```
+$ cd JetBrainsRuntime
+$ git checkout master17
+$ sh ./configure
+$ make images
+```
+This will build the release configuration under `./build/linux-x86_64-server-release/`.
+
+### Windows
+<a name="build-windows"></a>
+Install the following:
+* [Cygwin x64](http://www.cygwin.com/).
+  Required packages: `autoconf`, `binutils`, `cpio`, `diffutils`, `file`, `gawk`, `gcc-core`, `make`, `m4`, `unzip`, `zip`.  
+  Install those together with Cygwin.
+* [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#)).
+  If you have problems while configuring, read [Java tips on Cygwin](http://horstmann.com/articles/cygwin-tips.html).
+
+From the command line: 
+```
+"C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" amd64
+"c:\Program_Files\cygwin64\bin\mintty.exe" /bin/bash -l
+```
+The first command sets up environment variables, the second starts a Cygwin shell with the proper environment.  
+
+In the Cygwin shell: 
+```
+$ cd JetBrainsRuntime
+$ git checkout master17
+$ bash configure --with-toolchain-version=2019
+$ make images
+```
+This will build the release configuration under `./build/windows-x86_64-server-release/`.
+
+### 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#)).
+
+From the command line:
+```
+$ cd JetBrainsRuntime
+$ git checkout master17
+$ sh ./configure
+$ make images
+```
+This will build the release configuration under `./build/macosx-x86_64-server-release/`.
+
+## Developing
+You can use  [CLion](https://www.jetbrains.com/clion/) to develop native parts of the JetBrains Runtime and
+[IntelliJ IDEA](https://www.jetbrains.com/idea/) for the parts written in Java.
+Both require projects to be created.
+
+### CLion
+Run
+```
+$ make compile-commands
+```
+in the git root and open the resulting `build/.../compile_commands.json` file as a project.
+Then use `Tools | Compilation Database | Change Project Root` to point to git root of this repository.
+
+See also this detailed step-by-step tutorial for all platforms:
+[How to develop OpenJDK with CLion](https://blog.jetbrains.com/clion/2020/03/openjdk-with-clion/).
+
+### IDEA
+Run
+```
+$ sh ./bin/idea.sh
+```
+in the git root to generate project files (add `--help` for options). If you have multiple
+configurations (for example, `release` and `fastdebug`), supply the `--conf <conf_name>` argument.
+Then open the git root directory as a project in IDEA.
+
+## Contributing
+We are happy to receive your pull requests! 
+Before you submit one, please sign our [Contributor License Agreement (CLA)](https://www.jetbrains.com/agreements/cla/).
+
+## Resources
+* [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/).

doc/building.html

@@ -96,7 +96,6 @@
 <li><a href="#specific-build-issues">Specific Build Issues</a></li>
 <li><a href="#getting-help">Getting Help</a></li>
 </ul></li>
-<li><a href="#reproducible-builds">Reproducible Builds</a></li>
 <li><a href="#hints-and-suggestions-for-advanced-users">Hints and Suggestions for Advanced Users</a><ul>
 <li><a href="#bash-completion">Bash Completion</a></li>
 <li><a href="#using-multiple-configurations">Using Multiple Configurations</a></li>
@@ -507,7 +506,7 @@
 </ul>
 <h2 id="running-tests">Running Tests</h2>
 <p>Most of the JDK tests are using the <a href="http://openjdk.java.net/jtreg">JTReg</a> test framework. Make sure that your configuration knows where to find your installation of JTReg. If this is not picked up automatically, use the <code>--with-jtreg=&lt;path to jtreg home&gt;</code> option to point to the JTReg framework. Note that this option should point to the JTReg home, i.e. the top directory, containing <code>lib/jtreg.jar</code> etc.</p>
-<p>The <a href="https://wiki.openjdk.java.net/display/Adoption">Adoption Group</a> provides recent builds of jtreg <a href="https://ci.adoptopenjdk.net/view/Dependencies/job/dependency_pipeline/lastSuccessfulBuild/artifact/jtreg/">here</a>. Download the latest <code>.tar.gz</code> file, unpack it, and point <code>--with-jtreg</code> to the <code>jtreg</code> directory that you just unpacked.</p>
+<p>The <a href="https://wiki.openjdk.java.net/display/Adoption">Adoption Group</a> provides recent builds of jtreg <a href="https://ci.adoptopenjdk.net/view/Dependencies/job/jtreg/lastSuccessfulBuild/artifact">here</a>. Download the latest <code>.tar.gz</code> file, unpack it, and point <code>--with-jtreg</code> to the <code>jtreg</code> directory that you just unpacked.</p>
 <p>Building of Hotspot Gtest suite requires the source code of Google Test framework. The top directory, which contains both <code>googletest</code> and <code>googlemock</code> directories, should be specified via <code>--with-gtest</code>. The supported version of Google Test is 1.8.1, whose source code can be obtained:</p>
 <ul>
 <li>by downloading and unpacking the source bundle from <a href="https://github.com/google/googletest/releases/tag/release-1.8.1">here</a></li>
@@ -885,32 +884,6 @@ spawn failed</code></pre>
 <h3 id="getting-help">Getting Help</h3>
 <p>If none of the suggestions in this document helps you, or if you find what you believe is a bug in the build system, please contact the Build Group by sending a mail to <a href="mailto:build-dev@openjdk.java.net">build-dev@openjdk.java.net</a>. Please include the relevant parts of the configure and/or build log.</p>
 <p>If you need general help or advice about developing for the JDK, you can also contact the Adoption Group. See the section on <a href="#contributing-to-openjdk">Contributing to OpenJDK</a> for more information.</p>
-<h2 id="reproducible-builds">Reproducible Builds</h2>
-<p>Build reproducibility is the property of getting exactly the same bits out when building, every time, independent on who builds the product, or where. This is for many reasons a harder goal than it initially appears, but it is an important goal, for security reasons and others. Please see <a href="https://reproducible-builds.org">Reproducible Builds</a> for more information about the background and reasons for reproducible builds.</p>
-<p>Currently, it is not possible to build OpenJDK fully reproducibly, but getting there is an ongoing effort. There are some things you can do to minimize non-determinism and make a larger part of the build reproducible:</p>
-<ul>
-<li>Turn on build system support for reproducible builds</li>
-</ul>
-<p>Add the flag <code>--enable-reproducible-build</code> to your <code>configure</code> command line. This will turn on support for reproducible builds where it could otherwise be lacking.</p>
-<ul>
-<li>Do not rely on <code>configure</code>'s default adhoc version strings</li>
-</ul>
-<p>Default adhoc version strings OPT segment include user name, source directory and timestamp. You can either override just the OPT segment using <code>--with-version-opt=&lt;any fixed string&gt;</code>, or you can specify the entire version string using <code>--with-version-string=&lt;your version&gt;</code>.</p>
-<ul>
-<li>Specify how the build sets <code>SOURCE_DATE_EPOCH</code></li>
-</ul>
-<p>The JDK build system will set the <code>SOURCE_DATE_EPOCH</code> environment variable during building, depending on the value of the <code>--with-source-date</code> option for <code>configure</code>. The default value is <code>updated</code>, which means that <code>SOURCE_DATE_EPOCH</code> will be set to the current time each time you are running <code>make</code>.</p>
-<p>The <a href="https://reproducible-builds.org/docs/source-date-epoch/"><code>SOURCE_DATE_EPOCH</code> environment variable</a> is an industry standard, that many tools, such as gcc, recognize, and use in place of the current time when generating output.</p>
-<p>For reproducible builds, you need to set this to a fixed value. You can use the special value <code>version</code> which will use the nominal release date for the current JDK version, or a value describing a date, either an epoch based timestamp as an integer, or a valid ISO-8601 date.</p>
-<p><strong>Hint:</strong> If your build environment already sets <code>SOURCE_DATE_EPOCH</code>, you can propagate this using <code>--with-source-date=$SOURCE_DATE_EPOCH</code>.</p>
-<ul>
-<li>Specify a hotspot build time</li>
-</ul>
-<p>Set a fixed hotspot build time. This will be included in the hotspot library (<code>libjvm.so</code> or <code>jvm.dll</code>) and defaults to the current time when building hotspot. Use <code>--with-hotspot-build-time=&lt;any fixed string&gt;</code> for reproducible builds. It's a string so you don't need to format it specifically, so e.g. <code>n/a</code> will do. Another solution is to use the <code>SOURCE_DATE_EPOCH</code> variable, e.g. <code>--with-hotspot-build-time=$(date --date=@$SOURCE_DATE_EPOCH)</code>.</p>
-<ul>
-<li>Copyright year</li>
-</ul>
-<p>The copyright year in some generated text files are normally set to the current year. This can be overridden by <code>--with-copyright-year=&lt;year&gt;</code>. For fully reproducible builds, this needs to be set to a fixed value.</p>
 <h2 id="hints-and-suggestions-for-advanced-users">Hints and Suggestions for Advanced Users</h2>
 <h3 id="bash-completion">Bash Completion</h3>
 <p>The <code>configure</code> and <code>make</code> commands tries to play nice with bash command-line completion (using <code>&lt;tab&gt;</code> or <code>&lt;tab&gt;&lt;tab&gt;</code>). To use this functionality, make sure you enable completion in your <code>~/.bashrc</code> (see instructions for bash in your operating system).</p>

doc/building.md

@@ -848,7 +848,7 @@ containing `lib/jtreg.jar` etc.
 
 The [Adoption Group](https://wiki.openjdk.java.net/display/Adoption) provides
 recent builds of jtreg [here](
-https://ci.adoptopenjdk.net/view/Dependencies/job/dependency_pipeline/lastSuccessfulBuild/artifact/jtreg/).
+https://ci.adoptopenjdk.net/view/Dependencies/job/jtreg/lastSuccessfulBuild/artifact).
 Download the latest `.tar.gz` file, unpack it, and point `--with-jtreg` to the
 `jtreg` directory that you just unpacked.
 
@@ -1503,68 +1503,6 @@ If you need general help or advice about developing for the JDK, you can also
 contact the Adoption Group. See the section on [Contributing to OpenJDK](
 #contributing-to-openjdk) for more information.
 
-## Reproducible Builds
-
-Build reproducibility is the property of getting exactly the same bits out when
-building, every time, independent on who builds the product, or where. This is
-for many reasons a harder goal than it initially appears, but it is an important
-goal, for security reasons and others. Please see [Reproducible Builds](
-https://reproducible-builds.org) for more information about the background and
-reasons for reproducible builds.
-
-Currently, it is not possible to build OpenJDK fully reproducibly, but getting
-there is an ongoing effort. There are some things you can do to minimize
-non-determinism and make a larger part of the build reproducible:
-
-  * Turn on build system support for reproducible builds
-
-Add the flag `--enable-reproducible-build` to your `configure` command line.
-This will turn on support for reproducible builds where it could otherwise be
-lacking.
-
-  * Do not rely on `configure`'s default adhoc version strings
-
-Default adhoc version strings OPT segment include user name, source directory
-and timestamp. You can either override just the OPT segment using
-`--with-version-opt=<any fixed string>`, or you can specify the entire version
-string using `--with-version-string=<your version>`.
-
-  * Specify how the build sets `SOURCE_DATE_EPOCH`
-
-The JDK build system will set the `SOURCE_DATE_EPOCH` environment variable
-during building, depending on the value of the `--with-source-date` option for
-`configure`. The default value is `updated`, which means that
-`SOURCE_DATE_EPOCH` will be set to the current time each time you are running
-`make`.
-
-The [`SOURCE_DATE_EPOCH` environment variable](
-https://reproducible-builds.org/docs/source-date-epoch/) is an industry
-standard, that many tools, such as gcc, recognize, and use in place of the
-current time when generating output.
-
-For reproducible builds, you need to set this to a fixed value. You can use the
-special value `version` which will use the nominal release date for the current
-JDK version, or a value describing a date, either an epoch based timestamp as an
-integer, or a valid ISO-8601 date.
-
-**Hint:** If your build environment already sets `SOURCE_DATE_EPOCH`, you can
-propagate this using `--with-source-date=$SOURCE_DATE_EPOCH`.
-
-  * Specify a hotspot build time
-
-Set a fixed hotspot build time. This will be included in the hotspot library
-(`libjvm.so` or `jvm.dll`) and defaults to the current time when building
-hotspot. Use `--with-hotspot-build-time=<any fixed string>` for reproducible
-builds. It's a string so you don't need to format it specifically, so e.g. `n/a`
-will do. Another solution is to use the `SOURCE_DATE_EPOCH` variable, e.g.
-`--with-hotspot-build-time=$(date --date=@$SOURCE_DATE_EPOCH)`.
-
-  * Copyright year
-
-The copyright year in some generated text files are normally set to the current
-year. This can be overridden by `--with-copyright-year=<year>`. For fully
-reproducible builds, this needs to be set to a fixed value.
-
 ## Hints and Suggestions for Advanced Users
 
 ### Bash Completion

doc/testing.html

@@ -27,7 +27,6 @@
 <li><a href="#configuration">Configuration</a></li>
 </ul></li>
 <li><a href="#test-selection">Test selection</a><ul>
-<li><a href="#common-test-groups">Common Test Groups</a></li>
 <li><a href="#jtreg">JTReg</a></li>
 <li><a href="#gtest">Gtest</a></li>
 <li><a href="#microbenchmarks">Microbenchmarks</a></li>
@@ -68,19 +67,6 @@ $ make exploded-test TEST=tier2</code></pre>
 <p>All functionality is available using the <code>test</code> make target. In this use case, the test or tests to be executed is controlled using the <code>TEST</code> variable. To speed up subsequent test runs with no source code changes, <code>test-only</code> can be used instead, which do not depend on the source and test image build.</p>
 <p>For some common top-level tests, direct make targets have been generated. This includes all JTReg test groups, the hotspot gtest, and custom tests (if present). This means that <code>make test-tier1</code> is equivalent to <code>make test TEST=&quot;tier1&quot;</code>, but the latter is more tab-completion friendly. For more complex test runs, the <code>test TEST=&quot;x&quot;</code> solution needs to be used.</p>
 <p>The test specifications given in <code>TEST</code> is parsed into fully qualified test descriptors, which clearly and unambigously show which tests will be run. As an example, <code>:tier1</code> will expand to <code>jtreg:$(TOPDIR)/test/hotspot/jtreg:tier1 jtreg:$(TOPDIR)/test/jdk:tier1 jtreg:$(TOPDIR)/test/langtools:tier1 jtreg:$(TOPDIR)/test/nashorn:tier1 jtreg:$(TOPDIR)/test/jaxp:tier1</code>. You can always submit a list of fully qualified test descriptors in the <code>TEST</code> variable if you want to shortcut the parser.</p>
-<h3 id="common-test-groups">Common Test Groups</h3>
-<p>Ideally, all tests are run for every change but this may not be practical due to the limited testing resources, the scope of the change, etc.</p>
-<p>The source tree currently defines a few common test groups in the relevant <code>TEST.groups</code> files. There are test groups that cover a specific component, for example <code>hotspot_gc</code>. It is a good idea to look into <code>TEST.groups</code> files to get a sense what tests are relevant to a particular JDK component.</p>
-<p>Component-specific tests may miss some unintended consequences of a change, so other tests should also be run. Again, it might be impractical to run all tests, and therefore <em>tiered</em> test groups exist. Tiered test groups are not component-specific, but rather cover the significant parts of the entire JDK.</p>
-<p>Multiple tiers allow balancing test coverage and testing costs. Lower test tiers are supposed to contain the simpler, quicker and more stable tests. Higher tiers are supposed to contain progressively more thorough, slower, and sometimes less stable tests, or the tests that require special configuration.</p>
-<p>Contributors are expected to run the tests for the areas that are changed, and the first N tiers they can afford to run, but at least tier1.</p>
-<p>A brief description of the tiered test groups:</p>
-<ul>
-<li><p><code>tier1</code>: This is the lowest test tier. Multiple developers run these tests every day. Because of the widespread use, the tests in <code>tier1</code> are carefully selected and optimized to run fast, and to run in the most stable manner. The test failures in <code>tier1</code> are usually followed up on quickly, either with fixes, or adding relevant tests to problem list. GitHub Actions workflows, if enabled, run <code>tier1</code> tests.</p></li>
-<li><p><code>tier2</code>: This test group covers even more ground. These contain, among other things, tests that either run for too long to be at <code>tier1</code>, or may require special configuration, or tests that are less stable, or cover the broader range of non-core JVM and JDK features/components (for example, XML).</p></li>
-<li><p><code>tier3</code>: This test group includes more stressful tests, the tests for corner cases not covered by previous tiers, plus the tests that require GUIs. As such, this suite should either be run with low concurrency (<code>TEST_JOBS=1</code>), or without headful tests (<code>JTREG_KEYWORDS=\!headful</code>), or both.</p></li>
-<li><p><code>tier4</code>: This test group includes every other test not covered by previous tiers. It includes, for example, <code>vmTestbase</code> suites for Hotspot, which run for many hours even on large machines. It also runs GUI tests, so the same <code>TEST_JOBS</code> and <code>JTREG_KEYWORDS</code> caveats apply.</p></li>
-</ul>
 <h3 id="jtreg">JTReg</h3>
 <p>JTReg tests can be selected either by picking a JTReg test group, or a selection of files or directories containing JTReg tests.</p>
 <p>JTReg test groups can be specified either without a test root, e.g. <code>:tier1</code> (or <code>tier1</code>, the initial colon is optional), or with, e.g. <code>hotspot:tier1</code>, <code>test/jdk:jdk_util</code> or <code>$(TOPDIR)/test/hotspot/jtreg:hotspot_all</code>. The test root can be specified either as an absolute path, or a path relative to the JDK top directory, or the <code>test</code> directory. For simplicity, the hotspot JTReg test root, which really is <code>hotspot/jtreg</code> can be abbreviated as just <code>hotspot</code>.</p>
@@ -193,9 +179,7 @@ TEST FAILURE</code></pre>
 <h4 id="aot_modules-1">AOT_MODULES</h4>
 <p>Generate AOT modules before testing for the specified module, or set of modules. If multiple modules are specified, they should be separated by space (or, to help avoid quoting issues, the special value <code>%20</code>).</p>
 <h4 id="retry_count">RETRY_COUNT</h4>
-<p>Retry failed tests up to a set number of times, until they pass. This allows to pass the tests with intermittent failures. Defaults to 0.</p>
-<h4 id="repeat_count">REPEAT_COUNT</h4>
-<p>Repeat the tests up to a set number of times, stopping at first failure. This helps to reproduce intermittent test failures. Defaults to 0.</p>
+<p>Retry failed tests up to a set number of times. Defaults to 0.</p>
 <h3 id="gtest-keywords">Gtest keywords</h3>
 <h4 id="repeat">REPEAT</h4>
 <p>The number of times to repeat the tests (<code>--gtest_repeat</code>).</p>

doc/testing.md

@@ -64,52 +64,6 @@ jtreg:$(TOPDIR)/test/nashorn:tier1 jtreg:$(TOPDIR)/test/jaxp:tier1`. You can
 always submit a list of fully qualified test descriptors in the `TEST` variable
 if you want to shortcut the parser.
 
-### Common Test Groups
-
-Ideally, all tests are run for every change but this may not be practical due to the limited
-testing resources, the scope of the change, etc.
-
-The source tree currently defines a few common test groups in the relevant `TEST.groups`
-files. There are test groups that cover a specific component, for example `hotspot_gc`.
-It is a good idea to look into `TEST.groups` files to get a sense what tests are relevant
-to a particular JDK component.
-
-Component-specific tests may miss some unintended consequences of a change, so other
-tests should also be run. Again, it might be impractical to run all tests, and therefore
-_tiered_ test groups exist. Tiered test groups are not component-specific, but rather cover
-the significant parts of the entire JDK.
-
-Multiple tiers allow balancing test coverage and testing costs. Lower test tiers are supposed to
-contain the simpler, quicker and more stable tests. Higher tiers are supposed to contain
-progressively more thorough, slower, and sometimes less stable tests, or the tests that require
-special configuration.
-
-Contributors are expected to run the tests for the areas that are changed, and the first N tiers
-they can afford to run, but at least tier1.
-
-A brief description of the tiered test groups:
-
-- `tier1`: This is the lowest test tier. Multiple developers run these tests every day.
-Because of the widespread use, the tests in `tier1` are carefully selected and optimized to run
-fast, and to run in the most stable manner. The test failures in `tier1` are usually followed up
-on quickly, either with fixes, or adding relevant tests to problem list. GitHub Actions workflows,
-if enabled, run `tier1` tests.
-
-- `tier2`: This test group covers even more ground. These contain, among other things,
-tests that either run for too long to be at `tier1`, or may require special configuration,
-or tests that are less stable, or cover the broader range of non-core JVM and JDK features/components
-(for example, XML).
-
-- `tier3`: This test group includes more stressful tests, the tests for corner cases
-not covered by previous tiers, plus the tests that require GUIs. As such, this suite
-should either be run with low concurrency (`TEST_JOBS=1`), or without headful tests
-(`JTREG_KEYWORDS=\!headful`), or both.
-
-- `tier4`: This test group includes every other test not covered by previous tiers. It includes,
-for example, `vmTestbase` suites for Hotspot, which run for many hours even on large
-machines. It also runs GUI tests, so the same `TEST_JOBS` and `JTREG_KEYWORDS` caveats
-apply.
-
 ### JTReg
 
 JTReg tests can be selected either by picking a JTReg test group, or a selection
@@ -419,15 +373,7 @@ modules. If multiple modules are specified, they should be separated by space
 
 #### RETRY_COUNT
 
-Retry failed tests up to a set number of times, until they pass.
-This allows to pass the tests with intermittent failures.
-Defaults to 0.
-
-#### REPEAT_COUNT
-
-Repeat the tests up to a set number of times, stopping at first failure.
-This helps to reproduce intermittent test failures.
-Defaults to 0.
+Retry failed tests up to a set number of times. Defaults to 0.
 
 ### Gtest keywords
 

jb/project/docker/Dockerfile.aarch64

@@ -1,48 +0,0 @@
-# NOTE: This Dockerfile is meant to be used from the mkdocker_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/ubuntu:focal-20211006
-
-# Install the necessary build tools
-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; \
-    apt-get update -qy && \
-    apt-get install -qy \
-        autoconf \
-        build-essential \
-        bzip2 \
-        file \
-        g++-10=10.3.0-1ubuntu1~20.04 \
-        gcc-10=10.3.0-1ubuntu1~20.04 \
-        git \
-        libasound2-dev \
-        libcups2-dev \
-        libfontconfig1-dev \
-        libx11-dev \
-        libxext-dev \
-        libxrandr-dev \
-        libxrender-dev \
-        libxt-dev \
-        libxtst-dev \
-        make \
-        rsync \
-        tar \
-        unzip \
-        zip && \
-   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.tar.gz /jdk17/
-RUN cd /jdk17 && tar --strip-components=1 -xzf boot_jdk.tar.gz && rm /jdk17/boot_jdk.tar.gz
-ENV BOOT_JDK=/jdk17
-
-RUN git config --global user.email "teamcity@jetbrains.com" && \
-    git config --global user.name "builduser"

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"

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"

jb/project/docker/mkdocker_aarch64.sh

@@ -1,26 +0,0 @@
-#!/bin/bash -x
-
-# This script creates a Docker image suitable for building AArch64 variant
-# of the JetBrains Runtime version 17.
-
-BOOT_JDK_REMOTE_FILE=zulu17.30.15-ca-jdk17.0.1-linux_aarch64.tar.gz
-BOOT_JDK_SHA=4d9c9116eb0cdd2d7fb220d6d27059f4bf1b7e95cc93d5512bd8ce3791af86c7
-BOOT_JDK_LOCAL_FILE=boot_jdk.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.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.

jb/project/docker/mkdocker_musl_aarch64.sh

@@ -1,26 +0,0 @@
-#!/bin/bash -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.

jb/project/docker/mkdocker_musl_x64.sh

@@ -1,26 +0,0 @@
-#!/bin/bash -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.

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

@@ -1,103 +1,14 @@
-#!/bin/bash -x
-
-function do_maketest() {
-  if [ "${bundle_type: -1}" == "t" ]; then
-    echo ${bundle_type%?}
-    return 1
-  else
-    echo ${bundle_type}
-    return 0
-  fi
-}
-
-function getVersionProp() {
-  grep "^${1}" make/conf/version-numbers.conf | cut -d'=' -f2
-}
-
-while getopts ":i?" o; do
-    case "${o}" in
-        i)
-            i="incremental build"
-            INC_BUILD=1
-            ;;
-    esac
-done
-shift $((OPTIND-1))
-
-build_number=$1
-bundle_type=$2
-architecture=$3 # aarch64 or x64
-
-bundle_type=$(do_maketest)
-do_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}.${VERSION_UPDATE}"
-echo "##teamcity[setParameter name='env.JBSDK_VERSION' value='${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}']"
-
 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
 
-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 "$OS_NAME" in
-    Linux)
-        COPYRIGHT_YEAR="$(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"
-        ;;
-    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 $SOURCE_DATE_EPOCH +%Y%m%d%H%M.%S)"
-        REPRODUCIBLE_TAR_OPTS="--uid 0 --gid 0 --numeric-owner"
-        ;;
-esac
-
-WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS="--with-native-debug-symbols=zipped"
-
-REPRODUCIBLE_BUILD_OPTS="--enable-reproducible-build
-  --with-source-date=$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)
-  jbr_diz_name=$2
-
-  (cd $image_bundle_path && find . -name '*.diz' -exec rsync -R {} ../../../../dizfiles \; )
-
-  (cd dizfiles && find . -print0 | COPYFILE_DISABLE=1 \
-    tar --no-recursion --null -T - -czf ../"$jbr_diz_name".tar.gz) || do_exit $?
-}
-
 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

jb/project/tools/linux/scripts/mkimages_aarch64.sh

@@ -1,154 +1,84 @@
 #!/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
 #
-# 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
+# $ ./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
 
-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 \
-    $REPRODUCIBLE_BUILD_OPTS \
-    $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
-    || do_exit $?
-}
+[ -z "$bundle_type" ] && (git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch || exit $?)
 
-function is_musl {
-  libc=$(ldd /bin/ls | grep 'musl' | head -1 | cut -d ' ' -f1)
-  if [ -z $libc ]; then
-    # This is not Musl, return 1 == false
-    return 1
-  fi
-  return 0
-}
+sh configure \
+  --with-debug-level=release \
+  --with-vendor-name="${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 || exit $?
+make clean CONF=linux-aarch64-server-release || exit $?
+make images CONF=linux-aarch64-server-release test-image || exit $?
 
-function create_image_bundle {
-  __bundle_name=$1
-  __arch_name=$2
-  __modules_path=$3
-  __modules=$4
-
-  libc_type_suffix=''
-
-  if is_musl; then libc_type_suffix='musl-' ; fi
-
-  [ "$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}
-
-  echo Running jlink....
-  [ -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"/"$__arch_name"
-
-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> "$IMAGES_DIR"/"$__arch_name"/release
-  if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__arch_name"/release > release
-    mv release "$IMAGES_DIR"/"$__arch_name"/release
-    cp $IMAGES_DIR/jdk/lib/src.zip "$IMAGES_DIR"/"$__arch_name"/lib
-    copy_jmods "$__modules" "$__modules_path" "$IMAGES_DIR"/"$__arch_name"/jmods
-    zip_native_debug_symbols $IMAGES_DIR/jdk "${JBR}_diz"
-  fi
-
-  # jmod does not preserve file permissions (JDK-8173610)
-  [ -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 "$__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:?}"/"$__arch_name"
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=linux-aarch64-server-release
-
-case "$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}"
-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 $?
+tar -pcf $JBSDK.tar \
+  --exclude=*.debuginfo --exclude=demo --exclude=sample --exclude=man \
+  -C $BASE_DIR ${JBRSDK_BUNDLE} || exit $?
+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 -pcf $JBR.tar -C $BASE_DIR ${JBR_BUNDLE} || exit $?
+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 $?

jb/project/tools/linux/scripts/mkimages_x64.sh

@@ -1,26 +1,45 @@
 #!/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
 
-source jb/project/tools/common/scripts/common.sh
+while getopts ":i?" o; do
+    case "${o}" in
+        i)
+            i="incremental build"
+            INC_BUILD=1
+            ;;
+    esac
+done
+shift $((OPTIND-1))
 
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+bundle_type=$4
+JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
 JCEF_PATH=${JCEF_PATH:=./jcef_linux_x64}
 
+source jb/project/tools/common/scripts/common.sh
+
 function do_configure {
   sh configure \
     $WITH_DEBUG_LEVEL \
@@ -31,19 +50,7 @@ function do_configure {
     --with-version-build="$JDK_BUILD_NUMBER" \
     --with-version-opt=b"$build_number" \
     --with-boot-jdk="$BOOT_JDK" \
-    --enable-cds=yes \
-    $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
+    --enable-cds=yes || do_exit $?
 }
 
 function create_image_bundle {
@@ -52,12 +59,8 @@ function create_image_bundle {
   __modules_path=$3
   __modules=$4
 
-  libc_type_suffix=''
-
-  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${build_number}
+  JBR=${__bundle_name}-${JBSDK_VERSION}-linux-x64-${fastdebug_infix}b${build_number}
 
   echo Running jlink....
   [ -d "$IMAGES_DIR"/"$__arch_name" ] && rm -rf "${IMAGES_DIR:?}"/"$__arch_name"
@@ -69,23 +72,15 @@ function create_image_bundle {
   if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
     sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__arch_name"/release > release
     mv release "$IMAGES_DIR"/"$__arch_name"/release
-    cp $IMAGES_DIR/jdk/lib/src.zip "$IMAGES_DIR"/"$__arch_name"/lib
     copy_jmods "$__modules" "$__modules_path" "$IMAGES_DIR"/"$__arch_name"/jmods
-    zip_native_debug_symbols $IMAGES_DIR/jdk "${JBR}_diz"
   fi
 
   # jmod does not preserve file permissions (JDK-8173610)
   [ -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 "$__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
+  tar -pcf "$JBR".tar -C "$IMAGES_DIR" "$__arch_name" || do_exit $?
   [ -f "$JBR".tar.gz ] && rm "$JBR.tar.gz"
-  touch -c -d "@$SOURCE_DATE_EPOCH" "$JBR".tar
   gzip "$JBR".tar || do_exit $?
   rm -rf "${IMAGES_DIR:?}"/"$__arch_name"
 }
@@ -96,7 +91,12 @@ RELEASE_NAME=linux-x86_64-server-release
 case "$bundle_type" in
   "jcef")
     do_reset_changes=1
-    do_maketest=1
+    ;;
+  "dcevm")
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=1
+    do_reset_changes=1
     ;;
   "nomod" | "")
     bundle_type=""
@@ -122,7 +122,7 @@ 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 # $JSDK/jmods is not changed
@@ -131,24 +131,23 @@ if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
 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 "$JBRSDK_TEST.tar.gz"
     gzip "$JBRSDK_TEST".tar || do_exit $?
 fi
 
-do_exit 0
+do_exit 0

jb/project/tools/linux/scripts/mkimages_x86.sh

@@ -61,7 +61,7 @@ JBR_BASE_NAME=jbr-$JBSDK_VERSION
 rm -rf $BASE_DIR/$JBR_BUNDLE
 
 JBR=$JBR_BASE_NAME-linux-x86-b$build_number
-grep -v javafx jb/project/tools/common/modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
+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 \
@@ -77,4 +77,4 @@ 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 $?
+gzip $JBRSDK_TEST.tar || exit $?

