8238812: assert(false) failed: bad AD file

Reviewed-by: thartmann, chagedorn, roland

.github/workflows/submit.yml

@@ -536,10 +536,6 @@ jobs:
           echo "cross_flags=
           --openjdk-target=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-flavor}}
           --with-sysroot=${HOME}/sysroot-${{ matrix.debian-arch }}/
-          --with-toolchain-path=${HOME}/sysroot-${{ matrix.debian-arch }}/
-          --with-freetype-lib=${HOME}/sysroot-${{ matrix.debian-arch }}/usr/lib/${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-flavor}}/
-          --with-freetype-include=${HOME}/sysroot-${{ matrix.debian-arch }}/usr/include/freetype2/
-          --x-libraries=${HOME}/sysroot-${{ matrix.debian-arch }}/usr/lib/${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-flavor}}/
           " >> $GITHUB_ENV
         if: matrix.debian-arch != ''
 

jb/project/docker/Dockerfile

@@ -1,13 +0,0 @@
-# jetbrains/runtime:jbr15env
-FROM centos:7
-RUN yum -y install centos-release-scl
-RUN yum -y install devtoolset-8
-RUN yum -y install zip bzip2 unzip tar wget make autoconf automake libtool gcc gcc-c++ libstdc++-devel alsa-devel cups-devel xorg-x11-devel libjpeg62-devel giflib-devel freetype-devel file which libXtst-devel libXt-devel libXrender-devel alsa-lib-devel fontconfig-devel libXrandr-devel libXi-devel git
-# Install Java 15
-RUN wget  https://cdn.azul.com/zulu/bin/zulu15.27.17-ca-jdk15.0.0-linux_x64.tar.gz \
--O - | tar xz -C /
-RUN mv /zulu15.27.17-ca-jdk15.0.0-linux_x64 /jdk15.0.0
-ENV PATH /opt/rh/devtoolset-8/root/usr/bin:$PATH
-RUN mkdir .git
-RUN git config user.email "builduser@jetbrains.com"
-RUN git config user.name "builduser"

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

@@ -1,54 +0,0 @@
-VENDOR_NAME="JetBrains s.r.o."
-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
-
-function do_exit() {
-  exit_code=$1
-  [ $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 $HEAD_REVISION
-  fi
-  exit "$exit_code"
-}
-
-function update_jsdk_mods() {
-  __jsdk=$1
-  __jcef_mods=$2
-  __orig_jsdk_mods=$3
-  __updated_jsdk_mods=$4
-  
-  # re-create java.desktop.jmod with updated module-info.class
-  tmp=.java.desktop.$$.tmp
-  mkdir "$tmp" || exit $?
-  "$__jsdk"/bin/jmod extract --dir "$tmp" "$__orig_jsdk_mods"/java.desktop.jmod || exit $?
-  "$__jsdk"/bin/javac \
-      --patch-module java.desktop="$__orig_jsdk_mods"/java.desktop.jmod \
-      --module-path "$__jcef_mods" -d "$tmp"/classes src/java.desktop/share/classes/module-info.java || exit $?
-  "$__jsdk"/bin/jmod \
-      create --class-path "$tmp"/classes --config "$tmp"/conf --header-files "$tmp"/include --legal-notice "$tmp"/legal --libs "$tmp"/lib \
-      java.desktop.jmod || exit $?
-  mv java.desktop.jmod "$__updated_jsdk_mods" || exit $?
-  rm -rf "$tmp"
-  
-  # re-create java.base.jmod with updated hashes
-  tmp=.java.base.$$.tmp
-  mkdir "$tmp" || exit $?
-  hash_modules=$("$JSDK"/bin/jmod describe "$__orig_jsdk_mods"/java.base.jmod | grep hashes | awk '{print $2}' | tr '\n' '|' | sed s/\|$//) || exit $?
-  "$__jsdk"/bin/jmod extract --dir "$tmp" "$__orig_jsdk_mods"/java.base.jmod || exit $?
-  rm "$__updated_jsdk_mods"/java.base.jmod || exit $? # temp exclude from path
-  "$__jsdk"/bin/jmod \
-      create --module-path "$__updated_jsdk_mods" --hash-modules "$hash_modules" \
-      --class-path "$tmp"/classes --cmds "$tmp"/bin --config "$tmp"/conf --header-files "$tmp"/include --legal-notice "$tmp"/legal --libs "$tmp"/lib \
-      java.base.jmod || exit $?
-  mv java.base.jmod "$__updated_jsdk_mods" || exit $?
-  rm -rf "$tmp"
-}
-
-function get_mods_list() {
-  __mods=$1
-  echo $(ls $__mods) | sed s/\.jmod/,/g | sed s/,$//g | sed s/' '//g
-}

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

@@ -1,84 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
-#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
-#   build_number     - specifies the number of JetBrainsRuntime build
-#
-# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-#
-# $ ./java --version
-# openjdk 11.0.6 2020-01-14
-# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
-# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
-#
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-
-JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
-
-source jb/project/tools/common/scripts/common.sh
-
-JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
-
-[ -z "$bundle_type" ] && (git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch || exit $?)
-
-sh configure \
-  --disable-warnings-as-errors \
-  --with-debug-level=release \
-  --with-vendor-name="${VENDOR_NAME}" \
-  --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
-  --with-version-pre= \
-  --with-version-build=${JDK_BUILD_NUMBER} \
-  --with-version-opt=b${build_number} \
-  --with-boot-jdk=${BOOT_JDK} \
-  --enable-cds=yes || exit $?
-make clean CONF=linux-aarch64-server-release || exit $?
-make images CONF=linux-aarch64-server-release test-image || exit $?
-
-JBSDK=${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
-
-rm -rf $BASE_DIR/$JBRSDK_BUNDLE
-cp -r $JSDK $BASE_DIR/$JBRSDK_BUNDLE || exit $?
-
-echo Creating $JBSDK.tar.gz ...
-sed 's/JBR/JBRSDK/g' ${BASE_DIR}/${JBRSDK_BUNDLE}/release > release
-mv release ${BASE_DIR}/${JBRSDK_BUNDLE}/release
-
-tar -pcf $JBSDK.tar \
-  --exclude=*.debuginfo --exclude=demo --exclude=sample --exclude=man \
-  -C $BASE_DIR ${JBRSDK_BUNDLE} || exit $?
-gzip $JBSDK.tar || exit $?
-
-JBR_BUNDLE=jbr
-JBR_BASE_NAME=jbr-$JBSDK_VERSION
-rm -rf $BASE_DIR/$JBR_BUNDLE
-
-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 $?
-
-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

@@ -1,137 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   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
-#
-# 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:
-#   JCEF_PATH - specifies the path to the directory with JCEF binaries.
-#               By default JCEF binaries should be located in ./jcef_linux_x64
-
-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 create_image_bundle {
-  __bundle_name=$1
-  __arch_name=$2
-  __modules_path=$3
-  __modules=$4
-
-  [ "$bundle_type" == "fd" ] && fastdebug_infix="fastdebug-"
-  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"
-  $JSDK/bin/jlink \
-    --module-path "$__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 [ "$__bundle_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__arch_name"/release > release
-    mv release "$IMAGES_DIR"/"$__arch_name"/release
-  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 "$JBR".tar.gz ...
-  tar -pcf "$JBR".tar -C "$IMAGES_DIR" "$__arch_name" || do_exit $?
-  [ -f "$JBR".tar.gz ] && rm "$JBR.tar.gz"
-  gzip "$JBR".tar || do_exit $?
-  rm -rf "${IMAGES_DIR:?}"/"$__arch_name"
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=linux-x86_64-server-release
-
-case "$bundle_type" in
-  "jcef")
-    do_reset_changes=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=""
-    ;;
-  "fd")
-    do_reset_changes=1
-    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
-    RELEASE_NAME=linux-x86_64-server-fastdebug
-    ;;
-esac
-
-sh configure \
-  --disable-warnings-as-errors \
-  $WITH_DEBUG_LEVEL \
-  --with-vendor-name="$VENDOR_NAME" \
-  --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-  --with-version-pre= \
-  --with-version-build="$JDK_BUILD_NUMBER" \
-  --with-version-opt=b"$build_number" \
-  --with-boot-jdk="$BOOT_JDK" \
-  --enable-cds=yes || do_exit $?
-
-make clean CONF=$RELEASE_NAME || exit $?
-make images CONF=$RELEASE_NAME || do_exit $?
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk
-JSDK_MODS_DIR=$IMAGES_DIR/jmods
-JBRSDK_BUNDLE=jbrsdk
-
-echo Fixing permissions
-chmod -R a+r $JSDK
-
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
-  git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
-  update_jsdk_mods $JSDK $JCEF_PATH/jmods $JSDK/jmods $JSDK_MODS_DIR || do_exit $?
-  cp $JCEF_PATH/jmods/* $JSDK_MODS_DIR # $JSDK/jmods is not changed
-
-  jbr_name_postfix="_${bundle_type}"
-fi
-
-# 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/\\n//g) || do_exit $?
-if [ "$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 $JBRSDK_BUNDLE $JSDK_MODS_DIR "$modules" || do_exit $?
-
-if [ -z "$bundle_type" ]; then
-    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-linux-test-x64-b${build_number}
-    echo Creating "$JBRSDK_TEST" ...
-    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

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

@@ -1,81 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
-#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
-#   build_number     - specifies the number of JetBrainsRuntime build
-#
-# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-#
-# $ ./java --version
-# openjdk 11.0.6 2020-01-14
-# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
-# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
-#
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-
-JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
-
-source jb/project/tools/common/scripts/common.sh
-
-JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
-
-[ -z "$bundle_type" ] && (git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch || exit $?)
-
-linux32 bash configure \
-  --disable-warnings-as-errors \
-  --with-debug-level=release \
-  --with-vendor-name="${VENDOR_NAME}" \
-  --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
-  --with-version-pre= \
-  --with-version-build=$JDK_BUILD_NUMBER \
-  --with-version-opt=b${build_number} \
-  --with-boot-jdk=${BOOT_JDK} \
-  --enable-cds=yes || exit $?
-make clean CONF=linux-x86-server-release || exit $?
-make images CONF=linux-x86-server-release test-image || exit $?
-
-JBSDK=${JBRSDK_BASE_NAME}-linux-x86-b${build_number}
-BASE_DIR=build/linux-x86-server-release/images
-JSDK=${BASE_DIR}/jdk
-JBRSDK_BUNDLE=jbrsdk
-
-echo Fixing permissions
-chmod -R a+r $JSDK
-
-rm -rf $BASE_DIR/$JBRSDK_BUNDLE
-cp -r $JSDK $BASE_DIR/$JBRSDK_BUNDLE || exit $?
-
-echo Creating $JBSDK.tar.gz ...
-sed 's/JBR/JBRSDK/g' ${BASE_DIR}/${JBRSDK_BUNDLE}/release > release
-mv release ${BASE_DIR}/${JBRSDK_BUNDLE}/release
-
-tar -pcf $JBSDK.tar --exclude=*.debuginfo --exclude=demo --exclude=sample --exclude=man -C $BASE_DIR ${JBRSDK_BUNDLE} || exit $?
-gzip $JBSDK.tar || exit $?
-
-JBR_BUNDLE=jbr
-JBR_BASE_NAME=jbr-$JBSDK_VERSION
-rm -rf $BASE_DIR/$JBR_BUNDLE
-
-JBR=$JBR_BASE_NAME-linux-x86-b$build_number
-grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
-echo Running jlink....
-${JSDK}/bin/jlink \
-  --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
-  --add-modules $(xargs < modules.list.x86 | sed s/" "//g | sed s/,$//g) --output ${BASE_DIR}/${JBR_BUNDLE} || exit $?
-
-echo Modifying release info ...
-grep -v \"^JAVA_VERSION\" ${JSDK}/release | grep -v \"^MODULES\" >> ${BASE_DIR}/${JBR_BUNDLE}/release
-
-echo Creating $JBR.tar.gz ...
-tar -pcf $JBR.tar -C $BASE_DIR $JBR_BUNDLE || exit $?
-gzip $JBR.tar || exit $?
-
-JBRSDK_TEST=$JBRSDK_BASE_NAME-linux-test-x86-b$build_number
-echo Creating $JBRSDK_TEST.tar.gz ...
-tar -pcf $JBRSDK_TEST.tar -C $BASE_DIR --exclude='test/jdk/demos' --exclude='test/hotspot/gtest' test || exit $?
-gzip $JBRSDK_TEST.tar || exit $?

jb/project/tools/mac/scripts/entitlements.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-    <dict>
-        <key>com.apple.security.cs.allow-jit</key>
-        <true/>
-        <key>com.apple.security.cs.allow-unsigned-executable-memory</key>
-        <true/>
-        <key>com.apple.security.cs.allow-dyld-environment-variables</key>
-        <true/>
-        <key>com.apple.security.cs.disable-library-validation</key>
-        <true/>
-        <key>com.apple.security.cs.disable-executable-page-protection</key>
-        <true/>
-    </dict>
-</plist>

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

@@ -1,139 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   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
-#
-# 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:
-#   JCEF_PATH - specifies the path to the directory with JCEF binaries.
-#               By default JCEF binaries should be located in ./jcef_mac
-
-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_mac}
-MAJOR_JBSDK_VERSION=$(echo "$JBSDK_VERSION_WITH_DOTS" | awk -F "." '{print $1}')
-BOOT_JDK=${BOOT_JDK:=$(/usr/libexec/java_home -v 14)}
-
-source jb/project/tools/common/scripts/common.sh
-
-function create_image_bundle {
-  __bundle_name=$1
-  __arch_name=$2
-  __modules_path=$3
-  __modules=$4
-
-  tmp=.bundle.$$.tmp
-  mkdir "$tmp" || do_exit $?
-
-  [ "$bundle_type" == "fd" ] && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-osx-x64-${fastdebug_infix}b${build_number}
-
-  JRE_CONTENTS=$tmp/$__arch_name/Contents
-  mkdir -p "$JRE_CONTENTS" || do_exit $?
-
-  echo Running jlink...
-  "$JSDK"/bin/jlink \
-    --module-path "$__modules_path" --no-man-pages --compress=2 \
-    --add-modules "$__modules" --output "$JRE_CONTENTS/Home" || do_exit $?
-
-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> "$JRE_CONTENTS/Home/release"
-  if [ "$__bundle_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' $JRE_CONTENTS/Home/release > release
-    mv release $JRE_CONTENTS/Home/release
-  fi
-
-  cp -R "$JSDK"/../MacOS "$JRE_CONTENTS"
-  cp "$JSDK"/../Info.plist "$JRE_CONTENTS"
-  [ -n "$bundle_type" ] && (cp -a $JCEF_PATH/Frameworks "$JRE_CONTENTS" || do_exit $?)
-
-  echo Creating "$JBR".tar.gz ...
-  COPYFILE_DISABLE=1 tar -pczf "$JBR".tar.gz --exclude='*.dSYM' --exclude='man' -C "$tmp" "$__arch_name" || do_exit $?
-  rm -rf "$tmp"
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=macosx-x86_64-server-release
-
-case "$bundle_type" in
-  "jcef")
-    do_reset_changes=1
-    ;;
-  "dcevm")
-    HEAD_REVISION=$(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=""
-    ;;
-  "fd")
-    do_reset_changes=1
-    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
-    RELEASE_NAME=macosx-x86_64-server-fastdebug
-    ;;
-esac
-
-sh configure \
-  --disable-warnings-as-errors \
-  $WITH_DEBUG_LEVEL \
-  --with-vendor-name="$VENDOR_NAME" \
-  --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-  --with-version-pre= \
-  --with-version-build="$JDK_BUILD_NUMBER" \
-  --with-version-opt=b"$build_number" \
-  --with-boot-jdk="$BOOT_JDK" \
-  --enable-cds=yes || do_exit $?
-
-make clean CONF=$RELEASE_NAME || do_exit $?
-make images CONF=$RELEASE_NAME || do_exit $?
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk-bundle/jdk-$MAJOR_JBSDK_VERSION.jdk/Contents/Home
-JSDK_MODS_DIR=$IMAGES_DIR/jmods
-JBRSDK_BUNDLE=jbrsdk
-
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
-  git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
-  update_jsdk_mods "$JSDK" "$JCEF_PATH"/jmods "$JSDK"/jmods "$JSDK_MODS_DIR" || do_exit $?
-  cp $JCEF_PATH/jmods/* $JSDK_MODS_DIR # $JSDK/jmods is not changed
-
-  jbr_name_postfix="_${bundle_type}"
-fi
-
-# 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/\\n//g) || do_exit $?
-if [ "$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" "$JBRSDK_BUNDLE" "$JSDK_MODS_DIR" "$modules" || do_exit $?
-
-if [ -z "$bundle_type" ]; then
-    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-osx-test-x64-b${build_number}
-    echo Creating "$JBRSDK_TEST" ...
-    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

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

@@ -1,120 +0,0 @@
-#!/bin/bash
-
-APP_DIRECTORY=$1
-APPL_USER=$2
-APPL_PASSWORD=$3
-APP_NAME=$4
-BUNDLE_ID=$5
-FAKE_ROOT="${6:-fake-root}"
-
-if [[ -z "$APP_DIRECTORY" ]] || [[ -z "$APPL_USER" ]] || [[ -z "$APPL_PASSWORD" ]]; then
-  echo "Usage: $0 AppDirectory Username Password"
-  exit 1
-fi
-if [[ ! -d "$APP_DIRECTORY" ]]; then
-  echo "AppDirectory '$APP_DIRECTORY' does not exist or not a directory"
-  exit 1
-fi
-
-function log() {
-  echo "$(date '+[%H:%M:%S]') $*"
-}
-
-function publish-log() {
-  id=$1
-  file=$2
-  curl -T "$file" "$ARTIFACTORY_URL/$id" || true
-}
-
-function altool-upload() {
-  # Since altool uses same file for upload token we have to trick it into using different folders for token file location
-  # Also it copies zip into TMPDIR so we override it too, to simplify cleanup
-  OLD_HOME="$HOME"
-  export HOME="$FAKE_ROOT/home"
-  export TMPDIR="$FAKE_ROOT/tmp"
-  mkdir -p "$HOME"
-  mkdir -p "$TMPDIR"
-  export _JAVA_OPTIONS="-Duser.home=$HOME -Djava.io.tmpdir=$TMPDIR"
-  # Reduce amount of downloads, cache transporter libraries
-  shared_itmstransporter="$OLD_HOME/shared-itmstransporter"
-  if [[ -f "$shared_itmstransporter" ]]; then
-    cp -r "$shared_itmstransporter" "$HOME/.itmstransporter"
-  fi
-  # For some reason altool prints everything to stderr, not stdout
-  set +e
-  xcrun altool --notarize-app \
-    --username "$APPL_USER" --password "$APPL_PASSWORD" \
-    --primary-bundle-id "$BUNDLE_ID" \
-    --asc-provider JetBrainssro --file "$1" 2>&1 | tee "altool.init.out"
-  unset TMPDIR
-  export HOME="$OLD_HOME"
-  set -e
-}
-
-#immediately exit script with an error if a command fails
-set -euo pipefail
-
-file="$APP_NAME.zip"
-
-log "Zipping $file..."
-rm -rf "$file"
-ditto -c -k --sequesterRsrc --keepParent "$APP_DIRECTORY/Contents" "$file"
-
-log "Notarizing $file..."
-rm -rf "altool.init.out" "altool.check.out"
-altool-upload "$file"
-
-rm -rf "$file"
-
-notarization_info="$(grep -e "RequestUUID" "altool.init.out" | grep -oE '([0-9a-f-]{36})')"
-
-if [ -z "$notarization_info" ]; then
-  log "Faile to read RequestUUID from altool.init.out"
-  exit 10
-fi
-
-PATH="$PATH:/usr/local/bin/"
-
-log "Notarization request sent, awaiting response"
-spent=0
-
-while true; do
-  # For some reason altool prints everything to stderr, not stdout
-  xcrun altool --username "$APPL_USER" --notarization-info "$notarization_info" --password "$APPL_PASSWORD" >"altool.check.out" 2>&1 || true
-  status="$(grep -oe 'Status: .*' "altool.check.out" | cut -c 9- || true)"
-  log "Current status: $status"
-  if [ "$status" = "invalid" ]; then
-    log "Notarization failed"
-    ec=1
-  elif [ "$status" = "success" ]; then
-    log "Notarization succeeded"
-    ec=0
-  else
-    if [ "$status" != "in progress" ]; then
-      log "Unknown notarization status, waiting more, altool output:"
-      cat "altool.check.out"
-    fi
-    if [[ $spent -gt 60 ]]; then
-      log "Waiting time out (apx 60 minutes)"
-      ec=2
-      break
-    fi
-    sleep 60
-    ((spent += 1))
-    continue
-  fi
-  developer_log="developer_log.json"
-  log "Fetching $developer_log"
-  # TODO: Replace cut with trim or something better
-  url="$(grep -oe 'LogFileURL: .*' "altool.check.out" | cut -c 13-)"
-  wget "$url" -O "$developer_log" && cat "$developer_log" || true
-  if [ $ec != 0 ]; then
-    log "Publishing $developer_log"
-    publish-log "$notarization_info" "$developer_log"
-  fi
-  break
-done
-cat "altool.check.out"
-
-rm -rf "altool.init.out" "altool.check.out"
-exit $ec

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

@@ -1,94 +0,0 @@
-#!/bin/bash
-
-APP_DIRECTORY=$1
-JB_CERT=$2
-
-if [[ -z "$APP_DIRECTORY" ]] || [[ -z "$JB_CERT" ]]; then
-  echo "Usage: $0 AppDirectory CertificateID"
-  exit 1
-fi
-if [[ ! -d "$APP_DIRECTORY" ]]; then
-  echo "AppDirectory '$APP_DIRECTORY' does not exist or not a directory"
-  exit 1
-fi
-
-function log() {
-  echo "$(date '+[%H:%M:%S]') $*"
-}
-
-#immediately exit script with an error if a command fails
-set -euo pipefail
-
-# Cleanup files left from previous sign attempt (if any)
-find "$APP_DIRECTORY" -name '*.cstemp' -exec rm '{}' \;
-
-log "Signing libraries and executables..."
-# -perm +111 searches for executables
-for f in \
-   "Contents/Home/bin" \
-   "Contents/Home/lib" \
-   "Contents/Frameworks"; 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 \
-      -v -s "$JB_CERT" --options=runtime \
-      --entitlements entitlements.xml {} \;
-  fi
-done
-
-log "Signing libraries in jars in $PWD"
-
-# todo: add set -euo pipefail; into the inner sh -c
-# `-e` prevents `grep -q && printf` loginc
-# with `-o pipefail` there's no input for 'while' loop
-find "$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 $file"
-
-    rm -rf jarfolder jar.jar
-    mkdir jarfolder
-    filename="${file##*/}"
-    log "Filename: $filename"
-    cp "$file" jarfolder && (cd jarfolder && jar xf "$filename" && rm "$filename")
-
-    find jarfolder \
-      -type f \( -name "*.jnilib" -o -name "*.dylib" -o -name "*.so" -o -name "jattach" \) \
-      -exec codesign --timestamp \
-      -v -s "$JB_CERT" --options=runtime \
-      --entitlements entitlements.xml {} \;
-
-    (cd jarfolder; zip -q -r -o ../jar.jar .)
-    mv jar.jar "$file"
-  done
-
-rm -rf jarfolder jar.jar
-
-log "Signing other files..."
-for f in \
-  "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 \
-      -v -s "$JB_CERT" --options=runtime \
-      --entitlements entitlements.xml {} \;
-  fi
-done
-
-#log "Signing executable..."
-#codesign --timestamp \
-#    -v -s "$JB_CERT" --options=runtime \
-#    --force \
-#    --entitlements entitlements.xml "$APP_DIRECTORY/Contents/MacOS/idea"
-
-log "Signing whole app..."
-codesign --timestamp \
-  -v -s "$JB_CERT" --options=runtime \
-  --force \
-  --entitlements entitlements.xml "$APP_DIRECTORY"
-
-log "Verifying java is not broken"
-find "$APP_DIRECTORY" \
-  -type f -name 'java' -perm +111 -exec {} -version \;

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

@@ -1,138 +0,0 @@
-#!/bin/bash
-
-#immediately exit script with an error if a command fails
-set -euo pipefail
-
-export COPY_EXTENDED_ATTRIBUTES_DISABLE=true
-export COPYFILE_DISABLE=true
-
-INPUT_FILE=$1
-EXPLODED=$2.exploded
-BACKUP_JMODS=$2.backup
-USERNAME=$3
-PASSWORD=$4
-CODESIGN_STRING=$5
-NOTARIZE=$6
-BUNDLE_ID=$7
-
-cd "$(dirname "$0")"
-
-function log() {
-  echo "$(date '+[%H:%M:%S]') $*"
-}
-
-log "Deleting $EXPLODED ..."
-if test -d "$EXPLODED"; then
-  find "$EXPLODED" -mindepth 1 -maxdepth 1 -exec chmod -R u+wx '{}' \;
-fi
-rm -rf "$EXPLODED"
-mkdir "$EXPLODED"
-rm -rf "$BACKUP_JMODS"
-mkdir "$BACKUP_JMODS"
-
-log "Unzipping $INPUT_FILE to $EXPLODED ..."
-tar -xzvf "$INPUT_FILE" --directory $EXPLODED
-rm "$INPUT_FILE"
-BUILD_NAME="$(ls "$EXPLODED")"
-if test -d $EXPLODED/$BUILD_NAME/Contents/Home/jmods; then
-  mv $EXPLODED/$BUILD_NAME/Contents/Home/jmods $BACKUP_JMODS
-fi
-if test -f $EXPLODED/$BUILD_NAME/Contents/MacOS/libjli.dylib; then
-  mv $EXPLODED/$BUILD_NAME/Contents/MacOS/libjli.dylib $BACKUP_JMODS
-fi
-if test -d $EXPLODED/$BUILD_NAME/Contents/Home/Frameworks; then
-  mv $EXPLODED/$BUILD_NAME/Contents/Home/Frameworks $BACKUP_JMODS
-fi
-
-log "$INPUT_FILE extracted and removed"
-
-APPLICATION_PATH="$EXPLODED/$BUILD_NAME"
-
-find "$APPLICATION_PATH/Contents/Home/bin" \
-  -maxdepth 1 -type f -name '*.jnilib' -print0 |
-  while IFS= read -r -d $'\0' file; do
-    if [ -f "$file" ]; then
-      log "Linking $file"
-      b="$(basename "$file" .jnilib)"
-      ln -sf "$b.jnilib" "$(dirname "$file")/$b.dylib"
-    fi
-  done
-
-find "$APPLICATION_PATH/Contents/" \
-  -maxdepth 1 -type f -name '*.txt' -print0 |
-  while IFS= read -r -d $'\0' file; do
-    if [ -f "$file" ]; then
-      log "Moving $file"
-      mv "$file" "$APPLICATION_PATH/Contents/Resources"
-    fi
-  done
-
-non_plist=$(find "$APPLICATION_PATH/Contents/" -maxdepth 1 -type f -and -not -name 'Info.plist' | wc -l)
-if [[ $non_plist -gt 0 ]]; then
-  log "Only Info.plist file is allowed in Contents directory but found $non_plist file(s):"
-  log "$(find "$APPLICATION_PATH/Contents/" -maxdepth 1 -type f -and -not -name 'Info.plist')"
-  exit 1
-fi
-
-log "Unlocking keychain..."
-# Make sure *.p12 is imported into local KeyChain
-security unlock-keychain -p "$PASSWORD" "/Users/$USERNAME/Library/Keychains/login.keychain"
-
-attempt=1
-limit=3
-set +e
-while [[ $attempt -le $limit ]]; do
-  log "Signing (attempt $attempt) $APPLICATION_PATH ..."
-  ./sign.sh "$APPLICATION_PATH" "$CODESIGN_STRING"
-  ec=$?
-  if [[ $ec -ne 0 ]]; then
-    ((attempt += 1))
-    if [ $attempt -eq $limit ]; then
-      set -e
-    fi
-    log "Signing failed, wait for 30 sec and try to sign again"
-    sleep 30
-  else
-    log "Signing done"
-    codesign -v "$APPLICATION_PATH" -vvvvv
-    log "Check sign done"
-    ((attempt += limit))
-  fi
-done
-
-set -e
-
-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" "$APP_NAME" "$BUNDLE_ID" "$FAKE_ROOT"
-  rm -rf "$FAKE_ROOT"
-
-  set +e
-  log "Stapling..."
-  xcrun stapler staple "$APPLICATION_PATH"
-else
-  log "Notarization disabled"
-  log "Stapling disabled"
-fi
-
-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 $EXPLODED/$BUILD_NAME/Contents/Home
-  fi
-
-  COPYFILE_DISABLE=1 tar -pczf $INPUT_FILE --exclude='*.dSYM' --exclude='man' -C $EXPLODED $BUILD_NAME
-  log "Finished zipping"
-)
-rm -rf "$EXPLODED"
-log "Done"

jb/project/tools/patches/add_jcef_module.patch

@@ -1,30 +0,0 @@
-diff --git modules.list modules.list
-index 7c4b3e9cb6d..5ed60349ca7 100644
---- modules.list
-+++ modules.list
-@@ -53,4 +53,7 @@ jdk.security.jgss,
- jdk.unsupported,
- jdk.xml.dom,
- jdk.zipfs,
--jdk.hotspot.agent
-+jdk.hotspot.agent,
-+jcef,
-+gluegen.rt,
-+jogl.all
-diff --git src/java.desktop/share/classes/module-info.java src/java.desktop/share/classes/module-info.java
-index b663b382f52..3e9acdc0c27 100644
---- src/java.desktop/share/classes/module-info.java
-+++ src/java.desktop/share/classes/module-info.java
-@@ -109,7 +109,11 @@ 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

@@ -1,29 +0,0 @@
-From 960dafbeeba190911955c208b611fecc15d66738 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Wed, 11 Mar 2020 14:19:34 +0100
-Subject: [PATCH 03/34] Fix class cast exception on redefinition of class A,
- that is superclass of B that has anonymous class C
-
----
- src/hotspot/share/oops/instanceKlass.cpp | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index 994fc8a3bc8..3be3a09ef8f 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -953,7 +953,10 @@ bool InstanceKlass::link_class_impl(TRAPS) {
- 
-     if (!is_linked()) {
-       if (!is_rewritten()) {
--        {
-+        // (DCEVM): If class A is being redefined and class B->A (B is extended from A) and B is host class of anonymous class C
-+        // then second redefinition fails with cannot cast klass exception. So we currently turn off bytecode verification
-+        // on redefinition.
-+        if (!AllowEnhancedClassRedefinition || !newest_version()->is_redefining()) {
-           bool verify_ok = verify_code(THREAD);
-           if (!verify_ok) {
-             return false;
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0005-Support-for-Lambda-class-redefinition.patch

