JBR-2834 Typing happens in the editor when comparing editor to clipboard

Reviewed-by: rhalade, mschoene, serb, psadhukhan

.hgtags

@@ -610,6 +610,3 @@ e872676174c7f171a9864becba83cb783cfec9d0 jdk-11.0.9+9
 6ac1b68e7c0034e08a96d7d37e93e5075a6e8d61 jdk-11.0.9+10
 4397fa4529b2794ddcdf3445c0611fe383243fb4 jdk-11.0.9+11
 4397fa4529b2794ddcdf3445c0611fe383243fb4 jdk-11.0.9-ga
-4fd46d208f0a4b55924af8e0c2fb6bcf46e18ec6 jdk-11.0.9.1+0
-27723943c0dd65a191cbefe031cec001521e4b13 jdk-11.0.9.1+1
-31affc22b3b5f5d43783ffadf57f22848bad9db8 jdk-11.0.9.1-ga

.idea/vcs.xml

@@ -1,5 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="IssueNavigationConfiguration">
+    <option name="links">
+      <list>
+        <IssueNavigationLink>
+          <option name="issueRegexp" value="[A-Z]+\-\d+" />
+          <option name="linkRegexp" value="http://youtrack.jetbrains.com/issue/$0" />
+        </IssueNavigationLink>
+        <IssueNavigationLink>
+          <option name="issueRegexp" value="(\d+)\:" />
+          <option name="linkRegexp" value="https://bugs.openjdk.java.net/browse/JDK-$1" />
+        </IssueNavigationLink>
+      </list>
+    </option>
+  </component>
   <component name="VcsDirectoryMappings">
     <mapping directory="$PROJECT_DIR$" vcs="Git" />
   </component>

jb/project/docker/Dockerfile

@@ -8,6 +8,5 @@ RUN wget https://bintray.com/jetbrains/intellij-jbr/download_file?file_path=jbrs
 -O - | tar xz -C /
 ENV JAVA_HOME /jbrsdk
 ENV PATH $JAVA_HOME/bin:/opt/rh/devtoolset-8/root/usr/bin:$PATH
-RUN mkdir .git
-RUN git config user.email "builduser@jetbrains.com"
-RUN git config user.name "builduser"
+RUN git config --global user.email "teamcity@buildserver.intellij.net"
+RUN git config --global user.name "builduser"

jb/project/java-common.cmake

@@ -29,32 +29,43 @@ add_custom_target(configure_debug
         COMMAND bash configure --disable-warnings-as-errors --enable-debug
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/../../../)
 
+if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+  set(JDK_RELEASE_TARGET "linux-x86_64-normal-server-release")
+  set(JDK_DEBUG_TARGET "linux-x86_64-normal-server-fastdebug")
+endif ()
+
+if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+    set(JDK_RELEASE_TARGET "macosx-x86_64-normal-server-release")
+    set(JDK_DEBUG_TARGET "macosx-x86_64-normal-server-fastdebug")
+    add_compile_definitions(MACOSX)
+endif ()
+
 add_custom_target(build
-        COMMAND make CONF=macosx-x86_64-normal-server-release
+        COMMAND make CONF=${JDK_RELEASE_TARGET}
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/../../../
         DEPENDS ${SOURCE_FILES})
 
 add_custom_target(build_images
-        COMMAND make images CONF=macosx-x86_64-normal-server-release
+        COMMAND make images CONF=${JDK_RELEASE_TARGET}
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/../../../
         DEPENDS ${SOURCE_FILES})
 
 add_custom_target(build_debug
-        COMMAND make CONF=macosx-x86_64-normal-server-fastdebug
+        COMMAND make CONF=${JDK_DEBUG_TARGET}
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/../../../
         DEPENDS ${SOURCE_FILES})
 
 add_custom_target(build_images_debug
-        COMMAND make images CONF=macosx-x86_64-normal-server-fastdebug
+        COMMAND make images CONF=${JDK_DEBUG_TARGET}
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/../../../
         DEPENDS ${SOURCE_FILES})
 
 add_custom_target(make_clean
-        COMMAND make clean CONF=macosx-x86_64-normal-server-release
+        COMMAND make clean CONF=${JDK_RELEASE_TARGET}
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/../../../
         DEPENDS ${SOURCE_FILES})
 
 add_custom_target(make_clean_debug
-        COMMAND make clean CONF=macosx-x86_64-normal-server-fastdebug
+        COMMAND make clean CONF=${JDK_DEBUG_TARGET}
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/../../../
         DEPENDS ${SOURCE_FILES})

jb/project/tools/common.sh

@@ -1,3 +1,16 @@
 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
+}

jb/project/tools/linux/scripts/mkbundles_x64.sh

@@ -1,10 +0,0 @@
-#!/bin/bash -x
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-script_dir=jb/project/tools/linux/scripts
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jcef" || exit $?
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jfx" || exit $?
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jfx_jcef" || exit $?
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "dcevm" || exit $?

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

@@ -1,12 +1,16 @@
 #!/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
+#   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 bu built; possible values:
-#                        jcef - the bundles 1) jbr with jcef+javafx, 2) jbrsdk and 3) test will be created
-#                        jfx  - the bundle 1) jbr with javafx only will be created
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        jcef - the release bundles with jcef
+#                        jfx - the release bundles with javafx
+#                        jcef_jfx - the release bundles with jcef and javafx
+#                        dcevm - the release bundles with dcevm patches
+#                        nomod - the release bundles without any additional modules (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
@@ -16,119 +20,148 @@
 # 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:
+#   MODULAR_SDK_PATH - specifies the path to the directory where imported modules are located.
+#               By default imported modules should be located in ./modular-sdk
+#   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 $JBSDK_VERSION | sed 's/_/\./g')
+WITH_IMPORT_MODULES="--with-import-modules=${MODULAR_SDK_PATH:=./modular-sdk}"
+JCEF_PATH=${JCEF_PATH:=./jcef_linux_x64}
 
 source jb/project/tools/common.sh
 
 function create_jbr {
 
-  case "$1" in
-  "${bundle_type}_lw")
-    JBR_BASE_NAME=jbr_${bundle_type}_lw-${JBSDK_VERSION}
-    grep -v "jdk.compiler\|jdk.hotspot.agent" modules.list > modules_tmp.list
-    ;;
-  "jfx" | "jcef" | "dcevm")
+  JBR_BUNDLE=jbr_${bundle_type}
+
+  case "${bundle_type}" in
+  "jfx" | "jcef" | "dcevm" | "nomod" | "fd")
     JBR_BASE_NAME=jbr_${bundle_type}-${JBSDK_VERSION}
-    cat modules.list > modules_tmp.list
     ;;
   "jfx_jcef")
     JBR_BASE_NAME=jbr-${JBSDK_VERSION}
-    cat modules.list > modules_tmp.list
     ;;
   *)
-    echo "***ERR*** bundle was not specified" && exit 1
+    echo "***ERR*** bundle was not specified" && do_exit 1
     ;;
   esac
+  cat modules.list > modules_tmp.list
   rm -rf ${BASE_DIR}/${JBR_BUNDLE}
 
-  JBR=$JBR_BASE_NAME-linux-x64-b$build_number
+  JBR=${JBR_BASE_NAME}-linux-x64-b${build_number}
 
   echo Running jlink....
   $JSDK/bin/jlink \
     --module-path $JSDK/jmods --no-man-pages --compress=2 \
-    --add-modules $(xargs < modules_tmp.list | sed s/" "//g) --output $BASE_DIR/$JBR_BUNDLE
+    --add-modules $(xargs < modules_tmp.list | sed s/" "//g) --output $BASE_DIR/$JBR_BUNDLE  || do_exit $?
 
-  if [[ "$bundle_type" == *jcef* ]] || [[ "$bundle_type" == *dcevm* ]]; then
+  if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]; then
     cp -R $BASE_DIR/$JBR_BUNDLE $BASE_DIR/jbr
-    rsync -av jcef_linux_x64/ $BASE_DIR/$JBR_BUNDLE/lib --exclude="modular-sdk" || exit $?
+    rsync -av ${JCEF_PATH}/ $BASE_DIR/$JBR_BUNDLE/lib --exclude="modular-sdk" || do_exit $?
   fi
   grep -v "^JAVA_VERSION" $JSDK/release | grep -v "^MODULES" >> $BASE_DIR/$JBR_BUNDLE/release
 
-  echo Creating $JBR.tar.gz ...
+  echo Creating ${JBR}.tar.gz ...
   rm -rf ${BASE_DIR}/jbr
   cp -R ${BASE_DIR}/${JBR_BUNDLE} ${BASE_DIR}/jbr
-  tar -pcf $JBR.tar -C $BASE_DIR jbr || exit $?
-  gzip $JBR.tar || exit $?
+  tar -pcf ${JBR}.tar -C ${BASE_DIR} jbr || do_exit $?
+  gzip -f ${JBR}.tar || do_exit $?
   rm -rf ${BASE_DIR}/${JBR_BUNDLE}
 }
 
-JBRSDK_BASE_NAME=jbrsdk-$JBSDK_VERSION
-
-git checkout -- modules.list src/java.desktop/share/classes/module-info.java
+JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
+WITH_DEBUG_LEVEL="--with-debug-level=release"
+RELEASE_NAME=linux-x86_64-normal-server-release
+JBSDK=${JBRSDK_BASE_NAME}-linux-x64-b${build_number}
 case "$bundle_type" in
   "jfx")
-    git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch
+    git apply -p0 < jb/project/tools/patches/add_jfx_module.patch || do_exit $?
+    do_reset_changes=1
     ;;
   "jcef")
-    git apply -p0 < jb/project/tools/patches/exclude_jfx_module.patch
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "jfx_jcef")
+    git apply -p0 < jb/project/tools/patches/add_jfx_module.patch || do_exit $?
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
     ;;
   "dcevm")
-    git am jb/project/tools/patches/dcevm/*.patch
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=1
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "nomod")
+    WITH_IMPORT_MODULES=""
+    ;;
+  "fd")
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
+    RELEASE_NAME=linux-x86_64-normal-server-fastdebug
+    JBSDK=${JBRSDK_BASE_NAME}-linux-x64-fastdebug-b${build_number}
+    ;;
+  *)
+    echo "***ERR*** bundle was not specified" && do_exit 1
     ;;
 esac
 
 sh configure \
   --disable-warnings-as-errors \
-  --with-debug-level=release \
+  $WITH_DEBUG_LEVEL \
   --with-vendor-name="${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-import-modules=./modular-sdk \
-  --enable-cds=yes || exit $?
+  $WITH_IMPORT_MODULES \
+  --enable-cds=yes || do_exit $?
 