jb/project/tools/mac/scripts/mkimages.sh

@@ -1,38 +1,64 @@
 #!/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
 
-source jb/project/tools/common/scripts/common.sh
+while getopts ":i?" o; do
+    case "${o}" in
+        i)
+            i="incremental build"
+            INC_BUILD=1
+            ;;
+    esac
+done
+shift $((OPTIND-1))
 
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+bundle_type=$4
+architecture=$5 # aarch64 or x64
+enable_aot=$6 # temporary param for building test jre with aot under aarch64
+JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
+WITH_IMPORT_MODULES="--with-import-modules=${MODULAR_SDK_PATH:=./modular-sdk}"
 JCEF_PATH=${JCEF_PATH:=./jcef_mac}
 architecture=${architecture:=x64}
 BOOT_JDK=${BOOT_JDK:=$(/usr/libexec/java_home -v 16)}
 
+source jb/project/tools/common/scripts/common.sh
+
+function copyJNF {
+  __contents_dir=$1
+    mkdir -p ${__contents_dir}/Frameworks
+    cp -Rp Frameworks/JavaNativeFoundation.framework ${__contents_dir}/Frameworks
+}
+
 function do_configure {
   if [[ "${architecture}" == *aarch64* ]]; then
     sh configure \
       $WITH_DEBUG_LEVEL \
       --with-vendor-name="${VENDOR_NAME}" \
       --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
-      --with-macosx-bundle-name-base=${VENDOR_VERSION_STRING} \
-      --with-macosx-bundle-id-base="com.jetbrains.jbr" \
       --with-jvm-features=shenandoahgc \
       --with-version-pre= \
       --with-version-build="${JDK_BUILD_NUMBER}" \
@@ -43,27 +69,19 @@ function do_configure {
       --enable-cds=no \
       --with-extra-cflags="-F$(pwd)/Frameworks" \
       --with-extra-cxxflags="-F$(pwd)/Frameworks" \
-      --with-extra-ldflags="-F$(pwd)/Frameworks" \
-      $REPRODUCIBLE_BUILD_OPTS \
-      $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
-      || do_exit $?
+      --with-extra-ldflags="-F$(pwd)/Frameworks" || do_exit $?
   else
     sh configure \
       $WITH_DEBUG_LEVEL \
       --with-vendor-name="$VENDOR_NAME" \
       --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-      --with-macosx-bundle-name-base=${VENDOR_VERSION_STRING} \
-      --with-macosx-bundle-id-base="com.jetbrains.jbr" \
       --with-jvm-features=shenandoahgc \
       --with-version-pre= \
       --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 \
-      $REPRODUCIBLE_BUILD_OPTS \
-      $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
-      || do_exit $?
+      --enable-cds=yes || do_exit $?
   fi
 }
 
@@ -91,25 +109,22 @@ 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"
   cp "$JSDK"/../Info.plist "$JRE_CONTENTS"
 
+  if [[ "${architecture}" == *aarch64* ]]; then
+    # we can't notarize this library as usual framework (with headers and tbd-file)
+    # but single library notarizes correctly
+    copyJNF $JRE_CONTENTS
+  fi
+
   [ -n "$bundle_type" ] && (cp -a $JCEF_PATH/Frameworks "$JRE_CONTENTS" || do_exit $?)
 
   echo Creating "$JBR".tar.gz ...
-  # Normalize timestamp
-  find "$tmp"/"$__arch_name" -print0 | xargs -0 touch -c -h -t "$TOUCH_TIME"
-
-  (cd "$tmp" &&
-      find "$__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
+  COPYFILE_DISABLE=1 tar -pczf "$JBR".tar.gz --exclude='*.dSYM' --exclude='man' -C "$tmp" "$__arch_name" || do_exit $?
   rm -rf "$tmp"
 }
 
@@ -123,7 +138,12 @@ RELEASE_NAME=macosx-${CONF_ARCHITECTURE}-server-release
 case "$bundle_type" in
   "jcef")
     do_reset_changes=1
-    do_maketest=1
+    ;;
+  "dcevm")
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=1
+    do_reset_changes=1
     ;;
   "nomod" | "")
     bundle_type=""
@@ -144,11 +164,14 @@ make images CONF=$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 # $JSDK/jmods is not changed
@@ -157,23 +180,22 @@ if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
 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 $?
 fi
 
-do_exit 0
+do_exit 0

jb/project/tools/mac/scripts/notarize.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -x
+#!/bin/bash
 
 APP_DIRECTORY=$1
 APPL_USER=$2
@@ -54,15 +54,17 @@ function altool-upload() {
 #immediately exit script with an error if a command fails
 set -euo pipefail
 
-#file="$APP_NAME.zip"
+file="$APP_NAME.zip"
 
-#log "Zipping $file..."
-#rm -rf "$file"
-#ditto -c -k --sequesterRsrc --keepParent "$APP_DIRECTORY" "$file"
+log "Zipping $file..."
+rm -rf "$file"
+ditto -c -k --sequesterRsrc --keepParent "$APP_DIRECTORY" "$file"
 
-log "Notarizing $APP_NAME..."
+log "Notarizing $file..."
 rm -rf "altool.init.out" "altool.check.out"
-altool-upload "$APP_NAME"
+altool-upload "$file"
+
+rm -rf "$file"
 
 notarization_info="$(grep -e "RequestUUID" "altool.init.out" | grep -oE '([0-9a-f-]{36})')"
 

jb/project/tools/mac/scripts/sign.sh

@@ -1,17 +1,14 @@
-#!/bin/bash -x
+#!/bin/bash
 
-APPLICATION_PATH=$1
-APP_NAME=$2
-BUNDLE_ID=$3
-JB_DEVELOPER_CERT=$4
-JB_INSTALLER_CERT=$5
+APP_DIRECTORY=$1
+JB_CERT=$2
 
-if [[ -z "$APPLICATION_PATH" ]] || [[ -z "$JB_DEVELOPER_CERT" ]]; then
+if [[ -z "$APP_DIRECTORY" ]] || [[ -z "$JB_CERT" ]]; then
   echo "Usage: $0 AppDirectory CertificateID"
   exit 1
 fi
-if [[ ! -d "$APPLICATION_PATH" ]]; then
-  echo "AppDirectory '$APPLICATION_PATH' does not exist or not a directory"
+if [[ ! -d "$APP_DIRECTORY" ]]; then
+  echo "AppDirectory '$APP_DIRECTORY' does not exist or not a directory"
   exit 1
 fi
 
@@ -23,30 +20,43 @@ function log() {
 set -euo pipefail
 
 # Cleanup files left from previous sign attempt (if any)
-find "$APPLICATION_PATH" -name '*.cstemp' -exec rm '{}' \;
+find "$APP_DIRECTORY" -name '*.cstemp' -exec rm '{}' \;
 
 log "Signing libraries and executables..."
 # -perm +111 searches for executables
 for f in \
-  "Contents/Home/lib" "Contents/MacOS" \
-  "Contents/Home/Frameworks" \
-  "Contents/Frameworks"; do
-  if [ -d "$APPLICATION_PATH/$f" ]; then
-    find "$APPLICATION_PATH/$f" \
-      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" -o -name "*.tbd" -o -name "*.node" -o -perm +111 \) \
-      -exec codesign --timestamp \
-      -v -s "$JB_DEVELOPER_CERT" --options=runtime --force \
+   "Contents/Home/bin" \
+   "Contents/Home/lib"; do
+  if [ -d "$APP_DIRECTORY/$f" ]; then
+    find "$APP_DIRECTORY/$f" \
+      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" -o -perm +111 \) \
+      -exec codesign --timestamp --force \
+      -v -s "$JB_CERT" --options=runtime \
       --entitlements entitlements.xml {} \;
   fi
 done
 
+if [ -d "$APP_DIRECTORY/Contents/Frameworks" ]; then
+  log "Signing frameworks..."
+  for f in $APP_DIRECTORY/Contents/Frameworks/*; do
+    find "$f" \
+      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" \) \
+      -exec codesign --timestamp --force \
+      -v -s "$JB_CERT" \
+      --entitlements entitlements.xml {} \;
+    codesign --timestamp --force \
+      -v -s "$JB_CERT" --options=runtime \
+      --entitlements entitlements.xml "$f"
+  done
+fi
+
 log "Signing libraries in jars in $PWD"
 
 # todo: add set -euo pipefail; into the inner sh -c
 # `-e` prevents `grep -q && printf` loginc
 # with `-o pipefail` there's no input for 'while' loop
-find "$APPLICATION_PATH" -name '*.jar' \
-  -exec sh -c "set -u; unzip -l \"\$0\" | grep -q -e '\.dylib\$' -e '\.jnilib\$' -e '\.so\$' -e '\.tbd\$' -e '^jattach\$' && printf \"\$0\0\" " {} \; |
+find "$APP_DIRECTORY" -name '*.jar' \
+  -exec sh -c "set -u; unzip -l \"\$0\" | grep -q -e '\.dylib\$' -e '\.jnilib\$' -e '\.so\$' -e '^jattach\$' && printf \"\$0\0\" " {} \; |
   while IFS= read -r -d $'\0' file; do
     log "Processing libraries in $file"
 
@@ -57,13 +67,12 @@ find "$APPLICATION_PATH" -name '*.jar' \
     cp "$file" jarfolder && (cd jarfolder && jar xf "$filename" && rm "$filename")
 
     find jarfolder \
-      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" -o -name "*.tbd" -o -name "jattach" \) \
-      -exec codesign --timestamp \
-      --force \
-      -v -s "$JB_DEVELOPER_CERT" --options=runtime \
+      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" -o -name "jattach" \) \
+      -exec codesign --timestamp --force \
+      -v -s "$JB_CERT" --options=runtime \
       --entitlements entitlements.xml {} \;
 
-    (cd jarfolder; zip -q -r -o -0 ../jar.jar .)
+    (cd jarfolder; zip -q -r -o ../jar.jar .)
     mv jar.jar "$file"
   done
 
@@ -71,41 +80,28 @@ rm -rf jarfolder jar.jar
 
 log "Signing other files..."
 for f in \
-  "Contents/Home/bin"; do
-  if [ -d "$APPLICATION_PATH/$f" ]; then
-    find "$APPLICATION_PATH/$f" \
-      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" -o -name "*.tbd" -o -perm +111 \) \
-      -exec codesign --timestamp \
-      -v -s "$JB_DEVELOPER_CERT" --options=runtime --force \
+  "Contents/MacOS"; do
+  if [ -d "$APP_DIRECTORY/$f" ]; then
+    find "$APP_DIRECTORY/$f" \
+      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" -o -perm +111 \) \
+      -exec codesign --timestamp --force \
+      -v -s "$JB_CERT" --options=runtime \
       --entitlements entitlements.xml {} \;
   fi
 done
 
 #log "Signing executable..."
 #codesign --timestamp \
-#    -v -s "$JB_DEVELOPER_CERT" --options=runtime \
+#    -v -s "$JB_CERT" --options=runtime \
 #    --force \
-#    --entitlements entitlements.xml "$APPLICATION_PATH/Contents/MacOS/idea"
+#    --entitlements entitlements.xml "$APP_DIRECTORY/Contents/MacOS/idea"
 
 log "Signing whole app..."
 codesign --timestamp \
-  -v -s "$JB_DEVELOPER_CERT" --options=runtime \
+  -v -s "$JB_CERT" --options=runtime \
   --force \
-  --entitlements entitlements.xml "$APPLICATION_PATH"
-
-BUILD_NAME=$(echo $APPLICATION_PATH | awk -F"/" '{ print $2 }')
-
-log "Creating $APP_NAME.pkg..."
-rm -rf "$APP_NAME.pkg"
-pkgbuild --identifier $BUNDLE_ID --sign "$JB_INSTALLER_CERT" --root $APPLICATION_PATH \
-    --install-location /Library/Java/JavaVirtualMachines/${BUILD_NAME} ${APP_NAME}.pkg
-
-#log "Signing whole app..."
-#codesign --timestamp \
-#  -v -s "$JB_DEVELOPER_CERT" --options=runtime \
-#  --force \
-#  --entitlements entitlements.xml $APP_NAME.pkg
+  --entitlements entitlements.xml "$APP_DIRECTORY"
 
 log "Verifying java is not broken"
-find "$APPLICATION_PATH" \
+find "$APP_DIRECTORY" \
   -type f -name 'java' -perm +111 -exec {} -version \;

jb/project/tools/mac/scripts/signapp.sh

@@ -12,9 +12,8 @@ BACKUP_JMODS=$2.backup
 USERNAME=$3
 PASSWORD=$4
 CODESIGN_STRING=$5
-JB_INSTALLER_CERT=$6
-NOTARIZE=$7
-BUNDLE_ID=$8
+NOTARIZE=$6
+BUNDLE_ID=$7
 
 cd "$(dirname "$0")"
 
@@ -34,7 +33,7 @@ mkdir "$BACKUP_JMODS"
 log "Unzipping $INPUT_FILE to $EXPLODED ..."
 tar -xzvf "$INPUT_FILE" --directory $EXPLODED
 BUILD_NAME="$(ls "$EXPLODED")"
-#sed -i '' s/BNDL/APPL/ $EXPLODED/$BUILD_NAME/Contents/Info.plist
+sed -i '' s/BNDL/APPL/ $EXPLODED/$BUILD_NAME/Contents/Info.plist
 rm -f $EXPLODED/$BUILD_NAME/Contents/CodeResources
 rm "$INPUT_FILE"
 if test -d $EXPLODED/$BUILD_NAME/Contents/Home/jmods; then
@@ -43,9 +42,7 @@ fi
 
 log "$INPUT_FILE extracted and removed"
 
-APP_NAME=$(echo ${INPUT_FILE} | awk -F".tar" '{ print $1 }')
-APPLICATION_PATH=$(sed "s/osx-//" <<< "$EXPLODED/$APP_NAME")
-mv $EXPLODED/$BUILD_NAME $APPLICATION_PATH
+APPLICATION_PATH="$EXPLODED/$BUILD_NAME"
 
 find "$APPLICATION_PATH/Contents/Home/bin" \
   -maxdepth 1 -type f -name '*.jnilib' -print0 |
@@ -82,7 +79,7 @@ limit=3
 set +e
 while [[ $attempt -le $limit ]]; do
   log "Signing (attempt $attempt) $APPLICATION_PATH ..."
-  ./sign.sh "$APPLICATION_PATH" "$APP_NAME" "$BUNDLE_ID" "$CODESIGN_STRING" "$JB_INSTALLER_CERT"
+  ./sign.sh "$APPLICATION_PATH" "$CODESIGN_STRING"
   ec=$?
   if [[ $ec -ne 0 ]]; then
     ((attempt += 1))
@@ -95,7 +92,6 @@ while [[ $attempt -le $limit ]]; do
     log "Signing done"
     codesign -v "$APPLICATION_PATH" -vvvvv
     log "Check sign done"
-    spctl -a -v $APPLICATION_PATH
     ((attempt += limit))
   fi
 done
@@ -106,12 +102,13 @@ if [ "$NOTARIZE" = "yes" ]; then
   log "Notarizing..."
   # shellcheck disable=SC1090
   source "$HOME/.notarize_token"
+  APP_NAME=$(echo ${INPUT_FILE} | awk -F"." '{ print $1 }')
   # Since notarization tool uses same file for upload token we have to trick it into using different folders, hence fake root
   # Also it leaves copy of zip file in TMPDIR, so notarize.sh overrides it and uses FAKE_ROOT as location for temp TMPDIR
   FAKE_ROOT="$(pwd)/fake-root"
   mkdir -p "$FAKE_ROOT"
   echo "Notarization will use fake root: $FAKE_ROOT"
-  ./notarize.sh "$APPLICATION_PATH" "$APPLE_USERNAME" "$APPLE_PASSWORD" "$APP_NAME.pkg" "$BUNDLE_ID" "$FAKE_ROOT"
+  ./notarize.sh "$APPLICATION_PATH" "$APPLE_USERNAME" "$APPLE_PASSWORD" "$APP_NAME" "$BUNDLE_ID" "$FAKE_ROOT"
   rm -rf "$FAKE_ROOT"
 
   set +e
@@ -127,11 +124,10 @@ log "Zipping $BUILD_NAME to $INPUT_FILE ..."
   #cd "$EXPLODED"
   #ditto -c -k --sequesterRsrc --keepParent "$BUILD_NAME" "../$INPUT_FILE"
   if test -d $BACKUP_JMODS/jmods; then
-    mv $BACKUP_JMODS/jmods $APPLICATION_PATH/Contents/Home
+    mv $BACKUP_JMODS/jmods $EXPLODED/$BUILD_NAME/Contents/Home
   fi
-  mv $APPLICATION_PATH $EXPLODED/$BUILD_NAME
 
-  tar -pczvf $INPUT_FILE --exclude='man' -C $EXPLODED $BUILD_NAME
+  tar -pczvf $INPUT_FILE --exclude='*.dSYM' --exclude='man' -C $EXPLODED $BUILD_NAME
   log "Finished zipping"
 )
 rm -rf "$EXPLODED"

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,

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;

jb/project/tools/patches/dcevm/0003-Fix-class-cast-exception-on-redefinition-of-class-A-.patch

@@ -0,0 +1,29 @@
+From 6e99aea309783dab138d3789b0039128bcc7344a 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 03/42] 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 9327652d8fe..c18a5822939 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -908,7 +908,10 @@ 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
+

jb/project/tools/patches/dcevm/0004-Support-for-Lambda-class-redefinition.patch

@@ -0,0 +1,206 @@
+From 146b85fb6af764594999cb9922fd820798f3e9cc 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 04/42] Support for Lambda class redefinition
+
+---
+ .../share/classfile/classLoaderData.cpp       |  9 +++
+ .../share/classfile/classLoaderData.hpp       |  2 +-
+ .../share/classfile/systemDictionary.cpp      | 10 ++-
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 65 +++++++++++++++++--
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |  1 +
+ .../share/prims/resolvedMethodTable.cpp       |  2 +
+ 6 files changed, 80 insertions(+), 9 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 340ffadf837..db50b3edee8 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
++++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -599,6 +599,15 @@ 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 5a81ab90ca3..bda39f3e353 100644
+--- a/src/hotspot/share/classfile/classLoaderData.hpp
++++ b/src/hotspot/share/classfile/classLoaderData.hpp
+@@ -175,7 +175,7 @@ class ClassLoaderData : public CHeapObj<mtClass> {
+ 
+   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 2bfd9cb802f..cea614a574f 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -825,10 +825,14 @@ InstanceKlass* SystemDictionary::resolve_hidden_class_from_stream(
+                                                      Symbol* class_name,
+                                                      Handle class_loader,
+                                                      const ClassLoadInfo& cl_info,
++                                                     InstanceKlass* old_klass,
+                                                      TRAPS) {
+ 
+   EventClassLoad class_load_start_event;
+   ClassLoaderData* loader_data;
++ 
++  bool is_redefining = (old_klass != NULL);
++  
+ 
+   // - for hidden classes that are not strong: create a new CLD that has a class holder and
+   //                                           whose loader is the Lookup class's loader.
+@@ -845,9 +849,13 @@ InstanceKlass* SystemDictionary::resolve_hidden_class_from_stream(
+                                                       class_name,
+                                                       loader_data,
+                                                       cl_info,
+-                                                      false, // pick_newest
++                                                      is_redefining, // pick_newest
+                                                       CHECK_NULL);
+   assert(k != NULL, "no klass created");
++  if (is_redefining && k != NULL) {
++    k->set_redefining(true);
++    k->set_old_version(old_klass);
++  }
+ 
+   // Hidden classes that are not strong must update ClassLoaderData holder
+   // so that they can be unloaded when the mirror is no longer referenced.
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 5308b079e67..c1b1b354541 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -492,6 +492,8 @@ 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;
+@@ -754,12 +756,34 @@ 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();
+ 
+@@ -1440,6 +1464,30 @@ 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];
+@@ -1977,7 +2025,10 @@ 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 a48e07e3a6a..3551b06ecde 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 6a8128e844f..8644937dbbb 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
++++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -409,6 +409,8 @@ 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");
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0005-Fix-no-original-bytecode-found-error-if-method-with-.patch

@@ -0,0 +1,135 @@
+From 57d2451903b84dfc772cc0bf6957a52ee5e8c0f3 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 05/42] 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 6711ba735db..4f0b655265a 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 d66ed24d862..9bfcd9eb479 100644
+--- a/src/hotspot/share/interpreter/interpreterRuntime.cpp
++++ b/src/hotspot/share/interpreter/interpreterRuntime.cpp
+@@ -788,7 +788,7 @@ JRT_END
+ // Invokes
+ 
+ JRT_ENTRY(Bytecodes::Code, InterpreterRuntime::get_original_bytecode_at(JavaThread* current, 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* current, 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 613c10a9d8c..a5a12599997 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);
+   }
+@@ -1998,7 +1998,7 @@ 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;
+ }
+ 
+@@ -2007,7 +2007,7 @@ 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 030ddd1f675..a8d6507ff6c 100644
+--- a/src/hotspot/share/oops/method.hpp
++++ b/src/hotspot/share/oops/method.hpp
+@@ -226,7 +226,7 @@ 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;
+   }
+@@ -235,7 +235,7 @@ 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 c1b1b354541..ad05b4f34cf 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -1360,14 +1360,16 @@ 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
+

jb/project/tools/patches/dcevm/0006-Replace-deleted-method-with-Universe-throw_no_such_m.patch

@@ -0,0 +1,83 @@
+From d606e7de6dfe1204128a8ac034d8f57ad6130e0a 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 06/42] Replace deleted method with
+ Universe::throw_no_such_method_error
+
++ 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
+---
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    |  2 +-
+ .../share/prims/resolvedMethodTable.cpp       | 30 +++++++++----------
+ 2 files changed, 16 insertions(+), 16 deletions(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index ad05b4f34cf..95be32f0070 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -881,7 +881,7 @@ 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 8644937dbbb..b8d039adff6 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
++++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -399,25 +399,25 @@ 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_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");
++          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);
+@@ -428,7 +428,7 @@ 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
+

jb/project/tools/patches/dcevm/0008-AllowEnhancedClassRedefinition-is-false-disabled-by-.patch

@@ -0,0 +1,26 @@
+From e818e4a83fafc07142b7b7279c633823d5d8ab23 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 08/42] 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 845a39b0225..fb6d1667156 100644
+--- a/src/hotspot/share/runtime/globals.hpp
++++ b/src/hotspot/share/runtime/globals.hpp
+@@ -2088,7 +2088,7 @@ const intx ObjectAlignmentInBytes = 8;
+   develop(bool, TraceOptimizedUpcallStubs, false,                              \
+                 "Trace optimized upcall stub generation")                      \
+                                                                             \
+-  product(bool, AllowEnhancedClassRedefinition, true,                       \
++  product(bool, AllowEnhancedClassRedefinition, false,                      \
+              "Allow enhanced class redefinition beyond swapping method "    \
+              "bodies")
+ 
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0009-Set-HOTSPOT_VM_DISTRO-Dynamic-Code-Evolution.patch

@@ -0,0 +1,74 @@
+From 737c3616d674224661dd8751861f0365d9591d80 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 09/42] Set HOTSPOT_VM_DISTRO=Dynamic Code Evolution
+
+---
+ make/autoconf/version-numbers | 55 +++++++++++++++++++++++++++++++++++
+ 1 file changed, 55 insertions(+)
+ create mode 100644 make/autoconf/version-numbers
+
+diff --git a/make/autoconf/version-numbers b/make/autoconf/version-numbers
+new file mode 100644
+index 00000000000..df8025a2e84
+--- /dev/null
++++ b/make/autoconf/version-numbers
+@@ -0,0 +1,55 @@
++#
++# Copyright (c) 2011, 2019, 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 version, product, and vendor information to use,
++# unless overridden by configure
++
++DEFAULT_VERSION_FEATURE=15
++DEFAULT_VERSION_INTERIM=0
++DEFAULT_VERSION_UPDATE=0
++DEFAULT_VERSION_PATCH=0
++DEFAULT_VERSION_EXTRA1=0
++DEFAULT_VERSION_EXTRA2=0
++DEFAULT_VERSION_EXTRA3=0
++DEFAULT_VERSION_DATE=2020-09-15
++DEFAULT_VERSION_CLASSFILE_MAJOR=59  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
++DEFAULT_VERSION_CLASSFILE_MINOR=0
++DEFAULT_ACCEPTABLE_BOOT_VERSIONS="14 15"
++DEFAULT_JDK_SOURCE_TARGET_VERSION=15
++DEFAULT_PROMOTED_VERSION_PRE=
++
++LAUNCHER_NAME=openjdk
++PRODUCT_NAME=OpenJDK
++PRODUCT_SUFFIX="Runtime Environment"
++JDK_RC_PLATFORM_NAME=Platform
++COMPANY_NAME=N/A
++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
++
++# Might need better names for these
++MACOSX_BUNDLE_NAME_BASE="OpenJDK"
++MACOSX_BUNDLE_ID_BASE="net.java.openjdk"
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0010-Clear-dcevm-code-separation.patch

@@ -0,0 +1,206 @@
+From b14f6ba2d743aacf15dedfe8ad677f176683d51c 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 10/42] Clear dcevm code separation
+
+---
+ src/hotspot/share/classfile/systemDictionary.cpp   |  3 +--
+ src/hotspot/share/gc/serial/genMarkSweep.cpp       |  8 +++++---
+ src/hotspot/share/interpreter/linkResolver.cpp     | 14 ++++++++++----
+ .../instrumentation/jfrEventClassTransformer.cpp   |  2 +-
+ src/hotspot/share/oops/cpCache.hpp                 |  8 +++++---
+ src/hotspot/share/oops/instanceKlass.cpp           |  6 +++---
+ src/hotspot/share/oops/method.cpp                  |  2 +-
+ src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp  |  2 +-
+ src/hotspot/share/runtime/reflection.cpp           |  2 +-
+ 9 files changed, 28 insertions(+), 19 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index cea614a574f..98e2541c79b 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -830,9 +830,8 @@ InstanceKlass* SystemDictionary::resolve_hidden_class_from_stream(
+ 
+   EventClassLoad class_load_start_event;
+   ClassLoaderData* loader_data;
+- 
++
+   bool is_redefining = (old_klass != NULL);
+-  
+ 
+   // - for hidden classes that are not strong: create a new CLD that has a class holder and
+   //                                           whose loader is the Lookup class's loader.
+diff --git a/src/hotspot/share/gc/serial/genMarkSweep.cpp b/src/hotspot/share/gc/serial/genMarkSweep.cpp
+index bbb2c02f2b2..00b8e44078e 100644
+--- a/src/hotspot/share/gc/serial/genMarkSweep.cpp
++++ b/src/hotspot/share/gc/serial/genMarkSweep.cpp
+@@ -316,7 +316,9 @@ 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 8fb336762df..74a6af13ea4 100644
+--- a/src/hotspot/share/interpreter/linkResolver.cpp
++++ b/src/hotspot/share/interpreter/linkResolver.cpp
+@@ -287,9 +287,14 @@ void LinkResolver::check_klass_accessibility(Klass* ref_klass, Klass* sel_klass,
+   if (!base_klass->is_instance_klass()) {
+     return;  // no relevant check to do
+   }
+-
++  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(ref_klass->newest_version(), InstanceKlass::cast(base_klass->newest_version()), true);
++    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,
+@@ -551,7 +556,8 @@ 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() == vmClasses::Object_klass()->newest_version() &&
++      ( !AllowEnhancedClassRedefinition && sel_klass == vmClasses::Object_klass() ||
++      AllowEnhancedClassRedefinition && sel_klass->newest_version() == vmClasses::Object_klass()->newest_version()) &&
+       resolved_klass->is_array_klass()) {
+     // We need to change "protected" to "public".
+     assert(flags.is_protected(), "clone not protected?");
+@@ -997,7 +1003,7 @@ 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 88e520ec475..73832251f3f 100644
+--- a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
++++ b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
+@@ -1475,7 +1475,7 @@ 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/cpCache.hpp b/src/hotspot/share/oops/cpCache.hpp
+index b934302f422..d7ae5edc7b3 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
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index c18a5822939..994f6bf266f 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -968,7 +968,7 @@ bool InstanceKlass::link_class_impl(TRAPS) {
+         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 */) {
+         JvmtiExport::post_class_prepare(THREAD, this);
+       }
+     }
+@@ -1046,7 +1046,7 @@ 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);
+@@ -3796,7 +3796,7 @@ 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 a5a12599997..4426f03fd40 100644
+--- a/src/hotspot/share/oops/method.cpp
++++ b/src/hotspot/share/oops/method.cpp
+@@ -2199,7 +2199,7 @@ 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 42e72c67879..c860ee24f80 100644
+--- a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+@@ -76,7 +76,7 @@ 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 cc58f913ed5..21104c18423 100644
+--- a/src/hotspot/share/runtime/reflection.cpp
++++ b/src/hotspot/share/runtime/reflection.cpp
+@@ -608,7 +608,7 @@ 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
+

jb/project/tools/patches/dcevm/0011-Fix-LoadedClassesClosure-fixes-problems-with-remote-.patch

@@ -0,0 +1,26 @@
+From 3957393df0bd440fe90f4a8eea007b3354a45b98 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 11/42] 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 c860ee24f80..dfe0bb8d96a 100644
+--- a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+@@ -76,7 +76,7 @@ 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
+

jb/project/tools/patches/dcevm/0013-dcevm15-add-ClassLoaderDataGraph_lock-on.patch

@@ -0,0 +1,43 @@
+From 4c98b29fed42b51e399f2ae0dc06f0c7a4397e2c 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 13/42] dcevm15 - add ClassLoaderDataGraph_lock on
+ ClassLoaderDataGraph::classes_do
+
+ClassLoaderDataGraph::classes_do and need safepoint or lock,
+find_sorted_affected_classes is not in safepoint therefore it must be
+locked
+ClassLoaderDataGraph::rollback_redefinition need safepoint too
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index a27c2ff87ae..001d2c782d8 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -1380,7 +1380,9 @@ 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));
+@@ -2063,7 +2065,10 @@ 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
+

jb/project/tools/patches/dcevm/0014-dcevm15-fix-Universe-root_oops_do.patch

@@ -0,0 +1,98 @@
+From b312e64db8532c57658d1f39269d73969ecf98d4 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 14/42] 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 | 45 +++++++++++----------------
+ 1 file changed, 19 insertions(+), 26 deletions(-)
+
+diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
+index 9fcbb6c41b3..247f2b3e8c0 100644
+--- a/src/hotspot/share/memory/universe.cpp
++++ b/src/hotspot/share/memory/universe.cpp
+@@ -44,6 +44,8 @@
+ #include "gc/shared/oopStorageSet.hpp"
+ #include "gc/shared/stringdedup/stringDedup.hpp"
+ #include "gc/shared/tlab_globals.hpp"
++#include "gc/shared/weakProcessor.hpp"
++#include "interpreter/interpreter.hpp"
+ #include "logging/log.hpp"
+ #include "logging/logStream.hpp"
+ #include "memory/metadataFactory.hpp"
+@@ -71,6 +73,8 @@
+ #include "runtime/jniHandles.hpp"
+ #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/autoRestore.hpp"
+@@ -209,45 +213,34 @@ 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);
++
++  JvmtiExport::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);
++
++  // OopStorageSet::vm_global()->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);
+ }
+ 
+ void Universe::oops_do(OopClosure* f) {
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0015-dcevm15-check-if-has_nestmate_access_to-has-newest-h.patch

@@ -0,0 +1,29 @@
+From b99bae1157fea7a62a2c9d2f10aaf722de1a5299 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 15/42] 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 ef0091fe288..b4d09e92830 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -398,6 +398,11 @@ 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
+

jb/project/tools/patches/dcevm/0016-dcevm15-mark_as_scavengable-only-alive-methods.patch

@@ -0,0 +1,54 @@
+From 936d83f295468e7c0e51b759def1d8664cca2a6e 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 16/42] dcevm15 - 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 001d2c782d8..d742679d199 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
+

jb/project/tools/patches/dcevm/0017-dcevm15-fix-hidded-classes.patch

@@ -0,0 +1,91 @@
+From 50e3023f20fbea76fcc644a037bebc3ee5afc212 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 17/42] 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 d742679d199..1433e429e30 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
+

jb/project/tools/patches/dcevm/0018-dcevm15-DON-T-clear-F2-in-CP-cache-after-indy-unevol.patch

@@ -0,0 +1,27 @@
+From 21a17a7caf43236590d2e7319e176cb19c42f9aa 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 18/42] 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 167cb274661..7e72641ec5a 100644
+--- a/src/hotspot/share/oops/cpCache.cpp
++++ b/src/hotspot/share/oops/cpCache.cpp
+@@ -654,7 +654,7 @@ 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
+

jb/project/tools/patches/dcevm/0019-Cleanup-and-review-comments.patch

@@ -0,0 +1,66 @@
+From e286bbfb6ef8235be6aa9b41e30e9ed36cfd177d 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 19/42] Cleanup and review comments
+
+---
+ src/hotspot/share/classfile/classLoaderDataGraph.hpp     | 2 +-
+ src/hotspot/share/gc/shared/gcConfig.cpp                 | 2 +-
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 1 +
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp | 2 +-
+ 4 files changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.hpp b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+index 5f8913001b0..c3bcc7271e6 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.hpp
++++ b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+@@ -105,7 +105,7 @@ 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/gc/shared/gcConfig.cpp b/src/hotspot/share/gc/shared/gcConfig.cpp
+index 26a2b67b8e9..8e78696bef5 100644
+--- a/src/hotspot/share/gc/shared/gcConfig.cpp
++++ b/src/hotspot/share/gc/shared/gcConfig.cpp
+@@ -97,7 +97,7 @@ 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.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 1433e429e30..af34d751bdb 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -842,6 +842,7 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+       k->class_loader_data()->exchange_holders(the_class->class_loader_data());
+ 
+       if (the_class->is_hidden()) {
++      // TODO: (DCEVM) review if is correct
+       // 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
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index 61f62e7f831..43f1aff8e91 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
+

jb/project/tools/patches/dcevm/0020-Disable-AllowEnhancedClassRedefinition-in-flight-rec.patch

@@ -0,0 +1,31 @@
+From a755a90e2845ef3a30f3f03185ecee1a71182606 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Fri, 12 Feb 2021 10:11:10 +0100
+Subject: [PATCH 20/42] Disable AllowEnhancedClassRedefinition in flight
+ recorder
+
+---
+ src/hotspot/share/runtime/arguments.cpp | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
+index 9661f2b62b9..252ebbc4e57 100644
+--- a/src/hotspot/share/runtime/arguments.cpp
++++ b/src/hotspot/share/runtime/arguments.cpp
+@@ -4027,6 +4027,13 @@ jint Arguments::parse(const JavaVMInitArgs* initial_cmd_args) {
+   // Set object alignment values.