@@ -1,240 +0,0 @@
-From 39df5f163d4a0f1fd6b92313a5570808f19d5e20 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 4 Oct 2020 21:12:12 +0200
-Subject: [PATCH 05/34] Support for Lambda class redefinition
-
----
- .../share/classfile/classLoaderData.cpp       |  9 +++
- .../share/classfile/classLoaderData.hpp       |  2 +-
- .../share/classfile/systemDictionary.cpp      | 12 +++-
- .../share/classfile/systemDictionary.hpp      |  1 +
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 65 +++++++++++++++++--
- .../prims/jvmtiEnhancedRedefineClasses.hpp    |  1 +
- .../share/prims/resolvedMethodTable.cpp       |  2 +
- src/hotspot/share/prims/unsafe.cpp            |  1 +
- 8 files changed, 83 insertions(+), 10 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
-index 0cd90bb8c27..4d64c6b454a 100644
---- a/src/hotspot/share/classfile/classLoaderData.cpp
-+++ b/src/hotspot/share/classfile/classLoaderData.cpp
-@@ -593,6 +593,15 @@ Dictionary* ClassLoaderData::create_dictionary() {
-   return new Dictionary(this, size, resizable);
- }
- 
-+void ClassLoaderData::exchange_holders(ClassLoaderData* cld) {
-+  oop holder_oop = _holder.peek();
-+  _holder.replace(cld->_holder.peek());
-+  cld->_holder.replace(holder_oop);
-+  WeakHandle<vm_class_loader_data> exchange = _holder;
-+  _holder = cld->_holder;
-+  cld->_holder = exchange;
-+}
-+
- // Tell the GC to keep this klass alive while iterating ClassLoaderDataGraph
- oop ClassLoaderData::holder_phantom() const {
-   // A klass that was previously considered dead can be looked up in the
-diff --git a/src/hotspot/share/classfile/classLoaderData.hpp b/src/hotspot/share/classfile/classLoaderData.hpp
-index ba2393f8dd0..e2ae0a77351 100644
---- a/src/hotspot/share/classfile/classLoaderData.hpp
-+++ b/src/hotspot/share/classfile/classLoaderData.hpp
-@@ -181,7 +181,7 @@ class ClassLoaderData : public CHeapObj<mtClass> {
-   bool has_accumulated_modified_oops()   { return _accumulated_modified_oops; }
-   oop holder_no_keepalive() const;
-   oop holder_phantom() const;
--
-+  void exchange_holders(ClassLoaderData* cld);
-  private:
-   void unload();
-   bool keep_alive() const       { return _keep_alive > 0; }
-diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
-index bd0cae7cb9b..8f2b46add4d 100644
---- a/src/hotspot/share/classfile/systemDictionary.cpp
-+++ b/src/hotspot/share/classfile/systemDictionary.cpp
-@@ -1062,10 +1062,14 @@ InstanceKlass* SystemDictionary::parse_stream(Symbol* class_name,
-                                               Handle class_loader,
-                                               ClassFileStream* st,
-                                               const ClassLoadInfo& cl_info,
-+                                              InstanceKlass* old_klass,
-                                               TRAPS) {
- 
-   EventClassLoad class_load_start_event;
-   ClassLoaderData* loader_data;
-+  
-+  bool is_redefining = (old_klass != NULL);
-+  
-   bool is_unsafe_anon_class = cl_info.unsafe_anonymous_host() != NULL;
- 
-   // - for unsafe anonymous class: create a new CLD whith a class holder that uses
-@@ -1094,8 +1098,12 @@ InstanceKlass* SystemDictionary::parse_stream(Symbol* class_name,
-                                                       class_name,
-                                                       loader_data,
-                                                       cl_info,
--                                                      false, // pick_newest
-+                                                      is_redefining, // pick_newest
-                                                       CHECK_NULL);
-+  if (is_redefining && k != NULL) {
-+    k->set_redefining(true);
-+    k->set_old_version(old_klass);
-+  }
- 
-   if ((cl_info.is_hidden() || is_unsafe_anon_class) && k != NULL) {
-     // Hidden classes that are not strong and unsafe anonymous classes must update
-@@ -1998,7 +2006,7 @@ void SystemDictionary::remove_from_hierarchy(InstanceKlass* k) {
-   k->remove_from_sibling_list();
- }
- 
--// (DCEVM) 
-+// (DCEVM)
- void SystemDictionary::update_constraints_after_redefinition() {
-   constraints()->update_after_redefinition();
- }
-diff --git a/src/hotspot/share/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
-index 4547449dbec..931e655d631 100644
---- a/src/hotspot/share/classfile/systemDictionary.hpp
-+++ b/src/hotspot/share/classfile/systemDictionary.hpp
-@@ -329,6 +329,7 @@ public:
-                                      Handle class_loader,
-                                      ClassFileStream* st,
-                                      const ClassLoadInfo& cl_info,
-+                                     InstanceKlass* old_klass,
-                                      TRAPS);
- 
-   // Resolve from stream (called by jni_DefineClass and JVM_DefineClass)
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 92ce6c27b8a..8b765623dcd 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -494,6 +494,8 @@ void VM_EnhancedRedefineClasses::doit() {
-     ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
- 
- 
-+    // SystemDictionary::methods_do(fix_invoke_method);
-+
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-     bool trace_name_printed = false;
-@@ -756,12 +758,34 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
-     // load hook event.
-     state->set_class_being_redefined(the_class, _class_load_kind);
- 
--    InstanceKlass* k = SystemDictionary::resolve_from_stream(the_class_sym,
--                                                the_class_loader,
--                                                protection_domain,
--                                                &st,
--                                                the_class,
--                                                THREAD);
-+    InstanceKlass* k;
-+
-+    if (InstanceKlass::cast(the_class)->is_anonymous()) {
-+      const InstanceKlass* host_class = the_class->host_klass();
-+
-+      // Make sure it's the real host class, not another anonymous class.
-+      while (host_class != NULL && host_class->is_anonymous()) {
-+        host_class = host_class->host_klass();
-+      }
-+
-+      k = SystemDictionary::parse_stream(the_class_sym,
-+                                         the_class_loader,
-+                                         protection_domain,
-+                                         &st,
-+                                         host_class,
-+                                         the_class,
-+                                         NULL,
-+                                         THREAD);
-+      k->class_loader_data()->exchange_holders(the_class->class_loader_data());
-+      the_class->class_loader_data()->inc_keep_alive();
-+    } else {
-+      k = SystemDictionary::resolve_from_stream(the_class_sym,
-+                                                  the_class_loader,
-+                                                  protection_domain,
-+                                                  &st,
-+                                                  the_class,
-+                                                  THREAD);
-+    }
-     // Clear class_being_redefined just to be sure.
-     state->clear_class_being_redefined();
- 
-@@ -1442,6 +1466,30 @@ void VM_EnhancedRedefineClasses::MethodDataCleaner::do_klass(Klass* k) {
-   }
- }
- 
-+void VM_EnhancedRedefineClasses::fix_invoke_method(Method* method) {
-+
-+  constantPoolHandle other_cp = constantPoolHandle(method->constants());
-+
-+  for (int i = 0; i < other_cp->length(); i++) {
-+    if (other_cp->tag_at(i).is_klass()) {
-+      Klass* klass = other_cp->resolved_klass_at(i);
-+      if (klass->new_version() != NULL) {
-+        // Constant pool entry points to redefined class -- update to the new version
-+        other_cp->klass_at_put(i, klass->newest_version());
-+      }
-+      assert(other_cp->resolved_klass_at(i)->new_version() == NULL, "Must be new klass!");
-+    }
-+  }
-+
-+  ConstantPoolCache* cp_cache = other_cp->cache();
-+  if (cp_cache != NULL) {
-+    cp_cache->clear_entries();
-+  }
-+
-+}
-+
-+
-+
- void VM_EnhancedRedefineClasses::update_jmethod_ids() {
-   for (int j = 0; j < _matching_methods_length; ++j) {
-     Method* old_method = _matching_old_methods[j];
-@@ -1979,7 +2027,10 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
-   // Find classes not directly redefined, but affected by a redefinition (because one of its supertypes is redefined)
-   AffectedKlassClosure closure(_affected_klasses);
-   // Updated in j10, from original SystemDictionary::classes_do
--  ClassLoaderDataGraph::dictionary_classes_do(&closure);
-+
-+  ClassLoaderDataGraph::classes_do(&closure);
-+  //ClassLoaderDataGraph::dictionary_classes_do(&closure);
-+
-   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
- 
-   // Sort the affected klasses such that a supertype is always on a smaller array index than its subtype.
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 60b62c3170a..d8a11b51fe9 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -116,6 +116,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   void rollback();
-   static void mark_as_scavengable(nmethod* nm);
-   static void unpatch_bytecode(Method* method);
-+  static void fix_invoke_method(Method* method);
- 
-   // Figure out which new methods match old methods in name and signature,
-   // which methods have been added, and which are no longer present
-diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
-index 122bb8c186b..81b3aa96564 100644
---- a/src/hotspot/share/prims/resolvedMethodTable.cpp
-+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
-@@ -414,6 +414,8 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
-         InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
-         Method* newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
- 
-+        log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
-+
-         assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
-         assert(newer_method != NULL, "method_with_idnum() should not be NULL");
-         assert(old_method != newer_method, "sanity check");
-diff --git a/src/hotspot/share/prims/unsafe.cpp b/src/hotspot/share/prims/unsafe.cpp
-index 72d81ec9d6c..027afa3fabd 100644
---- a/src/hotspot/share/prims/unsafe.cpp
-+++ b/src/hotspot/share/prims/unsafe.cpp
-@@ -865,6 +865,7 @@ Unsafe_DefineAnonymousClass_impl(JNIEnv *env,
-                                                 host_loader,
-                                                 &st,
-                                                 cl_info,
-+                                                NULL,
-                                                 CHECK_NULL);
-   if (anonk == NULL) {
-     return NULL;
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0006-Fix-no-original-bytecode-found-error-if-method-with-.patch

@@ -1,135 +0,0 @@
-From 5af1daedc86b5fec0f222cbdda3afbdf518985ea Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sat, 23 May 2020 10:02:15 +0200
-Subject: [PATCH 06/34] Fix "no original bytecode found" error if method with
- bkp is missing
-
-Sometimes IDE can deploy class with erroneous method, such method has
-n bytecode, but breakpoint position can still exist.
----
- src/hotspot/share/interpreter/bytecodes.cpp    |  2 +-
- .../share/interpreter/interpreterRuntime.cpp   |  2 +-
- src/hotspot/share/oops/method.cpp              |  8 ++++----
- src/hotspot/share/oops/method.hpp              |  4 ++--
- .../prims/jvmtiEnhancedRedefineClasses.cpp     | 18 ++++++++++--------
- 5 files changed, 18 insertions(+), 16 deletions(-)
-
-diff --git a/src/hotspot/share/interpreter/bytecodes.cpp b/src/hotspot/share/interpreter/bytecodes.cpp
-index e377e36b88c..262ecc021b2 100644
---- a/src/hotspot/share/interpreter/bytecodes.cpp
-+++ b/src/hotspot/share/interpreter/bytecodes.cpp
-@@ -84,7 +84,7 @@ Bytecodes::Code Bytecodes::code_at(Method* method, int bci) {
- Bytecodes::Code Bytecodes::non_breakpoint_code_at(const Method* method, address bcp) {
-   assert(method != NULL, "must have the method for breakpoint conversion");
-   assert(method->contains(bcp), "must be valid bcp in method");
--  return method->orig_bytecode_at(method->bci_from(bcp));
-+  return method->orig_bytecode_at(method->bci_from(bcp), false);
- }
- 
- int Bytecodes::special_length_at(Bytecodes::Code code, address bcp, address end) {
-diff --git a/src/hotspot/share/interpreter/interpreterRuntime.cpp b/src/hotspot/share/interpreter/interpreterRuntime.cpp
-index ed3cc3eb6a2..504e59caf51 100644
---- a/src/hotspot/share/interpreter/interpreterRuntime.cpp
-+++ b/src/hotspot/share/interpreter/interpreterRuntime.cpp
-@@ -814,7 +814,7 @@ JRT_END
- // Invokes
- 
- JRT_ENTRY(Bytecodes::Code, InterpreterRuntime::get_original_bytecode_at(JavaThread* thread, Method* method, address bcp))
--  return method->orig_bytecode_at(method->bci_from(bcp));
-+  return method->orig_bytecode_at(method->bci_from(bcp), false);
- JRT_END
- 
- JRT_ENTRY(void, InterpreterRuntime::set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code))
-diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
-index 516f2bb8f2f..1c88511a5fc 100644
---- a/src/hotspot/share/oops/method.cpp
-+++ b/src/hotspot/share/oops/method.cpp
-@@ -1853,14 +1853,14 @@ bool CompressedLineNumberReadStream::read_pair() {
- 
- #if INCLUDE_JVMTI
- 
--Bytecodes::Code Method::orig_bytecode_at(int bci) const {
-+Bytecodes::Code Method::orig_bytecode_at(int bci, bool no_fatal) const {
-   BreakpointInfo* bp = method_holder()->breakpoints();
-   for (; bp != NULL; bp = bp->next()) {
-     if (bp->match(this, bci)) {
-       return bp->orig_bytecode();
-     }
-   }
--  {
-+  if (!no_fatal) {
-     ResourceMark rm;
-     fatal("no original bytecode found in %s at bci %d", name_and_sig_as_C_string(), bci);
-   }
-@@ -2006,7 +2006,7 @@ BreakpointInfo::BreakpointInfo(Method* m, int bci) {
-   _signature_index = m->signature_index();
-   _orig_bytecode = (Bytecodes::Code) *m->bcp_from(_bci);
-   if (_orig_bytecode == Bytecodes::_breakpoint)
--    _orig_bytecode = m->orig_bytecode_at(_bci);
-+    _orig_bytecode = m->orig_bytecode_at(_bci, false);
-   _next = NULL;
- }
- 
-@@ -2015,7 +2015,7 @@ void BreakpointInfo::set(Method* method) {
-   {
-     Bytecodes::Code code = (Bytecodes::Code) *method->bcp_from(_bci);
-     if (code == Bytecodes::_breakpoint)
--      code = method->orig_bytecode_at(_bci);
-+      code = method->orig_bytecode_at(_bci, false);
-     assert(orig_bytecode() == code, "original bytecode must be the same");
-   }
- #endif
-diff --git a/src/hotspot/share/oops/method.hpp b/src/hotspot/share/oops/method.hpp
-index 83ed2d9c3c1..4d4cc6dc012 100644
---- a/src/hotspot/share/oops/method.hpp
-+++ b/src/hotspot/share/oops/method.hpp
-@@ -230,7 +230,7 @@ class Method : public Metadata {
- 
-   // JVMTI breakpoints
- #if !INCLUDE_JVMTI
--  Bytecodes::Code orig_bytecode_at(int bci) const {
-+  Bytecodes::Code orig_bytecode_at(int bci, bool no_fatal) const {
-     ShouldNotReachHere();
-     return Bytecodes::_shouldnotreachhere;
-   }
-@@ -239,7 +239,7 @@ class Method : public Metadata {
-   };
-   u2   number_of_breakpoints() const {return 0;}
- #else // !INCLUDE_JVMTI
--  Bytecodes::Code orig_bytecode_at(int bci) const;
-+  Bytecodes::Code orig_bytecode_at(int bci, bool no_fatal) const;
-   void set_orig_bytecode_at(int bci, Bytecodes::Code code);
-   void set_breakpoint(int bci);
-   void clear_breakpoint(int bci);
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 8b765623dcd..a859b8e1162 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1362,14 +1362,16 @@ void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
- 
-     if (code == Bytecodes::_breakpoint) {
-       int bci = method->bci_from(bcp);
--      code = method->orig_bytecode_at(bci);
--      java_code = Bytecodes::java_code(code);
--      if (code != java_code &&
--           (java_code == Bytecodes::_getfield ||
--            java_code == Bytecodes::_putfield ||
--            java_code == Bytecodes::_aload_0)) {
--        // Let breakpoint table handling unpatch bytecode
--        method->set_orig_bytecode_at(bci, java_code);
-+      code = method->orig_bytecode_at(bci, true);
-+      if (code != Bytecodes::_shouldnotreachhere) {
-+        java_code = Bytecodes::java_code(code);
-+        if (code != java_code &&
-+             (java_code == Bytecodes::_getfield ||
-+              java_code == Bytecodes::_putfield ||
-+              java_code == Bytecodes::_aload_0)) {
-+          // Let breakpoint table handling unpatch bytecode
-+          method->set_orig_bytecode_at(bci, java_code);
-+        }
-       }
-     } else {
-       java_code = Bytecodes::java_code(code);
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0007-Replace-deleted-method-with-Universe-throw_no_such_m.patch

@@ -1,57 +0,0 @@
-From 19d2274a5dff6e6b31474252b45e5e7484f0180b Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 24 May 2020 12:07:42 +0200
-Subject: [PATCH 07/34] Replace deleted method with
- Universe::throw_no_such_method_error
-
----
- .../share/prims/resolvedMethodTable.cpp       | 28 +++++++++----------
- 1 file changed, 14 insertions(+), 14 deletions(-)
-
-diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
-index 81b3aa96564..caf03ffe56d 100644
---- a/src/hotspot/share/prims/resolvedMethodTable.cpp
-+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
-@@ -404,25 +404,25 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
- 
-       if (old_method->is_old()) {
- 
-+        InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
-+        Method* newer_method;
-+
-         // Method* new_method;
-         if (old_method->is_deleted()) {
--          // FIXME:(DCEVM) - check if exception can be thrown
--          // new_method = Universe::throw_no_such_method_error();
--          continue;
--        }
--
--        InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
--        Method* newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
-+          newer_method = Universe::throw_no_such_method_error();
-+        } else {
-+          newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
- 
--        log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
-+          log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
- 
--        assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
--        assert(newer_method != NULL, "method_with_idnum() should not be NULL");
--        assert(old_method != newer_method, "sanity check");
-+          assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
-+          assert(newer_method != NULL, "method_with_idnum() should not be NULL");
-+          assert(old_method != newer_method, "sanity check");
- 
--        if (_the_table->lookup(newer_method) != NULL) {
--          // old method was already adjusted if new method exists in _the_table
--            continue;
-+          if (_the_table->lookup(newer_method) != NULL) {
-+            // old method was already adjusted if new method exists in _the_table
-+              continue;
-+          }
-         }
- 
-         java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, newer_method);
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0009-Change-log-level-in-advanced-redefinition.patch

@@ -1,50 +0,0 @@
-From ca47ab5a0a6ce8e2644736f323a335a957311af9 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sat, 13 Jun 2020 18:50:59 +0200
-Subject: [PATCH 09/34] Change log level in advanced redefinition
-
-- Change log level for "Comparing different class ver.." to debug
-- Fix adjust_method_entries_dcevm logging levels and severity
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 2 +-
- src/hotspot/share/prims/resolvedMethodTable.cpp          | 4 ++--
- 2 files changed, 3 insertions(+), 3 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 6c9eb40ecf5..b09ba554e07 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -916,7 +916,7 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
-  // Calculated the difference between new and old class  (field change, method change, supertype change, ...).
- int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_class) {
-   int result = Klass::NoRedefinition;
--  log_info(redefine, class, load)("Comparing different class versions of class %s",new_class->name()->as_C_string());
-+  log_debug(redefine, class, load)("Comparing different class versions of class %s",new_class->name()->as_C_string());
- 
-   assert(new_class->old_version() != NULL, "must have old version");
-   InstanceKlass* the_class = InstanceKlass::cast(new_class->old_version());
-diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
-index caf03ffe56d..eb9fcda44f3 100644
---- a/src/hotspot/share/prims/resolvedMethodTable.cpp
-+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
-@@ -413,7 +413,7 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
-         } else {
-           newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
- 
--          log_info(redefine, class, load, exceptions)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
-+          log_debug(redefine, class, update)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
- 
-           assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
-           assert(newer_method != NULL, "method_with_idnum() should not be NULL");
-@@ -433,7 +433,7 @@ void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed)
- 
-         ResourceMark rm;
-         if (!(*trace_name_printed)) {
--          log_info(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
-+          log_debug(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
-            *trace_name_printed = true;
-         }
-         log_debug(redefine, class, update, constantpool)
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0010-AllowEnhancedClassRedefinition-is-false-disabled-by-.patch

@@ -1,26 +0,0 @@
-From 7e236beee0375656d1955fc1168143c1639fb7f1 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Tue, 6 Oct 2020 22:15:31 +0200
-Subject: [PATCH 10/34] AllowEnhancedClassRedefinition is false (disabled) by
- default
-
----
- src/hotspot/share/runtime/globals.hpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/runtime/globals.hpp b/src/hotspot/share/runtime/globals.hpp
-index 5b367704800..2710c6ea0e5 100644
---- a/src/hotspot/share/runtime/globals.hpp
-+++ b/src/hotspot/share/runtime/globals.hpp
-@@ -2466,7 +2466,7 @@ const size_t minimumSymbolTableSize = 1024;
-   diagnostic(bool, DeoptimizeNMethodBarriersALot, false,                    \
-                 "Make nmethod barriers deoptimise a lot.")                  \
-                                                                             \
--  product(bool, AllowEnhancedClassRedefinition, true,                       \
-+  product(bool, AllowEnhancedClassRedefinition, false,                      \
-              "Allow enhanced class redefinition beyond swapping method "    \
-              "bodies")                                                      \
-                                                                             \
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0012-Set-HOTSPOT_VM_DISTRO-Dynamic-Code-Evolution.patch

@@ -1,25 +0,0 @@
-From d56e73885111b386771f564ec6beb305338993df Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Mon, 19 Oct 2020 20:00:04 +0200
-Subject: [PATCH 12/34] Set HOTSPOT_VM_DISTRO=Dynamic Code Evolution
-
----
- make/autoconf/version-numbers | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/make/autoconf/version-numbers b/make/autoconf/version-numbers
-index aabdc5bed20..df8025a2e84 100644
---- a/make/autoconf/version-numbers
-+++ b/make/autoconf/version-numbers
-@@ -45,7 +45,7 @@ PRODUCT_NAME=OpenJDK
- PRODUCT_SUFFIX="Runtime Environment"
- JDK_RC_PLATFORM_NAME=Platform
- COMPANY_NAME=N/A
--HOTSPOT_VM_DISTRO="OpenJDK"
-+HOTSPOT_VM_DISTRO="Dynamic Code Evolution"
- VENDOR_URL=https://openjdk.java.net/
- VENDOR_URL_BUG=https://bugreport.java.com/bugreport/
- VENDOR_URL_VM_BUG=https://bugreport.java.com/bugreport/crash.jsp
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0013-Fix-G1-nmethod-registration.patch

@@ -1,71 +0,0 @@
-From 7ebad43ed45805b0a3736c510f708ff17697ba7e Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 11 Oct 2020 10:43:28 +0200
-Subject: [PATCH 13/34] Fix G1 nmethod registration
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 19 ++++++++++++++++---
- .../prims/jvmtiEnhancedRedefineClasses.hpp    |  3 ++-
- 2 files changed, 18 insertions(+), 4 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index b09ba554e07..718426f2819 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -216,7 +216,14 @@ void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
-   }
- }
- 
--void VM_EnhancedRedefineClasses::mark_as_scavengable_g1(nmethod* nm) {
-+void VM_EnhancedRedefineClasses::unregister_nmethod_g1(nmethod* nm) {
-+  // It should work not only for G1 but also for another GCs, but this way is safer now
-+  if (!nm->is_zombie() && !nm->is_unloaded()) {
-+    Universe::heap()->unregister_nmethod(nm);
-+  }
-+}
-+
-+void VM_EnhancedRedefineClasses::register_nmethod_g1(nmethod* nm) {
-   // It should work not only for G1 but also for another GCs, but this way is safer now
-   if (!nm->is_zombie() && !nm->is_unloaded()) {
-     Universe::heap()->register_nmethod(nm);
-@@ -521,8 +528,9 @@ void VM_EnhancedRedefineClasses::doit() {
-     // For now, mark all nmethod's as scavengable that are not scavengable already
-     if (ScavengeRootsInCode) {
-       if (UseG1GC) {
--        // this should work also for other GCs
--        CodeCache::nmethods_do(mark_as_scavengable_g1);
-+        // G1 holds references to nmethods in regions based on oops values. Since oops in nmethod can be changed in ChangePointers* closures
-+        // we unregister nmethods from G1 heap, then closures are processed (oops are changed) and finally we register nmethod to G1 again
-+        CodeCache::nmethods_do(unregister_nmethod_g1);
-       } else {
-         CodeCache::nmethods_do(mark_as_scavengable);
-       }
-@@ -545,6 +553,11 @@ void VM_EnhancedRedefineClasses::doit() {
- 
-     Universe::root_oops_do(&oopClosureNoBarrier);
- 
-+    if (UseG1GC) {
-+      // this should work also for other GCs
-+      CodeCache::nmethods_do(register_nmethod_g1);
-+    }
-+
-   }
-   log_trace(redefine, class, obsolete, metadata)("After updating instances");
- 
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 9755944d70b..4c0412d343d 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -116,7 +116,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
- 
-   void rollback();
-   static void mark_as_scavengable(nmethod* nm);
--  static void mark_as_scavengable_g1(nmethod* nm);
-+  static void unregister_nmethod_g1(nmethod* nm);
-+  static void register_nmethod_g1(nmethod* nm);
-   static void unpatch_bytecode(Method* method);
-   static void fix_invoke_method(Method* method);
- 
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0014-Initialize-method-s-_new_version-_old_version-to-NUL.patch

@@ -1,26 +0,0 @@
-From 5c7e5f245f79d7e8575461dab0c356ed74c8e9a3 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Thu, 22 Oct 2020 20:15:20 +0200
-Subject: [PATCH 14/34] Initialize method's _new_version/_old_version to NULL
-
----
- src/hotspot/share/oops/method.cpp | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
-index 1c88511a5fc..ce940cf10a9 100644
---- a/src/hotspot/share/oops/method.cpp
-+++ b/src/hotspot/share/oops/method.cpp
-@@ -91,7 +91,8 @@ Method* Method::allocate(ClassLoaderData* loader_data,
-   return new (loader_data, size, MetaspaceObj::MethodType, THREAD) Method(cm, access_flags);
- }
- 
--Method::Method(ConstMethod* xconst, AccessFlags access_flags) {
-+Method::Method(ConstMethod* xconst, AccessFlags access_flags) :  _new_version(NULL),
-+                                                                 _old_version(NULL) {
-   NoSafepointVerifier no_safepoint;
-   set_constMethod(xconst);
-   set_access_flags(access_flags);
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0015-Clear-dcevm-code-separation.patch