-make images CONF=linux-x86_64-normal-server-release || exit $?
+make clean images CONF=$RELEASE_NAME || do_exit $?
 
-JSDK=build/linux-x86_64-normal-server-release/images/jdk
-JBSDK=$JBRSDK_BASE_NAME-linux-x64-b$build_number
+JSDK=build/${RELEASE_NAME}/images/jdk
 
 echo Fixing permissions
 chmod -R a+r $JSDK
 
-BASE_DIR=build/linux-x86_64-normal-server-release/images
+BASE_DIR=build/${RELEASE_NAME}/images
 JBRSDK_BUNDLE=jbrsdk
 
-rm -rf $BASE_DIR/$JBRSDK_BUNDLE
-cp -r $JSDK $BASE_DIR/$JBRSDK_BUNDLE || exit $?
+rm -rf ${BASE_DIR}/${JBRSDK_BUNDLE}
+cp -r $JSDK $BASE_DIR/$JBRSDK_BUNDLE || do_exit $?
 
-if [[ "$bundle_type" == *jcef* ]] || [[ "$bundle_type" == *dcevm* ]]; then
-  rsync -av jcef_linux_x64/ $BASE_DIR/$JBRSDK_BUNDLE/lib --exclude="modular-sdk" || exit $?
+if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]; then
+  rsync -av ${JCEF_PATH}/ $BASE_DIR/$JBRSDK_BUNDLE/lib --exclude="modular-sdk" || do_exit $?
 fi
-if [ "$bundle_type" == "jfx_jcef" ]; then
+if [ "${bundle_type}" == "jcef" ] || [ "${bundle_type}" == "fd" ]; then
   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 $?
+  tar -pcf ${JBSDK}.tar --exclude=*.debuginfo --exclude=demo --exclude=sample --exclude=man \
+    -C ${BASE_DIR} ${JBRSDK_BUNDLE} || do_exit $?
+  gzip -f ${JBSDK}.tar || do_exit $?
 fi
 
-JBR_BUNDLE=jbr_${bundle_type}
-create_jbr ${bundle_type}
+create_jbr || do_exit $?
 
-if [ "$bundle_type" == "jfx_jcef" ]; then
-  make test-image || exit $?
+if [ "$bundle_type" == "jcef" ]; then
+  make test-image CONF=$RELEASE_NAME || do_exit $?
 
   JBRSDK_TEST=$JBRSDK_BASE_NAME-linux-test-x64-b$build_number
 
   echo Creating $JBSDK_TEST.tar.gz ...
-  tar -pcf $JBRSDK_TEST.tar -C $BASE_DIR --exclude='test/jdk/demos' test || exit $?
-  gzip $JBRSDK_TEST.tar || exit $?
-fi
+  tar -pcf ${JBRSDK_TEST}.tar -C ${BASE_DIR} --exclude='test/jdk/demos' test || do_exit $?
+  gzip -f ${JBRSDK_TEST}.tar || do_exit $?
+fi
+
+do_exit 0

jb/project/tools/linux/scripts/mkimages_x64_fd.sh

@@ -1,82 +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
-#   bundle_type      - specifies bundle to bu built; possible values:
-#                        jcef - the bundles 1) jbr with jcef+javafx, 2) jbrsdk and 3) test will be created
-#                        jfx  - the bundle 1) jbr with javafx only will be created
-#
-# 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 $JBSDK_VERSION | sed 's/_/\./g')
-
-source jb/project/tools/common.sh
-
-
-JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
-
-sh configure \
-  --disable-warnings-as-errors \
-  --with-debug-level=fastdebug \
-  --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-import-modules=./modular-sdk \
-  --enable-cds=yes || exit $?
-make clean CONF=linux-x86_64-normal-server-fastdebug || exit $?
-make images CONF=linux-x86_64-normal-server-fastdebug || exit $?
-
-JBSDK=${JBRSDK_BASE_NAME}-linux-x64-fastdebug-b${build_number}
-BASE_DIR=build/linux-x86_64-normal-server-fastdebug/images
-JSDK=${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 $?
-cp -R jcef_linux_x64/* $BASE_DIR/$JBRSDK_BUNDLE/lib || 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=$JBR_BASE_NAME-linux-x64-fastdebug-b$build_number
-echo Running jlink....
-${JSDK}/bin/jlink \
-  --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
-  --add-modules $(xargs < modules.list | sed s/" "//g | sed s/,$//g) \
-  --output ${BASE_DIR}/${JBR_BUNDLE} || exit $?
-cp -R jcef_linux_x64/* $BASE_DIR/$JBR_BUNDLE/lib || 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 -czf $JBR.tar -C $BASE_DIR ${JBR_BUNDLE} || exit $?
-gzip $JBR.tar || exit $?

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

@@ -1,10 +0,0 @@
-#!/bin/bash -x
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-script_dir=jb/project/tools/mac/scripts
-${script_dir}/mkimages.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jcef" || exit $?
-${script_dir}/mkimages.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jfx" || exit $?
-${script_dir}/mkimages.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jfx_jcef" || exit $?
-${script_dir}/mkimages.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "dcevm" || exit $?

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

@@ -1,12 +1,16 @@
 #!/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
+#   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 bu built; possible values:
-#                        jcef - the bundles 1) jbr with jcef+javafx, 2) jbrsdk and 3) test will be created
-#                        jfx  - the bundle 1) jbr with javafx only will be created
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        jcef - the release bundles with jcef
+#                        jfx - the release bundles with javafx
+#                        jcef_jfx - the release bundles with jcef and javafx
+#                        dcevm - the release bundles with dcevm patches
+#                        nomod - the release bundles without any additional modules (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
@@ -16,34 +20,38 @@
 # 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:
+#   MODULAR_SDK_PATH - specifies the path to the directory where imported modules are located.
+#               By default imported modules should be located in ./modular-sdk
+#   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 $JBSDK_VERSION | sed 's/_/\./g')
+WITH_IMPORT_MODULES="--with-import-modules=${MODULAR_SDK_PATH:=./modular-sdk}"
+JCEF_PATH=${JCEF_PATH:=./jcef_mac}
 
 source jb/project/tools/common.sh
 
 function create_jbr {
 
-  case "$1" in
-  "${bundle_type}_lw")
-    JBR_BASE_NAME=jbr_${bundle_type}_lw-${JBSDK_VERSION}
-    grep -v "jdk.compiler\|jdk.hotspot.agent" modules.list > modules_tmp.list
-    ;;
-  "jfx" | "jcef" | "dcevm")
+  JBR_BUNDLE=jbr_${bundle_type}
+
+  case "${bundle_type}" in
+  "jfx" | "jcef" | "dcevm" | "nomod" | "fd")
     JBR_BASE_NAME=jbr_${bundle_type}-${JBSDK_VERSION}
-    cat modules.list > modules_tmp.list
     ;;
   "jfx_jcef")
     JBR_BASE_NAME=jbr-${JBSDK_VERSION}
-    cat modules.list > modules_tmp.list
     ;;
   *)
-    echo "***ERR*** bundle was not specified" && exit 1
+    echo "***ERR*** bundle was not specified" && do_exit 1
     ;;
   esac
+  cat modules.list > modules_tmp.list
   rm -rf ${BASE_DIR}/${JBR_BUNDLE}
 
   JRE_CONTENTS=${BASE_DIR}/${JBR_BUNDLE}/Contents
@@ -55,86 +63,115 @@ function create_jbr {
 
   JBR=${JBR_BASE_NAME}-osx-x64-b${build_number}
 
+  echo Running jlink....
   ${BASE_DIR}/$JBRSDK_BUNDLE/Contents/Home/bin/jlink \
       --module-path ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/Home/jmods --no-man-pages --compress=2 \
-      --add-modules $(xargs < modules_tmp.list | sed s/" "//g) --output ${JRE_HOME}  || exit $?
+      --add-modules $(xargs < modules_tmp.list | sed s/" "//g) --output ${JRE_HOME}  || do_exit $?
   grep -v "^JAVA_VERSION" ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/Home/release | grep -v "^MODULES" >> ${JRE_HOME}/release
   cp -R ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/MacOS ${JRE_CONTENTS}
   cp ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/Info.plist ${JRE_CONTENTS}
 
-  if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]]; then
-    rm -rf ${JRE_CONTENTS}/Frameworks || exit $?
-    cp -a jcef_mac/Frameworks ${JRE_CONTENTS} || exit $?
+  if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]; then
+    rm -rf ${JRE_CONTENTS}/Frameworks || do_exit $?
+    cp -a ${JCEF_PATH}/Frameworks ${JRE_CONTENTS} || do_exit $?
   fi
 
   echo Creating ${JBR}.tar.gz ...
   rm -rf ${BASE_DIR}/jbr
   cp -R ${BASE_DIR}/${JBR_BUNDLE} ${BASE_DIR}/jbr
-  COPYFILE_DISABLE=1 tar -pczf ${JBR}.tar.gz --exclude='*.dSYM' --exclude='man' -C ${BASE_DIR} jbr || exit $?
+  COPYFILE_DISABLE=1 tar -pczf ${JBR}.tar.gz --exclude='*.dSYM' --exclude='man' -C ${BASE_DIR} jbr || do_exit $?
   rm -rf ${BASE_DIR}/${JBR_BUNDLE}
 }
 
 JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
-
-git checkout -- modules.list src/java.desktop/share/classes/module-info.java
+WITH_DEBUG_LEVEL="--with-debug-level=release"
+RELEASE_NAME=macosx-x86_64-normal-server-release
+JBSDK=${JBRSDK_BASE_NAME}-osx-x64-b${build_number}
 case "$bundle_type" in
   "jfx")
-    git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch
+    git apply -p0 < jb/project/tools/patches/add_jfx_module.patch || do_exit $?
+    do_reset_changes=1
     ;;
   "jcef")
-    git apply -p0 < jb/project/tools/patches/exclude_jfx_module.patch
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "jfx_jcef")
+    git apply -p0 < jb/project/tools/patches/add_jfx_module.patch || do_exit $?
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
     ;;
   "dcevm")
-    git am jb/project/tools/patches/dcevm/*.patch
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=1
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "nomod")
+    WITH_IMPORT_MODULES=""
+    ;;
+  "fd")
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
+    RELEASE_NAME=macosx-x86_64-normal-server-fastdebug
+    JBSDK=${JBRSDK_BASE_NAME}-osx-x64-fastdebug-b${build_number}
+    ;;
+  *)
+    echo "***ERR*** bundle was not specified" && do_exit 1
     ;;
 esac
 
 sh configure \
   --disable-warnings-as-errors \
-  --with-debug-level=release \
+  $WITH_DEBUG_LEVEL \
   --with-vendor-name="${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-import-modules=./modular-sdk \
+  $WITH_IMPORT_MODULES \
   --with-boot-jdk=`/usr/libexec/java_home -v 11` \
-  --enable-cds=yes || exit $?
+  --enable-cds=yes || do_exit $?
 