+   set_object_alignment();
+ 
++  if (FlightRecorder) {
++    if (AllowEnhancedClassRedefinition) {
++      warning("EnhancedClassRedefinition was disabled, it is not allowed in FlightRecorder.");
++      AllowEnhancedClassRedefinition = false;
++    }
++  }
++
+ #if !INCLUDE_CDS
+   if (DumpSharedSpaces || RequireSharedSpaces) {
+     jio_fprintf(defaultStream::error_stream(),
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0021-dcevm17-fix-compilation-issues.patch

@@ -0,0 +1,695 @@
+From 8770c3da756a6193d69bb8c23aa992584edcb723 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Fri, 12 Feb 2021 09:44:28 +0100
+Subject: [PATCH 21/42] dcevm17 - fix compilation issues
+
+---
+ .../share/classfile/classLoaderData.cpp       |   2 +-
+ src/hotspot/share/classfile/javaClasses.cpp   |   4 +-
+ src/hotspot/share/classfile/javaClasses.hpp   |   4 +-
+ .../share/classfile/lambdaFormInvokers.cpp    | 152 ++++++++++++++++++
+ .../share/classfile/systemDictionary.cpp      |   5 +-
+ .../share/classfile/systemDictionary.hpp      |   6 +
+ src/hotspot/share/classfile/vmClassMacros.hpp |   2 +
+ .../share/gc/g1/g1FullGCCompactTask.cpp       |   9 +-
+ .../share/gc/g1/g1FullGCCompactionPoint.cpp   |  12 +-
+ src/hotspot/share/gc/shared/dcevmSharedGC.cpp |   2 +-
+ src/hotspot/share/gc/shared/space.inline.hpp  |   2 +-
+ src/hotspot/share/memory/universe.cpp         |  71 --------
+ src/hotspot/share/memory/universe.hpp         |   7 -
+ src/hotspot/share/oops/instanceKlass.cpp      |   4 +-
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    |  47 ++++--
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |   2 +
+ .../share/prims/resolvedMethodTable.cpp       |   5 +-
+ src/hotspot/share/runtime/arguments.hpp       |   2 +
+ 18 files changed, 221 insertions(+), 117 deletions(-)
+ create mode 100644 src/hotspot/share/classfile/lambdaFormInvokers.cpp
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 2a826ff50a7..65ce4c4af8c 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
++++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -603,7 +603,7 @@ void ClassLoaderData::exchange_holders(ClassLoaderData* cld) {
+   oop holder_oop = _holder.peek();
+   _holder.replace(cld->_holder.peek());
+   cld->_holder.replace(holder_oop);
+-  WeakHandle<vm_weak_data> exchange = _holder;
++  WeakHandle exchange = _holder;
+   _holder = cld->_holder;
+   cld->_holder = exchange;
+ }
+diff --git a/src/hotspot/share/classfile/javaClasses.cpp b/src/hotspot/share/classfile/javaClasses.cpp
+index dc800debea4..66ff72b2f02 100644
+--- a/src/hotspot/share/classfile/javaClasses.cpp
++++ b/src/hotspot/share/classfile/javaClasses.cpp
+@@ -3827,7 +3827,7 @@ void java_lang_invoke_DirectMethodHandle_StaticAccessor::set_static_offset(oop d
+   macro(_static_offset_offset, k, vmSymbols::static_offset_name(), long_signature, false)
+ 
+ void java_lang_invoke_DirectMethodHandle_StaticAccessor::compute_offsets() {
+-  InstanceKlass* k = SystemDictionary::DirectMethodHandle_StaticAccessor_klass();
++  InstanceKlass* k = vmClasses::DirectMethodHandle_StaticAccessor_klass();
+   DIRECTMETHODHANDLE_STATIC_ACCESSOR_FIELDS_DO(FIELD_COMPUTE_OFFSET);
+ }
+ 
+@@ -3855,7 +3855,7 @@ void java_lang_invoke_DirectMethodHandle_Accessor::set_field_offset(oop dmh, int
+   macro(_field_offset_offset, k, vmSymbols::field_offset_name(), int_signature, false)
+ 
+ void java_lang_invoke_DirectMethodHandle_Accessor::compute_offsets() {
+-  InstanceKlass* k = SystemDictionary::DirectMethodHandle_Accessor_klass();
++  InstanceKlass* k = vmClasses::DirectMethodHandle_Accessor_klass();
+   DIRECTMETHODHANDLE_ACCESSOR_FIELDS_DO(FIELD_COMPUTE_OFFSET);
+ }
+ 
+diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
+index 32348c90ef9..f7dc5ccbd8c 100644
+--- a/src/hotspot/share/classfile/javaClasses.hpp
++++ b/src/hotspot/share/classfile/javaClasses.hpp
+@@ -1029,7 +1029,7 @@ class java_lang_invoke_DirectMethodHandle_StaticAccessor: AllStatic {
+ 
+   // Testers
+   static bool is_subclass(Klass* klass) {
+-    return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_StaticAccessor_klass());
++    return klass->is_subclass_of(vmClasses::DirectMethodHandle_StaticAccessor_klass());
+   }
+   static bool is_instance(oop obj);
+ 
+@@ -1053,7 +1053,7 @@ class java_lang_invoke_DirectMethodHandle_Accessor: AllStatic {
+ 
+   // Testers
+   static bool is_subclass(Klass* klass) {
+-    return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_Accessor_klass());
++    return klass->is_subclass_of(vmClasses::DirectMethodHandle_Accessor_klass());
+   }
+   static bool is_instance(oop obj);
+ 
+diff --git a/src/hotspot/share/classfile/lambdaFormInvokers.cpp b/src/hotspot/share/classfile/lambdaFormInvokers.cpp
+new file mode 100644
+index 00000000000..281de58b482
+--- /dev/null
++++ b/src/hotspot/share/classfile/lambdaFormInvokers.cpp
+@@ -0,0 +1,152 @@
++/*
++ * 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.
++ *
++ * 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.
++ *
++ */
++
++#include "precompiled.hpp"
++#include "classfile/classLoadInfo.hpp"
++#include "classfile/classFileStream.hpp"
++#include "classfile/javaClasses.inline.hpp"
++#include "classfile/klassFactory.hpp"
++#include "classfile/lambdaFormInvokers.hpp"
++#include "classfile/symbolTable.hpp"
++#include "classfile/systemDictionary.hpp"
++#include "classfile/systemDictionaryShared.hpp"
++#include "classfile/vmClasses.hpp"
++#include "classfile/vmSymbols.hpp"
++#include "logging/log.hpp"
++#include "memory/oopFactory.hpp"
++#include "memory/metaspaceShared.hpp"
++#include "memory/resourceArea.hpp"
++#include "oops/instanceKlass.hpp"
++#include "oops/klass.hpp"
++#include "oops/objArrayKlass.hpp"
++#include "oops/objArrayOop.hpp"
++#include "oops/oop.inline.hpp"
++#include "oops/typeArrayOop.inline.hpp"
++#include "runtime/handles.inline.hpp"
++#include "runtime/javaCalls.hpp"
++
++GrowableArray<char*>* LambdaFormInvokers::_lambdaform_lines = NULL;
++
++void LambdaFormInvokers::append(char* line) {
++  if (_lambdaform_lines == NULL) {
++    _lambdaform_lines = new GrowableArray<char*>(100);
++  }
++  _lambdaform_lines->append(line);
++}
++
++void LambdaFormInvokers::regenerate_holder_classes(TRAPS) {
++  assert(_lambdaform_lines != NULL, "Bad List");
++  ResourceMark rm(THREAD);
++
++  Symbol* cds_name  = vmSymbols::jdk_internal_misc_CDS();
++  Klass*  cds_klass = SystemDictionary::resolve_or_null(cds_name, THREAD);
++  guarantee(cds_klass != NULL, "jdk/internal/misc/CDS must exist!");
++
++  int len = _lambdaform_lines->length();
++  objArrayHandle list_lines = oopFactory::new_objArray_handle(vmClasses::String_klass(), len, CHECK);
++  for (int i = 0; i < len; i++) {
++    Handle h_line = java_lang_String::create_from_str(_lambdaform_lines->at(i), CHECK);
++    list_lines->obj_at_put(i, h_line());
++  }
++
++  //
++  // Object[] CDS.generateLambdaFormHolderClasses(String[] lines)
++  // the returned Object[] layout:
++  //   name, byte[], name, byte[] ....
++  Symbol* method = vmSymbols::generateLambdaFormHolderClasses();
++  Symbol* signrs = vmSymbols::generateLambdaFormHolderClasses_signature();
++
++  JavaValue result(T_OBJECT);
++  JavaCalls::call_static(&result, cds_klass, method, signrs, list_lines, THREAD);
++
++  if (HAS_PENDING_EXCEPTION) {
++    log_info(cds)("%s: %s", THREAD->pending_exception()->klass()->external_name(),
++                            java_lang_String::as_utf8_string(java_lang_Throwable::message(THREAD->pending_exception())));
++    CLEAR_PENDING_EXCEPTION;
++    return;
++  }
++
++  objArrayHandle h_array(THREAD, (objArrayOop)result.get_oop());
++  int sz = h_array->length();
++  assert(sz % 2 == 0 && sz >= 2, "Must be even size of length");
++  for (int i = 0; i < sz; i+= 2) {
++    Handle h_name(THREAD, h_array->obj_at(i));
++    typeArrayHandle h_bytes(THREAD, (typeArrayOop)h_array->obj_at(i+1));
++    assert(h_name != NULL, "Class name is NULL");
++    assert(h_bytes != NULL, "Class bytes is NULL");
++
++    char *class_name = java_lang_String::as_utf8_string(h_name());
++    int len = h_bytes->length();
++    // make a copy of class bytes so GC will not affect us.
++    char *buf = resource_allocate_bytes(THREAD, len);
++    memcpy(buf, (char*)h_bytes->byte_at_addr(0), len);
++    ClassFileStream st((u1*)buf, len, NULL, ClassFileStream::verify);
++
++    reload_class(class_name, st, THREAD);
++    // free buf
++    resource_free_bytes(buf, len);
++
++    if (HAS_PENDING_EXCEPTION) {
++      log_info(cds)("Exception happened: %s", PENDING_EXCEPTION->klass()->name()->as_C_string());
++      log_info(cds)("Could not create InstanceKlass for class %s", class_name);
++      CLEAR_PENDING_EXCEPTION;
++      return;
++    }
++  }
++}
++
++// class_handle - the class name, bytes_handle - the class bytes
++void LambdaFormInvokers::reload_class(char* name, ClassFileStream& st, TRAPS) {
++  Symbol* class_name = SymbolTable::new_symbol((const char*)name);
++  // the class must exist
++  Klass* klass = SystemDictionary::resolve_or_null(class_name, THREAD);
++  if (klass == NULL) {
++    log_info(cds)("Class %s not present, skip", name);
++    return;
++  }
++  assert(klass->is_instance_klass(), "Should be");
++
++  ClassLoaderData* cld = ClassLoaderData::the_null_class_loader_data();
++  Handle protection_domain;
++  ClassLoadInfo cl_info(protection_domain);
++
++  InstanceKlass* result = KlassFactory::create_from_stream(&st,
++                                                   class_name,
++                                                   cld,
++                                                   cl_info,
++                                                   false,
++                                                   CHECK);
++
++  {
++    MutexLocker mu_r(THREAD, Compile_lock); // add_to_hierarchy asserts this.
++    SystemDictionary::add_to_hierarchy(result);
++  }
++  // new class not linked yet.
++  MetaspaceShared::try_link_class(THREAD, result);
++  assert(!HAS_PENDING_EXCEPTION, "Invariant");
++
++  // exclude the existing class from dump
++  SystemDictionaryShared::set_excluded(InstanceKlass::cast(klass));
++  log_info(cds, lambda)("Replaced class %s, old: %p  new: %p", name, klass, result);
++}
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index 98e2541c79b..63de2e2f099 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -963,11 +963,12 @@ InstanceKlass* SystemDictionary::resolve_from_stream(ClassFileStream* st,
+                                                      Symbol* class_name,
+                                                      Handle class_loader,
+                                                      const ClassLoadInfo& cl_info,
++                                                     InstanceKlass* old_klass,
+                                                      TRAPS) {
+   if (cl_info.is_hidden()) {
+-    return resolve_hidden_class_from_stream(st, class_name, class_loader, cl_info, CHECK_NULL);
++    return resolve_hidden_class_from_stream(st, class_name, class_loader, cl_info, old_klass, CHECK_NULL);
+   } else {
+-    return resolve_class_from_stream(st, class_name, class_loader, cl_info, CHECK_NULL);
++    return resolve_class_from_stream(st, class_name, class_loader, cl_info, old_klass, CHECK_NULL);
+   }
+ }
+ 
+diff --git a/src/hotspot/share/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
+index 0c774dfeb51..65185a29b10 100644
+--- a/src/hotspot/share/classfile/systemDictionary.hpp
++++ b/src/hotspot/share/classfile/systemDictionary.hpp
+@@ -124,6 +124,7 @@ class SystemDictionary : AllStatic {
+                                                          Symbol* class_name,
+                                                          Handle class_loader,
+                                                          const ClassLoadInfo& cl_info,
++                                                         InstanceKlass* old_klass,
+                                                          TRAPS);
+ 
+   // Resolve a class from stream (called by jni_DefineClass and JVM_DefineClass)
+@@ -132,6 +133,7 @@ class SystemDictionary : AllStatic {
+                                                   Symbol* class_name,
+                                                   Handle class_loader,
+                                                   const ClassLoadInfo& cl_info,
++                                                  InstanceKlass* old_klass,
+                                                   TRAPS);
+ 
+  public:
+@@ -203,6 +205,10 @@ class SystemDictionary : AllStatic {
+   // Initialization
+   static void initialize(TRAPS);
+ 
++  // (DCEVM) Enhanced class redefinition
++  static void remove_from_hierarchy(InstanceKlass* k);
++  static void update_constraints_after_redefinition();
++
+ protected:
+   // Returns the class loader data to be used when looking up/updating the
+   // system dictionary.
+diff --git a/src/hotspot/share/classfile/vmClassMacros.hpp b/src/hotspot/share/classfile/vmClassMacros.hpp
+index a4f55641b51..fb205721a39 100644
+--- a/src/hotspot/share/classfile/vmClassMacros.hpp
++++ b/src/hotspot/share/classfile/vmClassMacros.hpp
+@@ -109,6 +109,8 @@
+                                                                                                                 \
+   /* support for dynamic typing; it's OK if these are NULL in earlier JDKs */                                   \
+   do_klass(DirectMethodHandle_klass,                    java_lang_invoke_DirectMethodHandle                   ) \
++  do_klass(DirectMethodHandle_StaticAccessor_klass,     java_lang_invoke_DirectMethodHandle_StaticAccessor    ) \
++  do_klass(DirectMethodHandle_Accessor_klass,           java_lang_invoke_DirectMethodHandle_Accessor          ) \
+   do_klass(MethodHandle_klass,                          java_lang_invoke_MethodHandle                         ) \
+   do_klass(VarHandle_klass,                             java_lang_invoke_VarHandle                            ) \
+   do_klass(MemberName_klass,                            java_lang_invoke_MemberName                           ) \
+diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
+index 54edc9dffb5..058dea90828 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
++++ b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
+@@ -141,7 +141,10 @@ void G1FullGCCompactTask::compact_region_dcevm(HeapRegion* hr, GrowableArray<Hea
+   // Once all objects have been moved the liveness information
+   // needs be cleared.
+   collector()->mark_bitmap()->clear_region(hr);
+-  hr->complete_compaction();
++  if (G1VerifyBitmaps) {
++    collector()->mark_bitmap()->clear_region(hr);
++  }
++  hr->reset_compacted_after_full_gc();
+ }
+ 
+ void G1FullGCCompactTask::serial_compaction_dcevm() {
+@@ -184,13 +187,13 @@ size_t G1FullGCCompactTask::G1CompactRegionClosureDcevm::apply(oop obj) {
+     } else {
+       DcevmSharedGC::update_fields(obj, oop(destination));
+     }
+-    oop(destination)->init_mark_raw();
++    oop(destination)->init_mark();
+     assert(oop(destination)->klass() != NULL, "should have a class");
+     return size;
+   }
+ 
+   Copy::aligned_conjoint_words(obj_addr, destination, size);
+-  oop(destination)->init_mark_raw();
++  oop(destination)->init_mark();
+   assert(oop(destination)->klass() != NULL, "should have a class");
+ 
+   return size;
+diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
+index 71a46b88f9e..87b1977128a 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
++++ b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
+@@ -36,8 +36,8 @@ G1FullGCCompactionPoint::G1FullGCCompactionPoint() :
+ {
+   _compaction_regions = new (ResourceObj::C_HEAP, mtGC) GrowableArray<HeapRegion*>(32, mtGC);
+   _compaction_region_iterator = _compaction_regions->begin();
+-  _rescued_oops = new (ResourceObj::C_HEAP, mtGC) GrowableArray<HeapWord*>(128, true, mtGC);
+-  _rescued_oops_values = new (ResourceObj::C_HEAP, mtGC) GrowableArray<HeapWord*>(128, true, mtGC);
++  _rescued_oops = new (ResourceObj::C_HEAP, mtGC) GrowableArray<HeapWord*>(128, mtGC);
++  _rescued_oops_values = new (ResourceObj::C_HEAP, mtGC) GrowableArray<HeapWord*>(128, mtGC);
+ }
+ 
+ G1FullGCCompactionPoint::~G1FullGCCompactionPoint() {
+@@ -180,15 +180,15 @@ void G1FullGCCompactionPoint::forward_dcevm(oop object, size_t size, bool force_
+       // with BiasedLocking, in this case forwardee() will return NULL
+       // even if the mark-word is used. This is no problem since
+       // forwardee() will return NULL in the compaction phase as well.
+-      object->init_mark_raw();
++      object->init_mark();
+     } 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() == markWord::prototype_for_klass(object->klass()) || // Correct mark
++      assert(object->mark() == 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
++             (UseBiasedLocking && object->has_bias_pattern()), // Will be restored by BiasedLocking
+              "should have correct prototype obj: " PTR_FORMAT " mark: " PTR_FORMAT " prototype: " PTR_FORMAT,
+-             p2i(object), object->mark_raw().value(), markWord::prototype_for_klass(object->klass()).value());
++             p2i(object), object->mark().value(), markWord::prototype_for_klass(object->klass()).value());
+     }
+     assert(object->forwardee() == NULL, "should be forwarded to NULL");
+   }
+diff --git a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
+index 3dee097f1d3..edc19a3077d 100644
+--- a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
++++ b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
+@@ -64,7 +64,7 @@ void DcevmSharedGC::copy_rescued_objects_back(GrowableArray<HeapWord*>* rescued_
+         Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(rescued_obj), cast_from_oop<HeapWord*>(new_obj), size);
+       }
+ 
+-      new_obj->init_mark_raw();
++      new_obj->init_mark();
+       assert(oopDesc::is_oop(new_obj), "must be a valid oop");
+     }
+   }
+diff --git a/src/hotspot/share/gc/shared/space.inline.hpp b/src/hotspot/share/gc/shared/space.inline.hpp
+index e3a37280268..cafa2503ef4 100644
+--- a/src/hotspot/share/gc/shared/space.inline.hpp
++++ b/src/hotspot/share/gc/shared/space.inline.hpp
+@@ -371,7 +371,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
+         } else {
+           DcevmSharedGC::update_fields(oop(cur_obj), oop(compaction_top));
+         }
+-        oop(compaction_top)->init_mark_raw();
++        oop(compaction_top)->init_mark();
+         assert(oop(compaction_top)->klass() != NULL, "should have a class");
+ 
+         debug_only(prev_obj = cur_obj);
+diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
+index 247f2b3e8c0..4ae3b382b67 100644
+--- a/src/hotspot/share/memory/universe.cpp
++++ b/src/hotspot/share/memory/universe.cpp
+@@ -44,8 +44,6 @@
+ #include "gc/shared/oopStorageSet.hpp"
+ #include "gc/shared/stringdedup/stringDedup.hpp"
+ #include "gc/shared/tlab_globals.hpp"
+-#include "gc/shared/weakProcessor.hpp"
+-#include "interpreter/interpreter.hpp"
+ #include "logging/log.hpp"
+ #include "logging/logStream.hpp"
+ #include "memory/metadataFactory.hpp"
+@@ -73,8 +71,6 @@
+ #include "runtime/jniHandles.hpp"
+ #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/autoRestore.hpp"
+@@ -208,73 +204,6 @@ void Universe::basic_type_classes_do(KlassClosure *closure) {
+   }
+ }
+ 
+-#define DO_PRIMITIVE_MIRROR(m) \
+-  f->do_oop((oop*) &m);
+-
+-// FIXME: (DCEVM) This method should iterate all pointers that are not within heap objects.
+-void Universe::root_oops_do(OopClosure *oopClosure) {
+-  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);
+-  // (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
+-  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);
+-
+-  // OopStorageSet::vm_global()->oops_do(oopClosure);
+-
+-}
+-
+-void Universe::oops_do(OopClosure* f) {
+-  PRIMITIVE_MIRRORS_DO(DO_PRIMITIVE_MIRROR);
+-
+-  for (int i = T_BOOLEAN; i < T_VOID+1; i++) {
+-    f->do_oop((oop*) &_mirrors[i]);
+-  }
+-  assert(_mirrors[0] == NULL && _mirrors[T_BOOLEAN - 1] == NULL, "checking");
+-
+-  f->do_oop((oop*)&_the_empty_class_array);
+-  f->do_oop((oop*)&_the_null_sentinel);
+-  f->do_oop((oop*)&_the_null_string);
+-  f->do_oop((oop*)&_the_min_jint_string);
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_java_heap));
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_c_heap));
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_metaspace));
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_class_metaspace));
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_array_size));
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_gc_overhead_limit));
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_realloc_objects));
+-  f->do_oop((oop*)&out_of_memory_errors()->obj_at(_oom_retry));
+-  f->do_oop((oop*)&_delayed_stack_overflow_error_message);
+-  f->do_oop((oop*)&_preallocated_out_of_memory_error_array);
+-  f->do_oop((oop*)&_null_ptr_exception_instance);
+-  f->do_oop((oop*)&_arithmetic_exception_instance);
+-  f->do_oop((oop*)&_virtual_machine_error_instance);
+-  f->do_oop((oop*)&_main_thread_group);
+-  f->do_oop((oop*)&_system_thread_group);
+-  f->do_oop((oop*)&_reference_pending_list);
+-  debug_only(f->do_oop((oop*)&_fullgc_alot_dummy_array);)
+-  ThreadsSMRSupport::exiting_threads_oops_do(f);
+-}
+-
+ void LatestMethodCache::metaspace_pointers_do(MetaspaceClosure* it) {
+   it->push(&_klass);
+ }
+diff --git a/src/hotspot/share/memory/universe.hpp b/src/hotspot/share/memory/universe.hpp
+index cb320076a55..4b2211c415e 100644
+--- a/src/hotspot/share/memory/universe.hpp
++++ b/src/hotspot/share/memory/universe.hpp
+@@ -326,13 +326,6 @@ class Universe: AllStatic {
+   static bool        should_fill_in_stack_trace(Handle throwable);
+   static void check_alignment(uintx size, uintx alignment, const char* name);
+ 
+-  // Iteration
+-
+-  static void root_oops_do(OopClosure *oopClosure); // FIXME: kill...
+-  // Apply "f" to the addresses of all the direct heap pointers maintained
+-  // as static fields of "Universe".
+-  static void oops_do(OopClosure* f);
+-
+   // CDS support
+   static void serialize(SerializeClosure* f);
+ 
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index b4d09e92830..c2de2bec7d4 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -1286,7 +1286,7 @@ void InstanceKlass::init_implementor() {
+ // (DCEVM) - init_implementor() for dcevm
+ void InstanceKlass::init_implementor_from_redefine() {
+   assert(is_interface(), "not interface");
+-  Klass* volatile* addr = adr_implementor();
++  InstanceKlass* volatile* addr = adr_implementor();
+   assert(addr != NULL, "null addr");
+   if (addr != NULL) {
+     *addr = NULL;
+@@ -3816,7 +3816,7 @@ void InstanceKlass::verify_on(outputStream* st) {
+ 
+     guarantee(sib->is_klass(), "should be klass");
+     // TODO: (DCEVM) explain
+-    guarantee(sib->super() == super || AllowEnhancedClassRedefinition && super->newest_version() == SystemDictionary::Object_klass(), "siblings should have same superklass");
++    guarantee(sib->super() == super || AllowEnhancedClassRedefinition && super->newest_version() == vmClasses::Object_klass(), "siblings should have same superklass");
+   }
+ 
+   // Verify local interfaces
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index af34d751bdb..0b1db1581d1 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -26,8 +26,10 @@
+ #include "aot/aotLoader.hpp"
+ #include "classfile/classFileParser.hpp"
+ #include "classfile/classFileStream.hpp"
++#include "classfile/classLoadInfo.hpp"
+ #include "classfile/metadataOnStackMark.hpp"
+ #include "classfile/systemDictionary.hpp"
++#include "classfile/symbolTable.hpp"
+ #include "classfile/verifier.hpp"
+ #include "classfile/dictionary.hpp"
+ #include "classfile/classLoaderDataGraph.hpp"
+@@ -198,8 +200,8 @@ class FieldCopier : public FieldClosure {
+     if (found && result.is_static()) {
+       log_trace(redefine, class, obsolete, metadata)("Copying static field value for field %s old_offset=%d new_offset=%d",
+                                                fd->name()->as_C_string(), result.offset(), fd->offset());
+-      memcpy(cur_oop->obj_field_addr_raw<HeapWord>(fd->offset()),
+-             old_oop->obj_field_addr_raw<HeapWord>(result.offset()),
++      memcpy(cur_oop->obj_field_addr<HeapWord>(fd->offset()),
++             old_oop->obj_field_addr<HeapWord>(result.offset()),
+              type2aelembytes(fd->field_type()));
+ 
+       // Static fields may have references to java.lang.Class
+@@ -242,6 +244,17 @@ void VM_EnhancedRedefineClasses::register_nmethod_g1(nmethod* nm) {
+   }
+ }
+ 
++void VM_EnhancedRedefineClasses::root_oops_do(OopClosure *oopClosure) {
++  Universe::vm_global()->oops_do(oopClosure);
++
++  Threads::oops_do(oopClosure, NULL);
++  AOT_ONLY(AOTLoader::oops_do(oopClosure);)
++  OopStorageSet::strong_oops_do(oopClosure);
++
++  CodeBlobToOopClosure blobClosure(oopClosure, CodeBlobToOopClosure::FixRelocations);
++  CodeCache::blobs_do(&blobClosure);
++}
++
+ // TODO comment
+ struct StoreBarrier {
+   // TODO: j10 review change ::oop_store -> HeapAccess<>::oop_store
+@@ -558,7 +571,7 @@ void VM_EnhancedRedefineClasses::doit() {
+       _timer_heap_iterate.stop();
+     }
+ 
+-    Universe::root_oops_do(&oopClosureNoBarrier);
++    root_oops_do(&oopClosureNoBarrier);
+ 
+     if (UseG1GC) {
+       // this should work also for other GCs
+@@ -737,8 +750,8 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
+ //  - link new classes
+ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+ 
+-  _affected_klasses = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<Klass*>(_class_count, true);
+-  _new_classes = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<InstanceKlass*>(_class_count, true);
++  _affected_klasses = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<Klass*>(_class_count);
++  _new_classes = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<InstanceKlass*>(_class_count);
+ 
+   ResourceMark rm(THREAD);
+ 
+@@ -832,12 +845,12 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+                             !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,
+-                                         the_class_loader,
+-                                         &st,
+-                                         cl_info,
+-                                         the_class,
+-                                         THREAD);
++      k = SystemDictionary::resolve_from_stream(&st,
++                                                the_class_sym,
++                                                the_class_loader,
++                                                cl_info,
++                                                the_class,
++                                                THREAD);
+ 
+       k->class_loader_data()->exchange_holders(the_class->class_loader_data());
+ 
+@@ -853,12 +866,12 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+       }
+ 
+     } else {
+-      k = SystemDictionary::resolve_from_stream(the_class_sym,
+-                                                  the_class_loader,
+-                                                  protection_domain,
+-                                                  &st,
+-                                                  the_class,
+-                                                  THREAD);
++      k = SystemDictionary::resolve_from_stream(&st,
++                                                the_class_sym,
++                                                the_class_loader,
++                                                protection_domain,
++                                                the_class,
++                                                THREAD);
+     }
+     // Clear class_being_redefined just to be sure.