@@ -1,193 +0,0 @@
-From 6ffac6e5064ec6633fdbeb8520333dca00bc6a62 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Fri, 23 Oct 2020 10:20:26 +0200
-Subject: [PATCH 15/34] Clear dcevm code separation
-
----
- src/hotspot/share/classfile/systemDictionary.cpp |  4 ++--
- src/hotspot/share/gc/serial/genMarkSweep.cpp     |  8 +++++---
- src/hotspot/share/interpreter/linkResolver.cpp   | 16 +++++++++++-----
- .../instrumentation/jfrEventClassTransformer.cpp |  2 +-
- src/hotspot/share/oops/instanceKlass.cpp         | 10 ++++++----
- src/hotspot/share/oops/method.cpp                |  2 +-
- .../share/prims/jvmtiGetLoadedClasses.cpp        |  2 +-
- src/hotspot/share/runtime/reflection.cpp         |  2 +-
- 8 files changed, 28 insertions(+), 18 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
-index 8f2b46add4d..9ac6ec96cb5 100644
---- a/src/hotspot/share/classfile/systemDictionary.cpp
-+++ b/src/hotspot/share/classfile/systemDictionary.cpp
-@@ -1241,7 +1241,7 @@ InstanceKlass* SystemDictionary::resolve_from_stream(Symbol* class_name,
-     MutexLocker mu(THREAD, SystemDictionary_lock);
- 
-     Klass* check = find_class(h_name, k->class_loader_data());
--    assert((check == k && !k->is_redefining()) || (k->is_redefining() && check == k->old_version()), "should be present in the dictionary");
-+    assert(check == k && !k->is_redefining() || k->is_redefining() && check == k->old_version(), "should be present in the dictionary");
-   } );
- 
-   return k;
-@@ -2290,7 +2290,7 @@ void SystemDictionary::check_constraints(unsigned int d_hash,
-       // also hold array classes.
- 
-       assert(check->is_instance_klass(), "noninstance in systemdictionary");
--      if ((defining == true) || ((k != check) && k->old_version() != check)) {
-+      if ((defining == true) || (k != check && (!AllowEnhancedClassRedefinition || k->old_version() != check))) {
-         throwException = true;
-         ss.print("loader %s", loader_data->loader_name_and_id());
-         ss.print(" attempted duplicate %s definition for %s. (%s)",
-diff --git a/src/hotspot/share/gc/serial/genMarkSweep.cpp b/src/hotspot/share/gc/serial/genMarkSweep.cpp
-index 1d13c647452..548df01e557 100644
---- a/src/hotspot/share/gc/serial/genMarkSweep.cpp
-+++ b/src/hotspot/share/gc/serial/genMarkSweep.cpp
-@@ -334,7 +334,9 @@ void GenMarkSweep::mark_sweep_phase4() {
- 
-   GenCompactClosure blk;
-   gch->generation_iterate(&blk, true);
--  DcevmSharedGC::copy_rescued_objects_back(MarkSweep::_rescued_oops, true);
--  DcevmSharedGC::clear_rescued_objects_resource(MarkSweep::_rescued_oops);
--  MarkSweep::_rescued_oops = NULL;
-+  if (AllowEnhancedClassRedefinition) {
-+    DcevmSharedGC::copy_rescued_objects_back(MarkSweep::_rescued_oops, true);
-+    DcevmSharedGC::clear_rescued_objects_resource(MarkSweep::_rescued_oops);
-+    MarkSweep::_rescued_oops = NULL;
-+  }
- }
-diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
-index b6e9e0a308d..b2f24ddbeda 100644
---- a/src/hotspot/share/interpreter/linkResolver.cpp
-+++ b/src/hotspot/share/interpreter/linkResolver.cpp
-@@ -282,9 +282,14 @@ void LinkResolver::check_klass_accessibility(Klass* ref_klass, Klass* sel_klass,
-   if (!base_klass->is_instance_klass()) {
-     return;  // no relevant check to do
-   }
--
--  Reflection::VerifyClassAccessResults vca_result =
--    Reflection::verify_class_access(ref_klass->newest_version(), InstanceKlass::cast(base_klass->newest_version()), true);
-+  Klass* refKlassNewest = ref_klass;
-+  Klass* baseKlassNewest = base_klass;
-+  if (AllowEnhancedClassRedefinition) {
-+    refKlassNewest = ref_klass->newest_version();
-+    baseKlassNewest = base_klass->newest_version();
-+  }
-+  Reflection::VerifyClassAccessResults vca_result = 
-+    Reflection::verify_class_access(refKlassNewest, InstanceKlass::cast(baseKlassNewest), true);
-   if (vca_result != Reflection::ACCESS_OK) {
-     ResourceMark rm(THREAD);
-     char* msg = Reflection::verify_class_access_msg(ref_klass,
-@@ -566,7 +571,8 @@ void LinkResolver::check_method_accessability(Klass* ref_klass,
-   // We'll check for the method name first, as that's most likely
-   // to be false (so we'll short-circuit out of these tests).
-   if (sel_method->name() == vmSymbols::clone_name() &&
--      sel_klass->newest_version() == SystemDictionary::Object_klass()->newest_version() &&
-+      ( !AllowEnhancedClassRedefinition && sel_klass == SystemDictionary::Object_klass() ||
-+      AllowEnhancedClassRedefinition && sel_klass->newest_version() == SystemDictionary::Object_klass()->newest_version()) &&
-       resolved_klass->is_array_klass()) {
-     // We need to change "protected" to "public".
-     assert(flags.is_protected(), "clone not protected?");
-@@ -1011,7 +1017,7 @@ void LinkResolver::resolve_field(fieldDescriptor& fd,
-     //     or by the <init> method (in case of an instance field).
-     if (is_put && fd.access_flags().is_final()) {
- 
--      if (sel_klass != current_klass && sel_klass != current_klass->active_version()) {
-+      if (sel_klass != current_klass && (!AllowEnhancedClassRedefinition || sel_klass != current_klass->active_version())) {
-         ResourceMark rm(THREAD);
-         stringStream ss;
-         ss.print("Update to %s final field %s.%s attempted from a different class (%s) than the field's declaring class",
-diff --git a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
-index 96fc139bea3..f7284197c5a 100644
---- a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
-+++ b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
-@@ -1471,7 +1471,7 @@ static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStre
-                              cld,
-                              &cl_info,
-                              ClassFileParser::INTERNAL, // internal visibility
--							 false,
-+                             false,
-                              THREAD);
-   if (HAS_PENDING_EXCEPTION) {
-     log_pending_exception(PENDING_EXCEPTION);
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index 3be3a09ef8f..f8e60941046 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -199,7 +199,9 @@ bool InstanceKlass::has_nest_member(InstanceKlass* k, TRAPS) const {
-         // able to perform that loading but we can't exclude the compiler threads from
-         // executing this logic. But it should actually be impossible to trigger loading here.
-         Klass* k2 = _constants->klass_at(cp_index, THREAD);
--        k2 = k2->newest_version();
-+        if (AllowEnhancedClassRedefinition) {
-+          k2 = k2->newest_version();
-+        }
-         assert(!HAS_PENDING_EXCEPTION || PENDING_EXCEPTION->is_a(SystemDictionary::VirtualMachineError_klass()),
-                "Exceptions should not be possible here");
-         if (k2 == k) {
-@@ -1003,7 +1005,7 @@ bool InstanceKlass::link_class_impl(TRAPS) {
- #endif
-       set_init_state(linked);
-       // (DCEVM) Must check for old version in order to prevent infinite loops.
--      if (JvmtiExport::should_post_class_prepare() && old_version() == NULL /* JVMTI deadlock otherwise */) {
-+      if (JvmtiExport::should_post_class_prepare() && (!AllowEnhancedClassRedefinition || old_version() == NULL) /* JVMTI deadlock otherwise */) {
-         Thread *thread = THREAD;
-         assert(thread->is_Java_thread(), "thread->is_Java_thread()");
-         JvmtiExport::post_class_prepare((JavaThread *) thread, this);
-@@ -1084,7 +1086,7 @@ void InstanceKlass::initialize_impl(TRAPS) {
-     // we might end up throwing IE from link/symbol resolution sites
-     // that aren't expected to throw.  This would wreak havoc.  See 6320309.
-     while ((is_being_initialized() && !is_reentrant_initialization(jt)) 
--            || (old_version() != NULL && InstanceKlass::cast(old_version())->is_being_initialized())) {
-+            || (AllowEnhancedClassRedefinition && old_version() != NULL && InstanceKlass::cast(old_version())->is_being_initialized())) {
-       wait = true;
-       jt->set_class_to_be_initialized(this);
-       ol.wait_uninterruptibly(jt);
-@@ -3782,7 +3784,7 @@ void InstanceKlass::verify_on(outputStream* st) {
- 
-     guarantee(sib->is_klass(), "should be klass");
-     // TODO: (DCEVM) explain
--    guarantee(sib->super() == super || super->newest_version() == SystemDictionary::Object_klass(), "siblings should have same superklass");
-+    guarantee(sib->super() == super || AllowEnhancedClassRedefinition && super->newest_version() == SystemDictionary::Object_klass(), "siblings should have same superklass");
-   }
- 
-   // Verify local interfaces
-diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
-index ce940cf10a9..2d8e5b0256b 100644
---- a/src/hotspot/share/oops/method.cpp
-+++ b/src/hotspot/share/oops/method.cpp
-@@ -2208,7 +2208,7 @@ void Method::ensure_jmethod_ids(ClassLoaderData* loader_data, int capacity) {
- // Add a method id to the jmethod_ids
- jmethodID Method::make_jmethod_id(ClassLoaderData* loader_data, Method* m) {
-   // FIXME: (DCEVM) ???
--  if (m != m->newest_version()) {
-+  if (AllowEnhancedClassRedefinition && m != m->newest_version()) {
-     m = m->newest_version();
-   }
-   ClassLoaderData* cld = loader_data;
-diff --git a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
-index 1c7677f270f..6c12ee64a6e 100644
---- a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
-@@ -75,7 +75,7 @@ public:
-     //         the new version (SystemDictionary stores only new versions). But the LoadedClassesClosure's functionality was
-     //         changed in java8  where jvmtiLoadedClasses collects all classes from all classloaders, therefore we
-     //         must use new versions only.
--    if (k->new_version()==NULL) {
-+    if (AllowEnhancedClassRedefinition && k->new_version()==NULL) {
-       _classStack.push((jclass) _env->jni_reference(Handle(_cur_thread, k->java_mirror())));
-       if (_dictionary_walk) {
-         // Collect array classes this way when walking the dictionary (because array classes are
-diff --git a/src/hotspot/share/runtime/reflection.cpp b/src/hotspot/share/runtime/reflection.cpp
-index 0e7722dba7d..d67457f02ac 100644
---- a/src/hotspot/share/runtime/reflection.cpp
-+++ b/src/hotspot/share/runtime/reflection.cpp
-@@ -628,7 +628,7 @@ bool Reflection::verify_member_access(const Klass* current_class,
-                                       TRAPS) {
- 
-   // (DCEVM) Decide accessibility based on active version
--  if (current_class != NULL) {
-+  if (AllowEnhancedClassRedefinition && current_class != NULL) {
-     current_class = current_class->active_version();
-   }
- 
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0016-Fix-LoadedClassesClosure-fixes-problems-with-remote-.patch

@@ -1,26 +0,0 @@
-From dc675de6ac42819b8536827ea450fcad13a97448 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Wed, 11 Nov 2020 18:45:15 +0100
-Subject: [PATCH 16/34] Fix LoadedClassesClosure - fixes problems with remote
- debugging
-
----
- src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
-index 6c12ee64a6e..2a469555dbd 100644
---- a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
-@@ -75,7 +75,7 @@ public:
-     //         the new version (SystemDictionary stores only new versions). But the LoadedClassesClosure's functionality was
-     //         changed in java8  where jvmtiLoadedClasses collects all classes from all classloaders, therefore we
-     //         must use new versions only.
--    if (AllowEnhancedClassRedefinition && k->new_version()==NULL) {
-+    if (!AllowEnhancedClassRedefinition || k->new_version()==NULL) {
-       _classStack.push((jclass) _env->jni_reference(Handle(_cur_thread, k->java_mirror())));
-       if (_dictionary_walk) {
-         // Collect array classes this way when walking the dictionary (because array classes are
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0018-pre-dcevm15-fix-GC-spaces-originally-in-removed-CMS-.patch

@@ -1,183 +0,0 @@
-From 1d682efa88c716e1849163d5abff3a3367581d16 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Mon, 16 Nov 2020 21:11:19 +0100
-Subject: [PATCH 18/34] pre dcevm15 - fix GC spaces originally in removed CMS
- patch
-
----
- src/hotspot/share/gc/shared/space.cpp            | 16 ++++++++--------
- src/hotspot/share/gc/shared/space.hpp            |  6 +++---
- src/hotspot/share/gc/shared/space.inline.hpp     | 14 ++++++++------
- .../share/prims/jvmtiEnhancedRedefineClasses.cpp |  6 ++----
- 4 files changed, 21 insertions(+), 21 deletions(-)
-
-diff --git a/src/hotspot/share/gc/shared/space.cpp b/src/hotspot/share/gc/shared/space.cpp
-index 875a6dc854f..9772c32c42e 100644
---- a/src/hotspot/share/gc/shared/space.cpp
-+++ b/src/hotspot/share/gc/shared/space.cpp
-@@ -375,11 +375,11 @@ HeapWord* CompactibleSpace::forward_compact_top(size_t size, CompactPoint* cp, H
- }
- 
- HeapWord* CompactibleSpace::forward(oop q, size_t size,
--                                    CompactPoint* cp, HeapWord* compact_top) {
-+                                    CompactPoint* cp, HeapWord* compact_top, bool force_forward) {
-   compact_top = forward_compact_top(size, cp, compact_top);
- 
-   // store the forwarding pointer into the mark word
--  if (cast_from_oop<HeapWord*>(q) != compact_top || (size_t)q->size() != size) {
-+  if (force_forward || cast_from_oop<HeapWord*>(q) != compact_top || (size_t)q->size() != size) {
-     q->forward_to(oop(compact_top));
-     assert(q->is_gc_marked(), "encoding the pointer should preserve the mark");
-   } else {
-@@ -501,7 +501,7 @@ bool CompactibleSpace::must_rescue(oop old_obj, oop new_obj) {
- 
-   } else {
-     assert(space_index(old_obj) != space_index(new_obj), "old_obj and new_obj must be in different spaces");
--    if (tenured_gen->is_in_reserved(new_obj)) {
-+    if (new_in_tenured) {
-       // Must never rescue when moving from the new into the old generation.
-       assert(GenCollectedHeap::heap()->young_gen()->is_in_reserved(old_obj), "old_obj must be in DefNewGeneration");
-       assert(space_index(old_obj) > space_index(new_obj), "must be");
-@@ -824,14 +824,14 @@ void OffsetTableContigSpace::verify() const {
- // Compute the forward sizes and leave out objects whose position could
- // possibly overlap other objects.
- HeapWord* CompactibleSpace::forward_with_rescue(HeapWord* q, size_t size,
--                                                CompactPoint* cp, HeapWord* compact_top) {
-+                                                CompactPoint* cp, HeapWord* compact_top, bool force_forward) {
-   size_t forward_size = size;
- 
-   // (DCEVM) There is a new version of the class of q => different size
-   if (oop(q)->klass()->new_version() != NULL) {
- 
-     size_t new_size = oop(q)->size_given_klass(oop(q)->klass()->new_version());
--    assert(size != new_size, "instances without changed size have to be updated prior to GC run");
-+    // assert(size != new_size, "instances without changed size have to be updated prior to GC run");
-     forward_size = new_size;
-   }
- 
-@@ -845,7 +845,7 @@ HeapWord* CompactibleSpace::forward_with_rescue(HeapWord* q, size_t size,
-     return compact_top;
-   }
- 
--  return forward(oop(q), forward_size, cp, compact_top);
-+  return forward(oop(q), forward_size, cp, compact_top, force_forward);
- }
- 
- // Compute the forwarding addresses for the objects that need to be rescued.
-@@ -861,11 +861,11 @@ HeapWord* CompactibleSpace::forward_rescued(CompactPoint* cp, HeapWord* compact_
-       // (DCEVM) There is a new version of the class of q => different size
-       if (oop(q)->klass()->new_version() != NULL) {
-         size_t new_size = oop(q)->size_given_klass(oop(q)->klass()->new_version());
--        assert(size != new_size, "instances without changed size have to be updated prior to GC run");
-+        // assert(size != new_size, "instances without changed size have to be updated prior to GC run");
-         size = new_size;
-       }
- 
--      compact_top = cp->space->forward(oop(q), size, cp, compact_top);
-+      compact_top = cp->space->forward(oop(q), size, cp, compact_top, true);
-       assert(compact_top <= end(), "must not write over end of space!");
-     }
-     MarkSweep::_rescued_oops->clear();
-diff --git a/src/hotspot/share/gc/shared/space.hpp b/src/hotspot/share/gc/shared/space.hpp
-index c9bfc365f0f..f7648995454 100644
---- a/src/hotspot/share/gc/shared/space.hpp
-+++ b/src/hotspot/share/gc/shared/space.hpp
-@@ -405,7 +405,7 @@ public:
-   virtual void prepare_for_compaction(CompactPoint* cp) = 0;
-   // MarkSweep support phase3
-   DEBUG_ONLY(int space_index(oop obj));
--  bool must_rescue(oop old_obj, oop new_obj);
-+  virtual bool must_rescue(oop old_obj, oop new_obj);
-   HeapWord* rescue(HeapWord* old_obj);
-   virtual void adjust_pointers();
-   // MarkSweep support phase4
-@@ -436,11 +436,11 @@ public:
-   // function of the then-current compaction space, and updates "cp->threshold
-   // accordingly".
-   virtual HeapWord* forward(oop q, size_t size, CompactPoint* cp,
--                    HeapWord* compact_top);
-+                    HeapWord* compact_top, bool force_forward);
-   // (DCEVM) same as forwad, but can rescue objects. Invoked only during
-   // redefinition runs
-   HeapWord* forward_with_rescue(HeapWord* q, size_t size, CompactPoint* cp,
--                                HeapWord* compact_top);
-+                                HeapWord* compact_top, bool force_forward);
- 
-   HeapWord* forward_rescued(CompactPoint* cp, HeapWord* compact_top);
- 
-diff --git a/src/hotspot/share/gc/shared/space.inline.hpp b/src/hotspot/share/gc/shared/space.inline.hpp
-index 5a93e93471b..fa645423685 100644
---- a/src/hotspot/share/gc/shared/space.inline.hpp
-+++ b/src/hotspot/share/gc/shared/space.inline.hpp
-@@ -163,6 +163,8 @@ inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* c
-   HeapWord* cur_obj = space->bottom();
-   HeapWord* scan_limit = space->scan_limit();
- 
-+  bool force_forward = false;
-+
-   while (cur_obj < scan_limit) {
-     assert(!space->scanned_block_is_obj(cur_obj) ||
-            oop(cur_obj)->mark_raw().is_marked() || oop(cur_obj)->mark_raw().is_unlocked() ||
-@@ -174,14 +176,15 @@ inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* c
-       size_t size = space->scanned_block_size(cur_obj);
- 
-       if (redefinition_run) {
--        compact_top = cp->space->forward_with_rescue(cur_obj, size, cp, compact_top);
-+        compact_top = cp->space->forward_with_rescue(cur_obj, size, cp, compact_top, force_forward);
-         if (first_dead == NULL && oop(cur_obj)->is_gc_marked()) {
-           /* Was moved (otherwise, forward would reset mark),
-              set first_dead to here */
-           first_dead = cur_obj;
-+          force_forward = true;
-         }
-       } else {
--        compact_top = cp->space->forward(oop(cur_obj), size, cp, compact_top);
-+        compact_top = cp->space->forward(oop(cur_obj), size, cp, compact_top, false);
-       }
- 
-       cur_obj += size;
-@@ -197,9 +200,9 @@ inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* c
- 
-       // see if we might want to pretend this object is alive so that
-       // we don't have to compact quite as often.
--      if (cur_obj == compact_top && dead_spacer.insert_deadspace(cur_obj, end)) {
-+      if (!redefinition_run && cur_obj == compact_top && dead_spacer.insert_deadspace(cur_obj, end)) {
-         oop obj = oop(cur_obj);
--        compact_top = cp->space->forward(obj, obj->size(), cp, compact_top);
-+        compact_top = cp->space->forward(obj, obj->size(), cp, compact_top, force_forward);
-         end_of_live = end;
-       } else {
-         // otherwise, it really is a free region.
-@@ -362,8 +365,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
-       Prefetch::write(compaction_top, copy_interval);
- 
-       // copy object and reinit its mark
--      assert(cur_obj != compaction_top || oop(cur_obj)->klass()->new_version() != NULL,
--             "everything in this pass should be moving");
-+      assert(redefinition_run || cur_obj != compaction_top, "everything in this pass should be moving");
-       if (redefinition_run && oop(cur_obj)->klass()->new_version() != NULL) {
-         Klass* new_version = oop(cur_obj)->klass()->new_version();
-         if (new_version->update_information() == NULL) {
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 718426f2819..1da6661dd3e 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -431,13 +431,11 @@ public:
-       Klass* new_klass = obj->klass()->new_version();
- 
-       if (new_klass->update_information() != NULL) {
--        int size_diff = obj->size() - obj->size_given_klass(new_klass);
--
--        // Either new size is bigger or gap is to small to be filled
--        if (size_diff < 0 || (size_diff > 0 && (size_t) size_diff < CollectedHeap::min_fill_size())) {
-+        if (obj->size() - obj->size_given_klass(new_klass) != 0) {
-           // We need an instance update => set back to old klass
-           _needs_instance_update = true;
-         } else {
-+          // Either new size is bigger or gap is to small to be filled
-           oop src = obj;
-           if (new_klass->is_copying_backwards()) {
-             copy_to_tmp(obj);
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0019-dcevm15-fix-java15-patch-compilation-issues.patch