-make clean images CONF=macosx-x86_64-normal-server-release || exit $?
+make clean CONF=$RELEASE_NAME || do_exit $?
+make images CONF=$RELEASE_NAME || do_exit $?
 
-JSDK=build/macosx-x86_64-normal-server-release/images/jdk-bundle
-JBSDK=${JBRSDK_BASE_NAME}-osx-x64-b${build_number}
+JSDK=build/${RELEASE_NAME}/images/jdk-bundle
 
 BASE_DIR=jre
 JBRSDK_BUNDLE=jbrsdk
 
 rm -rf $BASE_DIR
-mkdir $BASE_DIR || exit $?
-cp -a $JSDK/jdk-$JBSDK_VERSION_WITH_DOTS.jdk $BASE_DIR/$JBRSDK_BUNDLE || exit $?
+mkdir $BASE_DIR || do_exit $?
+cp -a $JSDK/jdk-$JBSDK_VERSION_WITH_DOTS.jdk $BASE_DIR/$JBRSDK_BUNDLE || do_exit $?
 
-if [[ "$bundle_type" == *jcef* ]] || [[ "$bundle_type" == *dcevm* ]]; then
-  cp -a jcef_mac/Frameworks $BASE_DIR/$JBRSDK_BUNDLE/Contents/
+  if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]; then
+  cp -a ${JCEF_PATH}/Frameworks $BASE_DIR/$JBRSDK_BUNDLE/Contents/
 fi
-if [ "$bundle_type" == "jfx_jcef" ]; then
+if [ "${bundle_type}" == "jcef" ] || [ "{$bundle_type}" == "fd" ]; then
   echo Creating $JBSDK.tar.gz ...
   sed 's/JBR/JBRSDK/g' ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/Home/release > release
   mv release ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/Home/release
-  COPYFILE_DISABLE=1 tar -pczf $JBSDK.tar.gz -C $BASE_DIR \
+  [ -f "${JBSDK}.tar.gz" ] && rm "${JBSDK}.tar.gz"
+  COPYFILE_DISABLE=1 tar -pczf ${JBSDK}.tar.gz -C ${BASE_DIR} \
     --exclude='._*' --exclude='.DS_Store' --exclude='*~' \
     --exclude='Home/demo' --exclude='Home/man' --exclude='Home/sample' \
-    $JBRSDK_BUNDLE || exit $?
+    ${JBRSDK_BUNDLE} || do_exit $?
 fi
 
-JBR_BUNDLE=jbr_${bundle_type}
-create_jbr "${bundle_type}" || exit $?
+create_jbr || do_exit $?
 
-if [ "$bundle_type" == "jfx_jcef" ]; then
-  make test-image || exit $?
+if [ "$bundle_type" == "jcef" ]; then
+  make test-image CONF=$RELEASE_NAME || do_exit $?
 
   JBRSDK_TEST=$JBRSDK_BASE_NAME-osx-test-x64-b$build_number
 
   echo Creating $JBRSDK_TEST.tar.gz ...
-  COPYFILE_DISABLE=1 tar -pczf $JBRSDK_TEST.tar.gz -C build/macosx-x86_64-normal-server-release/images \
-    --exclude='test/jdk/demos' test || exit $?
-fi
+  [ -f "${JBRSDK_TEST}.tar.gz" ] && rm "${JBRSDK_TEST}.tar.gz"
+  COPYFILE_DISABLE=1 tar -pczf ${JBRSDK_TEST}.tar.gz -C build/${RELEASE_NAME}/images \
+    --exclude='test/jdk/demos' test || do_exit $?
+fi
+
+do_exit 0

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

@@ -1,90 +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
-#   bundle_type      - specifies bundle to bu built; possible values:
-#                        jcef - the bundles 1) jbr with jcef+javafx, 2) jbrsdk and 3) test will be created
-#                        jfx  - the bundle 1) jbr with javafx only will be created
-#
-# 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 $JBSDK_VERSION | sed 's/_/\./g')
-
-source jb/project/tools/common.sh
-
-JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
-
-sh configure \
-  --disable-warnings-as-errors \
-  --with-debug-level=fastdebug \
-  --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-import-modules=./modular-sdk \
-  --with-boot-jdk=`/usr/libexec/java_home -v 11` \
-  --enable-cds=yes || exit $?
-make clean CONF=macosx-x86_64-normal-server-fastdebug || exit $?
-make images CONF=macosx-x86_64-normal-server-fastdebug || exit $?
-
-JSDK=build/macosx-x86_64-normal-server-fastdebug/images/jdk-bundle
-JBSDK=${JBRSDK_BASE_NAME}-osx-x64-fastdebug-b${build_number}
-
-BASE_DIR=jre
-JBRSDK_BUNDLE=jbrsdk
-
-rm -rf $BASE_DIR
-mkdir $BASE_DIR || exit $?
-JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
-cp -a $JSDK/jdk-$JBSDK_VERSION_WITH_DOTS.jdk $BASE_DIR/$JBRSDK_BUNDLE || exit $?
-
-echo Creating $JBSDK.tar.gz ...
-cp -a jcef_mac/Frameworks $BASE_DIR/$JBRSDK_BUNDLE/Contents/
-
-sed 's/JBR/JBRSDK/g' ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/Home/release > release
-mv release ${BASE_DIR}/${JBRSDK_BUNDLE}/Contents/Home/release
-
-COPYFILE_DISABLE=1 \
-  tar -pczf ${JBSDK}.tar.gz -C ${BASE_DIR} \
-    --exclude='._*' --exclude='.DS_Store' --exclude='*~' \
-    --exclude='Home/demo' --exclude='Home/man' --exclude='Home/sample' \
-    ${JBRSDK_BUNDLE} || exit $?
-
-JBR_BUNDLE=jbr
-JRE_CONTENTS=$BASE_DIR/$JBR_BUNDLE/Contents
-JRE_HOME=$JRE_CONTENTS/Home
-      JBR_BASE_NAME=jbr-$JBSDK_VERSION
-
-mkdir -p $JRE_CONTENTS
-
-if [ -d "$JRE_HOME" ]; then
-  rm -rf $JRE_HOME
-fi
-
-JBR=${JBR_BASE_NAME}-osx-x64-fastdebug-b${build_number}
-
-$BASE_DIR/$JBRSDK_BUNDLE/Contents/Home/bin/jlink \
-    --module-path $BASE_DIR/$JBRSDK_BUNDLE/Contents/Home/jmods --no-man-pages --compress=2 \
-    --add-modules $(xargs < modules.list | sed s/" "//g) --output $JRE_HOME  || exit $?
-grep -v "^JAVA_VERSION" $BASE_DIR/$JBRSDK_BUNDLE/Contents/Home/release | grep -v "^MODULES" >> $JRE_HOME/release
-cp -R $BASE_DIR/$JBRSDK_BUNDLE/Contents/MacOS $JRE_CONTENTS
-cp $BASE_DIR/$JBRSDK_BUNDLE/Contents/Info.plist $JRE_CONTENTS
-cp -a jcef_mac/Frameworks ${JRE_CONTENTS} || exit $?
-
-
-echo Creating $JBR.tar.gz ...
-COPYFILE_DISABLE=1 tar -pczf $JBR.tar.gz --exclude='*.dSYM' --exclude='man' -C $BASE_DIR $JBR_BUNDLE || exit $?

jb/project/tools/patches/add_jcef_module.patch

@@ -0,0 +1,30 @@
+diff --git modules.list modules.list
+index e23d793..368d022 100644
+--- modules.list
++++ modules.list
+@@ -54,4 +54,7 @@ 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 b663b38..3e9acdc 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/add_jfx_module.patch

@@ -0,0 +1,18 @@
+diff --git modules.list modules.list
+index e23d793ca61..14b9a6c8e50 100644
+--- modules.list
++++ modules.list
+@@ -20,6 +20,13 @@ java.sql.rowset,
+ java.transaction.xa,
+ java.xml,
+ java.xml.crypto,
++javafx.base,
++javafx.controls,
++javafx.fxml,
++javafx.graphics,
++javafx.media,
++javafx.swing,
++javafx.web,
+ jdk.accessibility,
+ jdk.aot,
+ jdk.attach,

jb/project/tools/patches/dcevm/0001-Apply-basic-dcevm11-patch.patch

@@ -1,7 +1,7 @@
-From 7efd979183409db33e965cf80adf60c9a970c762 Mon Sep 17 00:00:00 2001
+From b36887fca0b0b251c914567d0ee2871c6d786c09 Mon Sep 17 00:00:00 2001
 From: skybber <lada.dvorak7@gmail.com>
 Date: Wed, 14 Nov 2018 21:09:39 +0100
-Subject: [PATCH 01/48] Apply basic dcevm11 patch
+Subject: [PATCH 01/17] Apply basic dcevm11 patch
 
 ---
  src/hotspot/share/ci/ciObjectFactory.cpp      |   25 +
@@ -14,8 +14,9 @@ Subject: [PATCH 01/48] Apply basic dcevm11 patch
  .../share/classfile/classLoaderExt.cpp        |    1 +
  src/hotspot/share/classfile/dictionary.cpp    |   46 +-
  src/hotspot/share/classfile/dictionary.hpp    |   10 +
- src/hotspot/share/classfile/javaClasses.cpp   |   51 +
- src/hotspot/share/classfile/javaClasses.hpp   |   52 +-
+ src/hotspot/share/classfile/javaClasses.cpp   |   63 +
+ src/hotspot/share/classfile/javaClasses.hpp   |   54 +-
+ .../share/classfile/javaClasses.inline.hpp    |    8 +
  src/hotspot/share/classfile/klassFactory.cpp  |    3 +
  src/hotspot/share/classfile/klassFactory.hpp  |    1 +
  .../share/classfile/loaderConstraints.cpp     |   15 +-
@@ -66,7 +67,7 @@ Subject: [PATCH 01/48] Apply basic dcevm11 patch
  src/hotspot/share/runtime/mutexLocker.cpp     |    5 +-
  src/hotspot/share/runtime/mutexLocker.hpp     |    2 +
  src/hotspot/share/runtime/reflection.cpp      |    6 +
- 62 files changed, 3530 insertions(+), 74 deletions(-)
+ 63 files changed, 3552 insertions(+), 74 deletions(-)
  create mode 100644 src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
  create mode 100644 src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 
@@ -125,7 +126,7 @@ index 1063c9853e1..3e9d48c4cdc 100644
  