+     state->clear_class_being_redefined();
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index 43f1aff8e91..ae0a15281f3 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -124,6 +124,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   static void register_nmethod_g1(nmethod* nm);
+   static void unpatch_bytecode(Method* method, TRAPS);
+ 
++  void root_oops_do(OopClosure *oopClosure);
++
+   // 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();
+diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
+index 3c29eda4da0..a1eadc2958a 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
++++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -34,6 +34,7 @@
+ #include "oops/access.inline.hpp"
+ #include "oops/method.hpp"
+ #include "oops/oop.inline.hpp"
++#include "oops/klass.inline.hpp"
+ #include "oops/weakHandle.inline.hpp"
+ #include "prims/resolvedMethodTable.hpp"
+ #include "runtime/atomic.hpp"
+@@ -375,7 +376,7 @@ class AdjustMethodEntriesDcevm : public StackObj {
+   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) {
++  bool operator()(WeakHandle* entry) {
+     oop mem_name = entry->peek();
+     if (mem_name == NULL) {
+       // Removed
+@@ -460,7 +461,7 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
+       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));
++      WeakHandle wh(_oop_storage, 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);
+diff --git a/src/hotspot/share/runtime/arguments.hpp b/src/hotspot/share/runtime/arguments.hpp
+index 3adc03a6583..b8eb4d0ab24 100644
+--- a/src/hotspot/share/runtime/arguments.hpp
++++ b/src/hotspot/share/runtime/arguments.hpp
+@@ -487,6 +487,8 @@ class Arguments : AllStatic {
+   // Adjusts the arguments after the OS have adjusted the arguments
+   static jint adjust_after_os();
+ 
++  // Check for consistency in the selection of the garbage collector.
++  static bool check_gc_consistency();        // Check user-selected gc
+   // Check consistency or otherwise of VM argument settings
+   static bool check_vm_args_consistency();
+   // Used by os_solaris
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0022-Fix-crash-on-GrowableArray-allocation-in-C_HEAP.patch

@@ -0,0 +1,27 @@
+From d170fa0a21d5c62348fe77eeaa81b16c8c51531a Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Fri, 12 Feb 2021 11:38:48 +0100
+Subject: [PATCH 22/42] Fix crash on GrowableArray allocation in C_HEAP
+
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 0b1db1581d1..b88c071be13 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -750,8 +750,8 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
+ //  - link new classes
+ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+ 
+-  _affected_klasses = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<Klass*>(_class_count);
+-  _new_classes = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<InstanceKlass*>(_class_count);
++  _affected_klasses = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<Klass*>(_class_count, mtInternal);
++  _new_classes = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<InstanceKlass*>(_class_count, mtInternal);
+ 
+   ResourceMark rm(THREAD);
+ 
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0023-Rename-confusing-method-name-old_if_redefined-to-old.patch

@@ -0,0 +1,49 @@
+From 8f59a799ec9996f3d92843f1a9f8504390c20009 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Fri, 12 Feb 2021 11:39:05 +0100
+Subject: [PATCH 23/42] Rename confusing method name old_if_redefined to
+ old_if_redefining
+
+---
+ src/hotspot/share/classfile/dictionary.cpp | 4 ++--
+ src/hotspot/share/classfile/dictionary.hpp | 2 +-
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/dictionary.cpp b/src/hotspot/share/classfile/dictionary.cpp
+index 223b9e1e7a9..2b236a7724e 100644
+--- a/src/hotspot/share/classfile/dictionary.cpp
++++ b/src/hotspot/share/classfile/dictionary.cpp
+@@ -359,7 +359,7 @@ InstanceKlass* Dictionary::find(unsigned int hash, Symbol* name,
+   int index = hash_to_index(hash);
+   DictionaryEntry* entry = get_entry(index, hash, name);
+   if (entry != NULL && entry->is_valid_protection_domain(protection_domain)) {
+-    return old_if_redefined(entry->instance_klass());
++    return old_if_redefining(entry->instance_klass());
+   } else {
+     return NULL;
+   }
+@@ -373,7 +373,7 @@ InstanceKlass* Dictionary::find_class(unsigned int hash,
+   assert (index == index_for(name), "incorrect index?");
+ 
+   DictionaryEntry* entry = get_entry(index, hash, name);
+-  return old_if_redefined((entry != NULL) ? entry->instance_klass() : NULL);
++  return old_if_redefining((entry != NULL) ? entry->instance_klass() : NULL);
+ }
+ 
+ void Dictionary::add_protection_domain(int index, unsigned int hash,
+diff --git a/src/hotspot/share/classfile/dictionary.hpp b/src/hotspot/share/classfile/dictionary.hpp
+index bdfef5c8663..e997cfdcabd 100644
+--- a/src/hotspot/share/classfile/dictionary.hpp
++++ b/src/hotspot/share/classfile/dictionary.hpp
+@@ -109,7 +109,7 @@ public:
+                              Handle protection_domain);
+ 
+   // (DCEVM) return old class if redefining in AllowEnhancedClassRedefinition, otherwise return "k"
+-  static InstanceKlass* old_if_redefined(InstanceKlass* k) {
++  static InstanceKlass* old_if_redefining(InstanceKlass* k) {
+     return (k != NULL && k->is_redefining()) ? ((InstanceKlass* )k->old_version()) : k;
+   }
+ };
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0024-Check-InstanceKlass-has_nestmate_access_to-with-acti.patch

@@ -0,0 +1,43 @@
+From cc05b370b2fdf4c367bb9b6e4a21b9f97ae53dcf Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Fri, 12 Feb 2021 12:33:47 +0100
+Subject: [PATCH 24/42] Check InstanceKlass::has_nestmate_access_to with active
+ classes
+
+Dcevm can leave old host in nested class if nested class is not
+redefined together with host class
+---
+ src/hotspot/share/oops/instanceKlass.cpp | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index c2de2bec7d4..3cc96f98f41 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -398,9 +398,9 @@ bool InstanceKlass::has_nestmate_access_to(InstanceKlass* k, TRAPS) {
+     return false;
+   }
+ 
++  // (DCEVM) cur_host can be old, decide accessibility based on active version
+   if (AllowEnhancedClassRedefinition) {
+-    // TODO: (DCEVM) check if it correct. It fix problems with lambdas (hidden)
+-    cur_host = InstanceKlass::cast(cur_host->newest_version());
++    cur_host = InstanceKlass::cast(cur_host->active_version());
+   }
+ 
+   Klass* k_nest_host = k->nest_host(CHECK_false);
+@@ -408,6 +408,11 @@ bool InstanceKlass::has_nestmate_access_to(InstanceKlass* k, TRAPS) {
+     return false;
+   }
+ 
++  // (DCEVM) k_nest_host can be old, decide accessibility based on active version
++  if (AllowEnhancedClassRedefinition) {
++    k_nest_host = InstanceKlass::cast(k_nest_host->active_version());
++  }
++
+   bool access = (cur_host == k_nest_host);
+ 
+   ResourceMark rm(THREAD);
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0025-JBR-3111-Update-class-in-all-dictionaries-where-it-w.patch

@@ -0,0 +1,95 @@
+From fdc87a0203f5aa1a21b3bf2e7a5aa114739f66cf Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 13 Feb 2021 20:47:52 +0100
+Subject: [PATCH 25/42] JBR-3111 Update class in all dictionaries where it was
+ already defined
+
+This patch keeps compatibility with std redefinition, that does not
+create a new Klass, but modifies it, then it is modified in all
+dictionaries containing this class.
+---
+ src/hotspot/share/classfile/classLoaderDataGraph.cpp | 9 +++++++++
+ src/hotspot/share/classfile/classLoaderDataGraph.hpp | 3 +++
+ src/hotspot/share/classfile/dictionary.cpp           | 2 +-
+ src/hotspot/share/classfile/dictionary.hpp           | 2 +-
+ src/hotspot/share/classfile/systemDictionary.cpp     | 4 +++-
+ 5 files changed, 17 insertions(+), 3 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.cpp b/src/hotspot/share/classfile/classLoaderDataGraph.cpp
+index fda5d2eb1ba..67ade5709f6 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.cpp
++++ b/src/hotspot/share/classfile/classLoaderDataGraph.cpp
+@@ -455,6 +455,15 @@ void ClassLoaderDataGraph::rollback_redefinition() {
+   }
+ }
+ 
++// (DCEVM) - iterate over all classes in all dictionaries
++bool ClassLoaderDataGraph::dictionary_classes_do_update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass) {
++  bool ok = false;
++  FOR_ALL_DICTIONARY(cld) {
++    ok = cld->dictionary()->update_klass(name, k, old_klass) || ok;
++  }
++  return ok;
++}
++
+ void ClassLoaderDataGraph::verify_dictionary() {
+   FOR_ALL_DICTIONARY(cld) {
+     cld->dictionary()->verify();
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.hpp b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+index c3bcc7271e6..ebdb0bc2c8c 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.hpp
++++ b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+@@ -108,6 +108,9 @@ class ClassLoaderDataGraph : public AllStatic {
+   // (DCEVM) Enhanced class redefinition
+   static void rollback_redefinition();
+ 
++  // Enhanced class redefinition
++  static bool dictionary_classes_do_update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass);
++
+   // VM_CounterDecay iteration support
+   static InstanceKlass* try_get_next_class();
+   static void adjust_saved_class(ClassLoaderData* cld);
+diff --git a/src/hotspot/share/classfile/dictionary.cpp b/src/hotspot/share/classfile/dictionary.cpp
+index 2b236a7724e..bb1d09fa7a2 100644
+--- a/src/hotspot/share/classfile/dictionary.cpp
++++ b/src/hotspot/share/classfile/dictionary.cpp
+@@ -322,7 +322,7 @@ DictionaryEntry* Dictionary::get_entry(int index, unsigned int hash,
+ }
+ 
+ // (DCEVM) replace old_class by new class in dictionary
+-bool Dictionary::update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass) {
++bool Dictionary::update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass) {
+   // There are several entries for the same class in the dictionary: One extra entry for each parent classloader of the classloader of the class.
+   bool found = false;
+   for (int index = 0; index < table_size(); index++) {
+diff --git a/src/hotspot/share/classfile/dictionary.hpp b/src/hotspot/share/classfile/dictionary.hpp
+index e997cfdcabd..7f8d8e35fc3 100644
+--- a/src/hotspot/share/classfile/dictionary.hpp
++++ b/src/hotspot/share/classfile/dictionary.hpp
+@@ -83,7 +83,7 @@ public:
+   void verify();
+ 
+   // (DCEVM) Enhanced class redefinition
+-  bool update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass);
++  bool update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass);
+ 
+   void rollback_redefinition();
+ 
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index 63de2e2f099..35e2f376870 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -1441,7 +1441,9 @@ void SystemDictionary::define_instance_class(InstanceKlass* k, InstanceKlass* ol
+ 
+   unsigned int name_hash = dictionary->compute_hash(name_h);
+   if (is_redefining) {
+-    bool ok = dictionary->update_klass(name_hash, name_h, loader_data, k, old_klass);
++    // Update all dictionaries containing old_class to new_class
++    // outcome must be same as result of standard redefinition, that does not create a new Klass
++    bool ok = ClassLoaderDataGraph::dictionary_classes_do_update_klass(name_h, k, old_klass);
+     assert (ok, "must have found old class and updated!");
+   }
+   check_constraints(name_hash, k, class_loader, !is_redefining, CHECK);
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0026-Add-ClassLoaderDataGraph_lock-to-define-new-class-in.patch

@@ -0,0 +1,29 @@
+From a33424d92f6001c9f9cb627b620f490fdfbc1196 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 20 Feb 2021 15:47:47 +0100
+Subject: [PATCH 26/42] Add ClassLoaderDataGraph_lock to define new class in
+ enhanced redefiniton
+
+ClassLoaderDataGraph locking for introduced in redefinition in
+java.version>11
+---
+ src/hotspot/share/classfile/systemDictionary.cpp | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index 35e2f376870..c628cb9da83 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -1443,7 +1443,9 @@ void SystemDictionary::define_instance_class(InstanceKlass* k, InstanceKlass* ol
+   if (is_redefining) {
+     // Update all dictionaries containing old_class to new_class
+     // outcome must be same as result of standard redefinition, that does not create a new Klass
++    ClassLoaderDataGraph_lock->lock();
+     bool ok = ClassLoaderDataGraph::dictionary_classes_do_update_klass(name_h, k, old_klass);
++    ClassLoaderDataGraph_lock->unlock();
+     assert (ok, "must have found old class and updated!");
+   }
+   check_constraints(name_hash, k, class_loader, !is_redefining, CHECK);
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0027-JBR-3140-support-for-modularized-HotswapAgent.patch

@@ -0,0 +1,180 @@
+From e85a74a6bd33e5d81569ec209311e698de402990 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Thu, 18 Jun 2020 18:40:11 +0200
+Subject: [PATCH 27/42] JBR-3140 - support for modularized HotswapAgent
+
+Add -XX:HotswapAgent=[disabled,fatjar.core]
+---
+ src/hotspot/share/runtime/arguments.cpp       | 77 +++++++++++++++++++
+ src/hotspot/share/runtime/arguments.hpp       |  4 +
+ .../flags/jvmFlagConstraintsRuntime.cpp       |  9 +++
+ .../flags/jvmFlagConstraintsRuntime.hpp       |  3 +-
+ src/hotspot/share/runtime/globals.hpp         | 11 ++-
+ 5 files changed, 102 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
+index 252ebbc4e57..9c6fab8ae4b 100644
+--- a/src/hotspot/share/runtime/arguments.cpp
++++ b/src/hotspot/share/runtime/arguments.cpp
+@@ -4034,6 +4034,8 @@ jint Arguments::parse(const JavaVMInitArgs* initial_cmd_args) {
+     }
+   }
+ 
++  setup_hotswap_agent();
++
+ #if !INCLUDE_CDS
+   if (DumpSharedSpaces || RequireSharedSpaces) {
+     jio_fprintf(defaultStream::error_stream(),
+@@ -4390,3 +4392,78 @@ bool Arguments::copy_expand_pid(const char* src, size_t srclen,
+   *b = '\0';
+   return (p == src_end); // return false if not all of the source was copied
+ }
++
++void Arguments::setup_hotswap_agent() {
++
++  if (DumpSharedSpaces)
++    return;
++
++  if (HotswapAgent == NULL || strcmp(HotswapAgent, "disabled") == 0)
++    return;
++
++  // Force AllowEnhancedClassRedefinition if HA is enabled
++  AllowEnhancedClassRedefinition = true;
++
++  bool ha_fatjar = strcmp(HotswapAgent, "fatjar") == 0;
++  bool ha_core = strcmp(HotswapAgent, "core") == 0;
++
++  // Set HotswapAgent
++  if (ha_fatjar || ha_core) {
++
++    char ext_path_str[JVM_MAXPATHLEN];
++
++    os::jvm_path(ext_path_str, sizeof(ext_path_str));
++    for (int i = 0; i < 3; i++) {
++      char *end = strrchr(ext_path_str, *os::file_separator());
++      if (end != NULL) *end = '\0';
++    }
++    size_t ext_path_length = strlen(ext_path_str);
++    if (ext_path_length >= 3) {
++      if (strcmp(ext_path_str + ext_path_length - 3, "lib") != 0) {
++        if (ext_path_length < JVM_MAXPATHLEN - 4) {
++          jio_snprintf(ext_path_str + ext_path_length, sizeof(ext_path_str) - ext_path_length, "%slib", os::file_separator());
++          ext_path_length += 4;
++        }
++      }
++    }
++    if (ext_path_length < JVM_MAXPATHLEN - 10) {
++      if (ha_fatjar) {
++        jio_snprintf(ext_path_str + ext_path_length, sizeof(ext_path_str) - ext_path_length,
++                     "%shotswap%shotswap-agent.jar", os::file_separator(), os::file_separator());
++      } else {
++        jio_snprintf(ext_path_str + ext_path_length, sizeof(ext_path_str) - ext_path_length,
++                     "%shotswap%shotswap-agent-core.jar", os::file_separator(), os::file_separator());
++      }
++      int fd = ::open(ext_path_str, O_RDONLY);
++      if (fd >= 0) {
++        os::close(fd);
++        size_t length = strlen(ext_path_str) + 1;
++        char *options = NEW_C_HEAP_ARRAY(char,  length, mtArguments);
++        jio_snprintf(options, length, "%s", ext_path_str);
++        add_init_agent("instrument", ext_path_str, false);
++        jio_fprintf(defaultStream::output_stream(), "Starting HotswapAgent '%s'\n", ext_path_str);
++      }
++      else
++      {
++        jio_fprintf(defaultStream::error_stream(), "HotswapAgent not found on path:'%s'!\n", ext_path_str);
++      }
++    }
++  }
++
++  // TODO: open it only for org.hotswap.agent module
++  // Use to access java.lang.reflect.Proxy/proxyCache
++  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_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_module_property("jdk.module.addopens", "java.base/java.io=ALL-UNNAMED", addopens_count++);
++  // java.beans.Introspector access
++  create_numbered_module_property("jdk.module.addopens", "java.desktop/java.beans=ALL-UNNAMED", addopens_count++);
++  // java.beans.Introspector access
++  create_numbered_module_property("jdk.module.addopens", "java.desktop/com.sun.beans=ALL-UNNAMED", addopens_count++);
++  // com.sun.beans.introspect.ClassInfo access
++  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_module_property("jdk.module.addopens", "java.desktop/com.sun.beans.util=ALL-UNNAMED", addopens_count++);
++
++}
+diff --git a/src/hotspot/share/runtime/arguments.hpp b/src/hotspot/share/runtime/arguments.hpp
+index b8eb4d0ab24..a14e11b48ef 100644
+--- a/src/hotspot/share/runtime/arguments.hpp
++++ b/src/hotspot/share/runtime/arguments.hpp
+@@ -496,6 +496,10 @@ class Arguments : AllStatic {
+ 
+   static size_t conservative_max_heap_alignment() { return _conservative_max_heap_alignment; }
+ 
++
++  // Initialize HotswapAgent
++  static void setup_hotswap_agent();
++
+   // Return the maximum size a heap with compressed oops can take
+   static size_t max_heap_for_compressed_oops();
+ 
+diff --git a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
+index 5b09758e089..e55b68e63a6 100644
+--- a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
++++ b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
+@@ -158,6 +158,15 @@ JVMFlag::Error NUMAInterleaveGranularityConstraintFunc(size_t value, bool verbos
+                         " ... " UINTX_FORMAT " ]\n", value, min, max);
+     return JVMFlag::VIOLATES_CONSTRAINT;
+   }
++  return JVMFlag::SUCCESS;
++}
+ 
++JVMFlag::Error HotswapAgentConstraintFunc(ccstr value, bool verbose) {
++  if (value != NULL) {
++    if (strcmp("disabled", value) != 0 && strcmp("fatjar", value) != 0 && strcmp("core", value) != 0 && strcmp("external", value) != 0) {
++      JVMFlag::printError(verbose, "HotswapAgent(%s) must be one of disabled,fatjar,core or external.\n", value);
++      return JVMFlag::VIOLATES_CONSTRAINT;
++    }
++  }
+   return JVMFlag::SUCCESS;
+ }
+diff --git a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp
+index 8bc3a9a1548..c5f58fd16ee 100644
+--- a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp
++++ b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp
+@@ -42,7 +42,8 @@
+   f(intx,   BiasedLockingDecayTimeFunc)               \
+   f(intx,   PerfDataSamplingIntervalFunc)             \
+   f(uintx,  VMPageSizeConstraintFunc)                 \
+-  f(size_t, NUMAInterleaveGranularityConstraintFunc)
++  f(size_t, NUMAInterleaveGranularityConstraintFunc)  \
++  f(ccstr, HotswapAgentConstraintFunc)
+ 
+ RUNTIME_CONSTRAINTS(DECLARE_CONSTRAINT)
+ 
+diff --git a/src/hotspot/share/runtime/globals.hpp b/src/hotspot/share/runtime/globals.hpp
+index fb6d1667156..20838a878ce 100644
+--- a/src/hotspot/share/runtime/globals.hpp
++++ b/src/hotspot/share/runtime/globals.hpp
+@@ -2090,7 +2090,16 @@ const intx ObjectAlignmentInBytes = 8;
+                                                                             \
+   product(bool, AllowEnhancedClassRedefinition, false,                      \
+              "Allow enhanced class redefinition beyond swapping method "    \
+-             "bodies")
++             "bodies")                                                      \
++                                                                            \
++  product(ccstr, HotswapAgent, "disabled",                                  \
++          "Specify HotswapAgent image to be used."                          \
++          "disabled: hotswap agent is disabled (default)"                   \
++          "fatjar: full HA. Use integrated hotswap-agent.jar"               \
++          "core: core HA. Use integrated hotswap-agent-core.jar"            \
++          "external: external HA. use external HA, open required JDK "      \
++          "modules.")                                                       \
++          constraint(HotswapAgentConstraintFunc, AfterErgo)
+ 
+ 
+ // end of RUNTIME_FLAGS
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0028-Support-for-redefinition-of-Well-Known-classses-java.patch

@@ -0,0 +1,347 @@
+From b2e59ba5f246798f4901fa16d8fd3aeceac8309e Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 7 Mar 2021 20:22:54 +0100
+Subject: [PATCH 28/42] Support for redefinition of Well Known classses
+ (java.*,jdk.*, sun.*)
+
+---
+ src/hotspot/share/ci/ciKlass.hpp              |  1 +
+ src/hotspot/share/ci/ciObjectFactory.cpp      | 34 ++++++++++
+ src/hotspot/share/ci/ciObjectFactory.hpp      |  6 ++
+ src/hotspot/share/classfile/vmClasses.cpp     | 10 +++
+ src/hotspot/share/classfile/vmClasses.hpp     |  4 ++
+ src/hotspot/share/classfile/vmSymbols.hpp     |  2 +
+ src/hotspot/share/compiler/compileBroker.cpp  | 11 ++++
+ src/hotspot/share/memory/universe.cpp         |  8 +++
+ src/hotspot/share/memory/universe.hpp         |  2 +
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 63 ++++++++++++++++++-
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |  2 +
+ 11 files changed, 142 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/ci/ciKlass.hpp b/src/hotspot/share/ci/ciKlass.hpp
+index 467284b7cde..644993a7513 100644
+--- a/src/hotspot/share/ci/ciKlass.hpp
++++ b/src/hotspot/share/ci/ciKlass.hpp
+@@ -129,6 +129,7 @@ public:
+   void print_name_on(outputStream* st);
+ 
+   const char* external_name() const;
++  Klass* new_version() { return get_Klass()->new_version(); }
+ };
+ 
+ #endif // SHARE_CI_CIKLASS_HPP
+diff --git a/src/hotspot/share/ci/ciObjectFactory.cpp b/src/hotspot/share/ci/ciObjectFactory.cpp
+index 664062a0f74..e9cb49be3ff 100644
+--- a/src/hotspot/share/ci/ciObjectFactory.cpp
++++ b/src/hotspot/share/ci/ciObjectFactory.cpp
+@@ -74,7 +74,10 @@ GrowableArray<ciMetadata*>* ciObjectFactory::_shared_ci_metadata = NULL;
+ ciSymbol*                 ciObjectFactory::_shared_ci_symbols[vmSymbols::number_of_symbols()];
+ int                       ciObjectFactory::_shared_ident_limit = 0;
+ volatile bool             ciObjectFactory::_initialized = false;
++volatile bool             ciObjectFactory::_reinitialize_vm_klasses = false;
+ 
++// TODO: review...
++Arena* ciObjectFactory::_initial_arena = NULL;
+ 
+ // ------------------------------------------------------------------
+ // ciObjectFactory::ciObjectFactory
+@@ -110,6 +113,7 @@ void ciObjectFactory::initialize() {
+   // compiler thread that initializes the initial ciObjectFactory which
+   // creates the shared ciObjects that all later ciObjectFactories use.
+   Arena* arena = new (mtCompiler) Arena(mtCompiler);
++  ciObjectFactory::_initial_arena = arena;
+   ciEnv initial(arena);
+   ciEnv* env = ciEnv::current();
+   env->_factory->init_shared_objects();
+@@ -118,6 +122,36 @@ void ciObjectFactory::initialize() {
+ 
+ }
+ 
++// (DCEVM) vm classes could be modified
++void ciObjectFactory::reinitialize_vm_classes() {
++  ASSERT_IN_VM;
++  JavaThread* thread = JavaThread::current();
++  HandleMark  handle_mark(thread);
++
++  // This Arena is long lived and exists in the resource mark of the
++  // compiler thread that initializes the initial ciObjectFactory which
++  // creates the shared ciObjects that all later ciObjectFactories use.
++  // Arena* arena = new (mtCompiler) Arena(mtCompiler);
++  ciEnv initial(ciObjectFactory::_initial_arena);
++  ciEnv* env = ciEnv::current();
++  env->_factory->do_reinitialize_vm_classes();
++  _reinitialize_vm_klasses = false;
++}
++
++// (DCEVM) vm classes could be modified
++void ciObjectFactory::do_reinitialize_vm_classes() {
++#define VM_CLASS_DEFN(name, ignore_s)   \
++  if (ciEnv::_##name != NULL && ciEnv::_##name->new_version() != NULL) { \
++    int old_ident = ciEnv::_##name->ident(); \
++    ciEnv::_##name = get_metadata(vmClasses::name())->as_instance_klass(); \
++    ciEnv::_##name->compute_nonstatic_fields(); \
++    ciEnv::_##name->set_ident(old_ident); \
++  }
++
++  VM_CLASSES_DO(VM_CLASS_DEFN)
++#undef VM_CLASS_DEFN
++}
++
+ void ciObjectFactory::init_shared_objects() {
+ 
+   _next_ident = 1;  // start numbering CI objects at 1
+diff --git a/src/hotspot/share/ci/ciObjectFactory.hpp b/src/hotspot/share/ci/ciObjectFactory.hpp
+index fdefc8e3b92..1ed8732cb40 100644
+--- a/src/hotspot/share/ci/ciObjectFactory.hpp
++++ b/src/hotspot/share/ci/ciObjectFactory.hpp
+@@ -42,9 +42,11 @@ class ciObjectFactory : public ResourceObj {
+ 
+ private:
+   static volatile bool _initialized;
++  static volatile bool _reinitialize_vm_klasses;
+   static GrowableArray<ciMetadata*>* _shared_ci_metadata;
+   static ciSymbol*                 _shared_ci_symbols[];
+   static int                       _shared_ident_limit;
++  static Arena*                    _initial_arena;
+ 
+   Arena*                           _arena;
+   GrowableArray<ciMetadata*>       _ci_metadata;
+@@ -90,10 +92,14 @@ private:
+   ciInstance* get_unloaded_instance(ciInstanceKlass* klass);
+ 
+   static int compare_cimetadata(ciMetadata** a, ciMetadata** b);
++  void do_reinitialize_vm_classes();
+ public:
+   static bool is_initialized() { return _initialized; }
++  static bool is_reinitialize_vm_klasses() { return _reinitialize_vm_klasses; }
++  static void set_reinitialize_vm_klasses() { _reinitialize_vm_klasses = true; }
+ 
+   static void initialize();
++  static void reinitialize_vm_classes();
+   void init_shared_objects();
+   void remove_symbols();
+ 
+diff --git a/src/hotspot/share/classfile/vmClasses.cpp b/src/hotspot/share/classfile/vmClasses.cpp
+index 2bd1ca65cc0..3ec13d952d8 100644
+--- a/src/hotspot/share/classfile/vmClasses.cpp
++++ b/src/hotspot/share/classfile/vmClasses.cpp
+@@ -259,3 +259,13 @@ BasicType vmClasses::box_klass_type(Klass* k) {
+   }
+   return T_OBJECT;
+ }
++
++bool vmClasses::update_vm_klass(InstanceKlass* old_klass, InstanceKlass* new_klass) {
++  for (int id = static_cast<int>(vmClassID::FIRST); id < static_cast<int>(vmClassID::LIMIT); id++) {
++    if (_klasses[id] == old_klass) {
++      _klasses[id] = new_klass;
++      return true;
++    }
++  }
++  return false;
++}
+diff --git a/src/hotspot/share/classfile/vmClasses.hpp b/src/hotspot/share/classfile/vmClasses.hpp
+index 364014a2514..b637ff0ae3d 100644
+--- a/src/hotspot/share/classfile/vmClasses.hpp
++++ b/src/hotspot/share/classfile/vmClasses.hpp
+@@ -110,6 +110,10 @@ public:
+   static bool Cloneable_klass_loaded()      { return is_loaded(VM_CLASS_AT(Cloneable_klass));          }
+   static bool Parameter_klass_loaded()      { return is_loaded(VM_CLASS_AT(reflect_Parameter_klass));  }
+   static bool ClassLoader_klass_loaded()    { return is_loaded(VM_CLASS_AT(ClassLoader_klass));        }
++
++  // (DCEVM) vmClasses could be modified
++  static bool update_vm_klass(InstanceKlass* new_klass, InstanceKlass* old_klass);
++
+ };
+ 
+ #endif // SHARE_CLASSFILE_VMCLASSES_HPP
+diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
+index dad94005f5c..82fd593224a 100644
+--- a/src/hotspot/share/classfile/vmSymbols.hpp
++++ b/src/hotspot/share/classfile/vmSymbols.hpp
+@@ -380,6 +380,8 @@
+   template(exit_method_name,                          "exit")                                     \
+   template(add_method_name,                           "add")                                      \
+   template(remove_method_name,                        "remove")                                   \
++  template(registerNatives_method_name,               "registerNatives")                          \
++  template(initIDs_method_name,                       "initIDs")                                  \
+   template(parent_name,                               "parent")                                   \
+   template(threads_name,                              "threads")                                  \
+   template(groups_name,                               "groups")                                   \
+diff --git a/src/hotspot/share/compiler/compileBroker.cpp b/src/hotspot/share/compiler/compileBroker.cpp
+index cc1dff089e8..aaf8e4b1f1e 100644
+--- a/src/hotspot/share/compiler/compileBroker.cpp
++++ b/src/hotspot/share/compiler/compileBroker.cpp
+@@ -1982,6 +1982,17 @@ void CompileBroker::compiler_thread_loop() {
+       if (method()->number_of_breakpoints() == 0) {
+         // Compile the method.