@@ -1,942 +0,0 @@
-From 297f564f6af79fb824f5b4e9119f1d3d0c827fb0 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Mon, 16 Nov 2020 20:20:12 +0100
-Subject: [PATCH 19/34] dcevm15 - fix java15 patch compilation issues
-
----
- .../share/classfile/classFileParser.hpp       |   8 +-
- .../share/classfile/classLoaderData.cpp       |   2 +-
- src/hotspot/share/classfile/dictionary.hpp    |  10 +-
- src/hotspot/share/classfile/javaClasses.hpp   |   2 +
- .../share/gc/g1/g1FullGCCompactTask.cpp       |   4 +-
- .../share/gc/g1/g1FullGCCompactionPoint.cpp   |   8 +-
- .../share/gc/g1/g1FullGCPrepareTask.cpp       |   4 +-
- src/hotspot/share/gc/shared/dcevmSharedGC.cpp |  14 +-
- src/hotspot/share/gc/shared/dcevmSharedGC.hpp |   2 +-
- src/hotspot/share/gc/shared/gcConfig.cpp      |   2 +-
- src/hotspot/share/gc/shared/space.cpp         |   4 +-
- .../share/interpreter/linkResolver.cpp        |   2 +-
- src/hotspot/share/oops/instanceKlass.cpp      |  17 ++-
- src/hotspot/share/oops/instanceKlass.hpp      |   1 +
- src/hotspot/share/oops/klass.cpp              |   8 +-
- src/hotspot/share/prims/jvm.cpp               |   2 +
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 129 +++++++++---------
- .../prims/jvmtiEnhancedRedefineClasses.hpp    |  14 +-
- src/hotspot/share/prims/jvmtiEnv.cpp          |  11 +-
- .../share/prims/jvmtiRedefineClasses.cpp      |   1 +
- src/hotspot/share/prims/methodHandles.hpp     |   3 +
- src/hotspot/share/runtime/arguments.cpp       |  22 +--
- src/hotspot/share/runtime/mutexLocker.cpp     |   2 +-
- 23 files changed, 159 insertions(+), 113 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/classFileParser.hpp b/src/hotspot/share/classfile/classFileParser.hpp
-index e5761e61767..0d266b9047e 100644
---- a/src/hotspot/share/classfile/classFileParser.hpp
-+++ b/src/hotspot/share/classfile/classFileParser.hpp
-@@ -150,9 +150,6 @@ class ClassFileParser {
-   const intArray* _method_ordering;
-   GrowableArray<Method*>* _all_mirandas;
- 
--  // Enhanced class redefinition
--  const bool _pick_newest;
--
-   enum { fixed_buffer_size = 128 };
-   u_char _linenumbertable_buffer[fixed_buffer_size];
- 
-@@ -206,6 +203,9 @@ class ClassFileParser {
-   bool _has_vanilla_constructor;
-   int _max_bootstrap_specifier_index;  // detects BSS values
- 
-+  // (DCEVM) Enhanced class redefinition
-+  const bool _pick_newest;
-+
-   void parse_stream(const ClassFileStream* const stream, TRAPS);
- 
-   void mangle_hidden_class_name(InstanceKlass* const ik);
-@@ -582,7 +582,7 @@ class ClassFileParser {
-   ClassLoaderData* loader_data() const { return _loader_data; }
-   const Symbol* class_name() const { return _class_name; }
-   const InstanceKlass* super_klass() const { return _super_klass; }
--  Array<Klass*>* local_interfaces() const { return _local_interfaces; }
-+  Array<InstanceKlass*>* local_interfaces() const { return _local_interfaces; }
- 
-   ReferenceType reference_type() const { return _rt; }
-   AccessFlags access_flags() const { return _access_flags; }
-diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
-index 4d64c6b454a..aadcd50ef4a 100644
---- a/src/hotspot/share/classfile/classLoaderData.cpp
-+++ b/src/hotspot/share/classfile/classLoaderData.cpp
-@@ -597,7 +597,7 @@ void ClassLoaderData::exchange_holders(ClassLoaderData* cld) {
-   oop holder_oop = _holder.peek();
-   _holder.replace(cld->_holder.peek());
-   cld->_holder.replace(holder_oop);
--  WeakHandle<vm_class_loader_data> exchange = _holder;
-+  WeakHandle<vm_weak_data> exchange = _holder;
-   _holder = cld->_holder;
-   cld->_holder = exchange;
- }
-diff --git a/src/hotspot/share/classfile/dictionary.hpp b/src/hotspot/share/classfile/dictionary.hpp
-index 114a983e783..a50f4ff84d2 100644
---- a/src/hotspot/share/classfile/dictionary.hpp
-+++ b/src/hotspot/share/classfile/dictionary.hpp
-@@ -84,6 +84,11 @@ public:
-   void print_on(outputStream* st) const;
-   void verify();
- 
-+  // (DCEVM) Enhanced class redefinition
-+  bool update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass);
-+
-+  void rollback_redefinition();
-+
-  private:
-   DictionaryEntry* new_entry(unsigned int hash, InstanceKlass* klass);
- 
-@@ -106,11 +111,6 @@ public:
- 
-   void free_entry(DictionaryEntry* entry);
- 
--  // Enhanced class redefinition
--  bool update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass);
--
--  void rollback_redefinition();
--
-   // (DCEVM) return old class if redefining in AllowEnhancedClassRedefinition, otherwise return "k"
-   static InstanceKlass* old_if_redefined(InstanceKlass* k) {
-     return (k != NULL && k->is_redefining()) ? ((InstanceKlass* )k->old_version()) : k;
-diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
-index a68c5139151..9abf2e1d105 100644
---- a/src/hotspot/share/classfile/javaClasses.hpp
-+++ b/src/hotspot/share/classfile/javaClasses.hpp
-@@ -255,7 +255,9 @@ class java_lang_Class : AllStatic {
-   static void set_init_lock(oop java_class, oop init_lock);
-   static void set_protection_domain(oop java_class, oop protection_domain);
-   static void set_class_loader(oop java_class, oop class_loader);
-+ public: // DCEVM
-   static void set_component_mirror(oop java_class, oop comp_mirror);
-+ private:
-   static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain,
-                                        Handle classData, TRAPS);
-   static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain, TRAPS);
-diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
-index f70f4606dc8..a22ed48560d 100644
---- a/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
-+++ b/src/hotspot/share/gc/g1/g1FullGCCompactTask.cpp
-@@ -157,14 +157,14 @@ void G1FullGCCompactTask::serial_compaction_dcevm() {
- 
- size_t G1FullGCCompactTask::G1CompactRegionClosureDcevm::apply(oop obj) {
-   size_t size = obj->size();
--  HeapWord* destination = (HeapWord*)obj->forwardee();
-+  HeapWord* destination = cast_from_oop<HeapWord*>(obj->forwardee());
-   if (destination == NULL) {
-     // Object not moving
-     return size;
-   }
- 
-   // copy object and reinit its mark
--  HeapWord* obj_addr = (HeapWord*) obj;
-+  HeapWord* obj_addr = cast_from_oop<HeapWord*>(obj);
- 
-   if (!_rescue_oops_it->at_end() && **_rescue_oops_it == obj_addr) {
-     ++(*_rescue_oops_it);
-diff --git a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
-index 1e49571c999..755935a2c91 100644
---- a/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
-+++ b/src/hotspot/share/gc/g1/g1FullGCCompactionPoint.cpp
-@@ -174,7 +174,7 @@ void G1FullGCCompactionPoint::forward_dcevm(oop object, size_t size, bool force_
-   assert(_current_region != NULL, "Must have been initialized");
- 
-   // Store a forwarding pointer if the object should be moved.
--  if ((HeapWord*)object != _compaction_top || force_forward) {
-+  if (cast_from_oop<HeapWord*>(object) != _compaction_top || force_forward) {
-     object->forward_to(oop(_compaction_top));
-   } else {
-     if (object->forwardee() != NULL) {
-@@ -188,11 +188,11 @@ void G1FullGCCompactionPoint::forward_dcevm(oop object, size_t size, bool force_
-     } else {
-       // Make sure object has the correct mark-word set or that it will be
-       // fixed when restoring the preserved marks.
--      assert(object->mark_raw() == markOopDesc::prototype_for_object(object) || // Correct mark
--             object->mark_raw()->must_be_preserved(object) || // Will be restored by PreservedMarksSet
-+      assert(object->mark_raw() == markWord::prototype_for_klass(object->klass()) || // Correct mark
-+             object->mark_must_be_preserved() || // Will be restored by PreservedMarksSet
-              (UseBiasedLocking && object->has_bias_pattern_raw()), // Will be restored by BiasedLocking
-              "should have correct prototype obj: " PTR_FORMAT " mark: " PTR_FORMAT " prototype: " PTR_FORMAT,
--             p2i(object), p2i(object->mark_raw()), p2i(markOopDesc::prototype_for_object(object)));
-+             p2i(object), object->mark_raw().value(), markWord::prototype_for_klass(object->klass()).value());
-     }
-     assert(object->forwardee() == NULL, "should be forwarded to NULL");
-   }
-diff --git a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
-index a45681b60cf..2f06b9617e4 100644
---- a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
-+++ b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
-@@ -269,7 +269,7 @@ size_t G1FullGCPrepareTask::G1PrepareCompactLiveClosureDcevm::apply(oop object)
-   HeapWord* compact_top = _cp->forward_compact_top(forward_size);
- 
-   if (compact_top == NULL || must_rescue(object, oop(compact_top))) {
--    _cp->rescued_oops()->append((HeapWord*)object);
-+    _cp->rescued_oops()->append(cast_from_oop<HeapWord*>(object));
-   } else {
-     _cp->forward_dcevm(object, forward_size, (size != forward_size));
-   }
-@@ -295,7 +295,7 @@ bool G1FullGCPrepareTask::G1PrepareCompactLiveClosureDcevm::must_rescue(oop old_
-   int new_size = old_obj->size_given_klass(oop(old_obj)->klass()->new_version());
-   int original_size = old_obj->size();
- 
--  bool overlap = ((HeapWord*)old_obj + original_size < (HeapWord*)new_obj + new_size);
-+  bool overlap = (cast_from_oop<HeapWord*>(old_obj) + original_size < cast_from_oop<HeapWord*>(new_obj) + new_size);
- 
-   return overlap;
- }
-diff --git a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
-index 803e645f843..3dee097f1d3 100644
---- a/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
-+++ b/src/hotspot/share/gc/shared/dcevmSharedGC.cpp
-@@ -58,10 +58,10 @@ void DcevmSharedGC::copy_rescued_objects_back(GrowableArray<HeapWord*>* rescued_
-           DcevmSharedGC::update_fields(rescued_obj, new_obj);
-         } else {
-           rescued_obj->set_klass(new_klass);
--          Copy::aligned_disjoint_words((HeapWord*)rescued_obj, (HeapWord*)new_obj, size);
-+          Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(rescued_obj), cast_from_oop<HeapWord*>(new_obj), size);
-         }
-       } else {
--        Copy::aligned_disjoint_words((HeapWord*)rescued_obj, (HeapWord*)new_obj, size);
-+        Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(rescued_obj), cast_from_oop<HeapWord*>(new_obj), size);
-       }
- 
-       new_obj->init_mark_raw();
-@@ -111,11 +111,11 @@ void DcevmSharedGC::update_fields(oop q, oop new_location) {
- 
-   // Save object somewhere, there is an overlap in fields
-   if (new_klass_oop->is_copying_backwards()) {
--    if (((HeapWord *)q >= (HeapWord *)new_location && (HeapWord *)q < (HeapWord *)new_location + new_size) ||
--        ((HeapWord *)new_location >= (HeapWord *)q && (HeapWord *)new_location < (HeapWord *)q + size)) {
-+    if ((cast_from_oop<HeapWord*>(q) >= cast_from_oop<HeapWord*>(new_location) && cast_from_oop<HeapWord*>(q) < cast_from_oop<HeapWord*>(new_location) + new_size) ||
-+        (cast_from_oop<HeapWord*>(new_location) >= cast_from_oop<HeapWord*>(q) && cast_from_oop<HeapWord*>(new_location) < cast_from_oop<HeapWord*>(q) + size)) {
-        tmp = NEW_RESOURCE_ARRAY(HeapWord, size);
-        q = (oop) tmp;
--       Copy::aligned_disjoint_words((HeapWord*)tmp_obj, (HeapWord*)q, size);
-+       Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(tmp_obj), cast_from_oop<HeapWord*>(q), size);
-     }
-   }
- 
-@@ -131,13 +131,13 @@ void DcevmSharedGC::update_fields(oop q, oop new_location) {
- 
- void DcevmSharedGC::update_fields(oop new_location, oop tmp_obj, int *cur) {
-   assert(cur != NULL, "just checking");
--  char* to = (char*)(HeapWord*)new_location;
-+  char* to = (char*)cast_from_oop<HeapWord*>(new_location);
-   while (*cur != 0) {
-     int size = *cur;
-     if (size > 0) {
-       cur++;
-       int offset = *cur;
--      HeapWord* from = (HeapWord*)(((char *)(HeapWord*)tmp_obj) + offset);
-+      HeapWord* from = (HeapWord*)(((char *)cast_from_oop<HeapWord*>(tmp_obj)) + offset);
-       if (size == HeapWordSize) {
-         *((HeapWord*)to) = *from;
-       } else if (size == HeapWordSize * 2) {
-diff --git a/src/hotspot/share/gc/shared/dcevmSharedGC.hpp b/src/hotspot/share/gc/shared/dcevmSharedGC.hpp
-index e2ef0171fb2..a4e27e00280 100644
---- a/src/hotspot/share/gc/shared/dcevmSharedGC.hpp
-+++ b/src/hotspot/share/gc/shared/dcevmSharedGC.hpp
-@@ -29,7 +29,7 @@
- #include "gc/shared/genOopClosures.hpp"
- #include "gc/shared/taskqueue.hpp"
- #include "memory/iterator.hpp"
--#include "oops/markOop.hpp"
-+#include "oops/markWord.hpp"
- #include "oops/oop.hpp"
- #include "runtime/timer.hpp"
- #include "utilities/growableArray.hpp"
-diff --git a/src/hotspot/share/gc/shared/gcConfig.cpp b/src/hotspot/share/gc/shared/gcConfig.cpp
-index f01d64d1434..5c1a09390f1 100644
---- a/src/hotspot/share/gc/shared/gcConfig.cpp
-+++ b/src/hotspot/share/gc/shared/gcConfig.cpp
-@@ -100,7 +100,7 @@ void GCConfig::fail_if_non_included_gc_is_selected() {
- void GCConfig::select_gc_ergonomically() {
-   if (AllowEnhancedClassRedefinition && !UseG1GC) {
-     // Enhanced class redefinition only supports serial GC at the moment
--    FLAG_SET_ERGO(bool, UseSerialGC, true);
-+    FLAG_SET_ERGO(UseSerialGC, true);
-   } else if (os::is_server_class_machine()) {
- #if INCLUDE_G1GC
-     FLAG_SET_ERGO_IF_DEFAULT(UseG1GC, true);
-diff --git a/src/hotspot/share/gc/shared/space.cpp b/src/hotspot/share/gc/shared/space.cpp
-index 9772c32c42e..e8e3d7884c2 100644
---- a/src/hotspot/share/gc/shared/space.cpp
-+++ b/src/hotspot/share/gc/shared/space.cpp
-@@ -440,7 +440,7 @@ int CompactibleSpace::space_index(oop obj) {
-     index++;
-   }
- 
--  tty->print_cr("could not compute space_index for %08xh", (HeapWord*)obj);
-+  tty->print_cr("could not compute space_index for %08xh", cast_from_oop<HeapWord*>(obj));
-   index = 0;
- 
-   Generation* gen = heap->old_gen();
-@@ -485,7 +485,7 @@ bool CompactibleSpace::must_rescue(oop old_obj, oop new_obj) {
-   bool new_in_tenured = tenured_gen->is_in_reserved(new_obj);
-   if (old_in_tenured == new_in_tenured) {
-     // Rescue if object may overlap with a higher memory address.
--    bool overlap = ((HeapWord*)old_obj + original_size < (HeapWord*)new_obj + new_size);
-+    bool overlap = (cast_from_oop<HeapWord*>(old_obj) + original_size < cast_from_oop<HeapWord*>(new_obj) + new_size);
-     if (old_in_tenured) {
-       // Old and new address are in same space, so just compare the address.
-       // Must rescue if object moves towards the top of the space.
-diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
-index b2f24ddbeda..9daeeb70b34 100644
---- a/src/hotspot/share/interpreter/linkResolver.cpp
-+++ b/src/hotspot/share/interpreter/linkResolver.cpp
-@@ -1031,7 +1031,7 @@ void LinkResolver::resolve_field(fieldDescriptor& fd,
-         assert(m != NULL, "information about the current method must be available for 'put' bytecodes");
-         bool is_initialized_static_final_update = (byte == Bytecodes::_putstatic &&
-                                                    fd.is_static() &&
--                                                   !(m()->is_static_initializer() || m()->name() == vmSymbols::ha_class_initializer_name()));
-+                                                   !(m->is_static_initializer() || m->name() == vmSymbols::ha_class_initializer_name()));
-         bool is_initialized_instance_final_update = ((byte == Bytecodes::_putfield || byte == Bytecodes::_nofast_putfield) &&
-                                                      !fd.is_static() &&
-                                                      !m->is_object_initializer());
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index f8e60941046..5e40d78a87e 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -1316,7 +1316,7 @@ void InstanceKlass::init_implementor() {
- // (DCEVM) - init_implementor() for dcevm
- void InstanceKlass::init_implementor_from_redefine() {
-   assert(is_interface(), "not interface");
--  Klass** addr = adr_implementor();
-+  Klass* volatile* addr = adr_implementor();
-   assert(addr != NULL, "null addr");
-   if (addr != NULL) {
-     *addr = NULL;
-@@ -1659,6 +1659,21 @@ void InstanceKlass::methods_do(void f(Method* method)) {
-   }
- }
- 
-+void InstanceKlass::methods_do(void f(Method* method, TRAPS), TRAPS) {
-+  // Methods aren't stable until they are loaded.  This can be read outside
-+  // a lock through the ClassLoaderData for profiling
-+  if (!is_loaded()) {
-+    return;
-+  }
-+
-+  int len = methods()->length();
-+  for (int index = 0; index < len; index++) {
-+    Method* m = methods()->at(index);
-+    assert(m->is_method(), "must be method");
-+    f(m, CHECK);
-+  }
-+}
-+
- //  (DCEVM) Update information contains mapping of fields from old class to the new class.
- //  Info is stored on HEAP, you need to call clear_update_information to free the space.
- void InstanceKlass::store_update_information(GrowableArray<int> &values) {
-diff --git a/src/hotspot/share/oops/instanceKlass.hpp b/src/hotspot/share/oops/instanceKlass.hpp
-index 6ead9426728..b56d42cb177 100644
---- a/src/hotspot/share/oops/instanceKlass.hpp
-+++ b/src/hotspot/share/oops/instanceKlass.hpp
-@@ -1069,6 +1069,7 @@ public:
-   void clear_update_information();
- 
-   void methods_do(void f(Method* method));
-+  void methods_do(void f(Method* method, TRAPS), TRAPS);
-   void array_klasses_do(void f(Klass* k));
-   void array_klasses_do(void f(Klass* k, TRAPS), TRAPS);
- 
-diff --git a/src/hotspot/share/oops/klass.cpp b/src/hotspot/share/oops/klass.cpp
-index 352d8f84631..88f5ec9ba4a 100644
---- a/src/hotspot/share/oops/klass.cpp
-+++ b/src/hotspot/share/oops/klass.cpp
-@@ -200,13 +200,13 @@ void* Klass::operator new(size_t size, ClassLoaderData* loader_data, size_t word
- Klass::Klass(KlassID id) : _id(id),
-                            _java_mirror(NULL),
-                            _prototype_header(markWord::prototype()),
--                           _shared_class_path_index(-1),
--                           _new_version(NULL),
-                            _old_version(NULL),
-+                           _new_version(NULL),
-+                           _redefinition_flags(Klass::NoRedefinition),
-                            _is_redefining(false),
-+                           _update_information(NULL),
-                            _is_copying_backwards(false),
--                           _redefinition_flags(Klass::NoRedefinition),
--                           _update_information(NULL) {
-+                           _shared_class_path_index(-1) {
-   CDS_ONLY(_shared_class_flags = 0;)
-   CDS_JAVA_HEAP_ONLY(_archived_mirror = 0;)
-   _primary_supers[0] = this;
-diff --git a/src/hotspot/share/prims/jvm.cpp b/src/hotspot/share/prims/jvm.cpp
-index 333b65ccfc1..13bcac352fb 100644
---- a/src/hotspot/share/prims/jvm.cpp
-+++ b/src/hotspot/share/prims/jvm.cpp
-@@ -1054,6 +1054,7 @@ static jclass jvm_lookup_define_class(JNIEnv *env, jclass lookup, const char *na
-                                                       class_loader,
-                                                       protection_domain,
-                                                       &st,
-+                                                      NULL,
-                                                       CHECK_NULL);
- 
-     if (log_is_enabled(Debug, class, resolve) && defined_k != NULL) {
-@@ -1074,6 +1075,7 @@ static jclass jvm_lookup_define_class(JNIEnv *env, jclass lookup, const char *na
-                                                class_loader,
-                                                &st,
-                                                cl_info,
-+                                               NULL,
-                                                CHECK_NULL);
-     if (defined_k == NULL) {
-       THROW_MSG_0(vmSymbols::java_lang_Error(), "Failure to define a hidden class");
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 1da6661dd3e..619e3988e3a 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -24,11 +24,14 @@
- 
- #include "precompiled.hpp"
- #include "aot/aotLoader.hpp"
-+#include "classfile/classFileParser.hpp"
- #include "classfile/classFileStream.hpp"
- #include "classfile/metadataOnStackMark.hpp"
- #include "classfile/systemDictionary.hpp"
- #include "classfile/verifier.hpp"
- #include "classfile/dictionary.hpp"
-+#include "classfile/classLoaderDataGraph.hpp"
-+#include "interpreter/linkResolver.hpp"
- #include "interpreter/oopMapCache.hpp"
- #include "interpreter/rewriter.hpp"
- #include "logging/logStream.hpp"
-@@ -37,17 +40,22 @@
- #include "memory/resourceArea.hpp"
- #include "memory/iterator.inline.hpp"
- #include "oops/fieldStreams.hpp"
-+#include "oops/fieldStreams.inline.hpp"
- #include "oops/klassVtable.hpp"
- #include "oops/oop.inline.hpp"
- #include "oops/constantPool.inline.hpp"
-+#include "oops/metadata.hpp"
-+#include "oops/methodData.hpp"
- #include "prims/jvmtiImpl.hpp"
- #include "prims/jvmtiClassFileReconstituter.hpp"
- #include "prims/jvmtiEnhancedRedefineClasses.hpp"
- #include "prims/methodComparator.hpp"
- #include "prims/resolvedMethodTable.hpp"
-+#include "prims/methodHandles.hpp"
- #include "runtime/deoptimization.hpp"
- #include "runtime/jniHandles.inline.hpp"
- #include "runtime/relocator.hpp"
-+#include "runtime/fieldDescriptor.hpp"
- #include "runtime/fieldDescriptor.inline.hpp"
- #include "utilities/bitMap.inline.hpp"
- #include "prims/jvmtiThreadState.inline.hpp"
-@@ -55,6 +63,8 @@
- #include "oops/constantPool.inline.hpp"
- #include "gc/g1/g1CollectedHeap.hpp"
- #include "gc/shared/dcevmSharedGC.hpp"
-+#include "gc/shared/scavengableNMethods.hpp"
-+#include "ci/ciObjectFactory.hpp"
- 
- Array<Method*>* VM_EnhancedRedefineClasses::_old_methods = NULL;
- Array<Method*>* VM_EnhancedRedefineClasses::_new_methods = NULL;
-@@ -66,6 +76,7 @@ int         VM_EnhancedRedefineClasses::_matching_methods_length = 0;
- int         VM_EnhancedRedefineClasses::_deleted_methods_length  = 0;
- int         VM_EnhancedRedefineClasses::_added_methods_length    = 0;
- Klass*      VM_EnhancedRedefineClasses::_the_class_oop = NULL;
-+u8        VM_EnhancedRedefineClasses::_id_counter = 0;
- 
- //
- // Create new instance of enhanced class redefiner.
-@@ -88,6 +99,7 @@ VM_EnhancedRedefineClasses::VM_EnhancedRedefineClasses(jint class_count, const j
-   _class_load_kind = class_load_kind;
-   _res = JVMTI_ERROR_NONE;
-   _any_class_has_resolved_methods = false;
-+  _id = next_id();
- }
- 
- static inline InstanceKlass* get_ik(jclass def) {
-@@ -211,9 +223,7 @@ class FieldCopier : public FieldClosure {
- 
- // TODO: review...
- void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
--  if (!nm->on_scavenge_root_list()) {
--    CodeCache::add_scavenge_root_nmethod(nm);
--  }
-+  ScavengableNMethods::register_nmethod(nm);
- }
- 
- void VM_EnhancedRedefineClasses::unregister_nmethod_g1(nmethod* nm) {
-@@ -414,7 +424,7 @@ public:
-       _tmp_obj_size = size;
-       _tmp_obj = (oop)resource_allocate_bytes(size * HeapWordSize);
-     }
--    Copy::aligned_disjoint_words((HeapWord*)o, (HeapWord*)_tmp_obj, size);
-+    Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(o), cast_from_oop<HeapWord*>(_tmp_obj), size);
-   }
- 
-   virtual void do_object(oop obj) {
-@@ -505,9 +515,6 @@ void VM_EnhancedRedefineClasses::doit() {
-     ClearCpoolCacheAndUnpatch clear_cpool_cache(thread);
-     ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
- 
--
--    // SystemDictionary::methods_do(fix_invoke_method);
--
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-     bool trace_name_printed = false;
-@@ -564,8 +571,8 @@ void VM_EnhancedRedefineClasses::doit() {
-     InstanceKlass* old = InstanceKlass::cast(cur->old_version());
- 
-     // Swap marks to have same hashcodes
--    markOop cur_mark = cur->prototype_header();
--    markOop old_mark = old->prototype_header();
-+    markWord cur_mark = cur->prototype_header();
-+    markWord old_mark = old->prototype_header();
-     cur->set_prototype_header(old_mark);
-     old->set_prototype_header(cur_mark);
- 
-@@ -579,14 +586,14 @@ void VM_EnhancedRedefineClasses::doit() {
-       // Revert pool holder for old version of klass (it was updated by one of ours closure!)
-     old->constants()->set_pool_holder(old);
- 
--    Klass* array_klasses = old->array_klasses();
-+    ObjArrayKlass* array_klasses = old->array_klasses();
-     if (array_klasses != NULL) {
-       assert(cur->array_klasses() == NULL, "just checking");
- 
-       // Transfer the array classes, otherwise we might get cast exceptions when casting array types.
-       // Also, set array klasses element klass.
-       cur->set_array_klasses(array_klasses);
--      ObjArrayKlass::cast(array_klasses)->set_element_klass(cur);
-+      array_klasses->set_element_klass(cur);
-       java_lang_Class::release_set_array_klass(cur->java_mirror(), array_klasses);
-       java_lang_Class::set_component_mirror(array_klasses->java_mirror(), cur->java_mirror());
-     }
-@@ -641,11 +648,15 @@ void VM_EnhancedRedefineClasses::doit() {
-   //ClassLoaderDataGraph::classes_do(&clean_weak_method_links);
- 
-   // Disable any dependent concurrent compilations
--  SystemDictionary::notice_modification();
-+  // SystemDictionary::notice_modification();
-+
-+  JvmtiExport::increment_redefinition_count();
- 
-   // Set flag indicating that some invariants are no longer true.
-   // See jvmtiExport.hpp for detailed explanation.
--  JvmtiExport::set_has_redefined_a_class();
-+
-+  // dcevm15: handled by _redefinition_count
-+  // JvmtiExport::set_has_redefined_a_class();
- 
- #ifdef PRODUCT
-   if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
-@@ -718,7 +729,7 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
-   }
- 
-   // Cannot redefine or retransform an anonymous class.
--  if (InstanceKlass::cast(k)->is_anonymous()) {
-+  if (InstanceKlass::cast(k)->is_unsafe_anonymous()) {
-     return false;
-   }
-   return true;
-@@ -804,22 +815,30 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
- 
-     InstanceKlass* k;
- 
--    if (InstanceKlass::cast(the_class)->is_anonymous()) {
--      const InstanceKlass* host_class = the_class->host_klass();
-+    if (InstanceKlass::cast(the_class)->is_unsafe_anonymous()) {
-+      const InstanceKlass* host_class = the_class->unsafe_anonymous_host();
- 
-       // Make sure it's the real host class, not another anonymous class.
--      while (host_class != NULL && host_class->is_anonymous()) {
--        host_class = host_class->host_klass();
-+      while (host_class != NULL && host_class->is_unsafe_anonymous()) {
-+        host_class = host_class->unsafe_anonymous_host();
-       }
- 
-+      ClassLoadInfo cl_info(protection_domain,
-+                            host_class,
-+                            NULL,     // dynamic_nest_host
-+                            NULL,     // cp_patches
-+                            Handle(), // classData
-+                            false,    // is_hidden
-+                            false,    // is_strong_hidden
-+                            true);    // FIXME: check if correct. can_access_vm_annotations
-+
-       k = SystemDictionary::parse_stream(the_class_sym,
-                                          the_class_loader,
--                                         protection_domain,
-                                          &st,
--                                         host_class,
-+                                         cl_info,
-                                          the_class,
--                                         NULL,
-                                          THREAD);
-+
-       k->class_loader_data()->exchange_holders(the_class->class_loader_data());
-       the_class->class_loader_data()->inc_keep_alive();
-     } else {
-@@ -966,7 +985,7 @@ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_
-   // Check interfaces
- 
-   // Interfaces removed?
--  Array<Klass*>* old_interfaces = the_class->transitive_interfaces();
-+  Array<InstanceKlass*>* old_interfaces = the_class->transitive_interfaces();
-   for (i = 0; i < old_interfaces->length(); i++) {
-     InstanceKlass* old_interface = InstanceKlass::cast(old_interfaces->at(i));
-     if (!new_class->implements_interface_any_version(old_interface)) {
-@@ -976,7 +995,7 @@ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_
-   }
- 
-   // Interfaces added?
--  Array<Klass*>* new_interfaces = new_class->transitive_interfaces();
-+  Array<InstanceKlass*>* new_interfaces = new_class->transitive_interfaces();
-   for (i = 0; i<new_interfaces->length(); i++) {
-     if (!the_class->implements_interface_any_version(new_interfaces->at(i))) {
-       result = result | Klass::ModifyClass;
-@@ -1389,8 +1408,8 @@ void VM_EnhancedRedefineClasses::rollback() {
- // Rewrite faster byte-codes back to their slower equivalent. Undoes rewriting happening in templateTable_xxx.cpp
- // The reason is that once we zero cpool caches, we need to re-resolve all entries again. Faster bytecodes do not
- // do that, they assume that cache entry is resolved already.
--void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
--  RawBytecodeStream bcs(method);
-+void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method, TRAPS) {
-+  RawBytecodeStream bcs(methodHandle(THREAD, method));
-   Bytecodes::Code code;
-   Bytecodes::Code java_code;
-   while (!bcs.is_last_bytecode()) {
-@@ -1454,11 +1473,11 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
-   HandleMark hm(_thread);
-   InstanceKlass *ik = InstanceKlass::cast(k);
- 
--  constantPoolHandle other_cp = constantPoolHandle(ik->constants());
-+  constantPoolHandle other_cp = constantPoolHandle(_thread, ik->constants());
- 
-   // Update host klass of anonymous classes (for example, produced by lambdas) to newest version.
--  if (ik->is_anonymous() && ik->host_klass()->new_version() != NULL) {
--    ik->set_host_klass(InstanceKlass::cast(ik->host_klass()->newest_version()));
-+  if (ik->is_unsafe_anonymous() && ik->unsafe_anonymous_host()->new_version() != NULL) {
-+    ik->set_unsafe_anonymous_host(InstanceKlass::cast(ik->unsafe_anonymous_host()->newest_version()));
-   }
- 
-   // Update implementor if there is only one, in this case implementor() can reference old class
-@@ -1492,7 +1511,18 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
- 
-   // If bytecode rewriting is enabled, we also need to unpatch bytecode to force resolution of zeroed entries
-   if (RewriteBytecodes) {
--    ik->methods_do(unpatch_bytecode);
-+    ik->methods_do(unpatch_bytecode, _thread);
-+  }
-+}
-+
-+u8 VM_EnhancedRedefineClasses::next_id() {
-+  while (true) {
-+    u8 id = _id_counter;
-+    u8 next_id = id + 1;
-+    u8 result = Atomic::cmpxchg(&_id_counter, id, next_id);
-+    if (result == id) {
-+      return next_id;
-+    }
-   }
- }
- 
-@@ -1512,31 +1542,8 @@ void VM_EnhancedRedefineClasses::MethodDataCleaner::do_klass(Klass* k) {
-   }
- }
- 
--void VM_EnhancedRedefineClasses::fix_invoke_method(Method* method) {
--
--  constantPoolHandle other_cp = constantPoolHandle(method->constants());
--
--  for (int i = 0; i < other_cp->length(); i++) {
--    if (other_cp->tag_at(i).is_klass()) {
--      Klass* klass = other_cp->resolved_klass_at(i);
--      if (klass->new_version() != NULL) {
--        // Constant pool entry points to redefined class -- update to the new version
--        other_cp->klass_at_put(i, klass->newest_version());
--      }
--      assert(other_cp->resolved_klass_at(i)->new_version() == NULL, "Must be new klass!");
--    }
--  }
--
--  ConstantPoolCache* cp_cache = other_cp->cache();
--  if (cp_cache != NULL) {
--    cp_cache->clear_entries();
--  }
--
--}
--
- 
--
--void VM_EnhancedRedefineClasses::update_jmethod_ids() {
-+void VM_EnhancedRedefineClasses::update_jmethod_ids(TRAPS) {
-   for (int j = 0; j < _matching_methods_length; ++j) {
-     Method* old_method = _matching_old_methods[j];
-     jmethodID jmid = old_method->find_jmethod_id_or_null();
-@@ -1547,10 +1554,10 @@ void VM_EnhancedRedefineClasses::update_jmethod_ids() {
- 
-     if (jmid != NULL) {
-       // There is a jmethodID, change it to point to the new method
--      methodHandle new_method_h(_matching_new_methods[j]);
-+      methodHandle new_method_h(THREAD, _matching_new_methods[j]);
- 
-       if (old_method->new_version() == NULL) {
--        methodHandle old_method_h(_matching_old_methods[j]);
-+        methodHandle old_method_h(THREAD, _matching_old_methods[j]);
-         jmethodID new_jmethod_id = Method::make_jmethod_id(old_method_h->method_holder()->class_loader_data(), old_method_h());
-         bool result = InstanceKlass::cast(old_method_h->method_holder())->update_jmethod_id(old_method_h(), new_jmethod_id);
-       } else {
-@@ -1887,7 +1894,7 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
- 
-   // track number of methods that are EMCP for add_previous_version() call below
-   check_methods_and_mark_as_obsolete();
--  update_jmethod_ids();
-+  update_jmethod_ids(THREAD);
- 
-   _any_class_has_resolved_methods = the_class->has_resolved_methods() || _any_class_has_resolved_methods;
- 
-@@ -2119,12 +2126,12 @@ jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
- 
-     Handle protection_domain(THREAD, klass->protection_domain());
- 
-+    ClassLoadInfo cl_info(protection_domain);
-+
-     ClassFileParser parser(&st,
-                            klass->name(),
-                            klass->class_loader_data(),
--                           protection_domain,
--                           NULL, // host_klass
--                           NULL, // cp_patches
-+                           &cl_info,
-                            ClassFileParser::INTERNAL, // publicity level
-                            true,
-                            THREAD);
-@@ -2134,7 +2141,7 @@ jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
-       links.append(KlassPair(super_klass, klass));
-     }
- 
--    Array<Klass*>* local_interfaces = parser.local_interfaces();
-+    Array<InstanceKlass*>* local_interfaces = parser.local_interfaces();
-     for (int j = 0; j < local_interfaces->length(); j++) {
-       Klass* iface = local_interfaces->at(j);
-       if (iface != NULL && _affected_klasses->contains(iface)) {
-@@ -2157,7 +2164,7 @@ jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
-         links.append(KlassPair(super_klass, klass));
-       }
- 
--      Array<Klass*>* local_interfaces = klass->local_interfaces();
-+      Array<InstanceKlass*>* local_interfaces = klass->local_interfaces();
-       for (int j = 0; j < local_interfaces->length(); j++) {
-         Klass* interfaceKlass = local_interfaces->at(j);
-         if (_affected_klasses->contains(interfaceKlass)) {
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 4c0412d343d..0066088b3b0 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -32,7 +32,7 @@
- #include "memory/resourceArea.hpp"
- #include "oops/objArrayKlass.hpp"
- #include "oops/objArrayOop.hpp"
--#include "gc/shared/vmGCOperations.hpp"
-+#include "gc/shared/gcVMOperations.hpp"
- #include "../../../java.base/unix/native/include/jni_md.h"
- 
- //
-@@ -59,6 +59,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   static int             _deleted_methods_length;
-   static int             _added_methods_length;
-   static Klass*          _the_class_oop;
-+  static u8              _id_counter;
- 
-   // The instance fields are used to pass information from
-   // doit_prologue() to doit() and doit_epilogue().
-@@ -91,6 +92,9 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   elapsedTimer  _timer_heap_iterate;
-   elapsedTimer  _timer_heap_full_gc;
- 
-+  // Redefinition id used by JFR
-+  u8 _id;
-+
-   // These routines are roughly in call order unless otherwise noted.
- 
-   // Load and link new classes (either redefined or affected by redefinition - subclass, ...)
-@@ -118,15 +122,14 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   static void mark_as_scavengable(nmethod* nm);
-   static void unregister_nmethod_g1(nmethod* nm);
-   static void register_nmethod_g1(nmethod* nm);
--  static void unpatch_bytecode(Method* method);
--  static void fix_invoke_method(Method* method);
-+  static void unpatch_bytecode(Method* method, TRAPS);
- 
-   // Figure out which new methods match old methods in name and signature,
-   // which methods have been added, and which are no longer present
-   void compute_added_deleted_matching_methods();
- 
-   // Change jmethodIDs to point to the new methods
--  void update_jmethod_ids();
-+  void update_jmethod_ids(TRAPS);
- 
-   // marking methods as old and/or obsolete
-   void check_methods_and_mark_as_obsolete();
-@@ -141,6 +144,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
- 
-   void flush_dependent_code(InstanceKlass* k_h, TRAPS);
- 
-+  u8 next_id();
-+
-   static void check_class(InstanceKlass* k_oop, TRAPS);
- 
-   static void dump_methods();
-@@ -181,6 +186,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
- 
-   bool allow_nested_vm_operations() const        { return true; }
-   jvmtiError check_error()                       { return _res; }
-+  u8 id()                                        { return _id; }
- 
-   // Modifiable test must be shared between IsModifiableClass query
-   // and redefine implementation
-diff --git a/src/hotspot/share/prims/jvmtiEnv.cpp b/src/hotspot/share/prims/jvmtiEnv.cpp
-index b6838ac034d..fba0f48abd7 100644
---- a/src/hotspot/share/prims/jvmtiEnv.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnv.cpp
-@@ -456,20 +456,23 @@ JvmtiEnv::RetransformClasses(jint class_count, const jclass* classes) {
- 
-   EventRetransformClasses event;
-   jvmtiError error;
-+  u8 op_id;
- 
-   if (AllowEnhancedClassRedefinition) {
-     MutexLocker sd_mutex(EnhancedRedefineClasses_lock);
-     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_retransform);
-     VMThread::execute(&op);
-+    op_id = op.id();
-     error = (op.check_error());
-   } else {
-     VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_retransform);
-     VMThread::execute(&op);
-+    op_id = op.id();
-     error = op.check_error();
-   }
-   if (error == JVMTI_ERROR_NONE) {
-     event.set_classCount(class_count);
--    event.set_redefinitionId(op.id());
-+    event.set_redefinitionId(op_id);
-     event.commit();
-   }
-   return error;
-@@ -484,19 +487,23 @@ JvmtiEnv::RedefineClasses(jint class_count, const jvmtiClassDefinition* class_de
-   EventRedefineClasses event;
-   jvmtiError error;
- 
-+  u8 op_id;
-+
-   if (AllowEnhancedClassRedefinition) {
-     MutexLocker sd_mutex(EnhancedRedefineClasses_lock);
-     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
-     VMThread::execute(&op);
-+    op_id = op.id();
-     error = (op.check_error());
-   } else {
-     VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
-     VMThread::execute(&op);
-+    op_id = op.id();
-     error = op.check_error();
-   }
-   if (error == JVMTI_ERROR_NONE) {
-     event.set_classCount(class_count);
--    event.set_redefinitionId(op.id());
-+    event.set_redefinitionId(op_id);
-     event.commit();
-   }
-   return error;
-diff --git a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
-index a7840848e10..346eac7c431 100644
---- a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
-@@ -1271,6 +1271,7 @@ jvmtiError VM_RedefineClasses::load_new_class_versions(TRAPS) {
-                                                       the_class_loader,
-                                                       &st,
-                                                       cl_info,
-+                                                      NULL,
-                                                       THREAD);
-     // Clear class_being_redefined just to be sure.
-     state->clear_class_being_redefined();
-diff --git a/src/hotspot/share/prims/methodHandles.hpp b/src/hotspot/share/prims/methodHandles.hpp
-index 54f36202a5f..917d31efd77 100644
---- a/src/hotspot/share/prims/methodHandles.hpp
-+++ b/src/hotspot/share/prims/methodHandles.hpp
-@@ -180,6 +180,9 @@ public:
-     assert(ref_kind_is_valid(ref_kind), "");
-     return (ref_kind & 1) != 0;
-   }
-+  static bool ref_kind_is_static(int ref_kind) {
-+    return !ref_kind_has_receiver(ref_kind) && (ref_kind != JVM_REF_newInvokeSpecial);
-+  }
- 
-   static int ref_kind_to_flags(int ref_kind);
- 
-diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index d05a2893498..3a92b8869dc 100644
---- a/src/hotspot/share/runtime/arguments.cpp
-+++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -2128,13 +2128,15 @@ bool Arguments::check_gc_consistency() {
-   // of collectors.
-   uint i = 0;
-   if (UseSerialGC)                       i++;
--  if (UseConcMarkSweepGC)                i++;
--  if (UseParallelGC || UseParallelOldGC) i++;
-+  if (UseParallelGC)                     i++;
-   if (UseG1GC)                           i++;
-+  if (UseEpsilonGC)                      i++;
-+  if (UseZGC)                            i++;
-+  if (UseShenandoahGC)                   i++;
-   if (AllowEnhancedClassRedefinition) {
-     // Must use serial GC. This limitation applies because the instance size changing GC modifications
-     // are only built into the mark and compact algorithm.
--    if ((!UseSerialGC && !UseG1GC) && i >= 1) {
-+    if (!UseSerialGC && !UseG1GC && i >= 1) {
-       jio_fprintf(defaultStream::error_stream(),
-                   "Must use the Serial or G1 GC with enhanced class redefinition.\n");
-       return false;
-@@ -4494,18 +4496,18 @@ void Arguments::setup_hotswap_agent() {
- 
-   // TODO: open it only for org.hotswap.agent module
-   // Use to access java.lang.reflect.Proxy/proxyCache
--  create_numbered_property("jdk.module.addopens", "java.base/java.lang=ALL-UNNAMED", addopens_count++);
-+  create_numbered_module_property("jdk.module.addopens", "java.base/java.lang=ALL-UNNAMED", addopens_count++);
-   // Class of  field java.lang.reflect.Proxy/proxyCache
--  create_numbered_property("jdk.module.addopens", "java.base/jdk.internal.loader=ALL-UNNAMED", addopens_count++);
-+  create_numbered_module_property("jdk.module.addopens", "java.base/jdk.internal.loader=ALL-UNNAMED", addopens_count++);
-   // Use to access java.io.Reader, java.io.InputStream, java.io.FileInputStream
--  create_numbered_property("jdk.module.addopens", "java.base/java.io=ALL-UNNAMED", addopens_count++);
-+  create_numbered_module_property("jdk.module.addopens", "java.base/java.io=ALL-UNNAMED", addopens_count++);
-   // java.beans.Introspector access
--  create_numbered_property("jdk.module.addopens", "java.desktop/java.beans=ALL-UNNAMED", addopens_count++);
-+  create_numbered_module_property("jdk.module.addopens", "java.desktop/java.beans=ALL-UNNAMED", addopens_count++);
-   // java.beans.Introspector access
--  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans=ALL-UNNAMED", addopens_count++);
-+  create_numbered_module_property("jdk.module.addopens", "java.desktop/com.sun.beans=ALL-UNNAMED", addopens_count++);
-   // com.sun.beans.introspect.ClassInfo access
--  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans.introspect=ALL-UNNAMED", addopens_count++);
-+  create_numbered_module_property("jdk.module.addopens", "java.desktop/com.sun.beans.introspect=ALL-UNNAMED", addopens_count++);
-   // com.sun.beans.introspect.util.Cache access
--  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans.util=ALL-UNNAMED", addopens_count++);
-+  create_numbered_module_property("jdk.module.addopens", "java.desktop/com.sun.beans.util=ALL-UNNAMED", addopens_count++);
- 
- }
-diff --git a/src/hotspot/share/runtime/mutexLocker.cpp b/src/hotspot/share/runtime/mutexLocker.cpp
-index 6f982072909..14a3ed730fe 100644
---- a/src/hotspot/share/runtime/mutexLocker.cpp
-+++ b/src/hotspot/share/runtime/mutexLocker.cpp
-@@ -287,7 +287,7 @@ void mutex_init() {
-   def(InitCompleted_lock           , PaddedMonitor, leaf,        true,  _safepoint_check_never);
-   def(VtableStubs_lock             , PaddedMutex  , nonleaf,     true,  _safepoint_check_never);
-   def(Notify_lock                  , PaddedMonitor, nonleaf,     true,  _safepoint_check_always);
--  def(EnhancedRedefineClasses_lock , PaddedMutex  , nonleaf+7,   false, Monitor::_safepoint_check_always);     // for ensuring that class redefinition is not done in parallel
-+  def(EnhancedRedefineClasses_lock , PaddedMutex  , nonleaf+7,   false, _safepoint_check_always);     // for ensuring that class redefinition is not done in parallel
-   def(JNICritical_lock             , PaddedMonitor, nonleaf,     true,  _safepoint_check_always); // used for JNI critical regions
-   def(AdapterHandlerLibrary_lock   , PaddedMutex  , nonleaf,     true,  _safepoint_check_always);
- 
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0020-dcevm15-G1-fixes.patch