  #endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP
 diff --git a/src/hotspot/share/classfile/classFileParser.cpp b/src/hotspot/share/classfile/classFileParser.cpp
-index 0d4862dd449..ea150df9104 100644
+index 6d65cca2101..e2b8c5793d0 100644
 --- a/src/hotspot/share/classfile/classFileParser.cpp
 +++ b/src/hotspot/share/classfile/classFileParser.cpp
 @@ -954,6 +954,8 @@ void ClassFileParser::parse_interfaces(const ClassFileStream* const stream,
@@ -137,7 +138,7 @@ index 0d4862dd449..ea150df9104 100644
        if (!interf->is_interface()) {
          THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(),
                    err_msg("class %s can not implement %s, because it is not an interface (%s)",
-@@ -3747,7 +3749,7 @@ const InstanceKlass* ClassFileParser::parse_super_class(ConstantPool* const cp,
+@@ -3826,7 +3828,7 @@ const InstanceKlass* ClassFileParser::parse_super_class(ConstantPool* const cp,
      // However, make sure it is not an array type.
      bool is_array = false;
      if (cp->tag_at(super_class_index).is_klass()) {
@@ -146,7 +147,7 @@ index 0d4862dd449..ea150df9104 100644
        if (need_verify)
          is_array = super_klass->is_array_klass();
      } else if (need_verify) {
-@@ -4415,7 +4417,10 @@ void ClassFileParser::set_precomputed_flags(InstanceKlass* ik) {
+@@ -4494,7 +4496,10 @@ void ClassFileParser::set_precomputed_flags(InstanceKlass* ik) {
    if (!_has_empty_finalizer) {
      if (_has_finalizer ||
          (super != NULL && super->has_finalizer())) {
@@ -158,7 +159,7 @@ index 0d4862dd449..ea150df9104 100644
      }
    }
  
-@@ -5792,6 +5797,7 @@ ClassFileParser::ClassFileParser(ClassFileStream* stream,
+@@ -5872,6 +5877,7 @@ ClassFileParser::ClassFileParser(ClassFileStream* stream,
                                   const InstanceKlass* host_klass,
                                   GrowableArray<Handle>* cp_patches,
                                   Publicity pub_level,
@@ -166,7 +167,7 @@ index 0d4862dd449..ea150df9104 100644
                                   TRAPS) :
    _stream(stream),
    _requested_name(name),
-@@ -5850,7 +5856,8 @@ ClassFileParser::ClassFileParser(ClassFileStream* stream,
+@@ -5930,7 +5936,8 @@ ClassFileParser::ClassFileParser(ClassFileStream* stream,
    _has_finalizer(false),
    _has_empty_finalizer(false),
    _has_vanilla_constructor(false),
@@ -176,7 +177,7 @@ index 0d4862dd449..ea150df9104 100644
  
    _class_name = name != NULL ? name : vmSymbols::unknown_class_name();
  
-@@ -6251,14 +6258,15 @@ void ClassFileParser::post_process_parsed_stream(const ClassFileStream* const st
+@@ -6331,14 +6338,15 @@ void ClassFileParser::post_process_parsed_stream(const ClassFileStream* const st
          CHECK);
      }
      Handle loader(THREAD, _loader_data->class_loader());
@@ -195,7 +196,7 @@ index 0d4862dd449..ea150df9104 100644
    if (_super_klass != NULL) {
      if (_super_klass->has_nonstatic_concrete_methods()) {
 diff --git a/src/hotspot/share/classfile/classFileParser.hpp b/src/hotspot/share/classfile/classFileParser.hpp
-index 9f7204be9b6..3db14b678f3 100644
+index 3bdfd34e39f..d792ab4bb3f 100644
 --- a/src/hotspot/share/classfile/classFileParser.hpp
 +++ b/src/hotspot/share/classfile/classFileParser.hpp
 @@ -115,6 +115,9 @@ class ClassFileParser {
@@ -208,7 +209,7 @@ index 9f7204be9b6..3db14b678f3 100644
    enum { fixed_buffer_size = 128 };
    u_char _linenumbertable_buffer[fixed_buffer_size];
  
-@@ -496,6 +499,9 @@ class ClassFileParser {
+@@ -500,6 +503,9 @@ class ClassFileParser {
                       FieldLayoutInfo* info,
                       TRAPS);
  
@@ -218,7 +219,7 @@ index 9f7204be9b6..3db14b678f3 100644
   public:
    ClassFileParser(ClassFileStream* stream,
                    Symbol* name,
-@@ -504,6 +510,7 @@ class ClassFileParser {
+@@ -508,6 +514,7 @@ class ClassFileParser {
                    const InstanceKlass* host_klass,
                    GrowableArray<Handle>* cp_patches,
                    Publicity pub_level,
@@ -226,7 +227,7 @@ index 9f7204be9b6..3db14b678f3 100644
                    TRAPS);
  
    ~ClassFileParser();
-@@ -532,6 +539,7 @@ class ClassFileParser {
+@@ -536,6 +543,7 @@ 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; }
@@ -235,7 +236,7 @@ index 9f7204be9b6..3db14b678f3 100644
    ReferenceType reference_type() const { return _rt; }
    AccessFlags access_flags() const { return _access_flags; }
 diff --git a/src/hotspot/share/classfile/classLoader.cpp b/src/hotspot/share/classfile/classLoader.cpp
-index 2c73ef93934..28ed54b93e1 100644
+index f0cf1fb7cb1..5713bb9e98c 100644
 --- a/src/hotspot/share/classfile/classLoader.cpp
 +++ b/src/hotspot/share/classfile/classLoader.cpp
 @@ -1501,6 +1501,7 @@ InstanceKlass* ClassLoader::load_class(Symbol* name, bool search_append_only, TR
@@ -448,10 +449,10 @@ index d26f1f11fb4..fd4b134d7a7 100644
  
  // An entry in the class loader data dictionaries, this describes a class as
 diff --git a/src/hotspot/share/classfile/javaClasses.cpp b/src/hotspot/share/classfile/javaClasses.cpp
-index 438e7aa4ec9..a89443d22ea 100644
+index 6d320fb0d30..1004f41b277 100644
 --- a/src/hotspot/share/classfile/javaClasses.cpp
 +++ b/src/hotspot/share/classfile/javaClasses.cpp
-@@ -2443,6 +2443,8 @@ void java_lang_Throwable::fill_in_stack_trace(Handle throwable, const methodHand
+@@ -2444,6 +2444,8 @@ void java_lang_Throwable::fill_in_stack_trace(Handle throwable, const methodHand
          skip_throwableInit_check = true;
        }
      }
@@ -460,7 +461,7 @@ index 438e7aa4ec9..a89443d22ea 100644
      if (method->is_hidden()) {
        if (skip_hidden)  continue;
      }
-@@ -3625,6 +3627,50 @@ void java_lang_invoke_DirectMethodHandle::serialize_offsets(SerializeClosure* f)
+@@ -3626,6 +3628,62 @@ void java_lang_invoke_DirectMethodHandle::serialize_offsets(SerializeClosure* f)
  }
  #endif
  
@@ -478,14 +479,20 @@ index 438e7aa4ec9..a89443d22ea 100644
 +  dmh->long_field_put(_static_offset_offset, static_offset);
 +}
 +
++#define DIRECTMETHODHANDLE_STATIC_ACCESSOR_FIELDS_DO(macro) \
++  macro(_static_offset_offset, k, vmSymbols::static_offset_name(), long_signature, false)
 +
 +void java_lang_invoke_DirectMethodHandle_StaticAccessor::compute_offsets() {
-+  Klass* klass_oop = SystemDictionary::DirectMethodHandle_StaticAccessor_klass();
-+  if (klass_oop != NULL) {
-+    compute_offset(_static_offset_offset, InstanceKlass::cast(klass_oop), vmSymbols::static_offset_name(), vmSymbols::long_signature());
-+  }
++  InstanceKlass* k = SystemDictionary::DirectMethodHandle_StaticAccessor_klass();
++  DIRECTMETHODHANDLE_STATIC_ACCESSOR_FIELDS_DO(FIELD_COMPUTE_OFFSET);
 +}
 +
++#if INCLUDE_CDS
++void java_lang_invoke_DirectMethodHandle_StaticAccessor::serialize_offsets(SerializeClosure* f) {
++  DIRECTMETHODHANDLE_STATIC_ACCESSOR_FIELDS_DO(FIELD_SERIALIZE_OFFSET);
++}
++#endif
++
 +// Support for java_lang_invoke_DirectMethodHandle$Accessor
 +
 +int java_lang_invoke_DirectMethodHandle_Accessor::_field_offset_offset;
@@ -500,18 +507,24 @@ index 438e7aa4ec9..a89443d22ea 100644
 +  dmh->int_field_put(_field_offset_offset, field_offset);
 +}
 +
++#define DIRECTMETHODHANDLE_ACCESSOR_FIELDS_DO(macro) \
++  macro(_field_offset_offset, k, vmSymbols::field_offset_name(), int_signature, false)
 +
 +void java_lang_invoke_DirectMethodHandle_Accessor::compute_offsets() {
-+  Klass* klass_oop = SystemDictionary::DirectMethodHandle_Accessor_klass();
-+  if (klass_oop != NULL) {
-+    compute_offset(_field_offset_offset, InstanceKlass::cast(klass_oop), vmSymbols::field_offset_name(), vmSymbols::int_signature());
-+  }
++  InstanceKlass* k = SystemDictionary::DirectMethodHandle_Accessor_klass();
++  DIRECTMETHODHANDLE_ACCESSOR_FIELDS_DO(FIELD_COMPUTE_OFFSET);
 +}
++
++#if INCLUDE_CDS
++void java_lang_invoke_DirectMethodHandle_Accessor::serialize_offsets(SerializeClosure* f) {
++  DIRECTMETHODHANDLE_ACCESSOR_FIELDS_DO(FIELD_SERIALIZE_OFFSET);
++}
++#endif
 +
  // Support for java_lang_invoke_MethodHandle
  
  int java_lang_invoke_MethodHandle::_type_offset;
-@@ -3811,6 +3857,11 @@ void java_lang_invoke_ResolvedMethodName::set_vmtarget(oop resolved_method, Meth
+@@ -3812,6 +3870,11 @@ void java_lang_invoke_ResolvedMethodName::set_vmtarget(oop resolved_method, Meth
    resolved_method->address_field_put(_vmtarget_offset, (address)m);
  }
  