+         if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) {
++
++          // TODO: review usage of CompileThread_lock (DCEVM)
++          if (ciObjectFactory::is_reinitialize_vm_klasses())
++          {
++            ASSERT_IN_VM;
++            MutexLocker only_one(CompileThread_lock);
++            if (ciObjectFactory::is_reinitialize_vm_klasses()) {
++              ciObjectFactory::reinitialize_vm_classes();
++            }
++          }
++
+           invoke_compiler_on_method(task);
+           thread->start_idle_timer();
+         } else {
+diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
+index 4ae3b382b67..92da9bbe5f9 100644
+--- a/src/hotspot/share/memory/universe.cpp
++++ b/src/hotspot/share/memory/universe.cpp
+@@ -924,6 +924,14 @@ void Universe::initialize_known_methods(TRAPS) {
+                           vmSymbols::doStackWalk_signature(), false, CHECK);
+ }
+ 
++void Universe::reinitialize_loader_addClass_method(TRAPS) {
++  // Set up method for registering loaded classes in class loader vector
++  initialize_known_method(_loader_addClass_cache,
++                          vmClasses::ClassLoader_klass(),
++                          "addClass",
++                          vmSymbols::class_void_signature(), false, CHECK);
++}
++
+ void universe2_init() {
+   EXCEPTION_MARK;
+   Universe::genesis(CATCH);
+diff --git a/src/hotspot/share/memory/universe.hpp b/src/hotspot/share/memory/universe.hpp
+index 4b2211c415e..4d4c444220e 100644
+--- a/src/hotspot/share/memory/universe.hpp
++++ b/src/hotspot/share/memory/universe.hpp
+@@ -268,6 +268,8 @@ class Universe: AllStatic {
+   // Function to initialize these
+   static void initialize_known_methods(TRAPS);
+ 
++  static void reinitialize_loader_addClass_method(TRAPS);
++
+   static void create_preallocated_out_of_memory_errors(TRAPS);
+ 
+   // Reference pending list manipulation.  Access is protected by
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index b88c071be13..fb9da134e97 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -55,6 +55,7 @@
+ #include "prims/resolvedMethodTable.hpp"
+ #include "prims/methodHandles.hpp"
+ #include "runtime/deoptimization.hpp"
++#include "runtime/javaCalls.hpp"
+ #include "runtime/jniHandles.inline.hpp"
+ #include "runtime/relocator.hpp"
+ #include "runtime/fieldDescriptor.hpp"
+@@ -66,6 +67,7 @@
+ #include "gc/g1/g1CollectedHeap.hpp"
+ #include "gc/shared/dcevmSharedGC.hpp"
+ #include "gc/shared/scavengableNMethods.hpp"
++#include "gc/shared/oopStorageSet.inline.hpp"
+ #include "ci/ciObjectFactory.hpp"
+ 
+ Array<Method*>* VM_EnhancedRedefineClasses::_old_methods = NULL;
+@@ -521,6 +523,16 @@ void VM_EnhancedRedefineClasses::doit() {
+     redefine_single_class(_new_classes->at(i), thread);
+   }
+ 
++  // Update possible redefinition of vm classes (like ClassLoader)
++  for (int i = 0; i < _new_classes->length(); i++) {
++    InstanceKlass* cur = _new_classes->at(i);
++    if (cur->old_version() != NULL && vmClasses::update_vm_klass(InstanceKlass::cast(cur->old_version()), cur))
++    {
++      log_trace(redefine, class, obsolete, metadata)("Well known class updated %s", cur->external_name());
++      ciObjectFactory::set_reinitialize_vm_klasses();
++    }
++  }
++
+   // 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(thread);
+@@ -688,12 +700,56 @@ void VM_EnhancedRedefineClasses::doit() {
+   _timer_vm_op_doit.stop();
+ }
+ 
++void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
++  if (!_new_classes->is_empty()) {
++    ResourceMark rm(Thread::current());
++
++    for (int i = 0; i < _new_classes->length(); i++) {
++      InstanceKlass* cur = _new_classes->at(i);
++
++      if (cur->name()->starts_with("java/") || cur->name()->starts_with("jdk/") || cur->name()->starts_with("sun/")) {
++
++        if (cur == vmClasses::ClassLoader_klass()) {
++          // ClassLoader.addClass method is cached in Universe, we must redefine
++          Universe::reinitialize_loader_addClass_method(Thread::current());
++          log_trace(redefine, class, obsolete, metadata)("Reinitialize ClassLoade addClass method cache.");
++        }
++
++        // naive assumptions that only JDK classes has native static "registerNative" and "initIDs" methods
++        int end;
++        Symbol* signature = vmSymbols::registerNatives_method_name();
++        int midx = cur->find_method_by_name(signature, &end);
++        if (midx == -1) {
++          signature = vmSymbols::initIDs_method_name();
++          midx = cur->find_method_by_name(signature, &end);
++        }
++        Method* m = NULL;
++        if (midx != -1) {
++          m = cur->methods()->at(midx);
++        }
++        if (m != NULL && m->is_static() && m->is_native()) {
++          // call static registerNative if present
++          JavaValue result(T_VOID);
++          JavaCalls::call_static(&result,
++                                  cur,
++                                  signature,
++                                  vmSymbols::void_method_signature(),
++                                  Thread::current());
++          log_trace(redefine, class, obsolete, metadata)("Reregister natives of JDK class %s", cur->external_name());
++        }
++      }
++    }
++  }
++}
++
+ // Cleanup - runs in JVM thread
+ //  - free used memory
+ //  - end GC
+ void VM_EnhancedRedefineClasses::doit_epilogue() {
+   VM_GC_Operation::doit_epilogue();
+ 
++  reinitializeJDKClasses();
++
+   if (_new_classes != NULL) {
+     delete _new_classes;
+   }
+@@ -1623,7 +1679,12 @@ void VM_EnhancedRedefineClasses::check_methods_and_mark_as_obsolete() {
+ 
+       // obsolete methods need a unique idnum so they become new entries in
+       // the jmethodID cache in InstanceKlass
+-      assert(old_method->method_idnum() == new_method->method_idnum(), "must match");
++      if (old_method->method_idnum() != new_method->method_idnum()) {
++        log_error(redefine, class, normalize)
++          ("Method not matched: %d != %d  old: %s = new: %s",  old_method->method_idnum(), new_method->method_idnum(),
++              old_method->name_and_sig_as_C_string(), new_method->name_and_sig_as_C_string());
++        // assert(old_method->method_idnum() == new_method->method_idnum(), "must match");
++      }
+ //      u2 num = InstanceKlass::cast(_the_class_oop)->next_method_idnum();
+ //      if (num != ConstMethod::UNSET_IDNUM) {
+ //        old_method->set_method_idnum(num);
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index ae0a15281f3..d0d2f78aa62 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -150,6 +150,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+ 
+   u8 next_id();
+ 
++  void reinitializeJDKClasses();
++
+   static void check_class(InstanceKlass* k_oop, TRAPS);
+ 
+   static void dump_methods();
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0029-Fix-fastdebug-compilation-issues-cast_to_oop.patch

@@ -0,0 +1,260 @@
+From 76c2c517d54f0fdbae2cb10cceb6c1aab7ee3a7b Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 15 May 2021 10:31:28 +0200
+Subject: [PATCH 29/42] Fix fastdebug compilation issues - cast_to_oop
+
+---
+ .../share/gc/g1/g1FullGCCompactTask.cpp       | 12 +++++-----
+ .../share/gc/g1/g1FullGCCompactionPoint.cpp   | 10 ++++-----
+ .../share/gc/g1/g1FullGCPrepareTask.cpp       |  4 ++--
+ src/hotspot/share/gc/shared/dcevmSharedGC.cpp |  6 ++---
+ src/hotspot/share/gc/shared/space.cpp         | 22 +++++++++----------
+ src/hotspot/share/gc/shared/space.inline.hpp  | 14 ++++++------
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    |  2 +-
+ 7 files changed, 35 insertions(+), 35 deletions(-)
+
+diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
+index 058dea90828..765630a9826 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
++++ b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
+@@ -183,18 +183,18 @@ size_t G1FullGCCompactTask::G1CompactRegionClosureDcevm::apply(oop obj) {
+     Klass* new_version = obj->klass()->new_version();
+     if (new_version->update_information() == NULL) {
+       Copy::aligned_conjoint_words(obj_addr, destination, size);
+-      oop(destination)->set_klass(new_version);
++      cast_to_oop(destination)->set_klass(new_version);
+     } else {
+-      DcevmSharedGC::update_fields(obj, oop(destination));
++      DcevmSharedGC::update_fields(obj, cast_to_oop(destination));
+     }
+-    oop(destination)->init_mark();
+-    assert(oop(destination)->klass() != NULL, "should have a class");
++    cast_to_oop(destination)->init_mark();
++    assert(cast_to_oop(destination)->klass() != NULL, "should have a class");
+     return size;
+   }
+ 
+   Copy::aligned_conjoint_words(obj_addr, destination, size);
+-  oop(destination)->init_mark();
+-  assert(oop(destination)->klass() != NULL, "should have a class");
++  cast_to_oop(destination)->init_mark();
++  assert(cast_to_oop(destination)->klass() != NULL, "should have a class");
+ 
+   return size;
+ }
+diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
+index 87b1977128a..028c182e68f 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
++++ b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
+@@ -171,7 +171,7 @@ void G1FullGCCompactionPoint::forward_dcevm(oop object, size_t size, bool force_
+ 
+   // Store a forwarding pointer if the object should be moved.
+   if (cast_from_oop<HeapWord*>(object) != _compaction_top || force_forward) {
+-    object->forward_to(oop(_compaction_top));
++    object->forward_to(cast_to_oop(_compaction_top));
+   } else {
+     if (object->forwardee() != NULL) {
+       // Object should not move but mark-word is used so it looks like the
+@@ -208,17 +208,17 @@ void G1FullGCCompactionPoint::forward_rescued() {
+   for (;i<rescued_oops()->length(); i++) {
+     HeapWord* q = rescued_oops()->at(i);
+ 
+-    size_t size = oop(q)->size();
++    size_t size = cast_to_oop(q)->size();
+ 
+     // (DCEVM) There is a new version of the class of q => different size
+-    if (oop(q)->klass()->new_version() != NULL) {
++    if (cast_to_oop(q)->klass()->new_version() != NULL) {
+       // assert(size != new_size, "instances without changed size have to be updated prior to GC run");
+-      size = oop(q)->size_given_klass(oop(q)->klass()->new_version());
++      size = cast_to_oop(q)->size_given_klass(cast_to_oop(q)->klass()->new_version());
+     }
+     if (forward_compact_top(size) == NULL) {
+       break;
+     }
+-    forward_dcevm(oop(q), size, true);
++    forward_dcevm(cast_to_oop(q), size, true);
+   }
+   _last_rescued_oop = i;
+ }
+diff --git a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+index 05f0444cc7a..93c066383a1 100644
+--- a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
++++ b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
+@@ -297,7 +297,7 @@ 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))) {
++  if (compact_top == NULL || must_rescue(object, cast_to_oop(compact_top))) {
+     _cp->rescued_oops()->append(cast_from_oop<HeapWord*>(object));
+   } else {
+     _cp->forward_dcevm(object, forward_size, (size != forward_size));
+@@ -308,7 +308,7 @@ size_t G1FullGCPrepareTask::G1PrepareCompactLiveClosureDcevm::apply(oop object)
+ 
+ bool G1FullGCPrepareTask::G1PrepareCompactLiveClosureDcevm::must_rescue(oop old_obj, oop new_obj) {
+   // Only redefined objects can have the need to be rescued.
+-  if (oop(old_obj)->klass()->new_version() == NULL) {
++  if (old_obj->klass()->new_version() == NULL) {
+     return false;
+   }
+ 
+diff --git a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
+index edc19a3077d..de3d518b696 100644
+--- a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
++++ b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
+@@ -46,7 +46,7 @@ void DcevmSharedGC::copy_rescued_objects_back(GrowableArray<HeapWord*>* rescued_
+   if (rescued_oops != NULL) {
+     for (int i=from; i < to; i++) {
+       HeapWord* rescued_ptr = rescued_oops->at(i);
+-      oop rescued_obj = (oop) rescued_ptr;
++      oop rescued_obj = cast_to_oop(rescued_ptr);
+ 
+       int size = rescued_obj->size();
+       oop new_obj = rescued_obj->forwardee();
+@@ -75,7 +75,7 @@ void DcevmSharedGC::clear_rescued_objects_resource(GrowableArray<HeapWord*>* res
+   if (rescued_oops != NULL) {
+     for (int i=0; i < rescued_oops->length(); i++) {
+       HeapWord* rescued_ptr = rescued_oops->at(i);
+-      int size = ((oop) rescued_ptr)->size();
++      int size = cast_to_oop(rescued_ptr)->size();
+       FREE_RESOURCE_ARRAY(HeapWord, rescued_ptr, size);
+     }
+     rescued_oops->clear();
+@@ -114,7 +114,7 @@ void DcevmSharedGC::update_fields(oop q, oop new_location) {
+     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;
++       q = cast_to_oop(tmp);
+        Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(tmp_obj), cast_from_oop<HeapWord*>(q), size);
+     }
+   }
+diff --git a/src/hotspot/share/gc/shared/space.cpp b/src/hotspot/share/gc/shared/space.cpp
+index 29a81348d2d..000760744f7 100644
+--- a/src/hotspot/share/gc/shared/space.cpp
++++ b/src/hotspot/share/gc/shared/space.cpp
+@@ -475,7 +475,7 @@ bool CompactibleSpace::must_rescue(oop old_obj, oop new_obj) {
+ 
+   int new_size = old_obj->size_given_klass(oop(old_obj)->klass()->new_version());
+   int original_size = old_obj->size();
+-  
++
+   Generation* tenured_gen = GenCollectedHeap::heap()->old_gen();
+   bool old_in_tenured = tenured_gen->is_in_reserved(old_obj);
+   bool new_in_tenured = tenured_gen->is_in_reserved(new_obj);
+@@ -513,9 +513,9 @@ bool CompactibleSpace::must_rescue(oop old_obj, oop new_obj) {
+ }
+ 
+ HeapWord* CompactibleSpace::rescue(HeapWord* old_obj) {
+-  assert(must_rescue(oop(old_obj), oop(old_obj)->forwardee()), "do not call otherwise");
++  assert(must_rescue(cast_to_oop(old_obj), cast_to_oop(old_obj)->forwardee()), "do not call otherwise");
+ 
+-  int size = oop(old_obj)->size();
++  int size = cast_to_oop(old_obj)->size();
+   HeapWord* rescued_obj = NEW_RESOURCE_ARRAY(HeapWord, size);
+   Copy::aligned_disjoint_words(old_obj, rescued_obj, size);
+ 
+@@ -803,16 +803,16 @@ HeapWord* CompactibleSpace::forward_with_rescue(HeapWord* q, size_t size,
+   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) {
++  if (cast_to_oop(q)->klass()->new_version() != NULL) {
+ 
+-    size_t new_size = oop(q)->size_given_klass(oop(q)->klass()->new_version());
++    size_t new_size = cast_to_oop(q)->size_given_klass(cast_to_oop(q)->klass()->new_version());
+     // assert(size != new_size, "instances without changed size have to be updated prior to GC run");
+     forward_size = new_size;
+   }
+ 
+   compact_top = forward_compact_top(forward_size, cp, compact_top);
+ 
+-  if (must_rescue(oop(q), oop(compact_top))) {
++  if (must_rescue(cast_to_oop(q), cast_to_oop(compact_top))) {
+     if (MarkSweep::_rescued_oops == NULL) {
+       MarkSweep::_rescued_oops = new GrowableArray<HeapWord*>(128);
+     }
+@@ -820,7 +820,7 @@ HeapWord* CompactibleSpace::forward_with_rescue(HeapWord* q, size_t size,
+     return compact_top;
+   }
+ 
+-  return forward(oop(q), forward_size, cp, compact_top, force_forward);
++  return forward(cast_to_oop(q), forward_size, cp, compact_top, force_forward);
+ }
+ 
+ // Compute the forwarding addresses for the objects that need to be rescued.
+@@ -830,17 +830,17 @@ HeapWord* CompactibleSpace::forward_rescued(CompactPoint* cp, HeapWord* compact_
+     for (int i=0; i<MarkSweep::_rescued_oops->length(); i++) {
+       HeapWord* q = MarkSweep::_rescued_oops->at(i);
+ 
+-      /* size_t size = oop(q)->size();  changing this for cms for perm gen */
++      /* size_t size = cast_to_oop(q)->size();  changing this for cms for perm gen */
+       size_t size = block_size(q);
+ 
+       // (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());
++      if (cast_to_oop(q)->klass()->new_version() != NULL) {
++        size_t new_size = cast_to_oop(q)->size_given_klass(cast_to_oop(q)->klass()->new_version());
+         // 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, true);
++      compact_top = cp->space->forward(cast_to_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.inline.hpp b/src/hotspot/share/gc/shared/space.inline.hpp
+index cafa2503ef4..076ce6b0cce 100644
+--- a/src/hotspot/share/gc/shared/space.inline.hpp
++++ b/src/hotspot/share/gc/shared/space.inline.hpp
+@@ -351,7 +351,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
+       size_t size = space->obj_size(cur_obj);
+       HeapWord* compaction_top = cast_from_oop<HeapWord*>(cast_to_oop(cur_obj)->forwardee());
+ 
+-      if (redefinition_run &&  space->must_rescue(oop(cur_obj), oop(cur_obj)->forwardee())) {
++      if (redefinition_run &&  space->must_rescue(cast_to_oop(cur_obj), cast_to_oop(cur_obj)->forwardee())) {
+          space->rescue(cur_obj);
+         debug_only(Copy::fill_to_words(cur_obj, size, 0));
+         cur_obj += size;
+@@ -363,16 +363,16 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
+ 
+       // copy object and reinit its mark
+       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 (redefinition_run && cast_to_oop(cur_obj)->klass()->new_version() != NULL) {
++        Klass* new_version = cast_to_oop(cur_obj)->klass()->new_version();
+         if (new_version->update_information() == NULL) {
+           Copy::aligned_conjoint_words(cur_obj, compaction_top, size);
+-          oop(compaction_top)->set_klass(new_version);
++          cast_to_oop(compaction_top)->set_klass(new_version);
+         } else {
+-          DcevmSharedGC::update_fields(oop(cur_obj), oop(compaction_top));
++          DcevmSharedGC::update_fields(cast_to_oop(cur_obj), cast_to_oop(compaction_top));
+         }
+-        oop(compaction_top)->init_mark();
+-        assert(oop(compaction_top)->klass() != NULL, "should have a class");
++        cast_to_oop(compaction_top)->init_mark();
++        assert(cast_to_oop(compaction_top)->klass() != NULL, "should have a class");
+ 
+         debug_only(prev_obj = cur_obj);
+         cur_obj += size;
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index fb9da134e97..890382e2029 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -439,7 +439,7 @@ public:
+     int size = o->size();
+     if (_tmp_obj_size < size) {
+       _tmp_obj_size = size;
+-      _tmp_obj = (oop)resource_allocate_bytes(size * HeapWordSize);
++      _tmp_obj = cast_to_oop(resource_allocate_bytes(size * HeapWordSize));
+     }
+     Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(o), cast_from_oop<HeapWord*>(_tmp_obj), size);
+   }
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0030-JBR-3458-Skip-dynamic-proxy-classes-based-on-com.sun.patch

@@ -0,0 +1,27 @@
+From e3dcad4df8369cfa4a5eb90058ce265c0233b272 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Fri, 19 Mar 2021 19:13:38 +0100
+Subject: [PATCH 30/42] JBR-3458: Skip dynamic proxy classes based on
+ com.sun.proxy
+
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 890382e2029..90dfc1ae545 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -707,7 +707,8 @@ void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
+     for (int i = 0; i < _new_classes->length(); i++) {
+       InstanceKlass* cur = _new_classes->at(i);
+ 
+-      if (cur->name()->starts_with("java/") || cur->name()->starts_with("jdk/") || cur->name()->starts_with("sun/")) {
++      if ((cur->name()->starts_with("java/") || cur->name()->starts_with("jdk/") || cur->name()->starts_with("sun/"))
++          && cur->name()->index_of_at(0, "$$") == -1) { // skip dynamic proxies
+ 
+         if (cur == vmClasses::ClassLoader_klass()) {
+           // ClassLoader.addClass method is cached in Universe, we must redefine
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0031-JBR-3459-Fix-race-condition-in-ClassLoaderDataGraph-.patch

@@ -0,0 +1,81 @@
+From b57c414d7885df5142a4a6bbf78001e96938f8ac Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Sat, 20 Mar 2021 20:51:08 +0100
+Subject: [PATCH 31/42] JBR-3459: Fix race condition in
+ ClassLoaderDataGraph::classes_do
+
+InstanceKlass in ClassLoaderData can be uninitialized when
+ClassLoaderDataGraph::classes_do is called. Using
+ClassLoaderDataGraph::dictionary_classes_do is safe but problem is still
+persisting with anonymous classes.
+---
+ .../share/classfile/classLoaderDataGraph.cpp       | 10 ++++++++++
+ .../share/classfile/classLoaderDataGraph.hpp       |  4 ++++
+ .../share/prims/jvmtiEnhancedRedefineClasses.cpp   | 14 ++++++++++++--
+ 3 files changed, 26 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.cpp b/src/hotspot/share/classfile/classLoaderDataGraph.cpp
+index 67ade5709f6..aa2a6bcec6b 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.cpp
++++ b/src/hotspot/share/classfile/classLoaderDataGraph.cpp
+@@ -361,6 +361,16 @@ void ClassLoaderDataGraph::classes_do(KlassClosure* klass_closure) {
+   }
+ }
+ 
++void ClassLoaderDataGraph::anonymous_or_hidden_classes_do(KlassClosure* klass_closure) {
++  Thread* thread = Thread::current();
++  for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
++    if (cld->has_class_mirror_holder()) {
++      Handle holder(thread, cld->holder_phantom());
++      cld->classes_do(klass_closure);
++    }
++  }
++}
++
+ void ClassLoaderDataGraph::classes_do(void f(Klass* const)) {
+   ClassLoaderDataGraphIterator iter;
+   while (ClassLoaderData* cld = iter.get_next()) {
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.hpp b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+index ebdb0bc2c8c..da712eaf55f 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.hpp
++++ b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+@@ -78,6 +78,10 @@ class ClassLoaderDataGraph : public AllStatic {
+   // for redefinition.  These classes are removed during the next class unloading.
+   // Walking the ClassLoaderDataGraph also includes hidden classes.
+   static void classes_do(KlassClosure* klass_closure);
++
++  // Enhanced class redefinition
++  static void anonymous_or_hidden_classes_do(KlassClosure* klass_closure);
++
+   static void classes_do(void f(Klass* const));
+   static void methods_do(void f(Method*));
+   static void modules_do(void f(ModuleEntry*));
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 90dfc1ae545..10407755457 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -2164,9 +2164,19 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
+ 
+   {
+     MutexLocker mcld(ClassLoaderDataGraph_lock);
+-    ClassLoaderDataGraph::classes_do(&closure);
++
++    // 0. we can't use ClassLoaderDataGraph::classes_do since classes can be uninitialized in cld,
++    // fully initialized class is in system dictionary
++    // ClassLoaderDataGraph::classes_do(&closure);
++
++    // 1. Scan over dictionaries
++    ClassLoaderDataGraph::dictionary_classes_do(&closure);
++
++    // 2. Anonymous or hidden class is not in dictionary, we have to iterate anonymous cld directly, but there is race cond...
++    // TODO: review ... anonymous class is added to cld before InstanceKlass initialization,
++    //                  find out how to check if the InstanceKlass is initialized
++    ClassLoaderDataGraph::anonymous_or_hidden_classes_do(&closure);
+   }
+-  //ClassLoaderDataGraph::dictionary_classes_do(&closure);
+ 
+   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
+ 
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0032-Fix-compilation-problems.patch

@@ -0,0 +1,39 @@
+From 66d53205a84c8e4db40fb2fc91f563cde458afcc Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sat, 15 May 2021 13:01:25 +0200
+Subject: [PATCH 32/42] Fix compilation problems
+
+---
+ src/hotspot/share/oops/instanceKlass.cpp                 | 2 +-
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index 3cc96f98f41..c54b6b1bf46 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -978,7 +978,7 @@ bool InstanceKlass::link_class_impl(TRAPS) {
+         set_init_state(linked);
+       }
+       // (DCEVM) Must check for old version in order to prevent infinite loops.
+-      if (JvmtiExport::should_post_class_prepare()  && (!AllowEnhancedClassRedefinition || old_version() == NULL /* JVMTI deadlock otherwise */) {
++      if (JvmtiExport::should_post_class_prepare()  && (!AllowEnhancedClassRedefinition || old_version() == NULL /* JVMTI deadlock otherwise */)) {
+         JvmtiExport::post_class_prepare(THREAD, this);
+       }
+     }
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 10407755457..e87d4452d31 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -708,7 +708,7 @@ void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
+       InstanceKlass* cur = _new_classes->at(i);
+ 
+       if ((cur->name()->starts_with("java/") || cur->name()->starts_with("jdk/") || cur->name()->starts_with("sun/"))
+-          && cur->name()->index_of_at(0, "$$") == -1) { // skip dynamic proxies
++          && cur->name()->index_of_at(0, "$$", (int) strlen("$$")) == -1) { // skip dynamic proxies
+ 
+         if (cur == vmClasses::ClassLoader_klass()) {
+           // ClassLoader.addClass method is cached in Universe, we must redefine
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0033-Fix-dcevm-issues-related-to-refactorization-of-Threa.patch

@@ -0,0 +1,350 @@
+From fd5b6cd29a5dfed532b0c6ac80c94271f388c5bc Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 20 Jun 2021 19:11:16 +0200
+Subject: [PATCH 33/42] Fix dcevm issues related to refactorization of Thread
+ to JavaThread
+
+---
+ src/hotspot/share/cds/lambdaFormInvokers.cpp  |  1 +
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 72 +++++++++----------
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    | 12 ++--
+ 3 files changed, 39 insertions(+), 46 deletions(-)
+
+diff --git a/src/hotspot/share/cds/lambdaFormInvokers.cpp b/src/hotspot/share/cds/lambdaFormInvokers.cpp
+index 5c058dc43ac..9de28f740ac 100644
+--- a/src/hotspot/share/cds/lambdaFormInvokers.cpp
++++ b/src/hotspot/share/cds/lambdaFormInvokers.cpp
+@@ -178,6 +178,7 @@ void LambdaFormInvokers::reload_class(char* name, ClassFileStream& st, TRAPS) {
+                                                    class_name,
+                                                    cld,
+                                                    cl_info,
++                                                   false, // pick_newest
+                                                    CHECK);
+ 
+   {
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index e87d4452d31..0aeeea4e7a4 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -23,7 +23,6 @@
+  */
+ 
+ #include "precompiled.hpp"
+-#include "aot/aotLoader.hpp"
+ #include "classfile/classFileParser.hpp"
+ #include "classfile/classFileStream.hpp"
+ #include "classfile/classLoadInfo.hpp"
+@@ -38,7 +37,7 @@
+ #include "interpreter/rewriter.hpp"
+ #include "logging/logStream.hpp"
+ #include "memory/metadataFactory.hpp"
+-#include "memory/metaspaceShared.hpp"
++#include "cds/metaspaceShared.hpp"
+ #include "memory/resourceArea.hpp"
+ #include "memory/iterator.inline.hpp"
+ #include "oops/fieldStreams.hpp"
+@@ -156,7 +155,7 @@ bool VM_EnhancedRedefineClasses::doit_prologue() {
+ 
+   // We first load new class versions in the prologue, because somewhere down the
+   // call chain it is required that the current thread is a Java thread.
+-  _res = load_new_class_versions(Thread::current());
++  _res = load_new_class_versions(JavaThread::current());
+ 
+   // prepare GC, lock heap
+   if (_res == JVMTI_ERROR_NONE && !VM_GC_Operation::doit_prologue()) {
+@@ -250,7 +249,6 @@ void VM_EnhancedRedefineClasses::root_oops_do(OopClosure *oopClosure) {
+   Universe::vm_global()->oops_do(oopClosure);
+ 
+   Threads::oops_do(oopClosure, NULL);
+-  AOT_ONLY(AOTLoader::oops_do(oopClosure);)
+   OopStorageSet::strong_oops_do(oopClosure);
+ 
+   CodeBlobToOopClosure blobClosure(oopClosure, CodeBlobToOopClosure::FixRelocations);
+@@ -520,7 +518,7 @@ void VM_EnhancedRedefineClasses::doit() {
+                            // before the stack walk again.
+ 
+   for (int i = 0; i < _new_classes->length(); i++) {
+-    redefine_single_class(_new_classes->at(i), thread);
++    redefine_single_class(thread, _new_classes->at(i));
+   }
+ 
+   // Update possible redefinition of vm classes (like ClassLoader)
+@@ -535,7 +533,7 @@ 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(thread);
++    flush_dependent_code();
+   // }
+ 
+   // Adjust constantpool caches for all classes that reference methods of the evolved class.
+@@ -692,7 +690,7 @@ void VM_EnhancedRedefineClasses::doit() {
+     assert(new_version->super() == NULL || new_version->super()->new_version() == NULL, "Super class must be newest version");
+   }
+   log_trace(redefine, class, obsolete, metadata)("calling check_class");
+-  ClassLoaderData::the_null_class_loader_data()->dictionary()->classes_do(check_class, thread);
++  ClassLoaderData::the_null_class_loader_data()->dictionary()->classes_do(check_class);
+ #ifdef PRODUCT
+   }
+ #endif
+@@ -702,7 +700,7 @@ void VM_EnhancedRedefineClasses::doit() {
+ 
+ void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
+   if (!_new_classes->is_empty()) {
+-    ResourceMark rm(Thread::current());
++    ResourceMark rm(JavaThread::current());
+ 
+     for (int i = 0; i < _new_classes->length(); i++) {
+       InstanceKlass* cur = _new_classes->at(i);
+@@ -712,7 +710,7 @@ void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
+ 
+         if (cur == vmClasses::ClassLoader_klass()) {
+           // ClassLoader.addClass method is cached in Universe, we must redefine
+-          Universe::reinitialize_loader_addClass_method(Thread::current());
++          Universe::reinitialize_loader_addClass_method(JavaThread::current());
+           log_trace(redefine, class, obsolete, metadata)("Reinitialize ClassLoade addClass method cache.");
+         }
+ 
+@@ -735,7 +733,7 @@ void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
+                                   cur,
+                                   signature,
+                                   vmSymbols::void_method_signature(),
+-                                  Thread::current());
++                                  JavaThread::current());
+           log_trace(redefine, class, obsolete, metadata)("Reregister natives of JDK class %s", cur->external_name());
+         }
+       }
+@@ -793,7 +791,7 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
+ 
+   // Cannot redefine or retransform an anonymous class.
+   // TODO: check if is correct in j15
+-  if (InstanceKlass::cast(k)->is_unsafe_anonymous() || InstanceKlass::cast(k)->is_hidden()) {
++  if (InstanceKlass::cast(k)->is_hidden()) {
+     return false;
+   }
+   return true;
+@@ -879,23 +877,15 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+ 
+     InstanceKlass* k;
+ 
+-    if (the_class->is_unsafe_anonymous() || the_class->is_hidden()) {
++    if (the_class->is_hidden()) {
+       InstanceKlass* dynamic_host_class = NULL;
+-      InstanceKlass* unsafe_anonymous_host = NULL;
+ 
+       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,
+-                            unsafe_anonymous_host,
+-                            NULL,     // cp_patches
+                             dynamic_host_class,     // dynamic_nest_host
+                             Handle(), // classData
+                             the_class->is_hidden(),    // is_hidden
+@@ -1143,7 +1133,7 @@ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_
+   Array<Method*>* k_new_methods(new_class->methods());
+   int n_old_methods = k_old_methods->length();
+   int n_new_methods = k_new_methods->length();
+-  Thread* thread = Thread::current();
++  JavaThread* thread = JavaThread::current();
+ 
+   int ni = 0;
+   int oi = 0;
+@@ -1491,8 +1481,8 @@ 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, TRAPS) {
+-  RawBytecodeStream bcs(methodHandle(THREAD, method));
++void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
++  RawBytecodeStream bcs(methodHandle(Thread::current(), method));
+   Bytecodes::Code code;
+   Bytecodes::Code java_code;
+   while (!bcs.is_last_bytecode()) {
+@@ -1535,10 +1525,10 @@ void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method, TRAPS) {
+       assert(code2 == Bytecodes::_fast_igetfield ||
+              code2 == Bytecodes::_fast_agetfield ||
+              code2 == Bytecodes::_fast_fgetfield, "");
+-        *(bcp + 1) = Bytecodes::java_code(code2);
+-      }
++      *(bcp + 1) = Bytecodes::java_code(code2);
+     }
+   }
++}
+ 
+ // Unevolving classes may point to old methods directly
+ // from their constant pool caches, itables, and/or vtables. We
+@@ -1559,9 +1549,11 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
+   constantPoolHandle other_cp = constantPoolHandle(_thread, ik->constants());
+ 
+   // Update host klass of anonymous classes (for example, produced by lambdas) to 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()));
+   }
++  */
+ 
+   // FIXME: check new nest_host for hidden
+ 
+@@ -1596,7 +1588,7 @@ 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, _thread);
++    ik->methods_do(unpatch_bytecode);
+   }
+ }
+ 
+@@ -1628,7 +1620,7 @@ void VM_EnhancedRedefineClasses::MethodDataCleaner::do_klass(Klass* k) {
+ }
+ 
+ 
+-void VM_EnhancedRedefineClasses::update_jmethod_ids(TRAPS) {
++void VM_EnhancedRedefineClasses::update_jmethod_ids(Thread* current) {
+   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();
+@@ -1639,10 +1631,10 @@ void VM_EnhancedRedefineClasses::update_jmethod_ids(TRAPS) {
+ 
+     if (jmid != NULL) {
+       // There is a jmethodID, change it to point to the new method
+-      methodHandle new_method_h(THREAD, _matching_new_methods[j]);
++      methodHandle new_method_h(current, _matching_new_methods[j]);
+ 
+       if (old_method->new_version() == NULL) {
+-        methodHandle old_method_h(THREAD, _matching_old_methods[j]);
++        methodHandle old_method_h(current, _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 {
+@@ -1864,7 +1856,7 @@ void VM_EnhancedRedefineClasses::mark_dependent_code(InstanceKlass* ik) {
+ // subsequent calls to RedefineClasses need only throw away code
+ // that depends on the class.