@@ -1,25 +0,0 @@
-From 336cab4f72c6e642e3077ea8d1a4860de33f5a4d Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Tue, 17 Nov 2020 17:40:24 +0100
-Subject: [PATCH 20/34] dcevm15 - G1 fixes
-
----
- src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
-index 2f06b9617e4..476728a5d26 100644
---- a/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
-+++ b/src/hotspot/share/gc/g1/g1FullGCPrepareTask.cpp
-@@ -240,7 +240,7 @@ void G1FullGCPrepareTask::prepare_serial_compaction_dcevm() {
- 
-     // collect remaining, not forwarded rescued oops using serial compact point
-     while (cp->last_rescued_oop() < cp->rescued_oops()->length()) {
--      HeapRegion* hr = G1CollectedHeap::heap()->new_region(HeapRegion::GrainBytes / HeapWordSize, false, true);
-+      HeapRegion* hr = G1CollectedHeap::heap()->new_region(HeapRegion::GrainBytes / HeapWordSize, HeapRegionType::Eden, true, G1NUMA::AnyNodeIndex);
-       if (hr == NULL) {
-         vm_exit_out_of_memory(0, OOM_MMAP_ERROR, "G1 - not enough of free regions after redefinition.");
-       }
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0021-dcevm15-Fix-flush-dependent-code.patch

@@ -1,133 +0,0 @@
-From cea4e2cca3c37233c728be7235f8f9d8be136cb5 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Tue, 17 Nov 2020 18:52:57 +0100
-Subject: [PATCH 21/34] dcevm15 - Fix flush dependent code
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 57 +++++++------------
- .../prims/jvmtiEnhancedRedefineClasses.hpp    |  4 +-
- 2 files changed, 25 insertions(+), 36 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 619e3988e3a..efaf11e1666 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -508,7 +508,7 @@ void VM_EnhancedRedefineClasses::doit() {
- 
-   // Deoptimize all compiled code that depends on this class (do only once, because it clears whole cache)
-   // if (_max_redefinition_flags > Klass::ModifyClass) {
--    flush_dependent_code(NULL, thread);
-+    flush_dependent_code(thread);
-   // }
- 
-     // Adjust constantpool caches for all classes that reference methods of the evolved class.
-@@ -647,17 +647,8 @@ void VM_EnhancedRedefineClasses::doit() {
-   //MethodDataCleaner clean_weak_method_links;
-   //ClassLoaderDataGraph::classes_do(&clean_weak_method_links);
- 
--  // Disable any dependent concurrent compilations
--  // SystemDictionary::notice_modification();
--
-   JvmtiExport::increment_redefinition_count();
- 
--  // Set flag indicating that some invariants are no longer true.
--  // See jvmtiExport.hpp for detailed explanation.
--
--  // dcevm15: handled by _redefinition_count
--  // JvmtiExport::set_has_redefined_a_class();
--
- #ifdef PRODUCT
-   if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
- #endif
-@@ -1746,6 +1737,18 @@ void VM_EnhancedRedefineClasses::transfer_old_native_function_registrations(Inst
-   transfer.transfer_registrations(_matching_old_methods, _matching_methods_length);
- }
- 
-+// First step is to walk the code cache for each class redefined and mark
-+// dependent methods.  Wait until all classes are processed to deoptimize everything.
-+void VM_EnhancedRedefineClasses::mark_dependent_code(InstanceKlass* ik) {
-+  assert_locked_or_safepoint(Compile_lock);
-+
-+  // All dependencies have been recorded from startup or this is a second or
-+  // subsequent use of RedefineClasses
-+  if (0 && JvmtiExport::all_dependencies_are_recorded()) {
-+    CodeCache::mark_for_evol_deoptimization(ik);
-+  }
-+}
-+
- // DCEVM - it always deoptimizes everything! (because it is very difficult to find only correct dependencies)
- // Deoptimize all compiled code that depends on this class.
- //
-@@ -1762,33 +1765,21 @@ void VM_EnhancedRedefineClasses::transfer_old_native_function_registrations(Inst
- // subsequent calls to RedefineClasses need only throw away code
- // that depends on the class.
- //
--void VM_EnhancedRedefineClasses::flush_dependent_code(InstanceKlass* k_h, TRAPS) {
-+void VM_EnhancedRedefineClasses::flush_dependent_code(TRAPS) {
-   assert_locked_or_safepoint(Compile_lock);
- 
-   // All dependencies have been recorded from startup or this is a second or
-   // subsequent use of RedefineClasses
-   // FIXME: for now, deoptimize all!
--  if (0 && k_h != NULL && JvmtiExport::all_dependencies_are_recorded()) {
--    CodeCache::flush_evol_dependents_on(k_h);
--    Klass* superCl = k_h->super();
--    // Deoptimize super classes since redefined class can has a new method override
--    while (superCl != NULL && !superCl->is_redefining()) {
--      CodeCache::flush_evol_dependents_on(InstanceKlass::cast(superCl));
--      superCl = superCl->super();
-+  if (0 && JvmtiExport::all_dependencies_are_recorded()) {
-+    int deopt = CodeCache::mark_dependents_for_evol_deoptimization();
-+    log_debug(redefine, class, nmethod)("Marked %d dependent nmethods for deopt", deopt);
-+    if (deopt != 0) {
-+      CodeCache::flush_evol_dependents();
-     }
-   } else {
--    CodeCache::mark_all_nmethods_for_deoptimization();
--
--    ResourceMark rm(THREAD);
--    DeoptimizationMarker dm;
--
--    // Deoptimize all activations depending on marked nmethods
--    Deoptimization::deoptimize_dependents();
--
--    // Make the dependent methods not entrant
--    CodeCache::make_marked_nmethods_not_entrant();
--
--    // From now on we know that the dependency information is complete
-+    CodeCache::mark_all_nmethods_for_evol_deoptimization();
-+    CodeCache::flush_evol_dependents();
-     JvmtiExport::set_all_dependencies_are_recorded(true);
-   }
- }
-@@ -1881,11 +1872,7 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
-   JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints();
-   jvmti_breakpoints.clearall_in_class_at_safepoint(the_class);
- 
--  // DCEVM Deoptimization is always for whole java world, call only once after all classes are redefined
--  // Deoptimize all compiled code that depends on this class
--//  if (_max_redefinition_flags <= Klass::ModifyClass) {
--//    flush_dependent_code(the_class, THREAD);
--//  }
-+  mark_dependent_code(the_class);
- 
-   _old_methods = the_class->methods();
-   _new_methods = new_class->methods();
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 0066088b3b0..bd5e7d153be 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -142,7 +142,9 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   // and in all direct and indirect subclasses.
-   void increment_class_counter(InstanceKlass *ik, TRAPS);
- 
--  void flush_dependent_code(InstanceKlass* k_h, TRAPS);
-+  void mark_dependent_code(InstanceKlass* ik);
-+
-+  void flush_dependent_code(TRAPS);
- 
-   u8 next_id();
- 
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0022-dcevm15-fix-ResolvedMethodTable.patch

@@ -1,211 +0,0 @@
-From 4f88dcec830d39452f69d1117729469fdb768a8f Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 22 Nov 2020 12:05:26 +0100
-Subject: [PATCH 22/34] dcevm15 - fix ResolvedMethodTable
-
----
- src/hotspot/share/classfile/javaClasses.cpp   |   5 -
- src/hotspot/share/classfile/javaClasses.hpp   |   1 -
- .../share/prims/resolvedMethodTable.cpp       | 139 +++++++++++-------
- 3 files changed, 84 insertions(+), 61 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/javaClasses.cpp b/src/hotspot/share/classfile/javaClasses.cpp
-index 9b086a241f7..9a627786d0f 100644
---- a/src/hotspot/share/classfile/javaClasses.cpp
-+++ b/src/hotspot/share/classfile/javaClasses.cpp
-@@ -3996,11 +3996,6 @@ void java_lang_invoke_ResolvedMethodName::set_vmholder(oop resolved_method, oop
-   resolved_method->obj_field_put(_vmholder_offset, holder);
- }
- 
--void java_lang_invoke_ResolvedMethodName::set_vmholder_offset(oop resolved_method, Method* m) {
--  assert(is_instance(resolved_method), "wrong type");
--  resolved_method->obj_field_put(_vmholder_offset, m->method_holder()->java_mirror());
--}
--
- oop java_lang_invoke_ResolvedMethodName::find_resolved_method(const methodHandle& m, TRAPS) {
-   const Method* method = m();
- 
-diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
-index 9abf2e1d105..8f5993b7225 100644
---- a/src/hotspot/share/classfile/javaClasses.hpp
-+++ b/src/hotspot/share/classfile/javaClasses.hpp
-@@ -1107,7 +1107,6 @@ class java_lang_invoke_ResolvedMethodName : AllStatic {
- 
-   static Method* vmtarget(oop resolved_method);
-   static void set_vmtarget(oop resolved_method, Method* method);
--  static void set_vmholder_offset(oop resolved_method, Method* method);
- 
-   static void set_vmholder(oop resolved_method, oop holder);
- 
-diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
-index eb9fcda44f3..d0f1667b967 100644
---- a/src/hotspot/share/prims/resolvedMethodTable.cpp
-+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
-@@ -375,6 +375,67 @@ public:
-   }
- };
- 
-+class AdjustMethodEntriesDcevm : public StackObj {
-+  bool* _trace_name_printed;
-+  GrowableArray<oop>* _oops_to_add;
-+public:
-+  AdjustMethodEntriesDcevm(GrowableArray<oop>* oops_to_add, bool* trace_name_printed) : _trace_name_printed(trace_name_printed), _oops_to_add(oops_to_add) {};
-+  bool operator()(WeakHandle<vm_resolved_method_table_data>* entry) {
-+    oop mem_name = entry->peek();
-+    if (mem_name == NULL) {
-+      // Removed
-+      return true;
-+    }
-+
-+    Method* old_method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
-+
-+    if (old_method->is_old()) {
-+
-+      InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
-+      Method* newer_method;
-+
-+      // Method* new_method;
-+      if (old_method->is_deleted()) {
-+        newer_method = Universe::throw_no_such_method_error();
-+      } else {
-+        newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
-+
-+        log_debug(redefine, class, update)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
-+
-+        assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
-+        assert(newer_method != NULL, "method_with_idnum() should not be NULL");
-+        assert(old_method != newer_method, "sanity check");
-+
-+        Thread* thread = Thread::current();
-+        ResolvedMethodTableLookup lookup(thread, method_hash(newer_method), newer_method);
-+        ResolvedMethodGet rmg(thread, newer_method);
-+
-+        if (_local_table->get(thread, lookup, rmg)) {
-+          // old method was already adjusted if new method exists in _the_table
-+            return true;
-+        }
-+      }
-+
-+      java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, newer_method);
-+      java_lang_invoke_ResolvedMethodName::set_vmholder(mem_name, newer_method->method_holder()->java_mirror());
-+
-+      newer_klass->set_has_resolved_methods();
-+      _oops_to_add->append(mem_name);
-+
-+      ResourceMark rm;
-+      if (!(*_trace_name_printed)) {
-+        log_debug(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
-+         *_trace_name_printed = true;
-+      }
-+      log_debug(redefine, class, update, constantpool)
-+        ("ResolvedMethod method update: %s(%s)",
-+         newer_method->name()->as_C_string(), newer_method->signature()->as_C_string());
-+    }
-+
-+    return true;
-+  }
-+};
-+
- // It is called at safepoint only for RedefineClasses
- void ResolvedMethodTable::adjust_method_entries(bool * trace_name_printed) {
-   assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
-@@ -382,73 +443,41 @@ void ResolvedMethodTable::adjust_method_entries(bool * trace_name_printed) {
-   AdjustMethodEntries adjust(trace_name_printed);
-   _local_table->do_safepoint_scan(adjust);
- }
--#endif // INCLUDE_JVMTI
- 
--// (DCEVM) It is called at safepoint only for RedefineClasses
-+// It is called at safepoint only for RedefineClasses
- void ResolvedMethodTable::adjust_method_entries_dcevm(bool * trace_name_printed) {
-   assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
-   // For each entry in RMT, change to new method
--  GrowableArray<oop>* oops_to_add = new GrowableArray<oop>();
--
--  for (int i = 0; i < _the_table->table_size(); ++i) {
--    for (ResolvedMethodEntry* entry = _the_table->bucket(i);
--         entry != NULL;
--         entry = entry->next()) {
--
--      oop mem_name = entry->object_no_keepalive();
--      // except ones removed
--      if (mem_name == NULL) {
--        continue;
--      }
--      Method* old_method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
--
--      if (old_method->is_old()) {
--
--        InstanceKlass* newer_klass = InstanceKlass::cast(old_method->method_holder()->new_version());
--        Method* newer_method;
--
--        // Method* new_method;
--        if (old_method->is_deleted()) {
--          newer_method = Universe::throw_no_such_method_error();
--        } else {
--          newer_method = newer_klass->method_with_idnum(old_method->orig_method_idnum());
--
--          log_debug(redefine, class, update)("Adjusting method: '%s' of new class %s", newer_method->name_and_sig_as_C_string(), newer_klass->name()->as_C_string());
--
--          assert(newer_klass == newer_method->method_holder(), "call after swapping redefined guts");
--          assert(newer_method != NULL, "method_with_idnum() should not be NULL");
--          assert(old_method != newer_method, "sanity check");
--
--          if (_the_table->lookup(newer_method) != NULL) {
--            // old method was already adjusted if new method exists in _the_table
--              continue;
--          }
--        }
-+  GrowableArray<oop> oops_to_add(0);
-+  AdjustMethodEntriesDcevm adjust(&oops_to_add, trace_name_printed);
-+  _local_table->do_safepoint_scan(adjust);
-+  Thread* thread = Thread::current();
-+  for (int i = 0; i < oops_to_add.length(); i++) {
-+    oop mem_name = oops_to_add.at(i);
-+    Method* method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
- 
--        java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, newer_method);
--        java_lang_invoke_ResolvedMethodName::set_vmholder_offset(mem_name, newer_method);
-+    // The hash table takes ownership of the WeakHandle, even if it's not inserted.
- 
--        newer_klass->set_has_resolved_methods();
--        oops_to_add->append(mem_name);
-+    ResolvedMethodTableLookup lookup(thread, method_hash(method), method);
-+    ResolvedMethodGet rmg(thread, method);
- 
--        ResourceMark rm;
--        if (!(*trace_name_printed)) {
--          log_debug(redefine, class, update)("adjust: name=%s", old_method->method_holder()->external_name());
--           *trace_name_printed = true;
--        }
--        log_debug(redefine, class, update, constantpool)
--          ("ResolvedMethod method update: %s(%s)",
--           newer_method->name()->as_C_string(), newer_method->signature()->as_C_string());
-+    while (true) {
-+      if (_local_table->get(thread, lookup, rmg)) {
-+        break;
-+      }
-+      WeakHandle<vm_resolved_method_table_data> wh = WeakHandle<vm_resolved_method_table_data>::create(Handle(thread, mem_name));
-+      // The hash table takes ownership of the WeakHandle, even if it's not inserted.
-+      if (_local_table->insert(thread, lookup, wh)) {
-+        log_insert(method);
-+        wh.resolve();
-+        break;
-       }
--    }
--    for (int i = 0; i < oops_to_add->length(); i++) {
--        oop mem_name = oops_to_add->at(i);
--        Method* method = (Method*)java_lang_invoke_ResolvedMethodName::vmtarget(mem_name);
--        _the_table->basic_add(method, Handle(Thread::current(), mem_name));
-     }
-   }
- }
- 
-+#endif // INCLUDE_JVMTI
-+
- // Verification
- class VerifyResolvedMethod : StackObj {
-  public:
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0023-dcevm15-fix-Universe-root_oops_do.patch

@@ -1,88 +0,0 @@
-From 5379e56465d3d3930ec7ea91b1c64db2cdf70170 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 22 Nov 2020 12:05:50 +0100
-Subject: [PATCH 23/34] dcevm15 - fix Universe::root_oops_do
-
----
- src/hotspot/share/memory/universe.cpp | 38 +++++++++------------------
- 1 file changed, 12 insertions(+), 26 deletions(-)
-
-diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
-index f6e4253b5a5..8dad437bd51 100644
---- a/src/hotspot/share/memory/universe.cpp
-+++ b/src/hotspot/share/memory/universe.cpp
-@@ -39,6 +39,7 @@
- #include "gc/shared/gcConfig.hpp"
- #include "gc/shared/gcLogPrecious.hpp"
- #include "gc/shared/gcTraceTime.inline.hpp"
-+#include "gc/shared/weakProcessor.hpp"
- #include "interpreter/interpreter.hpp"
- #include "logging/log.hpp"
- #include "logging/logStream.hpp"
-@@ -75,6 +76,7 @@
- #include "runtime/thread.inline.hpp"
- #include "runtime/timerTrace.hpp"
- #include "runtime/vmOperations.hpp"
-+#include "services/management.hpp"
- #include "services/memoryService.hpp"
- #include "utilities/align.hpp"
- #include "utilities/copy.hpp"
-@@ -180,45 +182,29 @@ void Universe::basic_type_classes_do(KlassClosure *closure) {
- 
- // FIXME: (DCEVM) This method should iterate all pointers that are not within heap objects.
- void Universe::root_oops_do(OopClosure *oopClosure) {
--
--  class AlwaysTrueClosure: public BoolObjectClosure {
--  public:
--    void do_object(oop p) { ShouldNotReachHere(); }
--    bool do_object_b(oop p) { return true; }
--  };
--  AlwaysTrueClosure always_true;
--
-   Universe::oops_do(oopClosure);
- //  ReferenceProcessor::oops_do(oopClosure); (tw) check why no longer there
-   JNIHandles::oops_do(oopClosure);   // Global (strong) JNI handles
-   Threads::oops_do(oopClosure, NULL);
-   ObjectSynchronizer::oops_do(oopClosure);
--  // TODO: review, flat profiler was removed in j10
--  // FlatProfiler::oops_do(oopClosure);
--  JvmtiExport::oops_do(oopClosure);
-+  // (DCEVM) TODO: Check if this is correct?
-+  Management::oops_do(oopClosure);
-+  OopStorageSet::vm_global()->oops_do(oopClosure);
-+  CLDToOopClosure cld_closure(oopClosure, ClassLoaderData::_claim_none);
-+  ClassLoaderDataGraph::cld_do(&cld_closure);
- 
-   // Now adjust pointers in remaining weak roots.  (All of which should
-   // have been cleared if they pointed to non-surviving objects.)
-   // Global (weak) JNI handles
--  JNIHandles::weak_oops_do(&always_true, oopClosure);
-+  WeakProcessor::oops_do(oopClosure);
- 
-   CodeBlobToOopClosure blobClosure(oopClosure, CodeBlobToOopClosure::FixRelocations);
-   CodeCache::blobs_do(&blobClosure);
--  StringTable::oops_do(oopClosure);
-+  AOT_ONLY(AOTLoader::oops_do(oopClosure);)
-+  // StringTable::oops_do was removed in j15
-+  // StringTable::oops_do(oopClosure);
- 
--  // (DCEVM) TODO: Check if this is correct?
--  //CodeCache::scavenge_root_nmethods_oops_do(oopClosure);
--  //Management::oops_do(oopClosure);
--  //ref_processor()->weak_oops_do(&oopClosure);
--  //PSScavenge::reference_processor()->weak_oops_do(&oopClosure);
--
--#if INCLUDE_AOT
--  if (UseAOT) {
--    AOTLoader::oops_do(oopClosure);
--  }
--#endif
--  // SO_AllClasses
--  SystemDictionary::oops_do(oopClosure);
-+  // PSScavenge::reference_processor()->weak_oops_do(oopClosure);
- }
- 
- void Universe::oops_do(OopClosure* f) {
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0024-Cleanup-dcevm-comments.patch

@@ -1,67 +0,0 @@
-From c6ea68e66d37d70739f7b0ee74131322b4526a68 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 22 Nov 2020 12:03:32 +0100
-Subject: [PATCH 24/34] Cleanup dcevm comments
-
----
- src/hotspot/share/classfile/classLoaderDataGraph.hpp     | 2 +-
- src/hotspot/share/classfile/systemDictionary.hpp         | 2 +-
- src/hotspot/share/gc/shared/gcConfig.cpp                 | 2 +-
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp | 2 +-
- 4 files changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/classLoaderDataGraph.hpp b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
-index f380aa3fa34..8ce94cccb47 100644
---- a/src/hotspot/share/classfile/classLoaderDataGraph.hpp
-+++ b/src/hotspot/share/classfile/classLoaderDataGraph.hpp
-@@ -104,7 +104,7 @@ class ClassLoaderDataGraph : public AllStatic {
- 
-   static void dictionary_classes_do(KlassClosure* klass_closure);
- 
--  // Enhanced class redefinition
-+  // (DCEVM) Enhanced class redefinition
-   static void rollback_redefinition();
- 
-   // VM_CounterDecay iteration support
-diff --git a/src/hotspot/share/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
-index 931e655d631..1019dbd0d04 100644
---- a/src/hotspot/share/classfile/systemDictionary.hpp
-+++ b/src/hotspot/share/classfile/systemDictionary.hpp
-@@ -455,7 +455,7 @@ public:
-   static bool is_well_known_klass(Symbol* class_name);
- #endif
- 
--  // Enhanced class redefinition
-+  // (DCEVM) Enhanced class redefinition
-   static void remove_from_hierarchy(InstanceKlass* k);
-   static void update_constraints_after_redefinition();
- 
-diff --git a/src/hotspot/share/gc/shared/gcConfig.cpp b/src/hotspot/share/gc/shared/gcConfig.cpp
-index 5c1a09390f1..23fbf715378 100644
---- a/src/hotspot/share/gc/shared/gcConfig.cpp
-+++ b/src/hotspot/share/gc/shared/gcConfig.cpp
-@@ -99,7 +99,7 @@ void GCConfig::fail_if_non_included_gc_is_selected() {
- 
- void GCConfig::select_gc_ergonomically() {
-   if (AllowEnhancedClassRedefinition && !UseG1GC) {
--    // Enhanced class redefinition only supports serial GC at the moment
-+    // (DCEVM) Enhanced class redefinition only supports serial GC at the moment
-     FLAG_SET_ERGO(UseSerialGC, true);
-   } else if (os::is_server_class_machine()) {
- #if INCLUDE_G1GC
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index bd5e7d153be..5de375fb888 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -78,7 +78,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   // have any entries.
-   bool _any_class_has_resolved_methods;
- 
--  // Enhanced class redefinition, affected klasses contain all classes which should be redefined
-+  // (DCEVM) Enhanced class redefinition, affected klasses contain all classes which should be redefined
-   // either because of redefine, class hierarchy or interface change
-   GrowableArray<Klass*>*      _affected_klasses;
- 
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0025-Fix-cpCache-in-not-AllowEnhancedClassRedefinition-mo.patch

@@ -1,43 +0,0 @@
-From 507d97966c7145d0ae2533459cc504c7b0d6d5b6 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 22 Nov 2020 18:49:05 +0100
-Subject: [PATCH 25/34] Fix cpCache in not AllowEnhancedClassRedefinition mode
-
----
- src/hotspot/share/oops/cpCache.hpp | 8 +++++---
- 1 file changed, 5 insertions(+), 3 deletions(-)
-
-diff --git a/src/hotspot/share/oops/cpCache.hpp b/src/hotspot/share/oops/cpCache.hpp
-index 121a13b1dda..64dcf6223f5 100644
---- a/src/hotspot/share/oops/cpCache.hpp
-+++ b/src/hotspot/share/oops/cpCache.hpp
-@@ -148,13 +148,13 @@ class ConstantPoolCacheEntry {
-   void set_bytecode_2(Bytecodes::Code code);
-   void set_f1(Metadata* f1) {
-     Metadata* existing_f1 = _f1; // read once
--    //assert(existing_f1 == NULL || existing_f1 == f1, "illegal field change");
-+    assert(AllowEnhancedClassRedefinition || existing_f1 == NULL || existing_f1 == f1, "illegal field change");
-     _f1 = f1;
-   }
-   void release_set_f1(Metadata* f1);
-   void set_f2(intx f2) {
-     intx existing_f2 = _f2; // read once
--    //assert(existing_f2 == 0 || existing_f2 == f2, "illegal field change");
-+    assert(AllowEnhancedClassRedefinition || existing_f2 == 0 || existing_f2 == f2, "illegal field change");
-     _f2 = f2;
-   }
-   void set_f2_as_vfinal_method(Method* f2) {
-@@ -215,7 +215,9 @@ class ConstantPoolCacheEntry {
-   void initialize_resolved_reference_index(int ref_index) {
-     assert(_f2 == 0, "set once");  // note: ref_index might be zero also
-     _f2 = ref_index;
--    _flags = 1 << is_resolved_ref_shift;
-+    if (AllowEnhancedClassRedefinition) {
-+      _flags = 1 << is_resolved_ref_shift;
-+    }
-   }
- 
-   void set_field(                                // sets entry to resolved field state
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0026-dcevm15-add-ClassLoaderDataGraph_lock-on.patch

@@ -1,32 +0,0 @@
-From b516b615c20fafa2094dfb9f4cb08245b26418d0 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 22 Nov 2020 19:51:46 +0100
-Subject: [PATCH 26/34] dcevm15 - add ClassLoaderDataGraph_lock on
- ClassLoaderDataGraph::classes_do
-
-ClassLoaderDataGraph::classes_do need safepoint or lock,
-find_sorted_affected_classes is not in safepoint therefore it must be
-locked
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index efaf11e1666..197e1c0029f 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -2063,7 +2063,10 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
-   AffectedKlassClosure closure(_affected_klasses);
-   // Updated in j10, from original SystemDictionary::classes_do
- 
--  ClassLoaderDataGraph::classes_do(&closure);
-+  {
-+    MutexLocker mcld(ClassLoaderDataGraph_lock);
-+    ClassLoaderDataGraph::classes_do(&closure);
-+  }
-   //ClassLoaderDataGraph::dictionary_classes_do(&closure);
- 
-   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0027-dcevm15-check-if-has_nestmate_access_to-has-newest-h.patch

@@ -1,29 +0,0 @@
-From c6498946006879314bdc6218ee72da5d9c88f237 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sat, 28 Nov 2020 19:29:42 +0100
-Subject: [PATCH 27/34] dcevm15 - check if has_nestmate_access_to has newest
- host class
-
----
- src/hotspot/share/oops/instanceKlass.cpp | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index 5e40d78a87e..1d9623f2446 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -445,6 +445,11 @@ bool InstanceKlass::has_nestmate_access_to(InstanceKlass* k, TRAPS) {
-     return false;
-   }
- 
-+  if (AllowEnhancedClassRedefinition) {
-+    // TODO: (DCEVM) check if it correct. It fix problems with lambdas (hidden)
-+    cur_host = InstanceKlass::cast(cur_host->newest_version());
-+  }
-+
-   Klass* k_nest_host = k->nest_host(CHECK_false);
-   if (k_nest_host == NULL) {
-     return false;
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0028-Remove-unused-fieldType.patch

@@ -1,24 +0,0 @@
-From 86c27155386c1c40642c99c63a242d1f5d8601a5 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sat, 28 Nov 2020 19:31:08 +0100
-Subject: [PATCH 28/34] Remove unused fieldType
-
----
- src/hotspot/share/classfile/vmSymbols.hpp | 1 -
- 1 file changed, 1 deletion(-)
-
-diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
-index 6a3b234b222..eb06684a288 100644
---- a/src/hotspot/share/classfile/vmSymbols.hpp
-+++ b/src/hotspot/share/classfile/vmSymbols.hpp
-@@ -465,7 +465,6 @@
-   template(static_offset_name,                        "staticOffset")                             \
-   template(static_base_name,                          "staticBase")                               \
-   template(field_offset_name,                         "fieldOffset")                              \
--  template(field_type_name,                           "fieldType")                                \
-                                                                                                   \
-    /* name symbols needed by intrinsics */                                                         \
-                                                                                                   \
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0029-mark_as_scavengable-only-alive-methods.patch

@@ -1,54 +0,0 @@
-From 025d0d2903963fb79f83cf0d90418783d3ef6813 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 29 Nov 2020 17:18:16 +0100
-Subject: [PATCH 29/34] mark_as_scavengable only alive methods
-
----
- .../share/prims/jvmtiEnhancedRedefineClasses.cpp   | 14 ++++++++------
- 1 file changed, 8 insertions(+), 6 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 197e1c0029f..e00fac1f693 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -223,19 +223,21 @@ class FieldCopier : public FieldClosure {
- 
- // TODO: review...
- void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
--  ScavengableNMethods::register_nmethod(nm);
-+  if (nm->is_alive()) {
-+    ScavengableNMethods::register_nmethod(nm);
-+  }
- }
- 
- void VM_EnhancedRedefineClasses::unregister_nmethod_g1(nmethod* nm) {
-   // It should work not only for G1 but also for another GCs, but this way is safer now
--  if (!nm->is_zombie() && !nm->is_unloaded()) {
-+  if (nm->is_alive()) {
-     Universe::heap()->unregister_nmethod(nm);
-   }
- }
- 
- void VM_EnhancedRedefineClasses::register_nmethod_g1(nmethod* nm) {
-   // It should work not only for G1 but also for another GCs, but this way is safer now
--  if (!nm->is_zombie() && !nm->is_unloaded()) {
-+  if (nm->is_alive()) {
-     Universe::heap()->register_nmethod(nm);
-   }
- }
-@@ -511,9 +513,9 @@ void VM_EnhancedRedefineClasses::doit() {
-     flush_dependent_code(thread);
-   // }
- 
--    // Adjust constantpool caches for all classes that reference methods of the evolved class.
--    ClearCpoolCacheAndUnpatch clear_cpool_cache(thread);
--    ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
-+  // Adjust constantpool caches for all classes that reference methods of the evolved class.
-+  ClearCpoolCacheAndUnpatch clear_cpool_cache(thread);
-+  ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
- 
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0030-dcevm15-lock-on-ClassLoaderDataGraph-rollback_redefi.patch