@@ -524,10 +537,19 @@ index 438e7aa4ec9..a89443d22ea 100644
    // lookup ResolvedMethod oop in the table, or create a new one and intern it
    oop resolved_method = ResolvedMethodTable::find_method(m());
 diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
-index bd9cdca3fe3..ceb1670df5d 100644
+index bd9cdca3fe3..da004d1b307 100644
 --- a/src/hotspot/share/classfile/javaClasses.hpp
 +++ b/src/hotspot/share/classfile/javaClasses.hpp
-@@ -253,10 +253,10 @@ class java_lang_Class : AllStatic {
+@@ -67,6 +67,8 @@
+   f(java_lang_invoke_LambdaForm) \
+   f(java_lang_invoke_MethodType) \
+   f(java_lang_invoke_CallSite) \
++  f(java_lang_invoke_DirectMethodHandle_StaticAccessor) \
++  f(java_lang_invoke_DirectMethodHandle_Accessor) \
+   f(java_lang_invoke_MethodHandleNatives_CallSiteContext) \
+   f(java_security_AccessControlContext) \
+   f(java_lang_reflect_AccessibleObject) \
+@@ -253,10 +255,10 @@ 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);
@@ -539,7 +561,7 @@ index bd9cdca3fe3..ceb1670df5d 100644
    static void allocate_fixup_lists();
    static void compute_offsets();
  
-@@ -1055,6 +1055,55 @@ class java_lang_invoke_DirectMethodHandle: AllStatic {
+@@ -1055,6 +1057,55 @@ class java_lang_invoke_DirectMethodHandle: AllStatic {
    static int member_offset_in_bytes()           { return _member_offset; }
  };
  
@@ -562,9 +584,9 @@ index bd9cdca3fe3..ceb1670df5d 100644
 +  static bool is_subclass(Klass* klass) {
 +    return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_StaticAccessor_klass());
 +  }
-+  static bool is_instance(oop obj) {
-+    return obj != NULL && is_subclass(obj->klass());
-+  }
++  static bool is_instance(oop obj);
++
++  static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
 +};
 +
 +// Interface to java.lang.invoke.DirectMethodHandle$Accessor objects
@@ -586,16 +608,16 @@ index bd9cdca3fe3..ceb1670df5d 100644
 +  static bool is_subclass(Klass* klass) {
 +    return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_Accessor_klass());
 +  }
-+  static bool is_instance(oop obj) {
-+    return obj != NULL && is_subclass(obj->klass());
-+  }
++  static bool is_instance(oop obj);
++
++  static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
 +};
 +
 +
  // Interface to java.lang.invoke.LambdaForm objects
  // (These are a private interface for managing adapter code generation.)
  
-@@ -1106,6 +1155,7 @@ class java_lang_invoke_ResolvedMethodName : AllStatic {
+@@ -1106,6 +1157,7 @@ class java_lang_invoke_ResolvedMethodName : AllStatic {
  
    static Method* vmtarget(oop resolved_method);
    static void set_vmtarget(oop resolved_method, Method* method);
@@ -603,6 +625,25 @@ index bd9cdca3fe3..ceb1670df5d 100644
  
    // find or create resolved member name
    static oop find_resolved_method(const methodHandle& m, TRAPS);
+diff --git a/src/hotspot/share/classfile/javaClasses.inline.hpp b/src/hotspot/share/classfile/javaClasses.inline.hpp
+index 6c5787f4b70..ba9cffa8c62 100644
+--- a/src/hotspot/share/classfile/javaClasses.inline.hpp
++++ b/src/hotspot/share/classfile/javaClasses.inline.hpp
+@@ -175,6 +175,14 @@ inline bool java_lang_invoke_DirectMethodHandle::is_instance(oop obj) {
+   return obj != NULL && is_subclass(obj->klass());
+ }
+ 
++inline bool java_lang_invoke_DirectMethodHandle_StaticAccessor::is_instance(oop obj) {
++  return obj != NULL && is_subclass(obj->klass());
++}
++
++inline bool java_lang_invoke_DirectMethodHandle_Accessor::is_instance(oop obj) {
++  return obj != NULL && is_subclass(obj->klass());
++}
++
+ inline bool java_lang_Module::is_instance(oop obj) {
+   return obj != NULL && obj->klass() == SystemDictionary::Module_klass();
+ }
 diff --git a/src/hotspot/share/classfile/klassFactory.cpp b/src/hotspot/share/classfile/klassFactory.cpp
 index 3614480f16b..355016c8f61 100644
 --- a/src/hotspot/share/classfile/klassFactory.cpp
@@ -691,7 +732,7 @@ index 8a7a1248e62..611e18aaf85 100644
    bool add_entry(Symbol* name, InstanceKlass* klass1, Handle loader1,
                                      InstanceKlass* klass2, Handle loader2);
 diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
-index 91dc9faeccb..9dbd6cc9c12 100644
+index 5c8ff453823..669de5e56a5 100644
 --- a/src/hotspot/share/classfile/systemDictionary.cpp
 +++ b/src/hotspot/share/classfile/systemDictionary.cpp
 @@ -201,6 +201,7 @@ Klass* SystemDictionary::resolve_or_fail(Symbol* class_name, Handle class_loader
@@ -783,7 +824,7 @@ index 91dc9faeccb..9dbd6cc9c12 100644
    } );
  
    return k;
-@@ -1554,11 +1567,12 @@ static void post_class_define_event(InstanceKlass* k, const ClassLoaderData* def
+@@ -1553,11 +1566,12 @@ static void post_class_define_event(InstanceKlass* k, const ClassLoaderData* def
    }
  }
  
@@ -797,7 +838,7 @@ index 91dc9faeccb..9dbd6cc9c12 100644
  
   // for bootstrap and other parallel classloaders don't acquire lock,
   // use placeholder token
-@@ -1583,7 +1597,11 @@ void SystemDictionary::define_instance_class(InstanceKlass* k, TRAPS) {
+@@ -1582,7 +1596,11 @@ void SystemDictionary::define_instance_class(InstanceKlass* k, TRAPS) {
    Symbol*  name_h = k->name();
    Dictionary* dictionary = loader_data->dictionary();
    unsigned int d_hash = dictionary->compute_hash(name_h);
@@ -810,7 +851,7 @@ index 91dc9faeccb..9dbd6cc9c12 100644
  
    // Register class just loaded with class loader (placed in Vector)
    // Note we do this before updating the dictionary, as this can
-@@ -1617,7 +1635,7 @@ void SystemDictionary::define_instance_class(InstanceKlass* k, TRAPS) {
+@@ -1616,7 +1634,7 @@ void SystemDictionary::define_instance_class(InstanceKlass* k, TRAPS) {
    k->eager_initialize(THREAD);
  
    // notify jvmti
@@ -819,7 +860,7 @@ index 91dc9faeccb..9dbd6cc9c12 100644
        assert(THREAD->is_Java_thread(), "thread->is_Java_thread()");
        JvmtiExport::post_class_load((JavaThread *) THREAD, k);
  
-@@ -1695,7 +1713,7 @@ InstanceKlass* SystemDictionary::find_or_define_instance_class(Symbol* class_nam
+@@ -1694,7 +1712,7 @@ InstanceKlass* SystemDictionary::find_or_define_instance_class(Symbol* class_nam
      }
    }
  
@@ -828,7 +869,7 @@ index 91dc9faeccb..9dbd6cc9c12 100644
  
    Handle linkage_exception = Handle(); // null handle
  
-@@ -1818,6 +1836,18 @@ void SystemDictionary::add_to_hierarchy(InstanceKlass* k, TRAPS) {
+@@ -1817,6 +1835,18 @@ void SystemDictionary::add_to_hierarchy(InstanceKlass* k, TRAPS) {
    CodeCache::flush_dependents_on(k);
  }
  
@@ -847,7 +888,7 @@ index 91dc9faeccb..9dbd6cc9c12 100644
  // ----------------------------------------------------------------------------
  // GC support
  
-@@ -2089,7 +2119,7 @@ void SystemDictionary::check_constraints(unsigned int d_hash,
+@@ -2113,7 +2143,7 @@ void SystemDictionary::check_constraints(unsigned int d_hash,
        // also hold array classes.
  
        assert(check->is_instance_klass(), "noninstance in systemdictionary");
@@ -857,10 +898,10 @@ index 91dc9faeccb..9dbd6cc9c12 100644
          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/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
-index d38dd0fd003..717f34ce9a0 100644
+index 649b321a6a4..06f6c869d63 100644
 --- a/src/hotspot/share/classfile/systemDictionary.hpp
 +++ b/src/hotspot/share/classfile/systemDictionary.hpp
-@@ -158,6 +158,8 @@ class OopStorage;
+@@ -161,6 +161,8 @@ class OopStorage;
                                                                                                                           \
    /* support for dynamic typing; it's OK if these are NULL in earlier JDKs */                                            \
    do_klass(DirectMethodHandle_klass,                    java_lang_invoke_DirectMethodHandle,       Opt                 ) \
@@ -869,7 +910,7 @@ index d38dd0fd003..717f34ce9a0 100644
    do_klass(MethodHandle_klass,                          java_lang_invoke_MethodHandle,             Pre                 ) \
    do_klass(VarHandle_klass,                             java_lang_invoke_VarHandle,                Pre                 ) \
    do_klass(MemberName_klass,                            java_lang_invoke_MemberName,               Pre                 ) \
-@@ -315,6 +317,7 @@ public:
+@@ -318,6 +320,7 @@ public:
                                              Handle class_loader,
                                              Handle protection_domain,
                                              ClassFileStream* st,
@@ -877,9 +918,9 @@ index d38dd0fd003..717f34ce9a0 100644
                                              TRAPS);
  
    // Lookup an already loaded class. If not found NULL is returned.
-@@ -452,6 +455,10 @@ public:
-   }
-   static BasicType box_klass_type(Klass* k);  // inverse of box_klass
+@@ -462,6 +465,10 @@ public:
+   static bool is_well_known_klass(Symbol* class_name);
+ #endif
  