+ //
+-void VM_EnhancedRedefineClasses::flush_dependent_code(TRAPS) {
++void VM_EnhancedRedefineClasses::flush_dependent_code() {
+   assert_locked_or_safepoint(Compile_lock);
+ 
+   // All dependencies have been recorded from startup or this is a second or
+@@ -1959,9 +1951,9 @@ void VM_EnhancedRedefineClasses::compute_added_deleted_matching_methods() {
+ //      a helper method to be specified. The interesting parameters
+ //      that we would like to pass to the helper method are saved in
+ //      static global fields in the VM operation.
+-void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_oop, TRAPS) {
++void VM_EnhancedRedefineClasses::redefine_single_class(Thread* current, InstanceKlass* new_class_oop) {
+ 
+-  HandleMark hm(THREAD);   // make sure handles from this call are freed
++  HandleMark hm(current);   // make sure handles from this call are freed
+ 
+   InstanceKlass* new_class = new_class_oop;
+   InstanceKlass* the_class = InstanceKlass::cast(new_class_oop->old_version());
+@@ -1980,7 +1972,7 @@ 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(THREAD);
++  update_jmethod_ids(current);
+ 
+   _any_class_has_resolved_methods = the_class->has_resolved_methods() || _any_class_has_resolved_methods;
+ 
+@@ -2002,14 +1994,14 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
+   */
+ 
+   {
+-    ResourceMark rm(THREAD);
++    ResourceMark rm(current);
+     // increment the classRedefinedCount field in the_class and in any
+     // direct and indirect subclasses of the_class
+-    increment_class_counter(new_class, THREAD);
++    increment_class_counter(current, new_class);
+     log_info(redefine, class, load)
+       ("redefined name=%s, count=%d (avail_mem=" UINT64_FORMAT "K)",
+        new_class->external_name(), java_lang_Class::classRedefinedCount(new_class->java_mirror()), os::available_memory() >> 10);
+-    Events::log_redefinition(THREAD, "redefined class name=%s, count=%d",
++    Events::log_redefinition(current, "redefined class name=%s, count=%d",
+                              new_class->external_name(),
+                              java_lang_Class::classRedefinedCount(new_class->java_mirror()));
+   }
+@@ -2018,21 +2010,21 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
+ 
+ // Increment the classRedefinedCount field in the specific InstanceKlass
+ // and in all direct and indirect subclasses.
+-void VM_EnhancedRedefineClasses::increment_class_counter(InstanceKlass *ik, TRAPS) {
++void VM_EnhancedRedefineClasses::increment_class_counter(Thread* current, InstanceKlass *ik) {
+   oop class_mirror = ik->old_version()->java_mirror();
+   Klass* class_oop = java_lang_Class::as_Klass(class_mirror);
+   int new_count = java_lang_Class::classRedefinedCount(class_mirror) + 1;
+   java_lang_Class::set_classRedefinedCount(ik->java_mirror(), new_count);
+ }
+ 
+-void VM_EnhancedRedefineClasses::check_class(InstanceKlass* ik, TRAPS) {
++void VM_EnhancedRedefineClasses::check_class(InstanceKlass* ik) {
+   if (ik->is_instance_klass() && ik->old_version() != NULL) {
+-    HandleMark hm(THREAD);
++    HandleMark hm(Thread::current());
+ 
+     assert(ik->new_version() == NULL, "must be latest version in system dictionary");
+ 
+     if (ik->vtable_length() > 0) {
+-      ResourceMark rm(THREAD);
++      ResourceMark rm(Thread::current());
+       assert(ik->vtable().check_no_old_or_obsolete_entries(), "old method found");
+       ik->vtable().verify(tty, true);
+     }
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index d0d2f78aa62..252287a3697 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -122,7 +122,7 @@ 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, TRAPS);
++  static void unpatch_bytecode(Method* method);
+ 
+   void root_oops_do(OopClosure *oopClosure);
+ 
+@@ -131,28 +131,28 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+   void compute_added_deleted_matching_methods();
+ 
+   // Change jmethodIDs to point to the new methods
+-  void update_jmethod_ids(TRAPS);
++  void update_jmethod_ids(Thread* current);
+ 
+   // marking methods as old and/or obsolete
+   void check_methods_and_mark_as_obsolete();
+   void transfer_old_native_function_registrations(InstanceKlass* the_class);
+ 
+   // Install the redefinition of a class
+-  void redefine_single_class(InstanceKlass* new_class_oop, TRAPS);
++  void redefine_single_class(Thread* current, InstanceKlass* new_class_oop);
+ 
+   // Increment the classRedefinedCount field in the specific InstanceKlass
+   // and in all direct and indirect subclasses.
+-  void increment_class_counter(InstanceKlass *ik, TRAPS);
++  void increment_class_counter(Thread* current, InstanceKlass *ik);
+ 
+   void mark_dependent_code(InstanceKlass* ik);
+ 
+-  void flush_dependent_code(TRAPS);
++  void flush_dependent_code();
+ 
+   u8 next_id();
+ 
+   void reinitializeJDKClasses();
+ 
+-  static void check_class(InstanceKlass* k_oop, TRAPS);
++  static void check_class(InstanceKlass* k_oop);
+ 
+   static void dump_methods();
+ 
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0034-Fix-init_method_MemberName-after-Thread-to-JavaThrea.patch

@@ -0,0 +1,142 @@
+From 52c661cebf92d4ad68058ada5d3463e54428aee7 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 20 Jun 2021 19:42:51 +0200
+Subject: [PATCH 34/42] Fix init_method_MemberName after Thread to JavaThread
+ refactorization
+
+---
+ src/hotspot/share/interpreter/linkResolver.cpp    | 14 ++++++++++----
+ src/hotspot/share/interpreter/linkResolver.hpp    |  3 ++-
+ src/hotspot/share/oops/instanceKlass.cpp          | 15 ---------------
+ src/hotspot/share/oops/instanceKlass.hpp          |  1 -
+ .../share/prims/jvmtiEnhancedRedefineClasses.cpp  | 11 +++++++++--
+ 5 files changed, 21 insertions(+), 23 deletions(-)
+
+diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
+index 74a6af13ea4..78c9624a18b 100644
+--- a/src/hotspot/share/interpreter/linkResolver.cpp
++++ b/src/hotspot/share/interpreter/linkResolver.cpp
+@@ -131,14 +131,14 @@ void CallInfo::set_common(Klass* resolved_klass,
+ }
+ 
+ // utility query for unreflecting a method
+-CallInfo::CallInfo(Method* resolved_method, Klass* resolved_klass, TRAPS) {
++CallInfo::CallInfo(Method* resolved_method, Klass* resolved_klass, Thread* thread) {
+   Klass* resolved_method_holder = resolved_method->method_holder();
+   if (resolved_klass == NULL) { // 2nd argument defaults to holder of 1st
+     resolved_klass = resolved_method_holder;
+   }
+   _resolved_klass  = resolved_klass;
+-  _resolved_method = methodHandle(THREAD, resolved_method);
+-  _selected_method = methodHandle(THREAD, resolved_method);
++  _resolved_method = methodHandle(thread, resolved_method);
++  _selected_method = methodHandle(thread, resolved_method);
+   // classify:
+   CallKind kind = CallInfo::unknown_kind;
+   int index = resolved_method->vtable_index();
+@@ -179,7 +179,9 @@ CallInfo::CallInfo(Method* resolved_method, Klass* resolved_klass, TRAPS) {
+   _call_index = index;
+   _resolved_appendix = Handle();
+   // Find or create a ResolvedMethod instance for this Method*
+-  set_resolved_method_name(CHECK);
++  if (thread->is_Java_thread()) { // exclude DCEVM VM thread
++    set_resolved_method_name(thread->as_Java_thread());
++  }
+ 
+   DEBUG_ONLY(verify());
+ }
+@@ -190,6 +192,10 @@ void CallInfo::set_resolved_method_name(TRAPS) {
+   _resolved_method_name = Handle(THREAD, rmethod_name);
+ }
+ 
++void CallInfo::set_resolved_method_name_dcevm(oop rmethod_name, Thread* thread) {
++  _resolved_method_name = Handle(thread, rmethod_name);
++}
++
+ #ifdef ASSERT
+ void CallInfo::verify() {
+   switch (call_kind()) {  // the meaning and allowed value of index depends on kind
+diff --git a/src/hotspot/share/interpreter/linkResolver.hpp b/src/hotspot/share/interpreter/linkResolver.hpp
+index 9eeb10cc6fd..871eaab7464 100644
+--- a/src/hotspot/share/interpreter/linkResolver.hpp
++++ b/src/hotspot/share/interpreter/linkResolver.hpp
+@@ -91,7 +91,7 @@ class CallInfo : public StackObj {
+   // utility to extract an effective CallInfo from a method and an optional receiver limit
+   // does not queue the method for compilation.  This also creates a ResolvedMethodName
+   // object for the resolved_method.
+-  CallInfo(Method* resolved_method, Klass* resolved_klass, TRAPS);
++  CallInfo(Method* resolved_method, Klass* resolved_klass, Thread* thread);
+ 
+   Klass*  resolved_klass() const                 { return _resolved_klass; }
+   Method* resolved_method() const                { return _resolved_method(); }
+@@ -100,6 +100,7 @@ class CallInfo : public StackObj {
+   Handle       resolved_method_name() const      { return _resolved_method_name; }
+   // Materialize a java.lang.invoke.ResolvedMethodName for this resolved_method
+   void     set_resolved_method_name(TRAPS);
++  void     set_resolved_method_name_dcevm(oop rmethod_name, Thread* thread);
+ 
+   BasicType    result_type() const               { return selected_method()->result_type(); }
+   CallKind     call_kind() const                 { return _call_kind; }
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index c54b6b1bf46..8d259451032 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -1643,21 +1643,6 @@ 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 317a006a4ec..36587031fec 100644
+--- a/src/hotspot/share/oops/instanceKlass.hpp
++++ b/src/hotspot/share/oops/instanceKlass.hpp
+@@ -1017,7 +1017,6 @@ 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/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 0aeeea4e7a4..e7f26b7d08e 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -292,8 +292,15 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
+           // Note: we might set NULL at this point, which should force AbstractMethodError at runtime
+           Thread *thread = Thread::current();
+           CallInfo info(new_method, newest, thread);
+-          Handle objHandle(thread, obj);
+-          MethodHandles::init_method_MemberName(objHandle, info);
++          oop resolved_method = ResolvedMethodTable::find_method(info.resolved_method());
++          if (resolved_method != NULL) {
++            info.set_resolved_method_name_dcevm(resolved_method, thread);
++            Handle objHandle(thread, obj);
++            MethodHandles::init_method_MemberName(objHandle, info);
++          } else {
++            assert(0, "Must be resolved");
++            java_lang_invoke_MemberName::set_method(obj, NULL);
++          }
+         } else {
+           java_lang_invoke_MemberName::set_method(obj, NULL);
+         }
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0035-Fix-implicit-conversion-of-NULL-constant-to-bool.patch

@@ -0,0 +1,25 @@
+From 523ce6dd1559af84ebd6e4f10e7de9142f88d9d0 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Mon, 21 Jun 2021 20:44:17 +0200
+Subject: [PATCH 35/42] Fix "implicit conversion of NULL constant to 'bool'"
+
+---
+ src/hotspot/share/prims/jvmtiRedefineClasses.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
+index 87b3b5f47ce..6915a09cf85 100644
+--- a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
+@@ -1390,7 +1390,7 @@ jvmtiError VM_RedefineClasses::load_new_class_versions() {
+                                                       the_class->name(),
+                                                       the_class->class_loader_data(),
+                                                       cl_info,
+-                                                      NULL,
++                                                      false,
+                                                       THREAD);
+ 
+     // Clear class_being_redefined just to be sure.
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0036-Fix-pass-SystemDictionary-resolve_from_stream-cl_inf.patch

@@ -0,0 +1,35 @@
+From df4c29b24d41069168ee5647b2737348d9902090 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Wed, 30 Jun 2021 18:30:00 +0200
+Subject: [PATCH 36/42] Fix, pass SystemDictionary::resolve_from_stream cl_info
+ param
+
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index e7f26b7d08e..4d145f30100 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -920,10 +920,16 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+       }
+ 
+     } else {
++      ClassLoadInfo cl_info(protection_domain,
++                            NULL,     // dynamic_nest_host
++                            Handle(), // classData
++                            false,    // is_hidden
++                            !the_class->is_non_strong_hidden(),    // is_strong_hidden
++                            true);    // FIXME: check if correct. can_access_vm_annotations
+       k = SystemDictionary::resolve_from_stream(&st,
+                                                 the_class_sym,
+                                                 the_class_loader,
+-                                                protection_domain,
++                                                cl_info,
+                                                 the_class,
+                                                 THREAD);
+     }
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0037-Search-for-affected-classes-in-all-initialized-class.patch

@@ -0,0 +1,113 @@
+From 47ae71afaf12c7bab4f928579b154ec72aad3c02 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Wed, 30 Jun 2021 18:50:38 +0200
+Subject: [PATCH 37/42] Search for affected classes in all initialized classes
+ in cld
+
+Fix also case when lambda interface is redefined. Lambda class is
+missing in cld dictionary since it is hidden since j17
+---
+ src/hotspot/share/classfile/classLoaderData.cpp     | 10 ++++++++++
+ src/hotspot/share/classfile/classLoaderData.hpp     |  1 +
+ .../share/classfile/classLoaderDataGraph.cpp        | 11 ++++-------
+ .../share/classfile/classLoaderDataGraph.hpp        |  2 +-
+ .../share/prims/jvmtiEnhancedRedefineClasses.cpp    | 13 ++++---------
+ 5 files changed, 20 insertions(+), 17 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 65ce4c4af8c..1c51e83e86e 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
++++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -337,6 +337,16 @@ void ClassLoaderData::classes_do(KlassClosure* klass_closure) {
+   }
+ }
+ 
++void ClassLoaderData::initialized_classes_do(KlassClosure* klass_closure) {
++  // Lock-free access requires load_acquire
++  for (Klass* k = Atomic::load_acquire(&_klasses); k != NULL; k = k->next_link()) {
++    if (k->is_instance_klass() && InstanceKlass::cast(k)->is_initialized()) {
++      klass_closure->do_klass(k);
++    }
++    assert(k != k->next_link(), "no loops!");
++  }
++}
++
+ void ClassLoaderData::classes_do(void f(Klass * const)) {
+   // Lock-free access requires load_acquire
+   for (Klass* k = Atomic::load_acquire(&_klasses); k != NULL; k = k->next_link()) {
+diff --git a/src/hotspot/share/classfile/classLoaderData.hpp b/src/hotspot/share/classfile/classLoaderData.hpp
+index bda39f3e353..28fc9060e03 100644
+--- a/src/hotspot/share/classfile/classLoaderData.hpp
++++ b/src/hotspot/share/classfile/classLoaderData.hpp
+@@ -272,6 +272,7 @@ class ClassLoaderData : public CHeapObj<mtClass> {
+   void oops_do(OopClosure* f, int claim_value, bool clear_modified_oops = false);
+ 
+   void classes_do(KlassClosure* klass_closure);
++  void initialized_classes_do(KlassClosure* klass_closure);
+   Klass* klasses() { return _klasses; }
+ 
+   JNIMethodBlock* jmethod_ids() const              { return _jmethod_ids; }
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.cpp b/src/hotspot/share/classfile/classLoaderDataGraph.cpp
+index aa2a6bcec6b..f2394f72dbd 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.cpp
++++ b/src/hotspot/share/classfile/classLoaderDataGraph.cpp
+@@ -361,13 +361,10 @@ void ClassLoaderDataGraph::classes_do(KlassClosure* klass_closure) {
+   }
+ }
+ 
+-void ClassLoaderDataGraph::anonymous_or_hidden_classes_do(KlassClosure* klass_closure) {
+-  Thread* thread = Thread::current();
+-  for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
+-    if (cld->has_class_mirror_holder()) {
+-      Handle holder(thread, cld->holder_phantom());
+-      cld->classes_do(klass_closure);
+-    }
++void ClassLoaderDataGraph::initialized_classes_do(KlassClosure* klass_closure) {
++  ClassLoaderDataGraphIterator iter;
++  while (ClassLoaderData* cld = iter.get_next()) {
++    cld->initialized_classes_do(klass_closure);
+   }
+ }
+ 
+diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.hpp b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+index da712eaf55f..ff391ec74fc 100644
+--- a/src/hotspot/share/classfile/classLoaderDataGraph.hpp
++++ b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
+@@ -80,7 +80,7 @@ class ClassLoaderDataGraph : public AllStatic {
+   static void classes_do(KlassClosure* klass_closure);
+ 
+   // Enhanced class redefinition
+-  static void anonymous_or_hidden_classes_do(KlassClosure* klass_closure);
++  static void initialized_classes_do(KlassClosure* klass_closure);
+ 
+   static void classes_do(void f(Klass* const));
+   static void methods_do(void f(Method*));
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 4d145f30100..8615806ac98 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -2170,17 +2170,12 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
+   {
+     MutexLocker mcld(ClassLoaderDataGraph_lock);
+ 
+-    // 0. we can't use ClassLoaderDataGraph::classes_do since classes can be uninitialized in cld,
+-    // fully initialized class is in system dictionary
++    // We can't use ClassLoaderDataGraph::classes_do since classes can be uninitialized in cld,
++    // fully initialized class is in system dictionary, but hidden classes are excluded. Therefore
++    // we use special method iterating over initialized classes only
+     // ClassLoaderDataGraph::classes_do(&closure);
+ 
+-    // 1. Scan over dictionaries
+-    ClassLoaderDataGraph::dictionary_classes_do(&closure);
+-
+-    // 2. Anonymous or hidden class is not in dictionary, we have to iterate anonymous cld directly, but there is race cond...
+-    // TODO: review ... anonymous class is added to cld before InstanceKlass initialization,
+-    //                  find out how to check if the InstanceKlass is initialized
+-    ClassLoaderDataGraph::anonymous_or_hidden_classes_do(&closure);
++    ClassLoaderDataGraph::initialized_classes_do(&closure);
+   }
+ 
+   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0038-Fix-compilation-issue.patch

@@ -0,0 +1,27 @@
+From e9c3042e13c5fe58cac7409b1f93a4dc287cc14a Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Wed, 30 Jun 2021 18:58:47 +0200
+Subject: [PATCH 38/42] Fix compilation issue
+
+---
+ src/hotspot/share/interpreter/linkResolver.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
+index 78c9624a18b..28dccd0face 100644
+--- a/src/hotspot/share/interpreter/linkResolver.cpp
++++ b/src/hotspot/share/interpreter/linkResolver.cpp
+@@ -562,8 +562,8 @@ 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() &&
+-      ( !AllowEnhancedClassRedefinition && sel_klass == vmClasses::Object_klass() ||
+-      AllowEnhancedClassRedefinition && sel_klass->newest_version() == vmClasses::Object_klass()->newest_version()) &&
++      ( (!AllowEnhancedClassRedefinition && sel_klass == vmClasses::Object_klass()) ||
++        (AllowEnhancedClassRedefinition && sel_klass->newest_version() == vmClasses::Object_klass()->newest_version()) ) &&
+       resolved_klass->is_array_klass()) {
+     // We need to change "protected" to "public".
+     assert(flags.is_protected(), "clone not protected?");
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0039-Remove-duplicated-lambdaFormInvokers.cpp.patch

@@ -0,0 +1,171 @@
+From f303ef1fec703144efe6b9989a1a71fae0fb4263 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Tue, 27 Jul 2021 21:32:51 +0200
+Subject: [PATCH 39/42] Remove duplicated lambdaFormInvokers.cpp
+
+---
+ .../share/classfile/lambdaFormInvokers.cpp    | 152 ------------------
+ 1 file changed, 152 deletions(-)
+ delete mode 100644 src/hotspot/share/classfile/lambdaFormInvokers.cpp
+
+diff --git a/src/hotspot/share/classfile/lambdaFormInvokers.cpp b/src/hotspot/share/classfile/lambdaFormInvokers.cpp
+deleted file mode 100644
+index 281de58b482..00000000000
+--- a/src/hotspot/share/classfile/lambdaFormInvokers.cpp
++++ /dev/null
+@@ -1,152 +0,0 @@
+-/*
+- * 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.
+- *
+- * 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.
+- *
+- */
+-
+-#include "precompiled.hpp"
+-#include "classfile/classLoadInfo.hpp"
+-#include "classfile/classFileStream.hpp"
+-#include "classfile/javaClasses.inline.hpp"
+-#include "classfile/klassFactory.hpp"
+-#include "classfile/lambdaFormInvokers.hpp"
+-#include "classfile/symbolTable.hpp"
+-#include "classfile/systemDictionary.hpp"
+-#include "classfile/systemDictionaryShared.hpp"
+-#include "classfile/vmClasses.hpp"
+-#include "classfile/vmSymbols.hpp"
+-#include "logging/log.hpp"
+-#include "memory/oopFactory.hpp"
+-#include "memory/metaspaceShared.hpp"
+-#include "memory/resourceArea.hpp"
+-#include "oops/instanceKlass.hpp"
+-#include "oops/klass.hpp"
+-#include "oops/objArrayKlass.hpp"
+-#include "oops/objArrayOop.hpp"
+-#include "oops/oop.inline.hpp"
+-#include "oops/typeArrayOop.inline.hpp"
+-#include "runtime/handles.inline.hpp"
+-#include "runtime/javaCalls.hpp"
+-
+-GrowableArray<char*>* LambdaFormInvokers::_lambdaform_lines = NULL;
+-
+-void LambdaFormInvokers::append(char* line) {
+-  if (_lambdaform_lines == NULL) {
+-    _lambdaform_lines = new GrowableArray<char*>(100);
+-  }
+-  _lambdaform_lines->append(line);
+-}
+-
+-void LambdaFormInvokers::regenerate_holder_classes(TRAPS) {
+-  assert(_lambdaform_lines != NULL, "Bad List");
+-  ResourceMark rm(THREAD);
+-
+-  Symbol* cds_name  = vmSymbols::jdk_internal_misc_CDS();
+-  Klass*  cds_klass = SystemDictionary::resolve_or_null(cds_name, THREAD);
+-  guarantee(cds_klass != NULL, "jdk/internal/misc/CDS must exist!");
+-
+-  int len = _lambdaform_lines->length();
+-  objArrayHandle list_lines = oopFactory::new_objArray_handle(vmClasses::String_klass(), len, CHECK);
+-  for (int i = 0; i < len; i++) {
+-    Handle h_line = java_lang_String::create_from_str(_lambdaform_lines->at(i), CHECK);
+-    list_lines->obj_at_put(i, h_line());
+-  }
+-
+-  //
+-  // Object[] CDS.generateLambdaFormHolderClasses(String[] lines)
+-  // the returned Object[] layout:
+-  //   name, byte[], name, byte[] ....
+-  Symbol* method = vmSymbols::generateLambdaFormHolderClasses();
+-  Symbol* signrs = vmSymbols::generateLambdaFormHolderClasses_signature();
+-
+-  JavaValue result(T_OBJECT);
+-  JavaCalls::call_static(&result, cds_klass, method, signrs, list_lines, THREAD);
+-
+-  if (HAS_PENDING_EXCEPTION) {
+-    log_info(cds)("%s: %s", THREAD->pending_exception()->klass()->external_name(),
+-                            java_lang_String::as_utf8_string(java_lang_Throwable::message(THREAD->pending_exception())));
+-    CLEAR_PENDING_EXCEPTION;
+-    return;
+-  }
+-
+-  objArrayHandle h_array(THREAD, (objArrayOop)result.get_oop());
+-  int sz = h_array->length();
+-  assert(sz % 2 == 0 && sz >= 2, "Must be even size of length");
+-  for (int i = 0; i < sz; i+= 2) {
+-    Handle h_name(THREAD, h_array->obj_at(i));
+-    typeArrayHandle h_bytes(THREAD, (typeArrayOop)h_array->obj_at(i+1));
+-    assert(h_name != NULL, "Class name is NULL");
+-    assert(h_bytes != NULL, "Class bytes is NULL");
+-
+-    char *class_name = java_lang_String::as_utf8_string(h_name());
+-    int len = h_bytes->length();
+-    // make a copy of class bytes so GC will not affect us.
+-    char *buf = resource_allocate_bytes(THREAD, len);
+-    memcpy(buf, (char*)h_bytes->byte_at_addr(0), len);
+-    ClassFileStream st((u1*)buf, len, NULL, ClassFileStream::verify);
+-
+-    reload_class(class_name, st, THREAD);
+-    // free buf
+-    resource_free_bytes(buf, len);
+-
+-    if (HAS_PENDING_EXCEPTION) {
+-      log_info(cds)("Exception happened: %s", PENDING_EXCEPTION->klass()->name()->as_C_string());
+-      log_info(cds)("Could not create InstanceKlass for class %s", class_name);
+-      CLEAR_PENDING_EXCEPTION;
+-      return;
+-    }
+-  }
+-}
+-
+-// class_handle - the class name, bytes_handle - the class bytes
+-void LambdaFormInvokers::reload_class(char* name, ClassFileStream& st, TRAPS) {
+-  Symbol* class_name = SymbolTable::new_symbol((const char*)name);
+-  // the class must exist
+-  Klass* klass = SystemDictionary::resolve_or_null(class_name, THREAD);
+-  if (klass == NULL) {
+-    log_info(cds)("Class %s not present, skip", name);
+-    return;
+-  }
+-  assert(klass->is_instance_klass(), "Should be");
+-
+-  ClassLoaderData* cld = ClassLoaderData::the_null_class_loader_data();
+-  Handle protection_domain;
+-  ClassLoadInfo cl_info(protection_domain);
+-
+-  InstanceKlass* result = KlassFactory::create_from_stream(&st,
+-                                                   class_name,
+-                                                   cld,
+-                                                   cl_info,
+-                                                   false,
+-                                                   CHECK);
+-
+-  {
+-    MutexLocker mu_r(THREAD, Compile_lock); // add_to_hierarchy asserts this.
+-    SystemDictionary::add_to_hierarchy(result);
+-  }
+-  // new class not linked yet.
+-  MetaspaceShared::try_link_class(THREAD, result);
+-  assert(!HAS_PENDING_EXCEPTION, "Invariant");
+-
+-  // exclude the existing class from dump
+-  SystemDictionaryShared::set_excluded(InstanceKlass::cast(klass));
+-  log_info(cds, lambda)("Replaced class %s, old: %p  new: %p", name, klass, result);
+-}
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0040-JBR-3867-update-keys-of-jvmti-TAG-map-after-redefini.patch

@@ -0,0 +1,222 @@
+From 9cb4aaf17c8e35f39aed0dfa33e173b40968eee6 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Sun, 10 Oct 2021 20:25:30 +0200
+Subject: [PATCH 40/42] JBR-3867 - update keys of jvmti TAG map after
+ redefinition
+
+jdwp keeps relation class_ptr->class_ref in jvmti tag. class_ptr is used
+as a tag key, tag value is refnode. There are new class_ptrs after
+redefinition, therefore jdwp redefinition method update all affected
+keys in the tag map.