@@ -1,28 +0,0 @@
-From 27aabfefe7d799545049bb81ba19d4ed2ff6379c Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 29 Nov 2020 17:20:11 +0100
-Subject: [PATCH 30/34] dcevm15 - lock on
- ClassLoaderDataGraph::rollback_redefinition
-
-rollback is not in safepoint, therefore must be locked
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index e00fac1f693..db5fb1c472b 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1382,7 +1382,9 @@ void VM_EnhancedRedefineClasses::calculate_instance_update_information(Klass* ne
- // Rollback all changes - clear new classes from the system dictionary, return old classes to directory, free memory.
- void VM_EnhancedRedefineClasses::rollback() {
-   log_info(redefine, class, load)("Rolling back redefinition, result=%d", _res);
-+  ClassLoaderDataGraph_lock->lock();
-   ClassLoaderDataGraph::rollback_redefinition();
-+  ClassLoaderDataGraph_lock->unlock();
- 
-   for (int i = 0; i < _new_classes->length(); i++) {
-     SystemDictionary::remove_from_hierarchy(_new_classes->at(i));
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0031-ResourceMark-in-G1IterateObjectClosureTask-fixing-me.patch

@@ -1,28 +0,0 @@
-From 9b405cb642d5935c39c8dbd522ea2fdecfc29ef3 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 29 Nov 2020 19:59:50 +0100
-Subject: [PATCH 31/34] ResourceMark in G1IterateObjectClosureTask fixing
- memory leaks
-
-G1IterateObjectClosureTask is used only in redefinition full GC run
----
- src/hotspot/share/gc/g1/g1CollectedHeap.cpp | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/src/hotspot/share/gc/g1/g1CollectedHeap.cpp b/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
-index a29d2dddc2d..2af6df6c1e4 100644
---- a/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
-+++ b/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
-@@ -2362,6 +2362,9 @@ class G1IterateObjectClosureTask : public AbstractGangTask {
-     _cl(cl), _g1h(g1h),  _hrclaimer(g1h->workers()->active_workers()) { }
- 
-   virtual void work(uint worker_id) {
-+    Thread *thread = Thread::current();
-+    HandleMark hm(thread);   // make sure any handles created are deleted
-+    ResourceMark rm(thread);
-     IterateObjectClosureRegionClosure blk(_cl);
-     _g1h->heap_region_par_iterate_from_worker_offset(&blk, &_hrclaimer, worker_id);
-   }
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0032-dcevm15-fix-hidded-classes.patch

@@ -1,91 +0,0 @@
-From 40fe40884d4efc50864bb3f2dd88f0a2e7122d5a Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 29 Nov 2020 20:05:03 +0100
-Subject: [PATCH 32/34] dcevm15 - fix hidded classes
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 41 ++++++++++++++-----
- 1 file changed, 30 insertions(+), 11 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index db5fb1c472b..590f7fdfafe 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -722,7 +722,8 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
-   }
- 
-   // Cannot redefine or retransform an anonymous class.
--  if (InstanceKlass::cast(k)->is_unsafe_anonymous()) {
-+  // TODO: check if is correct in j15
-+  if (InstanceKlass::cast(k)->is_unsafe_anonymous() || InstanceKlass::cast(k)->is_hidden()) {
-     return false;
-   }
-   return true;
-@@ -808,21 +809,27 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
- 
-     InstanceKlass* k;
- 
--    if (InstanceKlass::cast(the_class)->is_unsafe_anonymous()) {
--      const InstanceKlass* host_class = the_class->unsafe_anonymous_host();
-+    if (the_class->is_unsafe_anonymous() || the_class->is_hidden()) {
-+      InstanceKlass* dynamic_host_class = NULL;
-+      InstanceKlass* unsafe_anonymous_host = NULL;
- 
--      // Make sure it's the real host class, not another anonymous class.
--      while (host_class != NULL && host_class->is_unsafe_anonymous()) {
--        host_class = host_class->unsafe_anonymous_host();
-+      if (the_class->is_hidden()) {
-+        log_debug(redefine, class, load)("loading hidden class %s", the_class->name()->as_C_string());
-+        dynamic_host_class = the_class->nest_host(THREAD);
-+      }
-+
-+      if (the_class->is_unsafe_anonymous()) {
-+        log_debug(redefine, class, load)("loading usafe anonymous %s", the_class->name()->as_C_string());
-+        unsafe_anonymous_host = the_class->unsafe_anonymous_host();
-       }
- 
-       ClassLoadInfo cl_info(protection_domain,
--                            host_class,
--                            NULL,     // dynamic_nest_host
-+                            unsafe_anonymous_host,
-                             NULL,     // cp_patches
-+                            dynamic_host_class,     // dynamic_nest_host
-                             Handle(), // classData
--                            false,    // is_hidden
--                            false,    // is_strong_hidden
-+                            the_class->is_hidden(),    // is_hidden
-+                            !the_class->is_non_strong_hidden(),    // is_strong_hidden
-                             true);    // FIXME: check if correct. can_access_vm_annotations
- 
-       k = SystemDictionary::parse_stream(the_class_sym,
-@@ -833,7 +840,17 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
-                                          THREAD);
- 
-       k->class_loader_data()->exchange_holders(the_class->class_loader_data());
--      the_class->class_loader_data()->inc_keep_alive();
-+
-+      if (the_class->is_hidden()) {
-+      // from jvm_lookup_define_class() (jvm.cpp):
-+      // The hidden class loader data has been artificially been kept alive to
-+      // this point. The mirror and any instances of this class have to keep
-+      // it alive afterwards.
-+        the_class->class_loader_data()->dec_keep_alive();
-+      } else {
-+        the_class->class_loader_data()->inc_keep_alive();
-+      }
-+
-     } else {
-       k = SystemDictionary::resolve_from_stream(the_class_sym,
-                                                   the_class_loader,
-@@ -1475,6 +1492,8 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
-     ik->set_unsafe_anonymous_host(InstanceKlass::cast(ik->unsafe_anonymous_host()->newest_version()));
-   }
- 
-+  // FIXME: check new nest_host for hidden
-+
-   // Update implementor if there is only one, in this case implementor() can reference old class
-   if (ik->is_interface()) {
-     Klass* implKlass = ik->implementor();
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0033-dcevm15-DON-T-clear-F2-in-CP-cache-after-indy-unevol.patch

@@ -1,27 +0,0 @@
-From 29920b076b4ad96d85adbce0a1d947e5022ba3ad Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 29 Nov 2020 20:08:57 +0100
-Subject: [PATCH 33/34] dcevm15 - DON'T clear F2 in CP cache after indy
- unevolving
-
-It's not clear why it was cleared in dcevm7-11
----
- src/hotspot/share/oops/cpCache.cpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/oops/cpCache.cpp b/src/hotspot/share/oops/cpCache.cpp
-index 79a38dbeff0..650e6fab42d 100644
---- a/src/hotspot/share/oops/cpCache.cpp
-+++ b/src/hotspot/share/oops/cpCache.cpp
-@@ -650,7 +650,7 @@ void ConstantPoolCacheEntry::clear_entry() {
- 
-   if (clearData) {
-     if (!is_resolved_reference()) {
--      _f2 = 0;
-+      // _f2 = 0;
-     }
-     // FIXME: (DCEVM) we want to clear flags, but parameter size is actually used
-     // after we return from the method, before entry is re-initialized. So let's
--- 
-2.23.0
-

jb/project/tools/patches/dcevm/0034-dcevm15-fix-Universe-root_oops_do.patch

@@ -1,49 +0,0 @@
-From 1f13b20ab5553182680045b7d7324ff92da7e7f0 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
-Date: Sun, 29 Nov 2020 21:28:06 +0100
-Subject: [PATCH 34/34] dcevm15 - fix Universe::root_oops_do
-
-Removed ClassLoaderDataGraph::cld_do was cause of crashes due multiple
-oop patching. ClassLoaderDataGraph::cld_do replaced in dcevm15
-previously used and removed SystemDictionary:oops_do
----
- src/hotspot/share/memory/universe.cpp | 11 ++++++++---
- 1 file changed, 8 insertions(+), 3 deletions(-)
-
-diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
-index 8dad437bd51..0199962a684 100644
---- a/src/hotspot/share/memory/universe.cpp
-+++ b/src/hotspot/share/memory/universe.cpp
-@@ -190,21 +190,26 @@ void Universe::root_oops_do(OopClosure *oopClosure) {
-   // (DCEVM) TODO: Check if this is correct?
-   Management::oops_do(oopClosure);
-   OopStorageSet::vm_global()->oops_do(oopClosure);
--  CLDToOopClosure cld_closure(oopClosure, ClassLoaderData::_claim_none);
--  ClassLoaderDataGraph::cld_do(&cld_closure);
-+  // CLDToOopClosure cld_closure(oopClosure, ClassLoaderData::_claim_none);
-+  // ClassLoaderDataGraph::cld_do(&cld_closure);
- 
-   // Now adjust pointers in remaining weak roots.  (All of which should
-   // have been cleared if they pointed to non-surviving objects.)
-   // Global (weak) JNI handles
-   WeakProcessor::oops_do(oopClosure);
- 
-+  JvmtiExport::oops_do(oopClosure);
-+
-   CodeBlobToOopClosure blobClosure(oopClosure, CodeBlobToOopClosure::FixRelocations);
-   CodeCache::blobs_do(&blobClosure);
-+  
-   AOT_ONLY(AOTLoader::oops_do(oopClosure);)
-+  
-   // StringTable::oops_do was removed in j15
-   // StringTable::oops_do(oopClosure);
- 
--  // PSScavenge::reference_processor()->weak_oops_do(oopClosure);
-+  // OopStorageSet::vm_global()->oops_do(oopClosure);
-+
- }
- 
- void Universe::oops_do(OopClosure* f) {
--- 
-2.23.0
-

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

@@ -1,119 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   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
-#
-# 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:
-#   JCEF_PATH - specifies the path to the directory with JCEF binaries.
-#               By default JCEF binaries should be located in ./jcef_win_x64
-
-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 create_image_bundle {
-  __bundle_name=$1
-  __modules_path=$2
-  __modules=$3
-
-  [ -d $__bundle_name ] && rm -rf $__bundle_name
-
-  echo Running jlink ...
-  ${JSDK}/bin/jlink \
-    --module-path $__modules_path --no-man-pages --compress=2 \
-    --add-modules $__modules --output $__bundle_name || do_exit $?
-
-  grep -v "^JAVA_VERSION" "$JSDK"/release | grep -v "^MODULES" >> $__bundle_name/release
-  if [ "$__bundle_name" == "$JBRSDK_BUNDLE" ]; then
-    sed 's/JBR/JBRSDK/g' $__bundle_name/release > release
-    mv release $__bundle_name/release
-  fi
-}
-
-WITH_DEBUG_LEVEL="--with-debug-level=release"
-RELEASE_NAME=windows-x86_64-server-release
-
-case "$bundle_type" in
-  "jcef")
-    do_reset_changes=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=""
-    ;;
-  "fd")
-    do_reset_changes=1
-    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
-    RELEASE_NAME=windows-x86_64-server-fastdebug
-    ;;
-esac
-
-sh ./configure \
-  --disable-warnings-as-errors \
-  $WITH_DEBUG_LEVEL \
-  --with-vendor-name="$VENDOR_NAME" \
-  --with-vendor-version-string="$VENDOR_VERSION_STRING" \
-  --with-version-pre= \
-  --with-version-build=$JDK_BUILD_NUMBER \
-  --with-version-opt=b${build_number} \
-  --with-toolchain-version=$TOOLCHAIN_VERSION \
-  --with-boot-jdk=$BOOT_JDK \
-  --disable-ccache \
-  --enable-cds=yes || do_exit $?
-
-if [ -z "$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 $?
-fi
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk
-JSDK_MODS_DIR=$IMAGES_DIR/jmods
-JBRSDK_BUNDLE=jbrsdk
-
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
-  git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
-  update_jsdk_mods "$JSDK" "$JCEF_PATH"/jmods "$JSDK"/jmods "$JSDK_MODS_DIR" || do_exit $?
-  cp $JCEF_PATH/jmods/* ${JSDK_MODS_DIR} # $JSDK/jmods is not unchanged
-
-  jbr_name_postfix="_${bundle_type}"
-fi
-
-# create runtime image bundle
-modules=$(xargs < modules.list | sed s/" "//g) || do_exit $?
-create_image_bundle "jbr${jbr_name_postfix}" $JSDK_MODS_DIR "$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" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
-  modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
-fi
-create_image_bundle "$JBRSDK_BUNDLE" "$JSDK_MODS_DIR" "$modules" || do_exit $?
-
-do_exit 0

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

@@ -1,63 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
-#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
-#   build_number     - specifies the number of JetBrainsRuntime build
-#
-# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-#
-# $ ./java --version
-# openjdk 11.0.6 2020-01-14
-# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
-# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
-#
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-
-JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
-
-source jb/project/tools/common/scripts/common.sh
-
-JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
-WORK_DIR=$(pwd)
-
-[ -z "$bundle_type" ] && (git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch || exit $?)
-
-PATH="/usr/local/bin:/usr/bin:${PATH}"
-./configure \
-  --disable-warnings-as-errors \
-  --with-target-bits=32 \
-  --with-vendor-name="${VENDOR_NAME}" \
-  --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
-  --with-version-pre= \
-  --with-version-build=${JDK_BUILD_NUMBER} \
-  --with-version-opt=b${build_number} \
-  --with-toolchain-version=${TOOLCHAIN_VERSION} \
-  --with-boot-jdk=${BOOT_JDK} \
-  --disable-ccache \
-  --enable-cds=yes || exit 1
-make clean CONF=windows-x86-server-release || exit 1
-make LOG=info images CONF=windows-x86-server-release test-image || exit 1
-
-JBSDK=${JBRSDK_BASE_NAME}-windows-x86-b${build_number}
-BASE_DIR=build/windows-x86-server-release/images
-JSDK=${BASE_DIR}/jdk
-JBRSDK_BUNDLE=jbrsdk
-
-rm -rf ${BASE_DIR}/${JBRSDK_BUNDLE} && rsync -a --exclude demo --exclude sample ${JSDK}/ ${JBRSDK_BUNDLE} || exit 1
-sed 's/JBR/JBRSDK/g' ${JSDK}/release > release
-mv release ${JBRSDK_BUNDLE}/release
-
-JBR_BUNDLE=jbr
-rm -rf ${JBR_BUNDLE}
-grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
-${JSDK}/bin/jlink \
-  --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
-  --add-modules $(xargs < modules.list.x86 | sed s/" "//g) --output ${JBR_BUNDLE} || exit $?
-
-echo Modifying release info ...
-#grep -v \"^JAVA_VERSION\" ${JSDK}/release | grep -v \"^MODULES\" >> ${JBR_BUNDLE}/release

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

@@ -1,77 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   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
-#
-# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-#
-# $ ./java --version
-# openjdk 11.0.6 2020-01-14
-# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
-# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
-#
-
-source jb/project/tools/common/scripts/common.sh
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-bundle_type=$4
-
-function pack_jbr {
-
-  if [ -z "${bundle_type}" ]; then
-    JBR_BUNDLE=jbr
-  else
-    JBR_BUNDLE=jbr_${bundle_type}
-    [ -d ${BASE_DIR}/jbr ] && rm -rf ${BASE_DIR}/jbr
-    cp -R ${BASE_DIR}/${JBR_BUNDLE} ${BASE_DIR}/jbr
-  fi
-  JBR_BASE_NAME=${JBR_BUNDLE}-${JBSDK_VERSION}
-
-  JBR=$JBR_BASE_NAME-windows-x64-b$build_number
-  echo Creating $JBR.tar.gz ...
-
-  /usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR jbr || do_exit $?
-}
-
-JBRSDK_BASE_NAME=jbrsdk-$JBSDK_VERSION
-JBR_BASE_NAME=jbr-$JBSDK_VERSION
-RELEASE_NAME=windows-x86_64-server-release
-JBSDK=${JBRSDK_BASE_NAME}-osx-x64-b${build_number}
-case "$bundle_type" in
-  "nomod" | "")
-    bundle_type=""
-    ;;
-  "fd")
-    RELEASE_NAME=macosx-x86_64-server-fastdebug
-    JBSDK=${JBRSDK_BASE_NAME}-osx-x64-fastdebug-b${build_number}
-    ;;
-esac
-
-IMAGES_DIR=build/$RELEASE_NAME/images
-JSDK=$IMAGES_DIR/jdk
-JBSDK=$JBRSDK_BASE_NAME-windows-x64-b$build_number
-BASE_DIR=.
-
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "dcevm" ] || [ "$bundle_type" == "fd" ]; then
-  JBRSDK_BUNDLE=jbrsdk
-  echo Creating $JBSDK.tar.gz ...
-  [ -f "$JBSDK.tar.gz" ] && rm "$JBSDK.tar.gz"
-  /usr/bin/tar -czf $JBSDK.tar.gz $JBRSDK_BUNDLE || do_exit $?
-fi
-
-pack_jbr $bundle_type
-
-if [ -z "$bundle_type" ]; then
-  JBRSDK_TEST=$JBRSDK_BASE_NAME-windows-test-x64-b$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 $?
-fi

jb/project/tools/windows/scripts/pack_x86.sh

@@ -1,42 +0,0 @@
-#!/bin/bash -x
-
-# The following parameters must be specified:
-#   JBSDK_VERSION    - specifies the current version of OpenJDK e.g. 11_0_6
-#   JDK_BUILD_NUMBER - specifies the number of OpenJDK build or the value of --with-version-build argument to configure
-#   build_number     - specifies the number of JetBrainsRuntime build
-#
-# jbrsdk-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-# jbr-${JBSDK_VERSION}-osx-x64-b${build_number}.tar.gz
-#
-# $ ./java --version
-# openjdk 11.0.6 2020-01-14
-# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
-# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
-#
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-
-JBRSDK_BASE_NAME=jbrsdk-$JBSDK_VERSION
-JBR_BASE_NAME=jbr-$JBSDK_VERSION
-
-IMAGES_DIR=build/windows-x86-server-release/images
-JSDK=$IMAGES_DIR/jdk
-JBSDK=$JBRSDK_BASE_NAME-windows-x86-b$build_number
-BASE_DIR=.
-
-JBRSDK_BUNDLE=jbrsdk
-echo Creating $JBSDK.tar.gz ...
-/usr/bin/tar -czf $JBSDK.tar.gz $JBRSDK_BUNDLE || exit 1
-
-JBR_BUNDLE=jbr
-JBR_BASE_NAME=jbr-${JBSDK_VERSION}
-
-JBR=$JBR_BASE_NAME-windows-x86-b$build_number
-echo Creating $JBR.tar.gz ...
-/usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR ${JBR_BUNDLE} || exit 1
-
-JBRSDK_TEST=$JBRSDK_BASE_NAME-windows-test-x86-b$build_number
-echo Creating $JBRSDK_TEST.tar.gz ...
-/usr/bin/tar -czf $JBRSDK_TEST.tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || exit 1

make/Docs.gmk

@@ -99,7 +99,7 @@ JAVADOC_TAGS := \
 REFERENCE_TAGS := $(JAVADOC_TAGS)
 
 # Which doclint checks to ignore
-JAVADOC_DISABLED_DOCLINT := accessibility html missing syntax reference
+JAVADOC_DISABLED_DOCLINT := missing
 
 # The initial set of options for javadoc
 JAVADOC_OPTIONS := -use -keywords -notimestamp \
@@ -261,6 +261,7 @@ endef
 #   SHORT_NAME - The short name of this documentation collection
 #   LONG_NAME - The long name of this documentation collection
 #   TARGET_DIR - Where to store the output
+#   OTHER_VERSIONS - URL for other page listing versions
 #
 SetupApiDocsGeneration = $(NamedParamsMacroTemplate)
 define SetupApiDocsGenerationBody
@@ -297,10 +298,16 @@ define SetupApiDocsGenerationBody
   # Ignore the doclint warnings in the W3C DOM package
   $1_OPTIONS += -Xdoclint/package:-org.w3c.*
 
+  ifneq ($$($1_OTHER_VERSIONS), )
+    $1_LINKED_SHORT_NAME = <a href="$$($1_OTHER_VERSIONS)">$$($1_SHORT_NAME)</a>
+  else
+    $1_LINKED_SHORT_NAME = $$($1_SHORT_NAME)
+  endif
+
   $1_DOC_TITLE := $$($1_LONG_NAME)<br>Version $$(VERSION_SPECIFICATION) API \
       Specification
   $1_WINDOW_TITLE := $$(subst &amp;,&,$$($1_SHORT_NAME))$$(DRAFT_MARKER_TITLE)
-  $1_HEADER_TITLE := <div $$(HEADER_STYLE)><strong>$$($1_SHORT_NAME)</strong> \
+  $1_HEADER_TITLE := <div $$(HEADER_STYLE)><strong>$$($1_LINKED_SHORT_NAME)</strong> \
       $$(DRAFT_MARKER_STR)</div>
 
   $1_OPTIONS += -doctitle '$$($1_DOC_TITLE)'
@@ -438,6 +445,7 @@ $(eval $(call SetupApiDocsGeneration, JDK_API, \
     SHORT_NAME := $(JDK_SHORT_NAME), \
     LONG_NAME := $(JDK_LONG_NAME), \
     TARGET_DIR := $(DOCS_OUTPUTDIR)/api, \
+    OTHER_VERSIONS := $(OTHER_JDK_VERSIONS_URL), \
 ))
 
 # Targets generated are returned in JDK_API_JAVADOC_TARGETS and

make/autoconf/lib-freetype.m4

@@ -192,6 +192,16 @@ AC_DEFUN_ONCE([LIB_SETUP_FREETYPE],
               [$FREETYPE_BASE_DIR/lib], [well-known location])
         fi
 
+        if test "x$FOUND_FREETYPE" != "xyes" ; then
+          LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include],
+              [$FREETYPE_BASE_DIR/lib/$OPENJDK_TARGET_CPU-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI], [well-known location])
+        fi
+
+        if test "x$FOUND_FREETYPE" != "xyes" ; then
+          LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include],
+              [$FREETYPE_BASE_DIR/lib/$OPENJDK_TARGET_CPU_AUTOCONF-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI], [well-known location])
+        fi
+
         if test "x$FOUND_FREETYPE" != "xyes" ; then
           FREETYPE_BASE_DIR="$SYSROOT/usr/X11"
           LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include],

make/autoconf/lib-x11.m4

@@ -68,6 +68,10 @@ AC_DEFUN_ONCE([LIB_SETUP_X11],
             x_libraries="$SYSROOT/usr/lib64"
           elif test -f "$SYSROOT/usr/lib/libX11.so"; then
             x_libraries="$SYSROOT/usr/lib"
+          elif test -f "$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"; then
+            x_libraries="$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"
+          elif test -f "$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU_AUTOCONF-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"; then
+            x_libraries="$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU_AUTOCONF-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"
           fi
         fi
       fi

make/autoconf/platform.m4

@@ -238,6 +238,33 @@ AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_LIBC],
   esac
 ])
 
+# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
+# Converts autoconf style OS name to OpenJDK style, into
+# VAR_ABI.
+AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_ABI],
+[
+  case "$1" in
+    *linux*-musl)
+      VAR_ABI=musl
+      ;;
+    *linux*-gnu)
+      VAR_ABI=gnu
+      ;;
+    *linux*-gnueabi)
+      VAR_ABI=gnueabi
+      ;;
+    *linux*-gnueabihf)
+      VAR_ABI=gnueabihf
+      ;;
+    *linux*-gnuabi64)
+      VAR_ABI=gnuabi64
+      ;;
+    *)
+      VAR_ABI=default
+      ;;
+  esac
+])
+
 # Expects $host_os $host_cpu $build_os and $build_cpu
 # and $with_target_bits to have been setup!
 #
@@ -259,6 +286,7 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
   PLATFORM_EXTRACT_VARS_FROM_LIBC($build_os)
+  PLATFORM_EXTRACT_VARS_FROM_ABI($build_os)
   # ..and setup our own variables. (Do this explicitly to facilitate searching)
   OPENJDK_BUILD_OS="$VAR_OS"
   if test "x$VAR_OS_TYPE" != x; then
@@ -275,7 +303,9 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
+  OPENJDK_BUILD_CPU_AUTOCONF="$build_cpu"
   OPENJDK_BUILD_LIBC="$VAR_LIBC"
+  OPENJDK_BUILD_ABI="$VAR_ABI"
   AC_SUBST(OPENJDK_BUILD_OS)
   AC_SUBST(OPENJDK_BUILD_OS_TYPE)
   AC_SUBST(OPENJDK_BUILD_OS_ENV)
@@ -283,7 +313,9 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
+  AC_SUBST(OPENJDK_BUILD_CPU_AUTOCONF)
   AC_SUBST(OPENJDK_BUILD_LIBC)
+  AC_SUBST(OPENJDK_BUILD_ABI)
 
   AC_MSG_CHECKING([openjdk-build os-cpu])
   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
@@ -297,6 +329,7 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
   PLATFORM_EXTRACT_VARS_FROM_LIBC($host_os)
+  PLATFORM_EXTRACT_VARS_FROM_ABI($host_os)
   # ... and setup our own variables. (Do this explicitly to facilitate searching)
   OPENJDK_TARGET_OS="$VAR_OS"
   if test "x$VAR_OS_TYPE" != x; then
@@ -313,8 +346,10 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
+  OPENJDK_TARGET_CPU_AUTOCONF="$host_cpu"
   OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
   OPENJDK_TARGET_LIBC="$VAR_LIBC"
+  OPENJDK_TARGET_ABI="$VAR_ABI"
 
   AC_SUBST(OPENJDK_TARGET_OS)
   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
@@ -324,7 +359,9 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
+  AC_SUBST(OPENJDK_TARGET_CPU_AUTOCONF)
   AC_SUBST(OPENJDK_TARGET_LIBC)
+  AC_SUBST(OPENJDK_TARGET_ABI)
 
   AC_MSG_CHECKING([openjdk-target os-cpu])
   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])

make/conf/javadoc.conf

@@ -28,3 +28,4 @@ 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_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

@@ -1114,7 +1114,7 @@ var getJibProfilesDependencies = function (input, common) {
         jmh: {
             organization: common.organization,
             ext: "tar.gz",
-            revision: "1.21+1.0"
+            revision: "1.28+1.0"
         },
 
         jcov: {

make/data/characterdata/CharacterData00.java.template

@@ -84,16 +84,6 @@ class CharacterData00 extends CharacterData {
         return (props & $$maskType);
     }
 
-    boolean isOtherLowercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherLowercase) != 0;
-    }
-
-    boolean isOtherUppercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherUppercase) != 0;
-    }
-
     boolean isOtherAlphabetic(int ch) {
         int props = getPropertiesEx(ch);
         return (props & $$maskOtherAlphabetic) != 0;
@@ -765,13 +755,13 @@ class CharacterData00 extends CharacterData {
     }
 
     boolean isLowerCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.LOWERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.LOWERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherLowercase) != 0;
     }
 
     boolean isUpperCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.UPPERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.UPPERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherUppercase) != 0;
     }
 
     boolean isWhitespace(int ch) {

make/data/characterdata/CharacterData01.java.template

@@ -83,16 +83,6 @@ class CharacterData01 extends CharacterData {
         return (props & $$maskType);
     }
 
-    boolean isOtherLowercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherLowercase) != 0;
-    }
-
-    boolean isOtherUppercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherUppercase) != 0;
-    }
- 
     boolean isOtherAlphabetic(int ch) {
         int props = getPropertiesEx(ch);
         return (props & $$maskOtherAlphabetic) != 0;
@@ -503,13 +493,13 @@ class CharacterData01 extends CharacterData {
     }
 
     boolean isLowerCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.LOWERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.LOWERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherLowercase) != 0;
     }
 
     boolean isUpperCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.UPPERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.UPPERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherUppercase) != 0;
     }
 
     boolean isWhitespace(int ch) {

make/data/characterdata/CharacterData02.java.template

@@ -77,16 +77,6 @@ class CharacterData02 extends CharacterData {
         return props;
     }
 
-    boolean isOtherLowercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherLowercase) != 0;
-    }
-
-    boolean isOtherUppercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherUppercase) != 0;
-    }
-
     boolean isOtherAlphabetic(int ch) {
         int props = getPropertiesEx(ch);
         return (props & $$maskOtherAlphabetic) != 0;
@@ -222,15 +212,16 @@ class CharacterData02 extends CharacterData {
     }
 
     boolean isLowerCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.LOWERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.LOWERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherLowercase) != 0;
     }
 
     boolean isUpperCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.UPPERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.UPPERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherUppercase) != 0;
     }
 
+
     boolean isWhitespace(int ch) {
         return (getProperties(ch) & $$maskIdentifierInfo) == $$valueJavaWhitespace;
     }

make/data/characterdata/CharacterData03.java.template

@@ -77,16 +77,6 @@ class CharacterData03 extends CharacterData {
         return props;
     }
 
-    boolean isOtherLowercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherLowercase) != 0;
-    }
-
-    boolean isOtherUppercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherUppercase) != 0;
-    }
-
     boolean isOtherAlphabetic(int ch) {
         int props = getPropertiesEx(ch);
         return (props & $$maskOtherAlphabetic) != 0;
@@ -222,13 +212,13 @@ class CharacterData03 extends CharacterData {
     }
 
     boolean isLowerCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.LOWERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.LOWERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherLowercase) != 0;
     }
 
     boolean isUpperCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.UPPERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.UPPERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherUppercase) != 0;
     }
 
     boolean isWhitespace(int ch) {

make/data/characterdata/CharacterData0E.java.template

@@ -77,16 +77,6 @@ class CharacterData0E extends CharacterData {
         return props;
     }
 
-    boolean isOtherLowercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherLowercase) != 0;
-    }
-
-    boolean isOtherUppercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherUppercase) != 0;
-    }
-
     boolean isOtherAlphabetic(int ch) {
         int props = getPropertiesEx(ch);
         return (props & $$maskOtherAlphabetic) != 0;
@@ -222,13 +212,13 @@ class CharacterData0E extends CharacterData {
     }
 
     boolean isLowerCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.LOWERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.LOWERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherLowercase) != 0;
     }
 
     boolean isUpperCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.UPPERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.UPPERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherUppercase) != 0;
     }
 
     boolean isWhitespace(int ch) {

make/data/characterdata/CharacterDataLatin1.java.template

@@ -87,24 +87,13 @@ class CharacterDataLatin1 extends CharacterData {
 
     @IntrinsicCandidate
     boolean isLowerCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.LOWERCASE_LETTER;
+        return (getProperties(ch) & $$maskType) == Character.LOWERCASE_LETTER
+            || (getPropertiesEx(ch) & $$maskOtherLowercase) != 0; // 0xaa, 0xba
     }
 
     @IntrinsicCandidate
     boolean isUpperCase(int ch) {
-        int props = getProperties(ch);
-        return (props & $$maskType) == Character.UPPERCASE_LETTER;
-    }
-
-    boolean isOtherLowercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherLowercase) != 0;
-    }
-
-    boolean isOtherUppercase(int ch) {
-        int props = getPropertiesEx(ch);
-        return (props & $$maskOtherUppercase) != 0;
+        return (getProperties(ch) & $$maskType) == Character.UPPERCASE_LETTER;
     }
 
     boolean isOtherAlphabetic(int ch) {
@@ -290,6 +279,6 @@ class CharacterDataLatin1 extends CharacterData {
 
     static {
         $$Initializers
-    }        
+    }
 }
 

make/devkit/createJMHBundle.sh

@@ -26,7 +26,7 @@
 # Create a bundle in the build directory, containing what's needed to
 # build and run JMH microbenchmarks from the OpenJDK build.
 