 +  // Enhanced class redefinition
 +  static void remove_from_hierarchy(InstanceKlass* k);
@@ -888,7 +929,7 @@ index d38dd0fd003..717f34ce9a0 100644
  protected:
    // Returns the class loader data to be used when looking up/updating the
    // system dictionary.
-@@ -645,7 +652,7 @@ protected:
+@@ -655,7 +662,7 @@ protected:
    // after waiting, but before reentering SystemDictionary_lock
    // to preserve lock order semantics.
    static void double_lock_wait(Handle lockObject, TRAPS);
@@ -898,7 +939,7 @@ index d38dd0fd003..717f34ce9a0 100644
                                                  Handle class_loader,
                                                  InstanceKlass* k, TRAPS);
 diff --git a/src/hotspot/share/classfile/systemDictionaryShared.cpp b/src/hotspot/share/classfile/systemDictionaryShared.cpp
-index ed75ecd9261..1f1441f3ffb 100644
+index ad638e26579..32de261588a 100644
 --- a/src/hotspot/share/classfile/systemDictionaryShared.cpp
 +++ b/src/hotspot/share/classfile/systemDictionaryShared.cpp
 @@ -520,7 +520,7 @@ InstanceKlass* SystemDictionaryShared::find_or_load_shared_class(
@@ -936,10 +977,10 @@ index 05239c57866..c1357bde0ed 100644
    methodHandle        _method; // current method being verified
    VerificationType    _this_type; // the verification type of the current class
 diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
-index 73645b42857..e2bac31b27f 100644
+index 44cf2583eb9..41e9a84cd69 100644
 --- a/src/hotspot/share/classfile/vmSymbols.hpp
 +++ b/src/hotspot/share/classfile/vmSymbols.hpp
-@@ -284,6 +284,8 @@
+@@ -286,6 +286,8 @@
    template(java_lang_invoke_CallSite,                 "java/lang/invoke/CallSite")                \
    template(java_lang_invoke_ConstantCallSite,         "java/lang/invoke/ConstantCallSite")        \
    template(java_lang_invoke_DirectMethodHandle,       "java/lang/invoke/DirectMethodHandle")      \
@@ -948,7 +989,7 @@ index 73645b42857..e2bac31b27f 100644
    template(java_lang_invoke_MutableCallSite,          "java/lang/invoke/MutableCallSite")         \
    template(java_lang_invoke_VolatileCallSite,         "java/lang/invoke/VolatileCallSite")        \
    template(java_lang_invoke_MethodHandle,             "java/lang/invoke/MethodHandle")            \
-@@ -444,6 +446,12 @@
+@@ -446,6 +448,12 @@
    template(module_entry_name,                         "module_entry")                             \
    template(resolved_references_name,                  "<resolved_references>")                    \
    template(init_lock_name,                            "<init_lock>")                              \
@@ -962,7 +1003,7 @@ index 73645b42857..e2bac31b27f 100644
    /* name symbols needed by intrinsics */                                                         \
    VM_INTRINSICS_DO(VM_INTRINSIC_IGNORE, VM_SYMBOL_IGNORE, template, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE) \
 diff --git a/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp b/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp
-index 7b9096d73be..a93f764f1b9 100644
+index 17d563338b8..4c9918627a2 100644
 --- a/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp
 +++ b/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp
 @@ -376,6 +376,12 @@ CompactibleFreeListSpace::CompactibleFreeListSpace(BlockOffsetSharedArray* bs, M
@@ -978,7 +1019,7 @@ index 7b9096d73be..a93f764f1b9 100644
  // Like CompactibleSpace forward() but always calls cross_threshold() to
  // update the block offset table.  Removed initialize_threshold call because
  // CFLS does not use a block offset array for contiguous spaces.
-@@ -2190,7 +2196,8 @@ CompactibleFreeListSpace::refillLinearAllocBlock(LinearAllocBlock* blk) {
+@@ -2203,7 +2209,8 @@ CompactibleFreeListSpace::refillLinearAllocBlock(LinearAllocBlock* blk) {
  
  // Support for compaction
  void CompactibleFreeListSpace::prepare_for_compaction(CompactPoint* cp) {
@@ -988,7 +1029,7 @@ index 7b9096d73be..a93f764f1b9 100644
    // Prepare_for_compaction() uses the space between live objects
    // so that later phase can skip dead space quickly.  So verification
    // of the free lists doesn't work after.
-@@ -2208,7 +2215,7 @@ void CompactibleFreeListSpace::adjust_pointers() {
+@@ -2221,7 +2228,7 @@ void CompactibleFreeListSpace::adjust_pointers() {
  }
  
  void CompactibleFreeListSpace::compact() {
@@ -1195,10 +1236,10 @@ index cf96ade0ef0..b6187dae4d0 100644
  
    static void follow_klass(Klass* klass);
 diff --git a/src/hotspot/share/gc/shared/gcConfig.cpp b/src/hotspot/share/gc/shared/gcConfig.cpp
-index ddc84c1d2a4..8aac2b39e1e 100644
+index 8c42e43b00d..9779df92447 100644
 --- a/src/hotspot/share/gc/shared/gcConfig.cpp
 +++ b/src/hotspot/share/gc/shared/gcConfig.cpp
-@@ -101,7 +101,10 @@ void GCConfig::fail_if_unsupported_gc_is_selected() {
+@@ -106,7 +106,10 @@ void GCConfig::fail_if_unsupported_gc_is_selected() {
  }
  
  void GCConfig::select_gc_ergonomically() {
@@ -1878,7 +1919,7 @@ index 2a93500b794..2a9eb978b43 100644
  
    // RedefineClasses support
 diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index 9ba36f2de3f..8a262bc3735 100644
+index c6752eb373f..e9c1d4e5226 100644
 --- a/src/hotspot/share/oops/instanceKlass.cpp
 +++ b/src/hotspot/share/oops/instanceKlass.cpp
 @@ -832,7 +832,8 @@ bool InstanceKlass::link_class_impl(bool throw_verifyerror, TRAPS) {
@@ -1972,7 +2013,7 @@ index 9ba36f2de3f..8a262bc3735 100644
  }
  
  #ifndef PRODUCT
-@@ -3532,7 +3582,7 @@ void InstanceKlass::verify_on(outputStream* st) {
+@@ -3552,7 +3602,7 @@ void InstanceKlass::verify_on(outputStream* st) {
      }
  
      guarantee(sib->is_klass(), "should be klass");
@@ -2145,10 +2186,10 @@ index b77a19deb38..5573b10f021 100644
    // Compiler support
    static ByteSize super_offset()                 { return in_ByteSize(offset_of(Klass, _super)); }
 diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
-index 7ca9b4b90ca..bee69f9cec6 100644
+index 916772c0b10..ed6f769bf1b 100644
 --- a/src/hotspot/share/oops/method.cpp
 +++ b/src/hotspot/share/oops/method.cpp
-@@ -1405,6 +1405,8 @@ methodHandle Method::clone_with_new_data(const methodHandle& m, u_char* new_code
+@@ -1402,6 +1402,8 @@ methodHandle Method::clone_with_new_data(const methodHandle& m, u_char* new_code
  
    // Reset correct method/const method, method size, and parameter info
    newm->set_constMethod(newcm);
@@ -2157,7 +2198,7 @@ index 7ca9b4b90ca..bee69f9cec6 100644
    newm->constMethod()->set_code_size(new_code_length);
    newm->constMethod()->set_constMethod_size(new_const_method_size);
    assert(newm->code_size() == new_code_length, "check");
-@@ -2099,6 +2101,10 @@ void Method::ensure_jmethod_ids(ClassLoaderData* loader_data, int capacity) {
+@@ -2096,6 +2098,10 @@ 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) {
@@ -2207,7 +2248,7 @@ index 18c706187df..4533476ff8f 100644
    Symbol* signature() const                      { return constants()->symbol_at(signature_index()); }
    int signature_index() const                    { return constMethod()->signature_index();         }
 diff --git a/src/hotspot/share/prims/jni.cpp b/src/hotspot/share/prims/jni.cpp
-index aed6075b52a..8b0ae584cf4 100644
+index f9a69ef0c8b..231ada3f0ab 100644
 --- a/src/hotspot/share/prims/jni.cpp
 +++ b/src/hotspot/share/prims/jni.cpp
 @@ -353,6 +353,7 @@ JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderR
@@ -2219,10 +2260,10 @@ index aed6075b52a..8b0ae584cf4 100644
  
    if (log_is_enabled(Debug, class, resolve) && k != NULL) {
 diff --git a/src/hotspot/share/prims/jvm.cpp b/src/hotspot/share/prims/jvm.cpp
-index 797b022d5e5..eb4b7622820 100644
+index 24c66ab3918..82b359ee9a3 100644
 --- a/src/hotspot/share/prims/jvm.cpp
 +++ b/src/hotspot/share/prims/jvm.cpp
-@@ -927,6 +927,7 @@ static jclass jvm_define_class_common(JNIEnv *env, const char *name,
+@@ -935,6 +935,7 @@ static jclass jvm_define_class_common(JNIEnv *env, const char *name,
                                                     class_loader,
                                                     protection_domain,
                                                     &st,
@@ -2232,7 +2273,7 @@ index 797b022d5e5..eb4b7622820 100644
    if (log_is_enabled(Debug, class, resolve) && k != NULL) {
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 new file mode 100644
-index 00000000000..83c0952de37
+index 00000000000..80c31135487
 --- /dev/null
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -0,0 +1,2255 @@
@@ -4493,7 +4534,7 @@ index 00000000000..83c0952de37
 +}
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 new file mode 100644
-index 00000000000..b712d69a193
+index 00000000000..3f95cf42645
 --- /dev/null
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 @@ -0,0 +1,202 @@
@@ -4765,10 +4806,10 @@ index 1dd911fd8d8..bc6ebb2d4af 100644
    VMThread::execute(&op);
    return (op.check_error());
 diff --git a/src/hotspot/share/prims/jvmtiExport.cpp b/src/hotspot/share/prims/jvmtiExport.cpp
-index c2e86c2406a..2463c1f7bdb 100644
+index 375aa5f54f8..08f910bd2ac 100644
 --- a/src/hotspot/share/prims/jvmtiExport.cpp
 +++ b/src/hotspot/share/prims/jvmtiExport.cpp
-@@ -2799,7 +2799,7 @@ JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(N
+@@ -2813,7 +2813,7 @@ JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(N
  // iterate over any code blob descriptors collected and post a
  // DYNAMIC_CODE_GENERATED event to the profiler.
  JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() {
@@ -4778,7 +4819,7 @@ index c2e86c2406a..2463c1f7bdb 100644
   if (_code_blobs != NULL) {
     for (int i=0; i<_code_blobs->length(); i++) {
 diff --git a/src/hotspot/share/prims/jvmtiExport.hpp b/src/hotspot/share/prims/jvmtiExport.hpp
-index 99288f7590c..bb58ad9432c 100644
+index 557d10543c6..ef8c266bc6e 100644
 --- a/src/hotspot/share/prims/jvmtiExport.hpp
 +++ b/src/hotspot/share/prims/jvmtiExport.hpp
 @@ -178,6 +178,7 @@ class JvmtiExport : public AllStatic {
@@ -4894,10 +4935,10 @@ index c071e0641d4..a9057893368 100644
  }
  #endif // INCLUDE_JVMTI
 diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index 740c44cded4..ca57b524593 100644
+index 3e7d48ad5a3..a11dfe48dd6 100644
 --- a/src/hotspot/share/runtime/arguments.cpp
 +++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -2035,6 +2035,36 @@ unsigned int addopens_count = 0;
+@@ -2033,6 +2033,36 @@ unsigned int addopens_count = 0;
  unsigned int addmods_count = 0;
  unsigned int patch_mod_count = 0;
  