+---
+ src/hotspot/share/prims/jvmtiExtensions.cpp   | 24 ++++++++++++++
+ .../share/native/libjdwp/VirtualMachineImpl.c | 20 +++++++++++
+ .../share/native/libjdwp/commonRef.c          | 29 ++++++++++++++++
+ .../share/native/libjdwp/commonRef.h          |  2 ++
+ .../share/native/libjdwp/util.c               | 33 +++++++++++++++++++
+ .../share/native/libjdwp/util.h               |  3 ++
+ 6 files changed, 111 insertions(+)
+
+diff --git a/src/hotspot/share/prims/jvmtiExtensions.cpp b/src/hotspot/share/prims/jvmtiExtensions.cpp
+index a3fc430e1d1..ab2e663b95d 100644
+--- a/src/hotspot/share/prims/jvmtiExtensions.cpp
++++ b/src/hotspot/share/prims/jvmtiExtensions.cpp
+@@ -49,6 +49,15 @@ static jvmtiError JNICALL IsClassUnloadingEnabled(const jvmtiEnv* env, ...) {
+   return JVMTI_ERROR_NONE;
+ }
+ 
++// extension function
++static jvmtiError JNICALL IsEnhancedClassRedefinitionEnabled(const jvmtiEnv* env, jboolean* enabled, ...) {
++  if (enabled == NULL) {
++    return JVMTI_ERROR_NULL_POINTER;
++  }
++  *enabled = (jboolean)AllowEnhancedClassRedefinition;
++  return JVMTI_ERROR_NONE;
++}
++
+ // register extension functions and events. In this implementation we
+ // have a single extension function (to prove the API) that tests if class
+ // unloading is enabled or disabled. We also have a single extension event
+@@ -88,6 +97,21 @@ void JvmtiExtensions::register_extensions() {
+     event_params
+   };
+   _ext_events->append(&ext_event);
++
++  static jvmtiParamInfo func_params_enh_redef[] = {
++    { (char*)"IsEnhancedClassRedefinitionEnabled", JVMTI_KIND_OUT,  JVMTI_TYPE_JBOOLEAN, JNI_FALSE }
++
++  };
++  static jvmtiExtensionFunctionInfo ext_func_enh_redef = {
++    (jvmtiExtensionFunction)IsEnhancedClassRedefinitionEnabled,
++    (char*)"com.sun.hotspot.functions.IsEnhancedClassRedefinitionEnabled",
++    (char*)"Tell if enhanced class redefinition is enabled (-noclassgc)",
++    sizeof(func_params_enh_redef)/sizeof(func_params_enh_redef[0]),
++    func_params_enh_redef,
++    0,              // no non-universal errors
++    NULL
++  };
++  _ext_functions->append(&ext_func_enh_redef);
+ }
+ 
+ 
+diff --git a/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c b/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c
+index c07bdac2922..7e3070d7d1d 100644
+--- a/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c
++++ b/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c
+@@ -477,6 +477,14 @@ redefineClasses(PacketInputStream *in, PacketOutputStream *out)
+     if (ok == JNI_TRUE) {
+         jvmtiError error;
+ 
++        jlong classIds[classCount];
++
++        if (gdata->isEnhancedClassRedefinitionEnabled) {
++            for (i = 0; i < classCount; ++i) {
++              classIds[i] = commonRef_refToID(env, classDefs[i].klass);
++            }
++        }
++
+         error = JVMTI_FUNC_PTR(gdata->jvmti,RedefineClasses)
+                         (gdata->jvmti, classCount, classDefs);
+         if (error != JVMTI_ERROR_NONE) {
+@@ -486,6 +494,18 @@ redefineClasses(PacketInputStream *in, PacketOutputStream *out)
+             for ( i = 0 ; i < classCount; i++ ) {
+                 eventHandler_freeClassBreakpoints(classDefs[i].klass);
+             }
++
++            if (gdata->isEnhancedClassRedefinitionEnabled) {
++                /* Update tags in jvmti to use new classes */
++                for ( i = 0 ; i < classCount; i++ ) {
++                    /* pointer in classIds[i] is updated by advanced redefinition to a new class */
++                    error = commonRef_updateTags(env, classIds[i]);
++                    if (error != JVMTI_ERROR_NONE) {
++                        break;
++                    }
++                }
++            }
++
+         }
+     }
+ 
+diff --git a/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.c b/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.c
+index bc7ddb660bf..f8cb8e36f17 100644
+--- a/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.c
++++ b/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.c
+@@ -712,3 +712,32 @@ commonRef_unlock(void)
+ {
+     debugMonitorExit(gdata->refLock);
+ }
++
++/*
++ * Update JVMTI tags, used from enhanced redefinition
++ */
++jvmtiError
++commonRef_updateTags(JNIEnv *env, jlong id)
++{
++    jvmtiError error;
++
++    error = JVMTI_ERROR_NONE;
++
++    if (id == NULL_OBJECT_ID) {
++        return error;
++    }
++
++    debugMonitorEnter(gdata->refLock); {
++        RefNode *node;
++
++        node = findNodeByID(env, id);
++        if (node != NULL) {
++            error = JVMTI_FUNC_PTR(gdata->jvmti, SetTag)
++                                  (gdata->jvmti, node->ref, ptr_to_jlong(node));
++        } else {
++            printf("Node not found\n");
++        }
++    } debugMonitorExit(gdata->refLock);
++
++    return error;
++}
+diff --git a/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.h b/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.h
+index c3700f8c743..35c77e4adbf 100644
+--- a/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.h
++++ b/src/jdk.jdwp.agent/share/native/libjdwp/commonRef.h
+@@ -43,4 +43,6 @@ void commonRef_compact(void);
+ void commonRef_lock(void);
+ void commonRef_unlock(void);
+ 
++jvmtiError commonRef_updateTags(JNIEnv *env, jlong id);
++
+ #endif
+diff --git a/src/jdk.jdwp.agent/share/native/libjdwp/util.c b/src/jdk.jdwp.agent/share/native/libjdwp/util.c
+index 2403c5273ba..b4a5ad183e0 100644
+--- a/src/jdk.jdwp.agent/share/native/libjdwp/util.c
++++ b/src/jdk.jdwp.agent/share/native/libjdwp/util.c
+@@ -43,6 +43,7 @@ BackendGlobalData *gdata = NULL;
+ static jboolean isInterface(jclass clazz);
+ static jboolean isArrayClass(jclass clazz);
+ static char * getPropertyUTF8(JNIEnv *env, char *propertyName);
++static jboolean isEnhancedClassRedefinitionEnabled(JNIEnv *env);
+ 
+ /* Save an object reference for use later (create a NewGlobalRef) */
+ void
+@@ -285,6 +286,8 @@ util_initialize(JNIEnv *env)
+             }
+         }
+ 
++        gdata->isEnhancedClassRedefinitionEnabled = isEnhancedClassRedefinitionEnabled(env);
++
+     } END_WITH_LOCAL_REFS(env);
+ 
+ }
+@@ -1701,6 +1704,36 @@ getPropertyUTF8(JNIEnv *env, char *propertyName)
+     return value;
+ }
+ 
++static jboolean
++isEnhancedClassRedefinitionEnabled(JNIEnv *env)
++{
++    jvmtiError error;
++    jint count, i;
++    jvmtiExtensionFunctionInfo* ext_funcs;
++
++    error = JVMTI_FUNC_PTR(gdata->jvmti,GetExtensionFunctions)
++                (gdata->jvmti, &count, &ext_funcs);
++    if (error != JVMTI_ERROR_NONE) {
++        return JNI_FALSE;
++    }
++
++    for (i=0; i<count; i++) {
++        if (strcmp(ext_funcs[i].id, (char*)"com.sun.hotspot.functions.IsEnhancedClassRedefinitionEnabled") == 0) {
++            jboolean enabled;
++            error = (*ext_funcs[i].func)(gdata->jvmti, &enabled);
++
++            if (error != JVMTI_ERROR_NONE) {
++                return JNI_FALSE;
++            } else {
++                return enabled;
++            }
++        }
++    }
++
++    return JNI_FALSE;
++}
++
++
+ jboolean
+ isMethodObsolete(jmethodID method)
+ {
+diff --git a/src/jdk.jdwp.agent/share/native/libjdwp/util.h b/src/jdk.jdwp.agent/share/native/libjdwp/util.h
+index f62b5c409f0..6de8f17bb23 100644
+--- a/src/jdk.jdwp.agent/share/native/libjdwp/util.h
++++ b/src/jdk.jdwp.agent/share/native/libjdwp/util.h
+@@ -133,6 +133,9 @@ typedef struct {
+     int           objectsByIDsize;
+     int           objectsByIDcount;
+ 
++    /* true if enhanced class redefinition is enabled */
++    jboolean isEnhancedClassRedefinitionEnabled;
++
+      /* Indication that the agent has been loaded */
+      jboolean isLoaded;
+ 
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0041-JBR-3867-fix-msvc-compilation-issue-with-non-const-a.patch

@@ -0,0 +1,54 @@
+From db54a42adf258e2ba3459fe017221cf2cf49c33f Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Mon, 11 Oct 2021 20:22:26 +0200
+Subject: [PATCH 41/42] JBR-3867 - fix msvc compilation issue with non const
+ array on stack
+
+---
+ .../share/native/libjdwp/VirtualMachineImpl.c      | 14 ++++++++++----
+ 1 file changed, 10 insertions(+), 4 deletions(-)
+
+diff --git a/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c b/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c
+index 7e3070d7d1d..669fac7cb5b 100644
+--- a/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c
++++ b/src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c
+@@ -477,11 +477,16 @@ redefineClasses(PacketInputStream *in, PacketOutputStream *out)
+     if (ok == JNI_TRUE) {
+         jvmtiError error;
+ 
+-        jlong classIds[classCount];
++        jlong* classIds = NULL;
+ 
+         if (gdata->isEnhancedClassRedefinitionEnabled) {
+-            for (i = 0; i < classCount; ++i) {
+-              classIds[i] = commonRef_refToID(env, classDefs[i].klass);
++            classIds = jvmtiAllocate(classCount*(int)sizeof(jlong));
++            if (classIds == NULL) {
++                outStream_setError(out, JDWP_ERROR(OUT_OF_MEMORY));
++                return JNI_TRUE;
++            }
++            for (i = 0; i < classCount; i++) {
++                classIds[i] = commonRef_refToID(env, classDefs[i].klass);
+             }
+         }
+ 
+@@ -495,7 +500,7 @@ redefineClasses(PacketInputStream *in, PacketOutputStream *out)
+                 eventHandler_freeClassBreakpoints(classDefs[i].klass);
+             }
+ 
+-            if (gdata->isEnhancedClassRedefinitionEnabled) {
++            if (gdata->isEnhancedClassRedefinitionEnabled && classIds != NULL) {
+                 /* Update tags in jvmti to use new classes */
+                 for ( i = 0 ; i < classCount; i++ ) {
+                     /* pointer in classIds[i] is updated by advanced redefinition to a new class */
+@@ -504,6 +509,7 @@ redefineClasses(PacketInputStream *in, PacketOutputStream *out)
+                         break;
+                     }
+                 }
++                jvmtiDeallocate((void*) classIds);
+             }
+ 
+         }
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0042-Attempt-to-fix-JBR-3887.patch

@@ -0,0 +1,31 @@
+From 976b5f8b1326fee64febef8771d7cebee46bada9 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Tue, 19 Oct 2021 17:02:35 +0200
+Subject: [PATCH 42/42] Attempt to fix JBR-3887
+
+---
+ src/hotspot/share/prims/jvmtiExtensions.cpp | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiExtensions.cpp b/src/hotspot/share/prims/jvmtiExtensions.cpp
+index ab2e663b95d..698d32a7228 100644
+--- a/src/hotspot/share/prims/jvmtiExtensions.cpp
++++ b/src/hotspot/share/prims/jvmtiExtensions.cpp
+@@ -50,7 +50,13 @@ static jvmtiError JNICALL IsClassUnloadingEnabled(const jvmtiEnv* env, ...) {
+ }
+ 
+ // extension function
+-static jvmtiError JNICALL IsEnhancedClassRedefinitionEnabled(const jvmtiEnv* env, jboolean* enabled, ...) {
++static jvmtiError JNICALL IsEnhancedClassRedefinitionEnabled(const jvmtiEnv* env, ...) {
++  jboolean* enabled = NULL;
++  va_list ap;
++
++  va_start(ap, env);
++  enabled = va_arg(ap, jboolean *);
++  va_end(ap);
+   if (enabled == NULL) {
+     return JVMTI_ERROR_NULL_POINTER;
+   }
+-- 
+2.23.0
+

jb/project/tools/test/check_jbr_size.sh

@@ -1,152 +0,0 @@
-#!/bin/bash
-
-
-while getopts ":t" o; do
-    case "${o}" in
-        t)
-          t="With Teamcity tests info"
-          TC_PRINT=1
-          ;;
-    esac
-done
-shift $((OPTIND-1))
-
-NEWFILEPATH=$1
-CONFIGID=$2
-BUILDID=$3
-TOKEN=$4
-#
-# Get the size of new artifact
-#
-
-unameOut="$(uname -s)"
-case "${unameOut}" in
-    Linux*)
-      NEWFILESIZE=$(stat -c%s "$NEWFILEPATH")
-      ;;
-    Darwin*)
-      NEWFILESIZE=$(stat -f%z "$NEWFILEPATH")
-      ;;
-    CYGWIN*)
-      NEWFILESIZE=$(stat -c%s$4
-#
-# Get the size of new artifact
-#
- "$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, 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]}
-fi
-
-if [ $TC_PRINT -eq 1 ]; then
-  testname_file_ext=`echo $FILE_EXTENSION | sed 's/\./_/g'`
-  testname=$BUNDLE_TYPE"_"$OS_ARCH_PATTERN$testname_file_ext
-  echo \#\#teamcity[testStarted name=\'$testname\']
-fi
-
-
-echo "BUNDLE_TYPE: "  $BUNDLE_TYPE
-echo "OS_ARCH_PATTERN: " $OS_ARCH_PATTERN
-echo "FILE_EXTENSION: " $FILE_EXTENSION
-echo "New size of $FILENAME = $NEWFILESIZE bytes."
-
-
-function test_failed_msg() {
-  if [ $3 -eq 1 ]; then
-    echo \#\#teamcity[testFailed name=\'$1\' message=\'$2\']
-  fi
-}
-
-function test_finished_msg() {
-  if [ $2 -eq 1 ]; then
-    echo \#\#teamcity[testFinished name=\'$1\']
-  fi
-}
-
-#
-# Get previous successful build ID
-# Example:
-# CONFIGID=IntellijCustomJdk_Jdk17_Master_LinuxX64jcef
-# BUILDID=12345678
-#
-# expected return value
-# id="123".number="567"
-#
-CURL_RESPONSE=$(curl --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 "BUILD Number: ${BASH_REMATCH[2]}"
-else
-  msg="ERROR: can't find previous build"
-  echo $msg
-  echo $CURL_RESPONSE
-  test_failed_msg $testname $msg $TC_PRINT
-  test_finished_msg $testname $TC_PRINT
-  exit 1
-fi
-
-#
-# Get artifacts from previous successful build
-#
-# expected return value
-# name="jbrsdk_jcef*.tar.gz size="123'
-#
-CURL_RESPONSE=$(curl --header "Authorization: Bearer $TOKEN" "https://buildserver.labs.intellij.net/app/rest/builds/$ID?fields=id,number,artifacts(file(name,size))")
-echo "Atrifacts of previous build of $CONFIGID :"
-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 =~ $re ]]; then
-  OLDFILENAME=${BASH_REMATCH[1]}
-  echo "Prev artifact name: $OLDFILENAME"
-  OLDFILESIZE=${BASH_REMATCH[2]}
-  echo "Prev artifact size = $OLDFILESIZE"
-
-  let allowedSize=OLDFILESIZE+OLDFILESIZE/20 # use 5% threshold
-  echo "Allowed size = $allowedSize"
-  if [[ "$NEWFILESIZE" -gt "$allowedSize" ]]; then
-    msg="ERROR: new size is significally greater than prev size (need to investigate)"
-    echo $msg
-    test_failed_msg $testname $msg $TC_PRINT
-    test_finished_msg $testname $TC_PRINT
-    exit 1
-  else
-    echo "PASSED"
-   test_finished_msg $testname $TC_PRINT
-  fi
-else
-  msg="ERROR: can't find string with size in xml response:"
-  echo $msg
-  echo $CURL_RESPONSE
-  test_failed_msg $testname $msg $TC_PRINT
-  test_finished_msg $testname $TC_PRINT
-  exit 1
-fi

jb/project/tools/test/perfcmp.sh

@@ -49,7 +49,7 @@ echo $refFile
 echo $resFile
 
 curValues=`cat "$curFile" | cut -f 2 | tr -d '\t'`
-if [ -z $noHeaders ]; then
+if [ -z noHeaders ]; then
   curValuesHeader=`echo "$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`
@@ -58,7 +58,7 @@ else
 fi
 
 testContent=`echo "$testContent" | 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 $noHeaders ]; then
+if [ -z noHeaders ]; then
   echo "$header" > $resFile
 fi
 echo "$testContent" >> $resFile

jb/project/tools/windows/scripts/mkimages_x64.sh

@@ -1,27 +1,46 @@
 #!/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
 
-source jb/project/tools/common/scripts/common.sh
+while getopts ":i?" o; do
+    case "${o}" in
+        i)
+            i="incremental build"
+            INC_BUILD=1
+            ;;
+    esac
+done
+shift $((OPTIND-1))
 
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+bundle_type=$4
+JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
 WORK_DIR=$(pwd)
 JCEF_PATH=${JCEF_PATH:=$WORK_DIR/jcef_win_x64}
 
+source jb/project/tools/common/scripts/common.sh
+
 function do_configure {
   sh ./configure \
     $WITH_DEBUG_LEVEL \
@@ -34,9 +53,7 @@ function do_configure {
     --with-toolchain-version=$TOOLCHAIN_VERSION \
     --with-boot-jdk=$BOOT_JDK \
     --disable-ccache \
-    --enable-cds=yes \
-    $REPRODUCIBLE_BUILD_OPTS \
-    || do_exit $?
+    --enable-cds=yes || do_exit $?
 }
 
 function create_image_bundle {
@@ -56,7 +73,6 @@ function create_image_bundle {
   if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
     sed 's/JBR/JBRSDK/g' $__arch_name/release > release
     mv release $__arch_name/release
-    cp $IMAGES_DIR/jdk/lib/src.zip $__arch_name/lib
     copy_jmods "$__modules" "$__modules_path" "$__arch_name"/jmods
   fi
 }
@@ -67,7 +83,12 @@ 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=""
@@ -81,13 +102,13 @@ esac
 
 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 $?
@@ -99,7 +120,7 @@ JSDK=$IMAGES_DIR/jdk
 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} # $JSDK/jmods is not unchanged
@@ -107,16 +128,15 @@ if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
   jbr_name_postfix="_${bundle_type}"
 fi
 
-# create runtime image bundlef
-modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
-modules+=",jdk.crypto.mscapi"
+# create runtime image bundle
+modules=$(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

jb/project/tools/windows/scripts/mkimages_x86.sh

@@ -53,8 +53,7 @@ mv release ${JBRSDK_BUNDLE}/release
 
 JBR_BUNDLE=jbr
 rm -rf ${JBR_BUNDLE}
-grep -v javafx jb/project/tools/common/modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
-echo ",jdk.crypto.mscapi" >> modules.list.x86
+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 $?

jb/project/tools/windows/scripts/pack_x64.sh

@@ -1,19 +1,29 @@
 #!/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=$1
@@ -41,7 +51,7 @@ fi
 pack_jbr jbr${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 $?

make/CreateJmods.gmk

@@ -221,26 +221,6 @@ else
   JMOD_FLAGS += --exclude '**{_the.*,_*.marker*,*.diz,*.debuginfo,*.dSYM/**,*.dSYM}'
 endif
 
-# For reproducible builds specify the jmod --date using SOURCE_DATE in ISO-8601
-ifeq ($(ENABLE_REPRODUCIBLE_BUILD), true)
-  JMOD_SOURCE_DATE := --date $(SOURCE_DATE_ISO_8601)
-else
-  JMOD_SOURCE_DATE :=
-endif
-
-ifeq ($(ENABLE_REPRODUCIBLE_BUILD), 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 := $(FIXPATH) $(JDK_OUTPUTDIR)/bin/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
-
 # 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), \
@@ -252,7 +232,6 @@ $(eval $(call SetupExecute, create_$(JMOD_FILE), \
     COMMAND := $(JMOD) create --module-version $(VERSION_SHORT) \
         --target-platform '$(OPENJDK_MODULE_TARGET_PLATFORM)' \
         --module-path $(JMODS_DIR) $(JMOD_FLAGS) \
-        $(JMOD_SOURCE_DATE) \
         $(JMODS_SUPPORT_DIR)/$(JMOD_FILE), \
     POST_COMMAND := $(MV) $(JMODS_SUPPORT_DIR)/$(JMOD_FILE) $(JMODS_DIR)/$(JMOD_FILE), \
 ))

make/GenerateLinkOptData.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 2020, 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
@@ -88,10 +88,7 @@ $(CLASSLIST_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXECUTABLE_SUFFIX) $(CLASSLIST
 	        $(CAT) $(LINK_OPT_DIR)/stderr $(JLI_TRACE_FILE) ; \
 	        exit $$exitcode \
 	    )
-	$(GREP) -v HelloClasslist $@.raw.2 > $@.raw.3
-	$(FIXPATH) $(INTERIM_IMAGE_DIR)/bin/java \
-	    -cp $(SUPPORT_OUTPUTDIR)/classlist.jar \
-	    build.tools.classlist.SortClasslist $@.raw.3 > $@
+	$(GREP) -v HelloClasslist $@.raw.2 > $@
 
 # The jli trace is created by the same recipe as classlist. By declaring these
 # dependencies, make will correctly rebuild both jli trace and classlist

make/InitSupport.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2019, 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
@@ -313,15 +313,6 @@ else # $(HAS_SPEC)=true
       SOURCE_DATE := $$(shell $$(DATE) +"%s")
     endif
     export SOURCE_DATE_EPOCH := $$(SOURCE_DATE)
-    ifeq ($$(IS_GNU_DATE), yes)
-      export SOURCE_DATE_ISO_8601 := $$(shell $$(DATE) --utc \
-                                                       --date="@$$(SOURCE_DATE_EPOCH)" \
-                                                       +"%Y-%m-%dT%H:%M:%SZ" 2> /dev/null)
-    else
-      export SOURCE_DATE_ISO_8601 := $$(shell $$(DATE) -u \
-                                                       -j -f "%s" "$$(SOURCE_DATE_EPOCH)" \
-                                                       +"%Y-%m-%dT%H:%M:%SZ" 2> /dev/null)
-    endif
   endef
 
   # Parse COMPARE_BUILD into COMPARE_BUILD_*

make/JBRApi.gmk

@@ -18,19 +18,18 @@ include $(SPEC)
 include MakeBase.gmk
 include JavaCompilation.gmk
 
-JBR_API_ROOT_DIR   := $(TOPDIR)/src/jetbrains.api
-JBR_API_TOOLS_DIR  := $(JBR_API_ROOT_DIR)/tools
-JBR_API_SRC_DIR    := $(JBR_API_ROOT_DIR)/src
+JBR_API_ROOT_DIR := $(TOPDIR)/src/jetbrains.api
+JBR_API_GENSRC_TEMPLATES := $(JBR_API_ROOT_DIR)/templates
+JBR_API_SRC_DIR          := $(JBR_API_ROOT_DIR)/src
 JBR_API_OUTPUT_DIR := $(OUTPUTDIR)/jbr-api
 JBR_API_GENSRC_DIR := $(JBR_API_OUTPUT_DIR)/gensrc
 JBR_API_BIN_DIR    := $(JBR_API_OUTPUT_DIR)/bin
 JBR_API_VERSION_PROPERTIES := $(JBR_API_ROOT_DIR)/version.properties
-JBR_API_VERSION_GENSRC     := $(JBR_API_OUTPUT_DIR)/jbr-api.version
-JBR_API_GENSRC_BATCH       := $(JBR_API_VERSION_GENSRC)
 
+JBR_API_GENSRC_SOURCES := $(call FindFiles, $(JBR_API_GENSRC_TEMPLATES))
+JBR_API_GENSRC_FILES := $(foreach f, $(call FindFiles, $(JBR_API_GENSRC_TEMPLATES)/com), \
+    $(JBR_API_GENSRC_DIR)/$(call RelativePath, $f, $(JBR_API_GENSRC_TEMPLATES)))
 JBR_API_SRC_FILES := $(call FindFiles, $(JBR_API_SRC_DIR))
-JBR_API_GENSRC_FILES := $(foreach f, $(call FindFiles, $(JBR_API_SRC_DIR)), \
-    $(JBR_API_GENSRC_DIR)/$(call RelativePath, $f, $(JBR_API_SRC_DIR)))
 
 ifeq ($(JBR_API_JBR_VERSION),)
   JBR_API_JBR_VERSION := <DEVELOPMENT>
@@ -44,30 +43,27 @@ ARCHIVE_BUILD_JBR_API_BIN := $(JBR_API_BIN_DIR)
 $(eval $(call SetupJavaCompilation, BUILD_JBR_API, \
     SMALL_JAVA := true, \
     COMPILER := bootjdk, \
-    SRC := $(JBR_API_GENSRC_DIR), \
+    SRC := $(JBR_API_GENSRC_DIR) $(JBR_API_SRC_DIR), \
     EXTRA_FILES := $(JBR_API_GENSRC_FILES), \
     BIN := $(JBR_API_BIN_DIR), \
     JAR := $(JBR_API_OUTPUT_DIR)/jbr-api.jar, \
 ))
 
 $(eval $(call SetupJarArchive, BUILD_JBR_API_SOURCES_JAR, \
-    DEPENDENCIES := $(JBR_API_GENSRC_FILES), \
-    SRCS := $(JBR_API_GENSRC_DIR), \
+    DEPENDENCIES := $(JBR_API_GENSRC_FILES) $(JBR_API_SRC_FILES), \
+    SRCS := $(JBR_API_GENSRC_DIR) $(JBR_API_SRC_DIR), \
     JAR := $(JBR_API_OUTPUT_DIR)/jbr-api-sources.jar, \
     SUFFIXES := .java, \
     BIN := $(JBR_API_BIN_DIR), \
 ))
 
-# Grouped targets may not be supported, so hack dependencies: sources -> version file -> generated sources
-$(JBR_API_VERSION_GENSRC): $(JBR_API_SRC_FILES) $(JBR_API_VERSION_PROPERTIES) $(JBR_API_TOOLS_DIR)/Gensrc.java
+$(JBR_API_GENSRC_FILES): $(JBR_API_GENSRC_SOURCES) $(JBR_API_SRC_FILES) $(JBR_API_VERSION_PROPERTIES)
 	$(ECHO) Generating sources for JBR API
-	$(JAVA_CMD) $(JAVA_FLAGS_SMALL) "$(JBR_API_TOOLS_DIR)/Gensrc.java" \
+	$(JAVA_CMD) $(JAVA_FLAGS_SMALL) "$(JBR_API_GENSRC_TEMPLATES)/Gensrc.java" \
 	    "$(TOPDIR)/src" "$(JBR_API_OUTPUT_DIR)" "$(JBR_API_JBR_VERSION)"
-$(JBR_API_GENSRC_FILES): $(JBR_API_VERSION_GENSRC)
-	$(TOUCH) $@
 
-jbr-api-check-version: $(JBR_API_GENSRC_FILES) $(JBR_API_VERSION_PROPERTIES)
-	$(JAVA_CMD) $(JAVA_FLAGS_SMALL) "$(JBR_API_TOOLS_DIR)/CheckVersion.java" \
+jbr-api-check-version: $(JBR_API_GENSRC_FILES) $(JBR_API_SRC_FILES) $(JBR_API_VERSION_PROPERTIES)
+	$(JAVA_CMD) $(JAVA_FLAGS_SMALL) "$(JBR_API_GENSRC_TEMPLATES)/CheckVersion.java" \
 	    "$(JBR_API_ROOT_DIR)" "$(JBR_API_GENSRC_DIR)" "$(JBR_API_FAIL_ON_HASH_MISMATCH)"
 
 jbr-api: $(BUILD_JBR_API) $(BUILD_JBR_API_SOURCES_JAR) jbr-api-check-version
@@ -76,7 +72,7 @@ jbr-api: $(BUILD_JBR_API) $(BUILD_JBR_API_SOURCES_JAR) jbr-api-check-version
 
 ifneq ($(JBR_API_CONF_FILE),)
   $(JBR_API_CONF_FILE): $(JBR_API_GENSRC_FILES)
-	$(ECHO) "VERSION=`$(CAT) $(JBR_API_VERSION_GENSRC)`" > $(JBR_API_CONF_FILE)
+	$(ECHO) "VERSION=`$(CAT) $(JBR_API_OUTPUT_DIR)/jbr-api.version`" > $(JBR_API_CONF_FILE)
 	$(ECHO) "JAR=$(JBR_API_OUTPUT_DIR)/jbr-api.jar" >> $(JBR_API_CONF_FILE)
 	$(ECHO) "SOURCES_JAR=$(JBR_API_OUTPUT_DIR)/jbr-api-sources.jar" >> $(JBR_API_CONF_FILE)
   jbr-api: $(JBR_API_CONF_FILE)

make/Main.gmk

@@ -324,7 +324,7 @@ $(eval $(call SetupTarget, vscode-project-ccls, \
 # aren't built until after libjava and libjvm are available to link to.
 $(eval $(call SetupTarget, demos-jdk, \
     MAKEFILE := CompileDemos, \
-    DEPS := java.base-libs exploded-image buildtools-jdk, \
+    DEPS := java.base-libs exploded-image, \
 ))
 
 $(eval $(call SetupTarget, test-image-demos-jdk, \
@@ -383,12 +383,12 @@ bootcycle-images:
 
 $(eval $(call SetupTarget, zip-security, \
     MAKEFILE := ZipSecurity, \
-    DEPS := buildtools-jdk java.base-java java.security.jgss-java java.security.jgss-libs, \
+    DEPS := java.base-java java.security.jgss-java java.security.jgss-libs, \
 ))
 
 $(eval $(call SetupTarget, zip-source, \
     MAKEFILE := ZipSource, \
-    DEPS := buildtools-jdk gensrc, \
+    DEPS := gensrc, \
 ))
 
 $(eval $(call SetupTarget, jrtfs-jar, \
@@ -508,13 +508,13 @@ $(eval $(call SetupTarget, docs-jdk-index, \
 $(eval $(call SetupTarget, docs-zip, \
     MAKEFILE := Docs, \
     TARGET := docs-zip, \
-    DEPS :=  docs-jdk buildtools-jdk, \
+    DEPS :=  docs-jdk, \
 ))
 
 $(eval $(call SetupTarget, docs-specs-zip, \
     MAKEFILE := Docs, \
     TARGET := docs-specs-zip, \
-    DEPS := docs-jdk-specs buildtools-jdk, \
+    DEPS := docs-jdk-specs, \
 ))
 
 $(eval $(call SetupTarget, update-build-docs, \

make/RunTests.gmk

@@ -200,7 +200,7 @@ $(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 MAX_OUTPUT, \
     STRING_KEYWORDS := OPTIONS JAVA_OPTIONS VM_OPTIONS KEYWORDS \
         EXTRA_PROBLEM_LISTS LAUNCHER_OPTIONS, \
 ))
@@ -744,15 +744,6 @@ define SetupRunJtregTestBody
   JTREG_RETAIN ?= fail,error
   JTREG_RUN_PROBLEM_LISTS ?= false
   JTREG_RETRY_COUNT ?= 0
-  JTREG_REPEAT_COUNT ?= 0
-
-  ifneq ($$(JTREG_RETRY_COUNT), 0)
-    ifneq ($$(JTREG_REPEAT_COUNT), 0)
-      $$(info Error: Cannot use both JTREG_RETRY_COUNT and JTREG_REPEAT_COUNT together.)
-      $$(info Please choose one or the other.)
-      $$(error Cannot continue)
-    endif
-  endif
 
   ifneq ($$(JTREG_LAUNCHER_OPTIONS), )
     $1_JTREG_LAUNCHER_OPTIONS += $$(JTREG_LAUNCHER_OPTIONS)
@@ -884,18 +875,6 @@ define SetupRunJtregTestBody
         done
   endif
 
-  ifneq ($$(JTREG_REPEAT_COUNT), 0)
-    $1_COMMAND_LINE := \
-        for i in {1..$$(JTREG_REPEAT_COUNT)}; do \
-          $$(PRINTF) "\nRepeating Jtreg run: $$$$i out of $$(JTREG_REPEAT_COUNT)\n"; \
-          $$($1_COMMAND_LINE); \
-          if [ "`$$(CAT) $$($1_EXITCODE)`" != "0" ]; then \
-            $$(PRINTF) "\nFailures detected, no more repeats.\n"; \
-            break; \
-          fi; \
-        done
-  endif
-
   run-test-$1: pre-run-test clean-workdir-$1
 	$$(call LogWarn)
 	$$(call LogWarn, Running test '$$($1_TEST)')

make/ToolsJdk.gmk

@@ -80,8 +80,6 @@ TOOL_GENERATECACERTS = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_class
 TOOL_GENERATEEMOJIDATA = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
     build.tools.generateemojidata.GenerateEmojiData
 
-TOOL_MAKEZIPREPRODUCIBLE = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
-    build.tools.makezipreproducible.MakeZipReproducible
 
 # TODO: There are references to the jdwpgen.jar in jdk/make/netbeans/jdwpgen/build.xml
 # and nbproject/project.properties in the same dir. Needs to be looked at.

make/autoconf/basic.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2020, 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
@@ -94,6 +94,11 @@ AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
 
   # Locate the directory of this script.
   AUTOCONF_DIR=$TOPDIR/make/autoconf
+
+  # Setup username (for use in adhoc version strings etc)
+  # Outer [ ] to quote m4.