-JMH_VERSION=1.26
+JMH_VERSION=1.28
 COMMONS_MATH3_VERSION=3.2
 JOPT_SIMPLE_VERSION=4.6
 

make/test/BuildMicrobenchmark.gmk

@@ -84,6 +84,7 @@ $(eval $(call SetupJavaCompilation, BUILD_INDIFY, \
 #### Compile Targets
 
 # Building microbenchmark requires the jdk.unsupported and java.management modules.
+# sun.security.util is required to compile Cache benchmark
 
 # Build microbenchmark suite for the current JDK
 $(eval $(call SetupJavaCompilation, BUILD_JDK_MICROBENCHMARK, \
@@ -93,6 +94,7 @@ $(eval $(call SetupJavaCompilation, BUILD_JDK_MICROBENCHMARK, \
     DISABLED_WARNINGS := processing rawtypes cast serial, \
     SRC := $(MICROBENCHMARK_SRC), \
     BIN := $(MICROBENCHMARK_CLASSES), \
+    JAVAC_FLAGS := --add-exports java.base/sun.security.util=ALL-UNNAMED, \
     JAVA_FLAGS := --add-modules jdk.unsupported --limit-modules java.management, \
 ))
 

modules.list

@@ -1,54 +0,0 @@
-java.base,
-java.compiler,
-java.datatransfer,
-java.desktop,
-java.instrument,
-java.logging,
-java.management,
-java.management.rmi,
-java.naming,
-java.net.http,
-java.prefs,
-java.rmi,
-java.scripting,
-java.se,
-java.security.jgss,
-java.security.sasl,
-java.smartcardio,
-java.sql,
-java.sql.rowset,
-java.transaction.xa,
-java.xml,
-java.xml.crypto,
-jdk.accessibility,
-jdk.aot,
-jdk.attach,
-jdk.charsets,
-jdk.compiler,
-jdk.crypto.cryptoki,
-jdk.crypto.ec,
-jdk.dynalink,
-jdk.httpserver,
-jdk.internal.ed,
-jdk.internal.le,
-jdk.internal.vm.ci,
-jdk.internal.vm.compiler,
-jdk.internal.vm.compiler.management,
-jdk.jdi,
-jdk.jdwp.agent,
-jdk.jfr,
-jdk.jsobject,
-jdk.localedata,
-jdk.management,
-jdk.management.agent,
-jdk.management.jfr,
-jdk.naming.dns,
-jdk.naming.rmi,
-jdk.net,
-jdk.sctp,
-jdk.security.auth,
-jdk.security.jgss,
-jdk.unsupported,
-jdk.xml.dom,
-jdk.zipfs,
-jdk.hotspot.agent

src/hotspot/cpu/aarch64/assembler_aarch64.hpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2014, 2020, Red Hat Inc. All rights reserved.
+ * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2021, Red Hat Inc. 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
@@ -2657,16 +2657,18 @@ public:
     f(sidx<<(int)T, 14, 11), f(1, 10), rf(Vn, 5), rf(Vd, 0);
   }
 
-#define INSN(NAME, op)                                                     \
-  void NAME(Register Rd, FloatRegister Vn, SIMD_RegVariant T, int idx) {   \
-    starti;                                                                \
-    f(0, 31), f(T==D ? 1:0, 30), f(0b001110000, 29, 21);                   \
-    f(((idx<<1)|1)<<(int)T, 20, 16), f(op, 15, 10);                        \
-    rf(Vn, 5), rf(Rd, 0);                                                  \
+#define INSN(NAME, cond, op1, op2)                                                      \
+  void NAME(Register Rd, FloatRegister Vn, SIMD_RegVariant T, int idx) {                \
+    starti;                                                                             \
+    assert(cond, "invalid register variant");                                           \
+    f(0, 31), f(op1, 30), f(0b001110000, 29, 21);                                       \
+    f(((idx << 1) | 1) << (int)T, 20, 16), f(op2, 15, 10);                              \
+    rf(Vn, 5), rf(Rd, 0);                                                               \
   }
 
-  INSN(umov, 0b001111);
-  INSN(smov, 0b001011);
+  INSN(umov, (T != Q), (T == D ? 1 : 0), 0b001111);
+  INSN(smov, (T < D),  1,                0b001011);
+
 #undef INSN
 
 #define INSN(NAME, opc, opc2, isSHR)                                    \
@@ -2685,6 +2687,7 @@ public:
      *   1xxx xxx       1D/2D,  shift = UInt(immh:immb) - 64            \
      *   (1D is RESERVED)                                               \
      */                                                                 \
+    assert(!isSHR || (isSHR && (shift != 0)), "Zero right shift");      \
     assert((1 << ((T>>1)+3)) > shift, "Invalid Shift value");           \
     int cVal = (1 << (((T >> 1) + 3) + (isSHR ? 1 : 0)));               \
     int encodedShift = isSHR ? cVal - shift : cVal + shift;             \

src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp

@@ -147,7 +147,7 @@ int StubAssembler::call_RT(Register oop_result1, Register metadata_result, addre
   if (arg1 == c_rarg2 || arg1 == c_rarg3 ||
       arg2 == c_rarg1 || arg2 == c_rarg3 ||
       arg3 == c_rarg1 || arg3 == c_rarg2) {
-    stp(arg3, arg2, Address(pre(sp, 2 * wordSize)));
+    stp(arg3, arg2, Address(pre(sp, -2 * wordSize)));
     stp(arg1, zr, Address(pre(sp, -2 * wordSize)));
     ldp(c_rarg1, zr, Address(post(sp, 2 * wordSize)));
     ldp(c_rarg3, c_rarg2, Address(post(sp, 2 * wordSize)));

src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp

@@ -527,6 +527,33 @@ public:
     orr(Vd, T, Vn, Vn);
   }
 
+  // AdvSIMD shift by immediate.
+  // These are "user friendly" variants which allow a shift count of 0.
+#define WRAP(INSN)                                                                \
+  void INSN(FloatRegister Vd, SIMD_Arrangement T, FloatRegister Vn, int shift) {  \
+    if (shift == 0) {                                                             \
+      SIMD_Arrangement arrange = (T & 1) == 0 ? T8B : T16B;                       \
+      Assembler::orr(Vd, arrange, Vn, Vn);                                        \
+    } else {                                                                      \
+      Assembler::INSN(Vd, T, Vn, shift);                                          \
+    }                                                                             \
+  }                                                                               \
+
+  WRAP(shl) WRAP(sshr) WRAP(ushr)
+#undef WRAP
+
+#define WRAP(INSN)                                                                \
+  void INSN(FloatRegister Vd, SIMD_Arrangement T, FloatRegister Vn, int shift) {  \
+    if (shift == 0) {                                                             \
+      Assembler::addv(Vd, T, Vd, Vn);                                             \
+    } else {                                                                      \
+      Assembler::INSN(Vd, T, Vn, shift);                                          \
+    }                                                                             \
+  }                                                                               \
+
+  WRAP(usra) WRAP(ssra)
+#undef WRAP
+
 public:
 
   // Generalized Test Bit And Branch, including a "far" variety which

src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp

@@ -240,15 +240,6 @@ bool SharedRuntime::is_wide_vector(int size) {
   return size > 8;
 }
 
-size_t SharedRuntime::trampoline_size() {
-  return 16;
-}
-
-void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
-  __ mov(rscratch1, destination);
-  __ br(rscratch1);
-}
-
 // The java_calling_convention describes stack locations as ideal slots on
 // a frame with no abi restrictions. Since we must observe abi restrictions
 // (like the placement of the register window) the slots must be biased by

src/hotspot/cpu/aarch64/vm_version_aarch64.cpp

@@ -95,6 +95,9 @@ void VM_Version::initialize() {
     SoftwarePrefetchHintDistance &= ~7;
   }
 
+  if (FLAG_IS_DEFAULT(ContendedPaddingWidth) && (dcache_line > ContendedPaddingWidth)) {
+      ContendedPaddingWidth = dcache_line;
+  }
 
   if (os::supports_map_sync()) {
     // if dcpop is available publish data cache line flush size via

src/hotspot/cpu/aarch64/vtableStubs_aarch64.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -70,7 +70,7 @@ VtableStub* VtableStubs::create_vtable_stub(int vtable_index) {
 #if (!defined(PRODUCT) && defined(COMPILER2))
   if (CountCompiledCalls) {
     __ lea(r16, ExternalAddress((address) SharedRuntime::nof_megamorphic_calls_addr()));
-    __ incrementw(Address(r16));
+    __ increment(Address(r16));
   }
 #endif
 
@@ -145,6 +145,7 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
   if (s == NULL) {
     return NULL;
   }
+
   // Count unused bytes in instruction sequences of variable size.
   // We add them to the computed buffer size in order to avoid
   // overflow in subsequently generated stubs.
@@ -159,7 +160,7 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
 #if (!defined(PRODUCT) && defined(COMPILER2))
   if (CountCompiledCalls) {
     __ lea(r10, ExternalAddress((address) SharedRuntime::nof_megamorphic_calls_addr()));
-    __ incrementw(Address(r10));
+    __ increment(Address(r10));
   }
 #endif
 

src/hotspot/cpu/arm/sharedRuntime_arm.cpp

@@ -251,16 +251,6 @@ bool SharedRuntime::is_wide_vector(int size) {
   return false;
 }
 
-size_t SharedRuntime::trampoline_size() {
-  return 16;
-}
-
-void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
-  InlinedAddress dest(destination);
-  __ indirect_jump(dest, Rtemp);
-  __ bind_literal(dest);
-}
-
 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
                                         VMRegPair *regs,
                                         VMRegPair *regs2,

src/hotspot/cpu/ppc/sharedRuntime_ppc.cpp

@@ -564,17 +564,6 @@ bool SharedRuntime::is_wide_vector(int size) {
   return size > 8;
 }
 
-size_t SharedRuntime::trampoline_size() {
-  return Assembler::load_const_size + 8;
-}
-
-void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
-  Register Rtemp = R12;
-  __ load_const(Rtemp, destination);
-  __ mtctr(Rtemp);
-  __ bctr();
-}
-
 static int reg2slot(VMReg r) {
   return r->reg2stack() + SharedRuntime::out_preserve_stack_slots();
 }

src/hotspot/cpu/ppc/vtableStubs_ppc_64.cpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2018 SAP SE. All rights reserved.
+ * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2021 SAP SE. 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
@@ -73,9 +73,9 @@ VtableStub* VtableStubs::create_vtable_stub(int vtable_index) {
     slop_delta  = load_const_maxLen - (__ pc() - start_pc);
     slop_bytes += slop_delta;
     assert(slop_delta >= 0, "negative slop(%d) encountered, adjust code size estimate!", slop_delta);
-    __ lwz(R12_scratch2, offs, R11_scratch1);
+    __ ld(R12_scratch2, offs, R11_scratch1);
     __ addi(R12_scratch2, R12_scratch2, 1);
-    __ stw(R12_scratch2, offs, R11_scratch1);
+    __ std(R12_scratch2, offs, R11_scratch1);
   }
 #endif
 
@@ -141,6 +141,7 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
   if (s == NULL) {
     return NULL;
   }
+
   // Count unused bytes in instruction sequences of variable size.
   // We add them to the computed buffer size in order to avoid
   // overflow in subsequently generated stubs.
@@ -160,9 +161,9 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
     slop_delta  = load_const_maxLen - (__ pc() - start_pc);
     slop_bytes += slop_delta;
     assert(slop_delta >= 0, "negative slop(%d) encountered, adjust code size estimate!", slop_delta);
-    __ lwz(R12_scratch2, offs, R11_scratch1);
+    __ ld(R12_scratch2, offs, R11_scratch1);
     __ addi(R12_scratch2, R12_scratch2, 1);
-    __ stw(R12_scratch2, offs, R11_scratch1);
+    __ std(R12_scratch2, offs, R11_scratch1);
   }
 #endif
 

src/hotspot/cpu/s390/macroAssembler_s390.cpp

@@ -3603,6 +3603,7 @@ void MacroAssembler::encode_klass_not_null(Register dst, Register src) {
   Register current = (src != noreg) ? src : dst; // Klass is in dst if no src provided. (dst == src) also possible.
   address  base    = CompressedKlassPointers::base();
   int      shift   = CompressedKlassPointers::shift();
+  bool     need_zero_extend = base != 0;
   assert(UseCompressedClassPointers, "only for compressed klass ptrs");
 
   BLOCK_COMMENT("cKlass encoder {");
@@ -3619,28 +3620,76 @@ void MacroAssembler::encode_klass_not_null(Register dst, Register src) {
   bind(ok);
 #endif
 
-  if (base != NULL) {
-    unsigned int base_h = ((unsigned long)base)>>32;
-    unsigned int base_l = (unsigned int)((unsigned long)base);
-    if ((base_h != 0) && (base_l == 0) && VM_Version::has_HighWordInstr()) {
-      lgr_if_needed(dst, current);
-      z_aih(dst, -((int)base_h));     // Base has no set bits in lower half.
-    } else if ((base_h == 0) && (base_l != 0)) {
-      lgr_if_needed(dst, current);
-      z_agfi(dst, -(int)base_l);
-    } else {
-      load_const(Z_R0, base);
-      lgr_if_needed(dst, current);
-      z_sgr(dst, Z_R0);
-    }
-    current = dst;
-  }
+  // Scale down the incoming klass pointer first.
+  // We then can be sure we calculate an offset that fits into 32 bit.
+  // More generally speaking: all subsequent calculations are purely 32-bit.
   if (shift != 0) {
     assert (LogKlassAlignmentInBytes == shift, "decode alg wrong");
     z_srlg(dst, current, shift);
     current = dst;
   }
-  lgr_if_needed(dst, current); // Move may be required (if neither base nor shift != 0).
+
+  if (base != NULL) {
+    // Use scaled-down base address parts to match scaled-down klass pointer.
+    unsigned int base_h = ((unsigned long)base)>>(32+shift);
+    unsigned int base_l = (unsigned int)(((unsigned long)base)>>shift);
+
+    // General considerations:
+    //  - when calculating (current_h - base_h), all digits must cancel (become 0).
+    //    Otherwise, we would end up with a compressed klass pointer which doesn't
+    //    fit into 32-bit.
+    //  - Only bit#33 of the difference could potentially be non-zero. For that
+    //    to happen, (current_l < base_l) must hold. In this case, the subtraction
+    //    will create a borrow out of bit#32, nicely killing bit#33.
+    //  - With the above, we only need to consider current_l and base_l to
+    //    calculate the result.
+    //  - Both values are treated as unsigned. The unsigned subtraction is
+    //    replaced by adding (unsigned) the 2's complement of the subtrahend.
+
+    if (base_l == 0) {
+      //  - By theory, the calculation to be performed here (current_h - base_h) MUST
+      //    cancel all high-word bits. Otherwise, we would end up with an offset
+      //    (i.e. compressed klass pointer) that does not fit into 32 bit.
+      //  - current_l remains unchanged.
+      //  - Therefore, we can replace all calculation with just a
+      //    zero-extending load 32 to 64 bit.
+      //  - Even that can be replaced with a conditional load if dst != current.
+      //    (this is a local view. The shift step may have requested zero-extension).
+    } else {
+      if ((base_h == 0) && is_uimm(base_l, 31)) {
+        // If we happen to find that (base_h == 0), and that base_l is within the range
+        // which can be represented by a signed int, then we can use 64bit signed add with
+        // (-base_l) as 32bit signed immediate operand. The add will take care of the
+        // upper 32 bits of the result, saving us the need of an extra zero extension.
+        // For base_l to be in the required range, it must not have the most significant
+        // bit (aka sign bit) set.
+        lgr_if_needed(dst, current); // no zero/sign extension in this case!
+        z_agfi(dst, -(int)base_l);   // base_l must be passed as signed.
+        need_zero_extend = false;
+        current = dst;
+      } else {
+        // To begin with, we may need to copy and/or zero-extend the register operand.
+        // We have to calculate (current_l - base_l). Because there is no unsigend
+        // subtract instruction with immediate operand, we add the 2's complement of base_l.
+        if (need_zero_extend) {
+          z_llgfr(dst, current);
+          need_zero_extend = false;
+        } else {
+          llgfr_if_needed(dst, current);
+        }
+        current = dst;
+        z_alfi(dst, -base_l);
+      }
+    }
+  }
+
+  if (need_zero_extend) {
+    // We must zero-extend the calculated result. It may have some leftover bits in
+    // the hi-word because we only did optimized calculations.
+    z_llgfr(dst, current);
+  } else {
+    llgfr_if_needed(dst, current); // zero-extension while copying comes at no extra cost.
+  }
 
   BLOCK_COMMENT("} cKlass encoder");
 }

src/hotspot/cpu/s390/sharedRuntime_s390.cpp

@@ -556,16 +556,6 @@ void RegisterSaver::restore_result_registers(MacroAssembler* masm) {
   }
 }
 
-size_t SharedRuntime::trampoline_size() {
-  return MacroAssembler::load_const_size() + 2;
-}
-
-void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
-  // Think about using pc-relative branch.
-  __ load_const(Z_R1_scratch, destination);
-  __ z_br(Z_R1_scratch);
-}
-
 // ---------------------------------------------------------------------------
 void SharedRuntime::save_native_result(MacroAssembler * masm,
                                        BasicType ret_type,

src/hotspot/cpu/s390/vtableStubs_s390.cpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2016, 2018 SAP SE. All rights reserved.
+ * Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2021 SAP SE. 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
@@ -75,7 +75,7 @@ VtableStub* VtableStubs::create_vtable_stub(int vtable_index) {
     // Abuse Z_method as scratch register for generic emitter.
     // It is loaded further down anyway before it is first used.
     // No dynamic code size variance here, increment is 1, always.
-    __ add2mem_32(Address(Z_R1_scratch), 1, Z_method);
+    __ add2mem_64(Address(Z_R1_scratch), 1, Z_method);
   }
 #endif
 
@@ -158,6 +158,7 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
   if (s == NULL) {
     return NULL;
   }
+
   // Count unused bytes in instruction sequences of variable size.
   // We add them to the computed buffer size in order to avoid
   // overflow in subsequently generated stubs.
@@ -179,7 +180,7 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
     // Abuse Z_method as scratch register for generic emitter.
     // It is loaded further down anyway before it is first used.
     // No dynamic code size variance here, increment is 1, always.
-    __ add2mem_32(Address(Z_R1_scratch), 1, Z_method);
+    __ add2mem_64(Address(Z_R1_scratch), 1, Z_method);
   }
 #endif
 

src/hotspot/cpu/x86/sharedRuntime_x86_32.cpp

@@ -371,14 +371,6 @@ bool SharedRuntime::is_wide_vector(int size) {
   return size > 16;
 }
 
-size_t SharedRuntime::trampoline_size() {
-  return 16;
-}
-
-void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
-  __ jump(RuntimeAddress(destination));
-}
-
 // The java_calling_convention describes stack locations as ideal slots on
 // a frame with no abi restrictions. Since we must observe abi restrictions
 // (like the placement of the register window) the slots must be biased by

src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp

@@ -423,14 +423,6 @@ bool SharedRuntime::is_wide_vector(int size) {
   return size > 16;
 }
 
-size_t SharedRuntime::trampoline_size() {
-  return 16;
-}
-
-void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
-  __ jump(RuntimeAddress(destination));
-}
-
 // The java_calling_convention describes stack locations as ideal slots on
 // a frame with no abi restrictions. Since we must observe abi restrictions
 // (like the placement of the register window) the slots must be biased by

src/hotspot/cpu/x86/vtableStubs_x86_64.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 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
@@ -70,7 +70,7 @@ VtableStub* VtableStubs::create_vtable_stub(int vtable_index) {
 
 #if (!defined(PRODUCT) && defined(COMPILER2))
   if (CountCompiledCalls) {
-    __ incrementl(ExternalAddress((address) SharedRuntime::nof_megamorphic_calls_addr()));
+    __ incrementq(ExternalAddress((address) SharedRuntime::nof_megamorphic_calls_addr()));
   }
 #endif
 
@@ -148,6 +148,7 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
   if (s == NULL) {
     return NULL;
   }
+
   // Count unused bytes in instruction sequences of variable size.
   // We add them to the computed buffer size in order to avoid
   // overflow in subsequently generated stubs.
@@ -163,7 +164,7 @@ VtableStub* VtableStubs::create_itable_stub(int itable_index) {
 
 #if (!defined(PRODUCT) && defined(COMPILER2))
   if (CountCompiledCalls) {
-    __ incrementl(ExternalAddress((address) SharedRuntime::nof_megamorphic_calls_addr()));
+    __ incrementq(ExternalAddress((address) SharedRuntime::nof_megamorphic_calls_addr()));
   }
 #endif // PRODUCT
 

src/hotspot/cpu/zero/sharedRuntime_zero.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -119,16 +119,6 @@ RuntimeStub* SharedRuntime::generate_resolve_blob(address destination, const cha
   return generate_empty_runtime_stub("resolve_blob");
 }
 
-size_t SharedRuntime::trampoline_size() {
-  ShouldNotCallThis();
-  return 0;
-}
-
-void SharedRuntime::generate_trampoline(MacroAssembler *masm, address destination) {
-  ShouldNotCallThis();
-  return;
-}
-
 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
                                          VMRegPair *regs,
                                          VMRegPair *regs2,

src/hotspot/os/aix/os_aix.cpp

@@ -62,7 +62,7 @@
 #include "runtime/os.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
-#include "runtime/safefetch.hpp"
+#include "runtime/safefetch.inline.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/statSampler.hpp"
 #include "runtime/thread.inline.hpp"
@@ -108,7 +108,6 @@
 #include <sys/types.h>
 #include <sys/utsname.h>
 #include <sys/vminfo.h>
-#include <sys/wait.h>
 
 // Missing prototypes for various system APIs.
 extern "C"
@@ -3150,64 +3149,6 @@ size_t os::current_stack_size() {
   return s;
 }
 
-extern char** environ;
-
-// Run the specified command in a separate process. Return its exit value,
-// or -1 on failure (e.g. can't fork a new process).
-// Unlike system(), this function can be called from signal handler. It
-// doesn't block SIGINT et al.
-int os::fork_and_exec(char* cmd, bool use_vfork_if_available) {
-  char* argv[4] = { (char*)"sh", (char*)"-c", cmd, NULL};
-
-  pid_t pid = fork();
-
-  if (pid < 0) {
-    // fork failed
-    return -1;
-
-  } else if (pid == 0) {
-    // child process
-
-    // Try to be consistent with system(), which uses "/usr/bin/sh" on AIX.
-    execve("/usr/bin/sh", argv, environ);
-
-    // execve failed
-    _exit(-1);
-
-  } else {
-    // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't
-    // care about the actual exit code, for now.
-
-    int status;
-
-    // Wait for the child process to exit. This returns immediately if
-    // the child has already exited. */
-    while (waitpid(pid, &status, 0) < 0) {
-      switch (errno) {
-        case ECHILD: return 0;
-        case EINTR: break;
-        default: return -1;
-      }
-    }
-
-    if (WIFEXITED(status)) {
-      // The child exited normally; get its exit code.
-      return WEXITSTATUS(status);
-    } else if (WIFSIGNALED(status)) {
-      // The child exited because of a signal.
-      // The best value to return is 0x80 + signal number,
-      // because that is what all Unix shells do, and because
-      // it allows callers to distinguish between process exit and
-      // process death by signal.
-      return 0x80 + WTERMSIG(status);
-    } else {
-      // Unknown exit code; pass it through.
-      return status;
-    }
-  }
-  return -1;
-}
-
 // Get the default path to the core file
 // Returns the length of the string
 int os::get_core_path(char* buffer, size_t bufferSize) {
@@ -3224,12 +3165,6 @@ int os::get_core_path(char* buffer, size_t bufferSize) {
   return strlen(buffer);
 }
 
-#ifndef PRODUCT
-void TestReserveMemorySpecial_test() {
-  // No tests available for this platform
-}
-#endif
-
 bool os::start_debugging(char *buf, int buflen) {
   int len = (int)strlen(buf);
   char *p = &buf[len];

src/hotspot/os/bsd/os_bsd.cpp

@@ -93,7 +93,6 @@
 # include <sys/time.h>
 # include <sys/times.h>
 # include <sys/types.h>
-# include <sys/wait.h>
 # include <time.h>
 # include <unistd.h>
 
@@ -1411,7 +1410,7 @@ void os::print_os_info_brief(outputStream* st) {
 }
 
 void os::print_os_info(outputStream* st) {
-  st->print("OS:");
+  st->print_cr("OS:");
 
   os::Posix::print_uname_info(st);
 
@@ -2610,80 +2609,6 @@ void os::pause() {
   }
 }
 
-// Darwin has no "environ" in a dynamic library.
-#ifdef __APPLE__
-  #include <crt_externs.h>
-  #define environ (*_NSGetEnviron())
-#else
-extern char** environ;
-#endif
-
-// Run the specified command in a separate process. Return its exit value,
-// or -1 on failure (e.g. can't fork a new process).
-// Unlike system(), this function can be called from signal handler. It
-// doesn't block SIGINT et al.
-int os::fork_and_exec(char* cmd, bool use_vfork_if_available) {
-  const char * argv[4] = {"sh", "-c", cmd, NULL};
-
-  // fork() in BsdThreads/NPTL is not async-safe. It needs to run
-  // pthread_atfork handlers and reset pthread library. All we need is a
-  // separate process to execve. Make a direct syscall to fork process.
-  // On IA64 there's no fork syscall, we have to use fork() and hope for
-  // the best...
-  pid_t pid = fork();
-
-  if (pid < 0) {
-    // fork failed
-    return -1;
-
-  } else if (pid == 0) {
-    // child process
-
-    // execve() in BsdThreads will call pthread_kill_other_threads_np()
-    // first to kill every thread on the thread list. Because this list is
-    // not reset by fork() (see notes above), execve() will instead kill
-    // every thread in the parent process. We know this is the only thread
-    // in the new process, so make a system call directly.
-    // IA64 should use normal execve() from glibc to match the glibc fork()
-    // above.
-    execve("/bin/sh", (char* const*)argv, environ);
-
-    // execve failed
-    _exit(-1);
-
-  } else  {
-    // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't
-    // care about the actual exit code, for now.
-
-    int status;
-
-    // Wait for the child process to exit.  This returns immediately if
-    // the child has already exited. */
-    while (waitpid(pid, &status, 0) < 0) {
-      switch (errno) {
-      case ECHILD: return 0;
-      case EINTR: break;
-      default: return -1;
-      }
-    }
-
-    if (WIFEXITED(status)) {
-      // The child exited normally; get its exit code.
-      return WEXITSTATUS(status);
-    } else if (WIFSIGNALED(status)) {
-      // The child exited because of a signal
-      // The best value to return is 0x80 + signal number,
-      // because that is what all Unix shells do, and because
-      // it allows callers to distinguish between process exit and
-      // process death by signal.
-      return 0x80 + WTERMSIG(status);
-    } else {
-      // Unknown exit code; pass it through
-      return status;
-    }
-  }
-}
-
 // Get the kern.corefile setting, or otherwise the default path to the core file
 // Returns the length of the string
 int os::get_core_path(char* buffer, size_t bufferSize) {
@@ -2718,12 +2643,6 @@ bool os::supports_map_sync() {
   return false;
 }
 
-#ifndef PRODUCT
-void TestReserveMemorySpecial_test() {
-  // No tests available for this platform
-}
-#endif
-
 bool os::start_debugging(char *buf, int buflen) {
   int len = (int)strlen(buf);
   char *p = &buf[len];

src/hotspot/os/linux/gc/z/zPhysicalMemoryBacking_linux.cpp

@@ -34,7 +34,7 @@
 #include "logging/log.hpp"
 #include "runtime/init.hpp"
 #include "runtime/os.hpp"
-#include "runtime/safefetch.hpp"
+#include "runtime/safefetch.inline.hpp"
 #include "utilities/align.hpp"
 #include "utilities/debug.hpp"
 #include "utilities/growableArray.hpp"

src/hotspot/os/linux/os_linux.cpp

@@ -97,7 +97,6 @@
 # include <sys/times.h>
 # include <sys/utsname.h>
 # include <sys/socket.h>
-# include <sys/wait.h>
 # include <pwd.h>
 # include <poll.h>
 # include <fcntl.h>
@@ -5219,68 +5218,6 @@ void os::pause() {
   }
 }
 