@@ -4934,7 +4975,7 @@ index 740c44cded4..ca57b524593 100644
  // Check the consistency of vm_init_args
  bool Arguments::check_vm_args_consistency() {
    // Method for adding checks for flag consistency.
-@@ -2051,6 +2081,8 @@ bool Arguments::check_vm_args_consistency() {
+@@ -2049,6 +2079,8 @@ bool Arguments::check_vm_args_consistency() {
      status = false;
    }
  
@@ -4944,10 +4985,10 @@ index 740c44cded4..ca57b524593 100644
  #if INCLUDE_NMT
      if (MemTracker::tracking_level() == NMT_off) {
 diff --git a/src/hotspot/share/runtime/arguments.hpp b/src/hotspot/share/runtime/arguments.hpp
-index 72bfd2bf9e3..46450cce5c9 100644
+index bd439aab073..cc7f71a4404 100644
 --- a/src/hotspot/share/runtime/arguments.hpp
 +++ b/src/hotspot/share/runtime/arguments.hpp
-@@ -505,6 +505,7 @@ class Arguments : AllStatic {
+@@ -506,6 +506,7 @@ class Arguments : AllStatic {
    static bool process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized);
  
    static size_t conservative_max_heap_alignment() { return _conservative_max_heap_alignment; }
@@ -4956,10 +4997,10 @@ index 72bfd2bf9e3..46450cce5c9 100644
    static size_t max_heap_for_compressed_oops();
  
 diff --git a/src/hotspot/share/runtime/globals.hpp b/src/hotspot/share/runtime/globals.hpp
-index 6b5713be433..f3cf08fffb6 100644
+index 3cd51a1ac95..7b061359c1d 100644
 --- a/src/hotspot/share/runtime/globals.hpp
 +++ b/src/hotspot/share/runtime/globals.hpp
-@@ -2671,7 +2671,11 @@ define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
+@@ -2674,7 +2674,11 @@ define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
            "Start flight recording with options"))                           \
                                                                              \
    experimental(bool, UseFastUnorderedTimeStamps, false,                     \
@@ -4973,10 +5014,10 @@ index 6b5713be433..f3cf08fffb6 100644
  #define VM_FLAGS(develop,                                                   \
                   develop_pd,                                                \
 diff --git a/src/hotspot/share/runtime/interfaceSupport.inline.hpp b/src/hotspot/share/runtime/interfaceSupport.inline.hpp
-index f5dac06750a..40a8bdd8e62 100644
+index 0267345b535..bcdd8e5d3e6 100644
 --- a/src/hotspot/share/runtime/interfaceSupport.inline.hpp
 +++ b/src/hotspot/share/runtime/interfaceSupport.inline.hpp
-@@ -277,8 +277,8 @@ class ThreadToNativeFromVM : public ThreadStateTransition {
+@@ -276,8 +276,8 @@ class ThreadToNativeFromVM : public ThreadStateTransition {
   public:
    ThreadToNativeFromVM(JavaThread *thread) : ThreadStateTransition(thread) {
      // We are leaving the VM at this point and going directly to native code.
@@ -5002,7 +5043,7 @@ index 32040586b36..0eb2fc1ec6b 100644
    _result   = result;
  
 diff --git a/src/hotspot/share/runtime/mutexLocker.cpp b/src/hotspot/share/runtime/mutexLocker.cpp
-index b258e347c94..0e60bb4b6bd 100644
+index b56b44eab69..2e1514cf750 100644
 --- a/src/hotspot/share/runtime/mutexLocker.cpp
 +++ b/src/hotspot/share/runtime/mutexLocker.cpp
 @@ -5,7 +5,7 @@
@@ -5023,7 +5064,7 @@ index b258e347c94..0e60bb4b6bd 100644
  Monitor* GCTaskManager_lock           = NULL;
  
  Mutex*   Management_lock              = NULL;
-@@ -275,6 +277,7 @@ void mutex_init() {
+@@ -285,6 +287,7 @@ void mutex_init() {
    def(JNIGlobalActive_lock         , PaddedMutex  , nonleaf-1,   true,  Monitor::_safepoint_check_never);
    def(JNIWeakAlloc_lock            , PaddedMutex  , nonleaf,     true,  Monitor::_safepoint_check_never);
    def(JNIWeakActive_lock           , PaddedMutex  , nonleaf-1,   true,  Monitor::_safepoint_check_never);
@@ -5062,5 +5103,5 @@ index a49b5108821..ed789b0bc2b 100644
    // field's access bits are "access".  We assume that we've already verified
    // that current_class can access member_class.
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0002-We-need-to-set-classRedefinitionCount-on-new-class-n.patch

@@ -1,26 +0,0 @@
-From 095315ce3f66bcf14ae1d06d84bbeb24bb068ae8 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Wed, 14 Nov 2018 21:18:22 +0100
-Subject: [PATCH 02/48] We need to set classRedefinitionCount on new class, not
- old class.
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 83c0952de37..83cf0be090b 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1904,7 +1904,7 @@ void VM_EnhancedRedefineClasses::increment_class_counter(InstanceKlass *ik, TRAP
-   oop class_mirror = ik->java_mirror();
-   Klass* class_oop = java_lang_Class::as_Klass(class_mirror);
-   int new_count = java_lang_Class::classRedefinedCount(class_mirror) + 1;
--  java_lang_Class::set_classRedefinedCount(class_mirror, new_count);
-+  java_lang_Class::set_classRedefinedCount(ik->new_version()->java_mirror(), new_count);
- 
-   if (class_oop != _the_class_oop) {
-     // _the_class_oop count is printed at end of redefine_single_class()
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0003-Fix-crashes-in-MetadataOnStackMark-MetadataOnSta.patch

@@ -1,30 +0,0 @@
-From 9ddbbcdc73e653af7807ead68705c1c9267c9192 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Wed, 14 Nov 2018 21:22:01 +0100
-Subject: [PATCH 03/48] Fix crashes in MetadataOnStackMark::~MetadataOnSta
-
-MetadataOnStackMark shoukld not remove dcevm stuff. It was added
-accidentaly in dcevm9,
-and never was part of doit() in previous versions.
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 83cf0be090b..61af07d0f86 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -470,7 +470,9 @@ void VM_EnhancedRedefineClasses::doit() {
- 
-   // Mark methods seen on stack and everywhere else so old methods are not
-   // cleaned up if they're on the stack.
--  MetadataOnStackMark md_on_stack(true);
-+
-+  // FIXME: fails in enhanced redefinition
-+  // MetadataOnStackMark md_on_stack(true);
-   HandleMark hm(thread);   // make sure any handles created are deleted
-                            // before the stack walk again.
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0003-Support-for-Concurrent-Mark-Sweep-CMS-collector.patch

@@ -1,7 +1,7 @@
-From 333c0c639e12296d05a547b015c948516c8c504e Mon Sep 17 00:00:00 2001
+From dcf2c02f9ce950170b0e448b8ef3aceb19732a86 Mon Sep 17 00:00:00 2001
 From: skybber <lada.dvorak7@gmail.com>
 Date: Wed, 12 Dec 2018 19:38:28 +0100
-Subject: [PATCH 09/48] Support for Concurrent Mark Sweep (CMS) collector
+Subject: [PATCH 03/17] Support for Concurrent Mark Sweep (CMS) collector
 
 ---
  .../share/gc/cms/compactibleFreeListSpace.cpp | 139 ++++++++++++------
@@ -17,7 +17,7 @@ Subject: [PATCH 09/48] Support for Concurrent Mark Sweep (CMS) collector
  10 files changed, 135 insertions(+), 79 deletions(-)
 
 diff --git a/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp b/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp
-index a93f764f1b9..efaa09473a9 100644
+index 4c9918627a2..f335173576f 100644
 --- a/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp
 +++ b/src/hotspot/share/gc/cms/compactibleFreeListSpace.cpp
 @@ -376,55 +376,58 @@ CompactibleFreeListSpace::CompactibleFreeListSpace(BlockOffsetSharedArray* bs, M
@@ -118,7 +118,7 @@ index a93f764f1b9..efaa09473a9 100644
      q->forward_to(oop(compact_top));
      assert(q->is_gc_marked(), "encoding the pointer should preserve the mark");
    } else {
-@@ -2196,13 +2199,60 @@ CompactibleFreeListSpace::refillLinearAllocBlock(LinearAllocBlock* blk) {
+@@ -2209,13 +2212,60 @@ CompactibleFreeListSpace::refillLinearAllocBlock(LinearAllocBlock* blk) {
  