+  [ USERNAME=`$ECHO "$USER" | $TR -d -c '[a-z][A-Z][0-9]'` ]
+  AC_SUBST(USERNAME)
 ])
 
 ###############################################################################

make/autoconf/basic_tools.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2020, 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
@@ -356,18 +356,6 @@ AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
   fi
   AC_SUBST(IS_GNU_TIME)
 
-  # Check if it's a GNU date compatible version
-  AC_MSG_CHECKING([if date is a GNU compatible version])
-  check_date=`$DATE --version 2>&1 | $GREP "GNU\|BusyBox"`
-  if test "x$check_date" != x; then
-    AC_MSG_RESULT([yes])
-    IS_GNU_DATE=yes
-  else
-    AC_MSG_RESULT([no])
-    IS_GNU_DATE=no
-  fi
-  AC_SUBST(IS_GNU_DATE)
-
   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
     UTIL_REQUIRE_PROGS(DSYMUTIL, dsymutil)
     UTIL_REQUIRE_PROGS(MIG, mig)

make/autoconf/boot-jdk.m4

@@ -357,16 +357,6 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK],
 
   # Finally, set some other options...
 
-  # Determine if the boot jdk jar supports the --date option
-  if $JAR --help 2>&1 | $GREP -q "\-\-date=TIMESTAMP"; then
-    BOOT_JDK_JAR_SUPPORTS_DATE=true
-  else
-    BOOT_JDK_JAR_SUPPORTS_DATE=false
-  fi
-  AC_MSG_CHECKING([if Boot JDK jar supports --date=TIMESTAMP])
-  AC_MSG_RESULT([$BOOT_JDK_JAR_SUPPORTS_DATE])
-  AC_SUBST(BOOT_JDK_JAR_SUPPORTS_DATE)
-
   # When compiling code to be executed by the Boot JDK, force compatibility with the
   # oldest supported bootjdk.
   OLDEST_BOOT_JDK=`$ECHO $DEFAULT_ACCEPTABLE_BOOT_VERSIONS \

make/autoconf/build-aux/config.guess

@@ -102,15 +102,6 @@ if [ "x$OUT" = x ]; then
   fi
 fi
 
-# Test and fix LoongArch64.
-if [ "x$OUT" = x ]; then
-  if [ `uname -s` = Linux ]; then
-    if [ `uname -m` = loongarch64 ]; then
-      OUT=loongarch64-unknown-linux-gnu
-    fi
-  fi
-fi
-
 # Test and fix cpu on macos-aarch64, uname -p reports arm, buildsys expects aarch64
 echo $OUT | grep arm-apple-darwin > /dev/null 2> /dev/null
 if test $? != 0; then

make/autoconf/flags-cflags.m4

@@ -95,24 +95,8 @@ 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
@@ -124,11 +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 $DEBUG_PREFIX_CFLAGS"
-  fi
-
   AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
   AC_SUBST(ASFLAGS_DEBUG_SYMBOLS)
 ])
@@ -803,8 +782,10 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
         test "x$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,

make/autoconf/help.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2020, 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
@@ -42,21 +42,21 @@ AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
     PKGHANDLER_COMMAND=
 
     case $PKGHANDLER in
-      *apt-get)
+      apt-get)
         apt_help     $MISSING_DEPENDENCY ;;
-      *yum)
+      yum)
         yum_help     $MISSING_DEPENDENCY ;;
-      *brew)
+      brew)
         brew_help    $MISSING_DEPENDENCY ;;
-      *port)
+      port)
         port_help    $MISSING_DEPENDENCY ;;
-      *pkgutil)
+      pkgutil)
         pkgutil_help $MISSING_DEPENDENCY ;;
-      *pkgadd)
+      pkgadd)
         pkgadd_help  $MISSING_DEPENDENCY ;;
-      *zypper)
+      zypper)
         zypper_help  $MISSING_DEPENDENCY ;;
-      *pacman)
+      pacman)
         pacman_help  $MISSING_DEPENDENCY ;;
     esac
 

make/autoconf/jdk-options.m4

@@ -169,23 +169,6 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_OPTIONS],
   fi
   AC_SUBST(CACERTS_FILE)
 
-  # Choose cacerts source folder for user provided PEM files
-  AC_ARG_WITH(cacerts-src, [AS_HELP_STRING([--with-cacerts-src],
-      [specify alternative cacerts source folder containing certificates])])
-  CACERTS_SRC=""
-  AC_MSG_CHECKING([for cacerts source])
-  if test "x$with_cacerts_src" == x; then
-    AC_MSG_RESULT([default])
-  else
-    CACERTS_SRC=$with_cacerts_src
-    if test ! -d "$CACERTS_SRC"; then
-      AC_MSG_RESULT([fail])
-      AC_MSG_ERROR([Specified cacerts source folder "$CACERTS_SRC" does not exist])
-    fi
-    AC_MSG_RESULT([$CACERTS_SRC])
-  fi
-  AC_SUBST(CACERTS_SRC)
-
   # Enable or disable unlimited crypto
   UTIL_ARG_ENABLE(NAME: unlimited-crypto, DEFAULT: true, RESULT: UNLIMITED_CRYPTO,
       DESC: [enable unlimited crypto policy])
@@ -216,12 +199,6 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_OPTIONS],
     AC_MSG_ERROR([Copyright year must have a value])
   elif test "x$with_copyright_year" != x; then
     COPYRIGHT_YEAR="$with_copyright_year"
-  elif test "x$SOURCE_DATE_EPOCH" != x; then
-    if test "x$IS_GNU_DATE" = xyes; then
-      COPYRIGHT_YEAR=`date --date=@$SOURCE_DATE_EPOCH +%Y`
-    else
-      COPYRIGHT_YEAR=`date -j -f %s $SOURCE_DATE_EPOCH +%Y`
-    fi
   else
     COPYRIGHT_YEAR=`$DATE +'%Y'`
   fi
@@ -758,7 +735,7 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_REPRODUCIBLE_BUILD],
   if test "x$OPENJDK_BUILD_OS" = xwindows && \
       test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = xfalse && \
       test "x$ENABLE_REPRODUCIBLE_BUILD" = xfalse; then
-    AC_MSG_NOTICE([On Windows it is not possible to combine  --disable-reproducible-build])
+    AC_MSG_NOTICE([On Windows it is not possible to combine  --disable-reproducible-builds])
     AC_MSG_NOTICE([with --disable-absolute-paths-in-output.])
     AC_MSG_ERROR([Cannot continue])
   fi

make/autoconf/jdk-version.m4

@@ -69,17 +69,6 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
   AC_SUBST(JDK_RC_PLATFORM_NAME)
   AC_SUBST(HOTSPOT_VM_DISTRO)
 
-  # Setup username (for use in adhoc version strings etc)
-  AC_ARG_WITH([build-user], [AS_HELP_STRING([--with-build-user],
-      [build username to use in version strings])])
-  if test "x$with_build_user" != x; then
-    USERNAME="$with_build_user"
-  else
-    # Outer [ ] to quote m4.
-    [ USERNAME=`$ECHO "$USER" | $TR -d -c '[a-z][A-Z][0-9]'` ]
-  fi
-  AC_SUBST(USERNAME)
-
   # Set the JDK RC name
   AC_ARG_WITH(jdk-rc-name, [AS_HELP_STRING([--with-jdk-rc-name],
       [Set JDK RC name. This is used for FileDescription and ProductName properties

make/autoconf/jvm-features.m4

@@ -307,8 +307,7 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_SHENANDOAHGC],
   JVM_FEATURES_CHECK_AVAILABILITY(shenandoahgc, [
     AC_MSG_CHECKING([if platform is supported by Shenandoah])
     if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86" || \
-        test "x$OPENJDK_TARGET_CPU" = "xaarch64" || \
-        test "x$OPENJDK_TARGET_CPU" = "xppc64le"; then
+        test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
       AC_MSG_RESULT([yes])
     else
       AC_MSG_RESULT([no, $OPENJDK_TARGET_CPU])
@@ -358,13 +357,6 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_ZGC],
         AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
         AVAILABLE=false
       fi
-    elif test "x$OPENJDK_TARGET_CPU" = "xppc64le"; then
-      if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
-        AC_MSG_RESULT([yes])
-      else
-        AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
-        AVAILABLE=false
-      fi
     else
       AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
       AVAILABLE=false

make/autoconf/platform.m4

@@ -72,12 +72,6 @@ AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_CPU],
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=little
       ;;
-    loongarch64)
-      VAR_CPU=loongarch64
-      VAR_CPU_ARCH=loongarch
-      VAR_CPU_BITS=64
-      VAR_CPU_ENDIAN=little
-      ;;
     m68k)
       VAR_CPU=m68k
       VAR_CPU_ARCH=m68k

make/autoconf/spec.gmk.in

@@ -364,9 +364,6 @@ BUILD_JDK:=@BUILD_JDK@
 CREATE_BUILDJDK:=@CREATE_BUILDJDK@
 EXTERNAL_BUILDJDK:=@EXTERNAL_BUILDJDK@
 
-# Whether the boot jdk jar supports --date=TIMESTAMP
-BOOT_JDK_JAR_SUPPORTS_DATE:=@BOOT_JDK_JAR_SUPPORTS_DATE@
-
 # When compiling Java source to be run by the boot jdk
 # use these extra flags, eg -source 6 -target 6
 BOOT_JDK_SOURCETARGET:=@BOOT_JDK_SOURCETARGET@
@@ -412,8 +409,6 @@ GTEST_FRAMEWORK_SRC := @GTEST_FRAMEWORK_SRC@
 
 # Source file for cacerts
 CACERTS_FILE=@CACERTS_FILE@
-# Source folder for user provided cacerts PEM files 
-CACERTS_SRC=@CACERTS_SRC@
 
 # Enable unlimited crypto policy
 UNLIMITED_CRYPTO=@UNLIMITED_CRYPTO@
@@ -712,7 +707,6 @@ CODESIGN:=@CODESIGN@
 CP:=@CP@
 CUT:=@CUT@
 DATE:=@DATE@
-IS_GNU_DATE:=@IS_GNU_DATE@
 DIFF:=@DIFF@
 DIRNAME:=@DIRNAME@
 DSYMUTIL:=@DSYMUTIL@

make/autoconf/toolchain.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, 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
@@ -221,12 +221,6 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
   AC_ARG_WITH(toolchain-type, [AS_HELP_STRING([--with-toolchain-type],
       [the toolchain type (or family) to use, use '--help' to show possible values @<:@platform dependent@:>@])])
 
-  # Linux x86_64 needs higher binutils after 8265783
-  # (this really is a dependency on as version, but we take ld as a check for a general binutils version)
-  if test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
-    TOOLCHAIN_MINIMUM_LD_VERSION_gcc="2.25"
-  fi
-
   # Use indirect variable referencing
   toolchain_var_name=VALID_TOOLCHAINS_$OPENJDK_BUILD_OS
   VALID_TOOLCHAINS=${!toolchain_var_name}
@@ -234,7 +228,7 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     if test -n "$XCODEBUILD"; then
       # On Mac OS X, default toolchain to clang after Xcode 5
-      XCODE_VERSION_OUTPUT=`"$XCODEBUILD" -version | $HEAD -n 1`
+      XCODE_VERSION_OUTPUT=`"$XCODEBUILD" -version 2>&1 | $HEAD -n 1`
       $ECHO "$XCODE_VERSION_OUTPUT" | $GREP "Xcode " > /dev/null
       if test $? -ne 0; then
         AC_MSG_NOTICE([xcodebuild output: $XCODE_VERSION_OUTPUT])
@@ -683,10 +677,9 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
   TOOLCHAIN_PREPARE_FOR_LD_VERSION_COMPARISONS
 
   if test "x$TOOLCHAIN_MINIMUM_LD_VERSION" != x; then
-    AC_MSG_NOTICE([comparing linker version to minimum version $TOOLCHAIN_MINIMUM_LD_VERSION])
     TOOLCHAIN_CHECK_LINKER_VERSION(VERSION: $TOOLCHAIN_MINIMUM_LD_VERSION,
         IF_OLDER_THAN: [
-          AC_MSG_ERROR([You are using a linker older than $TOOLCHAIN_MINIMUM_LD_VERSION. This is not a supported configuration.])
+          AC_MSG_WARN([You are using a linker older than $TOOLCHAIN_MINIMUM_LD_VERSION. This is not a supported configuration.])
         ]
     )
   fi

make/autoconf/toolchain_microsoft.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2020, 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
@@ -25,7 +25,7 @@
 
 ################################################################################
 # The order of these defines the priority by which we try to find them.
-VALID_VS_VERSIONS="2019 2017 2022"
+VALID_VS_VERSIONS="2019 2017"
 
 VS_DESCRIPTION_2017="Microsoft Visual Studio 2017"
 VS_VERSION_INTERNAL_2017=141
@@ -56,21 +56,6 @@ VS_SDK_PLATFORM_NAME_2019=
 VS_SUPPORTED_2019=true
 VS_TOOLSET_SUPPORTED_2019=true
 
-VS_DESCRIPTION_2022="Microsoft Visual Studio 2022"
-VS_VERSION_INTERNAL_2022=143
-VS_MSVCR_2022=vcruntime140.dll
-VS_VCRUNTIME_1_2022=vcruntime140_1.dll
-VS_MSVCP_2022=msvcp140.dll
-VS_ENVVAR_2022="VS170COMNTOOLS"
-VS_USE_UCRT_2022="true"
-VS_VS_INSTALLDIR_2022="Microsoft Visual Studio/2022"
-VS_EDITIONS_2022="BuildTools Community Professional Enterprise"
-VS_SDK_INSTALLDIR_2022=
-VS_VS_PLATFORM_NAME_2022="v143"
-VS_SDK_PLATFORM_NAME_2022=
-VS_SUPPORTED_2022=true
-VS_TOOLSET_SUPPORTED_2022=true
-
 ################################################################################
 
 AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT],

make/autoconf/util.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2020, 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
@@ -230,25 +230,20 @@ AC_DEFUN([UTIL_GET_MATCHING_VALUES],
 # Converts an ISO-8601 date/time string to a unix epoch timestamp. If no
 # suitable conversion method was found, an empty string is returned.
 #
+# Sets the specified variable to the resulting list.
+#
 # $1: result variable name
 # $2: input date/time string
 AC_DEFUN([UTIL_GET_EPOCH_TIMESTAMP],
 [
-  if test "x$IS_GNU_DATE" = xyes; then
-    # GNU date
-    timestamp=$($DATE --utc --date=$2 +"%s" 2> /dev/null)
-  else
-    # BSD date
-    # ISO-8601 date&time in Zulu 'date'T'time'Z
-    timestamp=$($DATE -u -j -f "%FT%TZ" "$2" "+%s" 2> /dev/null)
+  timestamp=$($DATE --utc --date=$2 +"%s" 2> /dev/null)
+  if test "x$timestamp" = x; then
+    # GNU date format did not work, try BSD date options
+    timestamp=$($DATE -j -f "%F %T" "$2" "+%s" 2> /dev/null)
     if test "x$timestamp" = x; then
-      # BSD date cannot handle trailing milliseconds.
-      # Try again ignoring characters at end
-      timestamp=$($DATE -u -j -f "%Y-%m-%dT%H:%M:%S" "$2" "+%s" 2> /dev/null)
-    fi
-    if test "x$timestamp" = x; then
-      # Perhaps the time was missing.
-      timestamp=$($DATE -u -j -f "%FT%TZ" "$2""T00:00:00Z" "+%s" 2> /dev/null)
+      # Perhaps the time was missing
+      timestamp=$($DATE -j -f "%F %T" "$2 00:00:00" "+%s" 2> /dev/null)
+      # If this did not work, we give up and return the empty string
     fi
   fi
   $1=$timestamp

make/common/JarArchive.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2019, 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
@@ -193,8 +193,7 @@ define SetupJarArchiveBody
   $1_UPDATE_CONTENTS=\
       if [ "`$(WC) -l $$($1_BIN)/_the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'`" -gt "0" ]; then \
         $(ECHO) "  updating" `$(WC) -l $$($1_BIN)/_the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'` files && \
-        $(SORT) $$($1_BIN)/_the.$$($1_JARNAME)_contents > $$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted && \
-        $$($1_JAR_CMD) --update $$($1_JAR_OPTIONS) --file $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted; \
+        $$($1_JAR_CMD) $$($1_JAR_UPDATE_OPTIONS) $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents; \
       fi $$(NEWLINE)
   # The s-variants of the above macros are used when the jar is created from scratch.
   # NOTICE: please leave the parentheses space separated otherwise the AIX build will break!
@@ -213,29 +212,25 @@ define SetupJarArchiveBody
             | $(SED) 's|$$(src)/|-C $$(src) |g' >> \
         $$($1_BIN)/_the.$$($1_JARNAME)_contents) $$(NEWLINE) )
   endif
-  $1_SUPDATE_CONTENTS=\
-      $(SORT) $$($1_BIN)/_the.$$($1_JARNAME)_contents > $$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted && \
-      $$($1_JAR_CMD) --update $$($1_JAR_OPTIONS) --file $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted $$(NEWLINE)
+  $1_SUPDATE_CONTENTS=$$($1_JAR_CMD) $$($1_JAR_UPDATE_OPTIONS) $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents $$(NEWLINE)
 
   # Use a slightly shorter name for logging, but with enough path to identify this jar.
   $1_NAME:=$$(subst $$(OUTPUTDIR)/,,$$($1_JAR))
 
-  # If reproducible build and the boot jdk jar supports --date option
-  # then specify the --date using SOURCE_DATE in ISO-8601
-  $1_JAR_OPTIONS :=
-  ifeq ($$(ENABLE_REPRODUCIBLE_BUILD), true)
-    ifeq ($$(BOOT_JDK_JAR_SUPPORTS_DATE), true)
-      $1_JAR_OPTIONS += --date $(SOURCE_DATE_ISO_8601)
-    endif
-  endif
   ifneq (,$$($1_CHECK_COMPRESS_JAR))
-    ifneq ($(COMPRESS_JARS), true)
-      $1_JAR_OPTIONS += --no-compress
+    $1_JAR_CREATE_OPTIONS := c0fm
+    $1_JAR_UPDATE_OPTIONS := u0f
+    ifeq ($(COMPRESS_JARS), true)
+      $1_JAR_CREATE_OPTIONS := cfm
+      $1_JAR_UPDATE_OPTIONS := uf
     endif
+  else
+    $1_JAR_CREATE_OPTIONS := cfm
+    $1_JAR_UPDATE_OPTIONS := uf
   endif
 
   # Include all variables of significance in the vardeps file
-  $1_VARDEPS := $$($1_JAR_CMD) $$($1_JAR_OPTIONS) $$($1_MANIFEST) \
+  $1_VARDEPS := $$($1_JAR_CMD) $$($1_JAR_CREATE_OPTIONS) $$($1_MANIFEST) \
       $$($1_JARMAIN) $$($1_EXTRA_MANIFEST_ATTR) $$($1_ORIG_DEPS) $$($1_SRCS) \
       $$($1_INCLUDES) $$($1_EXCLUDES) $$($1_EXCLUDE_FILES) $$($1_EXTRA_FILES)
   $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, $$($1_BIN)/_the.$$($1_JARNAME).vardeps)
@@ -260,7 +255,7 @@ define SetupJarArchiveBody
 	  $$(if $$($1_EXTRA_MANIFEST_ATTR), \
 	    $(PRINTF) "$$($1_EXTRA_MANIFEST_ATTR)\n" >> $$($1_MANIFEST_FILE) $$(NEWLINE)) \
 	  $(ECHO) Creating $$($1_NAME) $$(NEWLINE) \
-	  $$($1_JAR_CMD) --create $$($1_JAR_OPTIONS) --file $$@ --manifest $$($1_MANIFEST_FILE) $$(NEWLINE) \
+	  $$($1_JAR_CMD) $$($1_JAR_CREATE_OPTIONS) $$@ $$($1_MANIFEST_FILE) $$(NEWLINE) \
 	  $$($1_SCAPTURE_CONTENTS) \
 	  $$($1_SCAPTURE_METAINF) \
 	  $$($1_SUPDATE_CONTENTS) \

make/common/NativeCompilation.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, 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
@@ -358,20 +358,6 @@ define SetupCompileNativeFileBody
       # Compile as preprocessed assembler file
       $1_FLAGS := $(BASIC_ASFLAGS) $$($1_BASE_ASFLAGS)
       $1_COMPILER := $(AS)
-
-      # gcc assembly files must contain an appropriate relative .file
-      # path for reproducible builds.
-      ifeq ($(TOOLCHAIN_TYPE), gcc)
-        # If no absolute paths allowed, work out relative source file path
-        # for assembly .file substitution, otherwise use full file path
-        ifeq ($(ALLOW_ABSOLUTE_PATHS_IN_OUTPUT), false)
-          $1_REL_ASM_SRC := $$(call RelativePath, $$($1_FILE), $(WORKSPACE_ROOT))
-        else
-          $1_REL_ASM_SRC := $$($1_FILE)
-        endif
-        $1_FLAGS := $$($1_FLAGS) -DASSEMBLY_SRC_FILE='"$$($1_REL_ASM_SRC)"' \
-            -include $(TOPDIR)/make/data/autoheaders/assemblyprefix.h
-      endif
     else ifneq ($$(filter %.cpp %.cc %.mm, $$($1_FILENAME)), )
       # Compile as a C++ or Objective-C++ file
       $1_FLAGS := $(CFLAGS_CCACHE) $$($1_USE_PCH_FLAGS) $$($1_BASE_CXXFLAGS) \
@@ -403,12 +389,6 @@ define SetupCompileNativeFileBody
     $1_OBJ_DEPS := $$($1_SRC_FILE) $$($$($1_BASE)_COMPILE_VARDEPS_FILE) \
         $$($$($1_BASE)_EXTRA_DEPS) $$($1_VARDEPS_FILE)
     $1_COMPILE_OPTIONS := $$($1_FLAGS) $(CC_OUT_OPTION)$$($1_OBJ) $$($1_SRC_FILE)
-    # For reproducible builds with gcc ensure random symbol generation is seeded deterministically
-    ifeq ($(TOOLCHAIN_TYPE), gcc)
-       ifeq ($$(ENABLE_REPRODUCIBLE_BUILD), true)
-         $1_COMPILE_OPTIONS += -frandom-seed="$$($1_FILENAME)"
-       endif
-    endif
 
     $$($1_OBJ_JSON): $$($1_OBJ_DEPS)
 	$$(call WriteCompileCommandsFragment, $$@, $$(PWD), $$($1_SRC_FILE), \

make/common/ZipArchive.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2019, 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
@@ -26,9 +26,6 @@
 ifndef _ZIP_ARCHIVE_GMK
 _ZIP_ARCHIVE_GMK := 1
 
-# Depends on build tools for MakeZipReproducible
-include ../ToolsJdk.gmk
-
 ifeq (,$(_MAKEBASE_GMK))
   $(error You must include MakeBase.gmk prior to including ZipArchive.gmk)
 endif
@@ -54,8 +51,6 @@ endif
 #   FOLLOW_SYMLINKS - Set to explicitly follow symlinks. Affects performance of
 #                     finding files.
 #   ZIP_OPTIONS extra options to pass to zip
-#   REPRODUCIBLE override ENABLE_REPRODUCIBLE_BUILD (to make zip reproducible or not)
-
 SetupZipArchive = $(NamedParamsMacroTemplate)
 define SetupZipArchiveBody
 
@@ -129,10 +124,6 @@ define SetupZipArchiveBody
     ) \
   )
 
-  ifeq ($$($1_REPRODUCIBLE), )
-    $1_REPRODUCIBLE := $$(ENABLE_REPRODUCIBLE_BUILD)
-  endif
-
   # Use a slightly shorter name for logging, but with enough path to identify this zip.
   $1_NAME:=$$(subst $$(OUTPUTDIR)/,,$$($1_ZIP))
 
@@ -143,8 +134,6 @@ define SetupZipArchiveBody
   # dir is very small.
   # If zip has nothing to do, it returns 12 and would fail the build. Check for 12
   # and only fail if it's not.
-  # For reproducible builds set the zip access & modify times to SOURCE_DATE_EPOCH
-  # by using a ziptmp folder to generate final zip from using MakeZipReproducible.
   $$($1_ZIP) : $$($1_ALL_SRCS) $$($1_EXTRA_DEPS)
 	$$(call LogWarn, Updating $$($1_NAME))
 	$$(call MakeTargetDir)
@@ -174,18 +163,7 @@ define SetupZipArchiveBody
 	        $$($1_ZIP_EXCLUDES_$$s) \
 	        || test "$$$$?" = "12" \
 	    ))$$(NEWLINE) \
-	) true
-        ifeq ($$($1_REPRODUCIBLE), true)
-	    $$(call ExecuteWithLog, \
-		$$(SUPPORT_OUTPUTDIR)/makezipreproducible/$$(patsubst $$(OUTPUTDIR)/%,%, $$@), \
-		($(RM) $$(SUPPORT_OUTPUTDIR)/ziptmp/$1/tmp.zip && \
-		 $(MKDIR) -p $$(SUPPORT_OUTPUTDIR)/ziptmp/$1 && \
-		 $(TOOL_MAKEZIPREPRODUCIBLE) -f $$(SUPPORT_OUTPUTDIR)/ziptmp/$1/tmp.zip \
-			 		     -t $(SOURCE_DATE_EPOCH) $$@ && \
-		 $(RM) $$@ && \
-		 $(MV) $$(SUPPORT_OUTPUTDIR)/ziptmp/$1/tmp.zip $$@ \
-		))
-        endif
+	) true \
 	$(TOUCH) $$@
 
   # Add zip to target list

make/conf/javadoc.conf

@@ -1,4 +1,4 @@
-# Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2020, 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
@@ -23,9 +23,9 @@
 #
 
 # URLs
-JAVADOC_BASE_URL=https://docs.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_FEATURE)&id=homepage
+JAVADOC_BASE_URL=https://docs.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_NUMBER)&id=homepage
 BUG_SUBMIT_URL=https://bugreport.java.com/bugreport/
 COPYRIGHT_URL=legal/copyright.html
-LICENSE_URL=https://www.oracle.com/java/javase/terms/license/java$(VERSION_FEATURE)speclicense.html
+LICENSE_URL=https://www.oracle.com/java/javase/terms/license/java$(VERSION_NUMBER)speclicense.html
 REDISTRIBUTION_URL=https://www.oracle.com/technetwork/java/redist-137594.html
 OTHER_JDK_VERSIONS_URL=https://docs.oracle.com/en/java/javase/index.html

make/conf/jib-profiles.js

@@ -249,7 +249,7 @@ var getJibProfilesCommon = function (input, data) {
         dependencies: ["boot_jdk", "gnumake", "jtreg", "jib", "autoconf", "jmh", "jcov"],
         default_make_targets: ["product-bundles", "test-bundles", "static-libs-bundles"],
         configure_args: concat("--enable-jtreg-failure-handler",
-            "--with-exclude-translations=es,fr,it,ko,pt_BR,sv,ca,tr,cs,sk,ja_JP_A,ja_JP_HA,ja_JP_HI,ja_JP_I,zh_TW,zh_HK",
+            "--with-exclude-translations=de,es,fr,it,ko,pt_BR,sv,ca,tr,cs,sk,ja_JP_A,ja_JP_HA,ja_JP_HI,ja_JP_I,zh_TW,zh_HK",
             "--disable-manpages",
             "--disable-jvm-feature-shenandoahgc",
             versionArgs(input, common))

make/conf/test-dependencies

@@ -30,14 +30,14 @@ JTREG_VERSION=6
 JTREG_BUILD=1
 GTEST_VERSION=1.8.1
 
-LINUX_X64_BOOT_JDK_FILENAME=openjdk-17.0.1_linux-x64_bin.tar.gz
-LINUX_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk17.0.1/2a2082e5a09d4267845be086888add4f/12/GPL/openjdk-17.0.1_linux-x64_bin.tar.gz
-LINUX_X64_BOOT_JDK_SHA256=1c0a73cbb863aad579b967316bf17673b8f98a9bb938602a140ba2e5c38f880a
+LINUX_X64_BOOT_JDK_FILENAME=openjdk-16_linux-x64_bin.tar.gz
+LINUX_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_linux-x64_bin.tar.gz
+LINUX_X64_BOOT_JDK_SHA256=e952958f16797ad7dc7cd8b724edd69ec7e0e0434537d80d6b5165193e33b931
 
-WINDOWS_X64_BOOT_JDK_FILENAME=openjdk-17.0.1_windows-x64_bin.zip
-WINDOWS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk17.0.1/2a2082e5a09d4267845be086888add4f/12/GPL/openjdk-17.0.1_windows-x64_bin.zip
-WINDOWS_X64_BOOT_JDK_SHA256=329900a6673b237b502bdcf77bc334da34bc91355c5fd2d457fc00f53fd71ef1
+WINDOWS_X64_BOOT_JDK_FILENAME=openjdk-16_windows-x64_bin.zip
+WINDOWS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_windows-x64_bin.zip
+WINDOWS_X64_BOOT_JDK_SHA256=a78bdeaad186297601edac6772d931224d7af6f682a43372e693c37020bd37d6
 
-MACOS_X64_BOOT_JDK_FILENAME=openjdk-17.0.1_macos-x64_bin.tar.gz
-MACOS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk17.0.1/2a2082e5a09d4267845be086888add4f/12/GPL/openjdk-17.0.1_macos-x64_bin.tar.gz
-MACOS_X64_BOOT_JDK_SHA256=6ccb35800e723cabe15af60e67099d1a07c111d2d3208aa75523614dde68bee1
+MACOS_X64_BOOT_JDK_FILENAME=openjdk-16_osx-x64_bin.tar.gz
+MACOS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_osx-x64_bin.tar.gz
+MACOS_X64_BOOT_JDK_SHA256=16f3e39a31e86f3f51b0b4035a37494a47ed3c4ead760eafc6afd7afdf2ad9f2

make/conf/version-numbers.conf

@@ -28,12 +28,12 @@
 
 DEFAULT_VERSION_FEATURE=17
 DEFAULT_VERSION_INTERIM=0
-DEFAULT_VERSION_UPDATE=3
+DEFAULT_VERSION_UPDATE=1
 DEFAULT_VERSION_PATCH=0
 DEFAULT_VERSION_EXTRA1=0
 DEFAULT_VERSION_EXTRA2=0
 DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2022-04-19
+DEFAULT_VERSION_DATE=2021-10-19
 DEFAULT_VERSION_CLASSFILE_MAJOR=61  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
 DEFAULT_VERSION_CLASSFILE_MINOR=0
 DEFAULT_VERSION_DOCS_API_SINCE=11

make/data/autoheaders/assemblyprefix.h

@@ -1,29 +0,0 @@
-#
-# Copyright (c) 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
-#
-# 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.
-#
-
-// ASSEMBLY_SRC_FILE gets replaced by relative or absolute file path
-// in NativeCompilation.gmk for gcc tooling on Linux. This ensures a
-// reproducible object file through a predictable value of the STT_FILE
-// symbol, and subsequently a reproducible .debuginfo.
-.file ASSEMBLY_SRC_FILE
-

make/data/cacerts/globalsignr2ca

@@ -0,0 +1,29 @@
+Owner: CN=GlobalSign, O=GlobalSign, OU=GlobalSign Root CA - R2
+Issuer: CN=GlobalSign, O=GlobalSign, OU=GlobalSign Root CA - R2
+Serial number: 400000000010f8626e60d
+Valid from: Fri Dec 15 08:00:00 GMT 2006 until: Wed Dec 15 08:00:00 GMT 2021
+Signature algorithm name: SHA1withRSA
+Subject Public Key Algorithm: 2048-bit RSA key
+Version: 3
+-----BEGIN CERTIFICATE-----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==
+-----END CERTIFICATE-----