-extern char** environ;
-
-// Run the specified command in a separate process. Return its exit value,
-// or -1 on failure (e.g. can't fork a new process).
-// Unlike system(), this function can be called from signal handler. It
-// doesn't block SIGINT et al.
-int os::fork_and_exec(char* cmd, bool use_vfork_if_available) {
-  const char * argv[4] = {"sh", "-c", cmd, NULL};
-
-  pid_t pid ;
-
-  if (use_vfork_if_available) {
-    pid = vfork();
-  } else {
-    pid = fork();
-  }
-
-  if (pid < 0) {
-    // fork failed
-    return -1;
-
-  } else if (pid == 0) {
-    // child process
-
-    execve("/bin/sh", (char* const*)argv, environ);
-
-    // execve failed
-    _exit(-1);
-
-  } else  {
-    // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't
-    // care about the actual exit code, for now.
-
-    int status;
-
-    // Wait for the child process to exit.  This returns immediately if
-    // the child has already exited. */
-    while (waitpid(pid, &status, 0) < 0) {
-      switch (errno) {
-      case ECHILD: return 0;
-      case EINTR: break;
-      default: return -1;
-      }
-    }
-
-    if (WIFEXITED(status)) {
-      // The child exited normally; get its exit code.
-      return WEXITSTATUS(status);
-    } else if (WIFSIGNALED(status)) {
-      // The child exited because of a signal
-      // The best value to return is 0x80 + signal number,
-      // because that is what all Unix shells do, and because
-      // it allows callers to distinguish between process exit and
-      // process death by signal.
-      return 0x80 + WTERMSIG(status);
-    } else {
-      // Unknown exit code; pass it through
-      return status;
-    }
-  }
-}
-
 // Get the default path to the core file
 // Returns the length of the string
 int os::get_core_path(char* buffer, size_t bufferSize) {
@@ -5535,172 +5472,3 @@ void os::print_memory_mappings(char* addr, size_t bytes, outputStream* st) {
     st->cr();
   }
 }
-
-/////////////// Unit tests ///////////////
-
-#ifndef PRODUCT
-
-class TestReserveMemorySpecial : AllStatic {
- public:
-  static void small_page_write(void* addr, size_t size) {
-    size_t page_size = os::vm_page_size();
-
-    char* end = (char*)addr + size;
-    for (char* p = (char*)addr; p < end; p += page_size) {
-      *p = 1;
-    }
-  }
-
-  static void test_reserve_memory_special_huge_tlbfs_only(size_t size) {
-    if (!UseHugeTLBFS) {
-      return;
-    }
-
-    char* addr = os::Linux::reserve_memory_special_huge_tlbfs_only(size, NULL, false);
-
-    if (addr != NULL) {
-      small_page_write(addr, size);
-
-      os::Linux::release_memory_special_huge_tlbfs(addr, size);
-    }
-  }
-
-  static void test_reserve_memory_special_huge_tlbfs_only() {
-    if (!UseHugeTLBFS) {
-      return;
-    }
-
-    size_t lp = os::large_page_size();
-
-    for (size_t size = lp; size <= lp * 10; size += lp) {
-      test_reserve_memory_special_huge_tlbfs_only(size);
-    }
-  }
-
-  static void test_reserve_memory_special_huge_tlbfs_mixed() {
-    size_t lp = os::large_page_size();
-    size_t ag = os::vm_allocation_granularity();
-
-    // sizes to test
-    const size_t sizes[] = {
-      lp, lp + ag, lp + lp / 2, lp * 2,
-      lp * 2 + ag, lp * 2 - ag, lp * 2 + lp / 2,
-      lp * 10, lp * 10 + lp / 2
-    };
-    const int num_sizes = sizeof(sizes) / sizeof(size_t);
-
-    // For each size/alignment combination, we test three scenarios:
-    // 1) with req_addr == NULL
-    // 2) with a non-null req_addr at which we expect to successfully allocate
-    // 3) with a non-null req_addr which contains a pre-existing mapping, at which we
-    //    expect the allocation to either fail or to ignore req_addr
-
-    // Pre-allocate two areas; they shall be as large as the largest allocation
-    //  and aligned to the largest alignment we will be testing.
-    const size_t mapping_size = sizes[num_sizes - 1] * 2;
-    char* const mapping1 = (char*) ::mmap(NULL, mapping_size,
-      PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,
-      -1, 0);
-    assert(mapping1 != MAP_FAILED, "should work");
-
-    char* const mapping2 = (char*) ::mmap(NULL, mapping_size,
-      PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,
-      -1, 0);
-    assert(mapping2 != MAP_FAILED, "should work");
-
-    // Unmap the first mapping, but leave the second mapping intact: the first
-    // mapping will serve as a value for a "good" req_addr (case 2). The second
-    // mapping, still intact, as "bad" req_addr (case 3).
-    ::munmap(mapping1, mapping_size);
-
-    // Case 1
-    for (int i = 0; i < num_sizes; i++) {
-      const size_t size = sizes[i];
-      for (size_t alignment = ag; is_aligned(size, alignment); alignment *= 2) {
-        char* p = os::Linux::reserve_memory_special_huge_tlbfs_mixed(size, alignment, NULL, false);
-        if (p != NULL) {
-          assert(is_aligned(p, alignment), "must be");
-          small_page_write(p, size);
-          os::Linux::release_memory_special_huge_tlbfs(p, size);
-        }
-      }
-    }
-
-    // Case 2
-    for (int i = 0; i < num_sizes; i++) {
-      const size_t size = sizes[i];
-      for (size_t alignment = ag; is_aligned(size, alignment); alignment *= 2) {
-        char* const req_addr = align_up(mapping1, alignment);
-        char* p = os::Linux::reserve_memory_special_huge_tlbfs_mixed(size, alignment, req_addr, false);
-        if (p != NULL) {
-          assert(p == req_addr, "must be");
-          small_page_write(p, size);
-          os::Linux::release_memory_special_huge_tlbfs(p, size);
-        }
-      }
-    }
-
-    // Case 3
-    for (int i = 0; i < num_sizes; i++) {
-      const size_t size = sizes[i];
-      for (size_t alignment = ag; is_aligned(size, alignment); alignment *= 2) {
-        char* const req_addr = align_up(mapping2, alignment);
-        char* p = os::Linux::reserve_memory_special_huge_tlbfs_mixed(size, alignment, req_addr, false);
-        // as the area around req_addr contains already existing mappings, the API should always
-        // return NULL (as per contract, it cannot return another address)
-        assert(p == NULL, "must be");
-      }
-    }
-
-    ::munmap(mapping2, mapping_size);
-
-  }
-
-  static void test_reserve_memory_special_huge_tlbfs() {
-    if (!UseHugeTLBFS) {
-      return;
-    }
-
-    test_reserve_memory_special_huge_tlbfs_only();
-    test_reserve_memory_special_huge_tlbfs_mixed();
-  }
-
-  static void test_reserve_memory_special_shm(size_t size, size_t alignment) {
-    if (!UseSHM) {
-      return;
-    }
-
-    char* addr = os::Linux::reserve_memory_special_shm(size, alignment, NULL, false);
-
-    if (addr != NULL) {
-      assert(is_aligned(addr, alignment), "Check");
-      assert(is_aligned(addr, os::large_page_size()), "Check");
-
-      small_page_write(addr, size);
-
-      os::Linux::release_memory_special_shm(addr, size);
-    }
-  }
-
-  static void test_reserve_memory_special_shm() {
-    size_t lp = os::large_page_size();
-    size_t ag = os::vm_allocation_granularity();
-
-    for (size_t size = ag; size < lp * 3; size += ag) {
-      for (size_t alignment = ag; is_aligned(size, alignment); alignment *= 2) {
-        test_reserve_memory_special_shm(size, alignment);
-      }
-    }
-  }
-
-  static void test() {
-    test_reserve_memory_special_huge_tlbfs();
-    test_reserve_memory_special_shm();
-  }
-};
-
-void TestReserveMemorySpecial_test() {
-  TestReserveMemorySpecial::test();
-}
-
-#endif

src/hotspot/os/posix/os_posix.cpp

@@ -51,11 +51,17 @@
 #include <signal.h>
 #include <sys/mman.h>
 #include <sys/resource.h>
+#include <sys/types.h>
 #include <sys/utsname.h>
+#include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 #include <utmpx.h>
 
+#ifdef __APPLE__
+  #include <crt_externs.h>
+#endif
+
 #define ROOT_UID 0
 
 #ifndef MAP_ANONYMOUS
@@ -1765,3 +1771,75 @@ int os::PlatformMonitor::wait(jlong millis) {
     return OS_OK;
   }
 }
+
+// Darwin has no "environ" in a dynamic library.
+#ifdef __APPLE__
+  #define environ (*_NSGetEnviron())
+#else
+  extern char** environ;
+#endif
+
+char** os::get_environ() { return environ; }
+
+// Run the specified command in a separate process. Return its exit value,
+// or -1 on failure (e.g. can't fork a new process).
+// Notes: -Unlike system(), this function can be called from signal handler. It
+//         doesn't block SIGINT et al.
+//        -this function is unsafe to use in non-error situations, mainly
+//         because the child process will inherit all parent descriptors.
+int os::fork_and_exec(const char* cmd, bool prefer_vfork) {
+  const char * argv[4] = {"sh", "-c", cmd, NULL};
+
+  pid_t pid ;
+
+  char** env = os::get_environ();
+
+  // Use always vfork on AIX, since its safe and helps with analyzing OOM situations.
+  // Otherwise leave it up to the caller.
+  AIX_ONLY(prefer_vfork = true;)
+  pid = prefer_vfork ? ::vfork() : ::fork();
+
+  if (pid < 0) {
+    // fork failed
+    return -1;
+
+  } else if (pid == 0) {
+    // child process
+
+    ::execve("/bin/sh", (char* const*)argv, env);
+
+    // execve failed
+    ::_exit(-1);
+
+  } else  {
+    // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't
+    // care about the actual exit code, for now.
+
+    int status;
+
+    // Wait for the child process to exit.  This returns immediately if
+    // the child has already exited. */
+    while (::waitpid(pid, &status, 0) < 0) {
+      switch (errno) {
+      case ECHILD: return 0;
+      case EINTR: break;
+      default: return -1;
+      }
+    }
+
+    if (WIFEXITED(status)) {
+      // The child exited normally; get its exit code.
+      return WEXITSTATUS(status);
+    } else if (WIFSIGNALED(status)) {
+      // The child exited because of a signal
+      // The best value to return is 0x80 + signal number,
+      // because that is what all Unix shells do, and because
+      // it allows callers to distinguish between process exit and
+      // process death by signal.
+      return 0x80 + WTERMSIG(status);
+    } else {
+      // Unknown exit code; pass it through
+      return status;
+    }
+  }
+}

src/hotspot/os/windows/os_windows.cpp

@@ -57,7 +57,7 @@
 #include "runtime/orderAccess.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
-#include "runtime/safefetch.hpp"
+#include "runtime/safefetch.inline.hpp"
 #include "runtime/safepointMechanism.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/statSampler.hpp"
@@ -266,6 +266,8 @@ bool os::unsetenv(const char* name) {
   return (SetEnvironmentVariable(name, NULL) == TRUE);
 }
 
+char** os::get_environ() { return _environ; }
+
 // No setuid programs under Windows.
 bool os::have_special_privileges() {
   return false;
@@ -5512,7 +5514,7 @@ int os::PlatformMonitor::wait(jlong millis) {
 
 // Run the specified command in a separate process. Return its exit value,
 // or -1 on failure (e.g. can't create a new process).
-int os::fork_and_exec(char* cmd, bool use_vfork_if_available) {
+int os::fork_and_exec(const char* cmd, bool dummy /* ignored */) {
   STARTUPINFO si;
   PROCESS_INFORMATION pi;
   DWORD exit_code;
@@ -5790,58 +5792,6 @@ char* os::build_agent_function_name(const char *sym_name, const char *lib_name,
   return agent_entry_name;
 }
 
-#ifndef PRODUCT
-
-// test the code path in reserve_memory_special() that tries to allocate memory in a single
-// contiguous memory block at a particular address.
-// The test first tries to find a good approximate address to allocate at by using the same
-// method to allocate some memory at any address. The test then tries to allocate memory in
-// the vicinity (not directly after it to avoid possible by-chance use of that location)
-// This is of course only some dodgy assumption, there is no guarantee that the vicinity of
-// the previously allocated memory is available for allocation. The only actual failure
-// that is reported is when the test tries to allocate at a particular location but gets a
-// different valid one. A NULL return value at this point is not considered an error but may
-// be legitimate.
-void TestReserveMemorySpecial_test() {
-  if (!UseLargePages) {
-    return;
-  }
-  // save current value of globals
-  bool old_use_large_pages_individual_allocation = UseLargePagesIndividualAllocation;
-  bool old_use_numa_interleaving = UseNUMAInterleaving;
-
-  // set globals to make sure we hit the correct code path
-  UseLargePagesIndividualAllocation = UseNUMAInterleaving = false;
-
-  // do an allocation at an address selected by the OS to get a good one.
-  const size_t large_allocation_size = os::large_page_size() * 4;
-  char* result = os::reserve_memory_special(large_allocation_size, os::large_page_size(), NULL, false);
-  if (result == NULL) {
-  } else {
-    os::release_memory_special(result, large_allocation_size);
-
-    // allocate another page within the recently allocated memory area which seems to be a good location. At least
-    // we managed to get it once.
-    const size_t expected_allocation_size = os::large_page_size();
-    char* expected_location = result + os::large_page_size();
-    char* actual_location = os::reserve_memory_special(expected_allocation_size, os::large_page_size(), expected_location, false);
-    if (actual_location == NULL) {
-    } else {
-      // release memory
-      os::release_memory_special(actual_location, expected_allocation_size);
-      // only now check, after releasing any memory to avoid any leaks.
-      assert(actual_location == expected_location,
-             "Failed to allocate memory at requested location " PTR_FORMAT " of size " SIZE_FORMAT ", is " PTR_FORMAT " instead",
-             expected_location, expected_allocation_size, actual_location);
-    }
-  }
-
-  // restore globals
-  UseLargePagesIndividualAllocation = old_use_large_pages_individual_allocation;
-  UseNUMAInterleaving = old_use_numa_interleaving;
-}
-#endif // PRODUCT
-
 /*
   All the defined signal names for Windows.
 

src/hotspot/os_cpu/bsd_x86/thread_bsd_x86.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 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
@@ -67,12 +67,6 @@ bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava)
       return false;
     }
 
-    if (MetaspaceShared::is_in_trampoline_frame(addr)) {
-      // In the middle of a trampoline call. Bail out for safety.
-      // This happens rarely so shouldn't affect profiling.
-      return false;
-    }
-
     frame ret_frame(ret_sp, ret_fp, addr);
     if (!ret_frame.safe_for_sender(this)) {
 #if COMPILER2_OR_JVMCI

src/hotspot/os_cpu/linux_aarch64/thread_linux_aarch64.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -68,12 +68,6 @@ bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava)
       return false;
     }
 
-    if (MetaspaceShared::is_in_trampoline_frame(addr)) {
-      // In the middle of a trampoline call. Bail out for safety.
-      // This happens rarely so shouldn't affect profiling.
-      return false;
-    }
-
     frame ret_frame(ret_sp, ret_fp, addr);
     if (!ret_frame.safe_for_sender(this)) {
 #ifdef COMPILER2

src/hotspot/os_cpu/linux_arm/thread_linux_arm.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 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
@@ -101,12 +101,6 @@ bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava)
       return false;
     }
 
-    if (MetaspaceShared::is_in_trampoline_frame(addr)) {
-      // In the middle of a trampoline call. Bail out for safety.
-      // This happens rarely so shouldn't affect profiling.
-      return false;
-    }
-
     frame ret_frame(ret_sp, ret_fp, addr);
     if (!ret_frame.safe_for_sender(this)) {
 #ifdef COMPILER2

src/hotspot/os_cpu/linux_x86/thread_linux_x86.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 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
@@ -68,12 +68,6 @@ bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava)
       return false;
     }
 
-    if (MetaspaceShared::is_in_trampoline_frame(addr)) {
-      // In the middle of a trampoline call. Bail out for safety.
-      // This happens rarely so shouldn't affect profiling.
-      return false;
-    }
-
     frame ret_frame(ret_sp, ret_fp, addr);
     if (!ret_frame.safe_for_sender(this)) {
 #if COMPILER2_OR_JVMCI

src/hotspot/os_cpu/windows_aarch64/thread_windows_aarch64.cpp

@@ -69,12 +69,6 @@ bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava)
       return false;
     }
 
-    if (MetaspaceShared::is_in_trampoline_frame(ret_frame.pc())) {
-      // In the middle of a trampoline call. Bail out for safety.
-      // This happens rarely so shouldn't affect profiling.
-      return false;
-    }
-
     if (!ret_frame.safe_for_sender(jt)) {
 #if COMPILER2_OR_JVMCI
       // C2 and JVMCI use ebp as a general register see if NULL fp helps

src/hotspot/os_cpu/windows_x86/thread_windows_x86.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 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
@@ -64,12 +64,6 @@ bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava)
       return false;
     }
 
-    if (MetaspaceShared::is_in_trampoline_frame(ret_frame.pc())) {
-      // In the middle of a trampoline call. Bail out for safety.
-      // This happens rarely so shouldn't affect profiling.
-      return false;
-    }
-
     if (!ret_frame.safe_for_sender(this)) {
 #if COMPILER2_OR_JVMCI
       // C2 and JVMCI use ebp as a general register see if NULL fp helps

src/hotspot/share/ci/ciInstanceKlass.cpp

@@ -727,7 +727,7 @@ void ciInstanceKlass::dump_replay_data(outputStream* out) {
   // Try to record related loaded classes
   Klass* sub = ik->subklass();
   while (sub != NULL) {
-    if (sub->is_instance_klass()) {
+    if (sub->is_instance_klass() && !sub->is_hidden() && !InstanceKlass::cast(sub)->is_unsafe_anonymous()) {
       out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
     }
     sub = sub->next_sibling();

src/hotspot/share/classfile/classFileStream.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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
@@ -45,7 +45,9 @@ ClassFileStream::ClassFileStream(const u1* buffer,
   _current(buffer),
   _source(source),
   _need_verify(verify_stream),
-  _from_boot_loader_modules_image(from_boot_loader_modules_image) {}
+  _from_boot_loader_modules_image(from_boot_loader_modules_image) {
+    assert(buffer != NULL, "caller should throw NPE");
+}
 
 const u1* ClassFileStream::clone_buffer() const {
   u1* const new_buffer_start = NEW_RESOURCE_ARRAY(u1, length());

src/hotspot/share/classfile/klassFactory.cpp

@@ -205,10 +205,7 @@ InstanceKlass* KlassFactory::create_from_stream(ClassFileStream* stream,
 
   const ClassInstanceInfo* cl_inst_info = cl_info.class_hidden_info_ptr();
   InstanceKlass* result = parser.create_instance_klass(old_stream != stream, *cl_inst_info, CHECK_NULL);
-
-  if (result == NULL) {
-    return NULL;
-  }
+  assert(result != NULL, "result cannot be null with no pending exception");
 
   if (cached_class_file != NULL) {
     // JVMTI: we have an InstanceKlass now, tell it about the cached bytes

src/hotspot/share/classfile/modules.cpp

@@ -100,13 +100,12 @@ static PackageEntryTable* get_package_entry_table(Handle h_loader) {
   return loader_cld->packages();
 }
 
-static ModuleEntry* get_module_entry(jobject module, TRAPS) {
-  oop m = JNIHandles::resolve_non_null(module);
-  if (!java_lang_Module::is_instance(m)) {
+static ModuleEntry* get_module_entry(Handle module, TRAPS) {
+  if (!java_lang_Module::is_instance(module())) {
     THROW_MSG_NULL(vmSymbols::java_lang_IllegalArgumentException(),
                    "module is not an instance of type java.lang.Module");
   }
-  return java_lang_Module::module_entry(m);
+  return java_lang_Module::module_entry(module());
 }
 
 
@@ -272,23 +271,22 @@ void throw_dup_pkg_exception(const char* module_name, PackageEntry* package, TRA
   }
 }
 
-void Modules::define_module(jobject module, jboolean is_open, jstring version,
+void Modules::define_module(Handle module, jboolean is_open, jstring version,
                             jstring location, jobjectArray packages, TRAPS) {
   check_cds_restrictions(CHECK);
   ResourceMark rm(THREAD);
 
-  if (module == NULL) {
+  if (module.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(), "Null module object");
   }
 
-  Handle module_handle(THREAD, JNIHandles::resolve_non_null(module));
-  if (!java_lang_Module::is_instance(module_handle())) {
+  if (!java_lang_Module::is_instance(module())) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "module is not an instance of type java.lang.Module");
   }
 
   int module_name_len;
-  char* module_name = get_module_name(module_handle(), module_name_len, CHECK);
+  char* module_name = get_module_name(module(), module_name_len, CHECK);
   if (module_name == NULL) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "Module name cannot be null");
@@ -301,11 +299,11 @@ void Modules::define_module(jobject module, jboolean is_open, jstring version,
   // Special handling of java.base definition
   if (strcmp(module_name, JAVA_BASE_NAME) == 0) {
     assert(is_open == JNI_FALSE, "java.base module cannot be open");
-    define_javabase_module(module_handle, version, location, packages_h, num_packages, CHECK);
+    define_javabase_module(module, version, location, packages_h, num_packages, CHECK);
     return;
   }
 
-  oop loader = java_lang_Module::loader(module_handle());
+  oop loader = java_lang_Module::loader(module());
   // Make sure loader is not the jdk.internal.reflect.DelegatingClassLoader.
   if (loader != java_lang_ClassLoader::non_reflection_class_loader(loader)) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
@@ -402,7 +400,7 @@ void Modules::define_module(jobject module, jboolean is_open, jstring version,
     if (!dupl_modules && existing_pkg == NULL) {
       if (module_table->lookup_only(module_symbol) == NULL) {
         // Create the entry for this module in the class loader's module entry table.
-        ModuleEntry* module_entry = module_table->locked_create_entry(module_handle,
+        ModuleEntry* module_entry = module_table->locked_create_entry(module,
                                     (is_open == JNI_TRUE), module_symbol,
                                     version_symbol, location_symbol, loader_data);
         assert(module_entry != NULL, "module_entry creation failed");
@@ -419,7 +417,7 @@ void Modules::define_module(jobject module, jboolean is_open, jstring version,
         }
 
         // Store pointer to ModuleEntry record in java.lang.Module object.
-        java_lang_Module::set_module_entry(module_handle(), module_entry);
+        java_lang_Module::set_module_entry(module(), module_entry);
       } else {
          dupl_modules = true;
       }
@@ -476,7 +474,7 @@ void Modules::define_module(jobject module, jboolean is_open, jstring version,
 }
 
 #if INCLUDE_CDS_JAVA_HEAP
-void Modules::define_archived_modules(jobject platform_loader, jobject system_loader, TRAPS) {
+void Modules::define_archived_modules(Handle h_platform_loader, Handle h_system_loader, TRAPS) {
   assert(UseSharedSpaces && MetaspaceShared::use_full_module_graph(), "must be");
 
   // We don't want the classes used by the archived full module graph to be redefined by JVMTI.
@@ -490,19 +488,17 @@ void Modules::define_archived_modules(jobject platform_loader, jobject system_lo
   // Patch any previously loaded class's module field with java.base's java.lang.Module.
   ModuleEntryTable::patch_javabase_entries(java_base_module);
 
-  if (platform_loader == NULL) {
+  if (h_platform_loader.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(), "Null platform loader object");
   }
 
-  if (system_loader == NULL) {
+  if (h_system_loader.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(), "Null system loader object");
   }
 
-  Handle h_platform_loader(THREAD, JNIHandles::resolve_non_null(platform_loader));
   ClassLoaderData* platform_loader_data = SystemDictionary::register_loader(h_platform_loader);
   ClassLoaderDataShared::restore_java_platform_loader_from_archive(platform_loader_data);
 
-  Handle h_system_loader(THREAD, JNIHandles::resolve_non_null(system_loader));
   ClassLoaderData* system_loader_data = SystemDictionary::register_loader(h_system_loader);
   ClassLoaderDataShared::restore_java_system_loader_from_archive(system_loader_data);
 }
@@ -515,27 +511,26 @@ void Modules::check_cds_restrictions(TRAPS) {
 }
 #endif // INCLUDE_CDS_JAVA_HEAP
 
-void Modules::set_bootloader_unnamed_module(jobject module, TRAPS) {
+void Modules::set_bootloader_unnamed_module(Handle module, TRAPS) {
   ResourceMark rm(THREAD);
 
-  if (module == NULL) {
+  if (module.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(), "Null module object");
   }
-  Handle module_handle(THREAD, JNIHandles::resolve(module));
-  if (!java_lang_Module::is_instance(module_handle())) {
+  if (!java_lang_Module::is_instance(module())) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "module is not an instance of type java.lang.Module");
   }
 
   // Ensure that this is an unnamed module
-  oop name = java_lang_Module::name(module_handle());
+  oop name = java_lang_Module::name(module());
   if (name != NULL) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "boot loader's unnamed module's java.lang.Module has a name");
   }
 
   // Validate java_base's loader is the boot loader.
-  oop loader = java_lang_Module::loader(module_handle());
+  oop loader = java_lang_Module::loader(module());
   if (loader != NULL) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
               "Class loader must be the boot class loader");
@@ -547,19 +542,19 @@ void Modules::set_bootloader_unnamed_module(jobject module, TRAPS) {
   ClassLoaderData* boot_loader_data = ClassLoaderData::the_null_class_loader_data();
   ModuleEntry* unnamed_module = boot_loader_data->unnamed_module();
   assert(unnamed_module != NULL, "boot loader's unnamed ModuleEntry not defined");
-  unnamed_module->set_module(boot_loader_data->add_handle(module_handle));
+  unnamed_module->set_module(boot_loader_data->add_handle(module));
   // Store pointer to the ModuleEntry in the unnamed module's java.lang.Module object.
-  java_lang_Module::set_module_entry(module_handle(), unnamed_module);
+  java_lang_Module::set_module_entry(module(), unnamed_module);
 }
 
-void Modules::add_module_exports(jobject from_module, jstring package_name, jobject to_module, TRAPS) {
+void Modules::add_module_exports(Handle from_module, jstring package_name, Handle to_module, TRAPS) {
   check_cds_restrictions(CHECK);
 
   if (package_name == NULL) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(),
               "package is null");
   }
-  if (from_module == NULL) {
+  if (from_module.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(),
               "from_module is null");
   }
@@ -573,7 +568,7 @@ void Modules::add_module_exports(jobject from_module, jstring package_name, jobj
   if (!from_module_entry->is_named() || from_module_entry->is_open()) return;
 
   ModuleEntry* to_module_entry;
-  if (to_module == NULL) {
+  if (to_module.is_null()) {
     to_module_entry = NULL;  // It's an unqualified export.
   } else {
     to_module_entry = get_module_entry(to_module, CHECK);
@@ -619,19 +614,19 @@ void Modules::add_module_exports(jobject from_module, jstring package_name, jobj
 }
 
 
-void Modules::add_module_exports_qualified(jobject from_module, jstring package,
-                                           jobject to_module, TRAPS) {
+void Modules::add_module_exports_qualified(Handle from_module, jstring package,
+                                           Handle to_module, TRAPS) {
   check_cds_restrictions(CHECK);
-  if (to_module == NULL) {
+  if (to_module.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(),
               "to_module is null");
   }
   add_module_exports(from_module, package, to_module, CHECK);
 }
 
-void Modules::add_reads_module(jobject from_module, jobject to_module, TRAPS) {
+void Modules::add_reads_module(Handle from_module, Handle to_module, TRAPS) {
   check_cds_restrictions(CHECK);
-  if (from_module == NULL) {
+  if (from_module.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(),
               "from_module is null");
   }
@@ -643,7 +638,7 @@ void Modules::add_reads_module(jobject from_module, jobject to_module, TRAPS) {
   }
 
   ModuleEntry* to_module_entry;
-  if (to_module != NULL) {
+  if (!to_module.is_null()) {
     to_module_entry = get_module_entry(to_module, CHECK);
     if (to_module_entry == NULL) {
       THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
@@ -735,9 +730,9 @@ jobject Modules::get_named_module(Handle h_loader, const char* package_name, TRA
 }
 
 // Export package in module to all unnamed modules.
-void Modules::add_module_exports_to_all_unnamed(jobject module, jstring package_name, TRAPS) {
+void Modules::add_module_exports_to_all_unnamed(Handle module, jstring package_name, TRAPS) {
   check_cds_restrictions(CHECK);
-  if (module == NULL) {
+  if (module.is_null()) {
     THROW_MSG(vmSymbols::java_lang_NullPointerException(),
               "module is null");
   }

src/hotspot/share/classfile/modules.hpp

@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
+* Copyright (c) 2016, 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
@@ -50,10 +50,10 @@ public:
   // * A package already exists in another module for this class loader
   // * Module is an unnamed module
   //  NullPointerExceptions are thrown if module is null.
-  static void define_module(jobject module, jboolean is_open, jstring version,
+  static void define_module(Handle module, jboolean is_open, jstring version,
                             jstring location, jobjectArray packages, TRAPS);
 
-  static void define_archived_modules(jobject platform_loader, jobject system_loader,
+  static void define_archived_modules(Handle h_platform_loader, Handle h_system_loader,
                                       TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
 
   // Provides the java.lang.Module for the unnamed module defined
@@ -64,7 +64,7 @@ public:
   //  * Module is not a subclass of java.lang.Module
   //  * Module's class loader is not the boot loader
   //  NullPointerExceptions are thrown if module is null.
-  static void set_bootloader_unnamed_module(jobject module, TRAPS);
+  static void set_bootloader_unnamed_module(Handle module, TRAPS);
 
   // This either does a qualified export of package in module from_module to module
   // to_module or, if to_module is null, does an unqualified export of package.
@@ -76,7 +76,7 @@ public:
   // * Package is not syntactically correct
   // * Package is not defined for from_module's class loader
   // * Package is not in module from_module.
-  static void add_module_exports(jobject from_module, jstring package, jobject to_module, TRAPS);
+  static void add_module_exports(Handle from_module, jstring package, Handle to_module, TRAPS);
 
   // This does a qualified export of package in module from_module to module
   // to_module.  Any "." in the package name will be converted to "/"
@@ -87,7 +87,7 @@ public:
   // * Package is not syntactically correct
   // * Package is not defined for from_module's class loader
   // * Package is not in module from_module.
-  static void add_module_exports_qualified(jobject from_module, jstring package, jobject to_module, TRAPS);
+  static void add_module_exports_qualified(Handle from_module, jstring package, Handle to_module, TRAPS);
 
   // add_reads_module adds module to_module to the list of modules that from_module
   // can read.  If from_module is the same as to_module then this is a no-op.
@@ -95,7 +95,7 @@ public:
   // from_module can read all current and future unnamed  modules).
   // An IllegalArgumentException is thrown if from_module is null or either (non-null)
   // module does not exist.
-  static void add_reads_module(jobject from_module, jobject to_module, TRAPS);
+  static void add_reads_module(Handle from_module, Handle to_module, TRAPS);
 
   // Return the java.lang.Module object for this class object.
   static jobject get_module(jclass clazz, TRAPS);
@@ -112,7 +112,7 @@ public:
   // If either module or package is null then NullPointerException is thrown.
   // If module or package is bad, or module is unnamed, or package is not in
   // module then IllegalArgumentException is thrown.
-  static void add_module_exports_to_all_unnamed(jobject module, jstring package, TRAPS);
+  static void add_module_exports_to_all_unnamed(Handle module, jstring package, TRAPS);
 
   // Return TRUE iff package is defined by loader
   static bool is_package_defined(Symbol* package_name, Handle h_loader, TRAPS);

src/hotspot/share/classfile/systemDictionary.cpp

@@ -990,8 +990,9 @@ InstanceKlass* SystemDictionary::parse_stream(Symbol* class_name,
                                                       loader_data,
                                                       cl_info,
                                                       CHECK_NULL);
+  assert(k != NULL, "no klass created");
 
-  if ((cl_info.is_hidden() || is_unsafe_anon_class) && k != NULL) {
+  if (cl_info.is_hidden() || is_unsafe_anon_class) {
     // Hidden classes that are not strong and unsafe anonymous classes must update
     // ClassLoaderData holder so that they can be unloaded when the mirror is no
     // longer referenced.
@@ -1035,7 +1036,8 @@ InstanceKlass* SystemDictionary::parse_stream(Symbol* class_name,
 // JVM_DefineClass).
 // Note: class_name can be NULL. In that case we do not know the name of
 // the class until we have parsed the stream.
-
+// This function either returns an InstanceKlass or throws an exception.  It does
+// not return NULL without a pending exception.
 InstanceKlass* SystemDictionary::resolve_from_stream(Symbol* class_name,
                                                      Handle class_loader,
                                                      Handle protection_domain,
@@ -1068,9 +1070,6 @@ InstanceKlass* SystemDictionary::resolve_from_stream(Symbol* class_name,
 #endif
 
   if (k == NULL) {
-    if (st->buffer() == NULL) {
-      return NULL;
-    }
     ClassLoadInfo cl_info(protection_domain);
     k = KlassFactory::create_from_stream(st, class_name, loader_data, cl_info, CHECK_NULL);
   }