  // Support for compaction
  void CompactibleFreeListSpace::prepare_for_compaction(CompactPoint* cp) {
@@ -181,7 +181,7 @@ index a93f764f1b9..efaa09473a9 100644
  void CompactibleFreeListSpace::adjust_pointers() {
    // In other versions of adjust_pointers(), a bail out
    // based on the amount of live data in the generation
-@@ -2215,7 +2265,12 @@ void CompactibleFreeListSpace::adjust_pointers() {
+@@ -2228,7 +2278,12 @@ void CompactibleFreeListSpace::adjust_pointers() {
  }
  
  void CompactibleFreeListSpace::compact() {
@@ -253,10 +253,10 @@ index d0ff86c8215..b4ed59f020c 100644
      }
      _rescued_oops->clear();
 diff --git a/src/hotspot/share/gc/shared/gcConfig.cpp b/src/hotspot/share/gc/shared/gcConfig.cpp
-index 8aac2b39e1e..39364a64cb2 100644
+index 9779df92447..adb0f5dd25c 100644
 --- a/src/hotspot/share/gc/shared/gcConfig.cpp
 +++ b/src/hotspot/share/gc/shared/gcConfig.cpp
-@@ -101,7 +101,7 @@ void GCConfig::fail_if_unsupported_gc_is_selected() {
+@@ -106,7 +106,7 @@ void GCConfig::fail_if_unsupported_gc_is_selected() {
  }
  
  void GCConfig::select_gc_ergonomically() {
@@ -266,7 +266,7 @@ index 8aac2b39e1e..39364a64cb2 100644
      FLAG_SET_ERGO(bool, UseSerialGC, true);
    } else if (os::is_server_class_machine()) {
 diff --git a/src/hotspot/share/gc/shared/space.cpp b/src/hotspot/share/gc/shared/space.cpp
-index 763abc91a39..947dff8ae0c 100644
+index bc0dd1980db..56b144b46f1 100644
 --- a/src/hotspot/share/gc/shared/space.cpp
 +++ b/src/hotspot/share/gc/shared/space.cpp
 @@ -388,11 +388,11 @@ HeapWord* CompactibleSpace::forward_compact_top(size_t size, CompactPoint* cp, H
@@ -301,7 +301,7 @@ index 763abc91a39..947dff8ae0c 100644
    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 && oop(q)->klass()->new_version()->update_information() != NULL) {
+   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");
@@ -360,7 +360,7 @@ index 8eb5669fb79..901c89d8a30 100644
    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 75d7e685edf..26e56ae6f7e 100644
+index 6b109fcd2e5..8c255d6d428 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
@@ -402,7 +402,7 @@ index 75d7e685edf..26e56ae6f7e 100644
          end_of_live = end;
        } else {
          // otherwise, it really is a free region.
-@@ -351,7 +354,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
+@@ -352,7 +355,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
        HeapWord* compaction_top = (HeapWord*)oop(cur_obj)->forwardee();
  
        if (redefinition_run &&  space->must_rescue(oop(cur_obj), oop(cur_obj)->forwardee())) {
@@ -411,7 +411,7 @@ index 75d7e685edf..26e56ae6f7e 100644
          debug_only(Copy::fill_to_words(cur_obj, size, 0));
          cur_obj += size;
          continue;
-@@ -361,8 +364,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
+@@ -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
@@ -422,10 +422,10 @@ index 75d7e685edf..26e56ae6f7e 100644
          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 c64d6bb1bb5..9b8678a53fb 100644
+index 43d761cdbb2..14af1aad21b 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -52,6 +52,7 @@
+@@ -54,6 +54,7 @@
  #include "prims/jvmtiThreadState.inline.hpp"
  #include "utilities/events.hpp"
  #include "oops/constantPool.inline.hpp"
@@ -433,7 +433,7 @@ index c64d6bb1bb5..9b8678a53fb 100644
  
  Array<Method*>* VM_EnhancedRedefineClasses::_old_methods = NULL;
  Array<Method*>* VM_EnhancedRedefineClasses::_new_methods = NULL;
-@@ -420,13 +421,11 @@ public:
+@@ -416,13 +417,11 @@ public:
        Klass* new_klass = obj->klass()->new_version();
  
        if (new_klass->update_information() != NULL) {
@@ -449,7 +449,7 @@ index c64d6bb1bb5..9b8678a53fb 100644
            oop src = obj;
            if (new_klass->is_copying_backwards()) {
              copy_to_tmp(obj);
-@@ -436,11 +435,6 @@ public:
+@@ -432,11 +431,6 @@ public:
            //  FIXME: instance updates...
            //guarantee(false, "instance updates!");
            MarkSweep::update_fields(obj, src, new_klass->update_information());
@@ -462,10 +462,10 @@ index c64d6bb1bb5..9b8678a53fb 100644
        } else {
          obj->set_klass(obj->klass()->new_version());
 diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index ca57b524593..2ca6dde069d 100644
+index a11dfe48dd6..013ba213c00 100644
 --- a/src/hotspot/share/runtime/arguments.cpp
 +++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -2047,14 +2047,14 @@ bool Arguments::check_gc_consistency() {
+@@ -2045,14 +2045,14 @@ bool Arguments::check_gc_consistency() {
    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.
@@ -484,5 +484,5 @@ index ca57b524593..2ca6dde069d 100644
                  "Conflicting collector combinations in option list; "
                  "please refer to the release notes for the combinations "
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0004-Fix-class-cast-exception-on-redefinition-of-class-A-.patch

@@ -1,7 +1,7 @@
-From 5f416d7a25bd23399b9189cc94ab5d5887e6b4d4 Mon Sep 17 00:00:00 2001
+From 663ccc831cc21ffddc5bc035de2c72666df00a4e Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <vladimir.dvorak@mailprofiler.com>
 Date: Wed, 11 Mar 2020 14:19:34 +0100
-Subject: [PATCH 26/48] Fix class cast exception on redefinition of class A,
+Subject: [PATCH 04/17] Fix class cast exception on redefinition of class A,
  that is superclass of B that has anonymous class C
 
 ---
@@ -9,7 +9,7 @@ Subject: [PATCH 26/48] Fix class cast exception on redefinition of class A,
  1 file changed, 4 insertions(+), 1 deletion(-)
 
 diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index 9b6ba7e9304..8cbd4b8edf2 100644
+index 312d9af2527..4312c2c4ca9 100644
 --- a/src/hotspot/share/oops/instanceKlass.cpp
 +++ b/src/hotspot/share/oops/instanceKlass.cpp
 @@ -788,7 +788,10 @@ bool InstanceKlass::link_class_impl(bool throw_verifyerror, TRAPS) {
@@ -17,13 +17,13 @@ index 9b6ba7e9304..8cbd4b8edf2 100644
      if (!is_linked()) {
        if (!is_rewritten()) {
 -        {
-+        // In cases, 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 
++        // (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 (!newest_version()->is_redefining()) {
++        if (!AllowEnhancedClassRedefinition || !newest_version()->is_redefining()) {
            bool verify_ok = verify_code(throw_verifyerror, THREAD);
            if (!verify_ok) {
              return false;
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0004-Fix-problem-with-nested-members.patch

@@ -1,25 +0,0 @@
-From bb3eb4931818c3ef43c48d0781d73b8e2eb6dea9 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Mon, 3 Dec 2018 19:34:53 +0100
-Subject: [PATCH 04/48] Fix problem with nested members
-
-Reported at : https://stackoverflow.com/questions/53370380/hotswapagent-incompatibleclasschangeerror-type-headerpanel1-is-not-a-nest-mem
----
- src/hotspot/share/oops/instanceKlass.cpp | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index 8a262bc3735..9b6ba7e9304 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -178,6 +178,7 @@ bool InstanceKlass::has_nest_member(InstanceKlass* k, TRAPS) const {
-       }
- 
-       Klass* k2 = _constants->klass_at(cp_index, CHECK_false);
-+      k2 = k2->newest_version();
-       if (k2 == k) {
-         log_trace(class, nestmates)("- class is listed as a nest member");
-         return true;
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0005-HotswapAgent-integration.patch

@@ -1,7 +1,7 @@
-From d457702275bc47f3f9ea416dc794be403bc6eb94 Mon Sep 17 00:00:00 2001
+From 25cb9b5fa97749d3bc13dc6c848c7eb9cc1b66bb Mon Sep 17 00:00:00 2001
 From: skybber <lada.dvorak7@gmail.com>
 Date: Wed, 14 Nov 2018 21:20:08 +0100
-Subject: [PATCH 15/48] HotswapAgent integration
+Subject: [PATCH 05/17] HotswapAgent integration
 
 It include:
 
@@ -9,16 +9,25 @@ It include:
 to CFLAGS (bash configure --with-extra-cflags="-DDCEVM_ONLY"), by
 default compilation goes with HotswapAgent
 
+Allow ha class initializer calls
+
 Add --add-opens for necessary modules/packages
 - java.base/java.lang - for reflection access to Proxy.proxyCache
 - java.base/jdk.internal.loader - for access proxyCache class
 - java.desktop/java.beans - for reflection access to Introspector
+- java.desktop/com.sun.beans
+- java.base/java.io
+- com.sun.beans.util
+
+Open jdk module to access ClassInfo.CACHE
 
 - be quiet if HotswapAgent is not found in lib/, it is compatible with
 old DCEVM
-- disable hotswapagent for -Xshare:dump
+- disable HotswapAgent for -Xshare:dump
 - disable HotswapAgent in jvm tools
+- disable HotswapAgent in keytool
 ---
+ make/launcher/Launcher-java.base.gmk          |  1 +
  make/launcher/Launcher-java.rmi.gmk           |  2 +
  make/launcher/Launcher-java.scripting.gmk     |  3 +-
  make/launcher/Launcher-java.security.jgss.gmk |  3 +
@@ -37,11 +46,32 @@ old DCEVM
  make/launcher/Launcher-jdk.pack.gmk           |  1 +
  make/launcher/Launcher-jdk.rmic.gmk           |  1 +
  .../Launcher-jdk.scripting.nashorn.shell.gmk  |  3 +-
- src/hotspot/share/runtime/arguments.cpp       | 59 +++++++++++++++++++
+ src/hotspot/share/classfile/vmSymbols.hpp     |  1 +
+ .../share/interpreter/linkResolver.cpp        |  2 +-
+ src/hotspot/share/runtime/arguments.cpp       | 67 +++++++++++++++++++
  src/hotspot/share/runtime/arguments.hpp       |  3 +
  src/hotspot/share/runtime/globals.hpp         | 12 +++-
- 21 files changed, 117 insertions(+), 10 deletions(-)
+ .../sun/beans/introspect/package-info.java    | 26 +++++++
+ .../classes/com/sun/beans/package-info.java   | 26 +++++++
+ .../com/sun/beans/util/package-info.java      | 26 +++++++
+ .../share/classes/module-info.java            |  3 +
+ 28 files changed, 209 insertions(+), 11 deletions(-)
+ create mode 100644 src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java
+ create mode 100644 src/java.desktop/share/classes/com/sun/beans/package-info.java
+ create mode 100644 src/java.desktop/share/classes/com/sun/beans/util/package-info.java
 
+diff --git a/make/launcher/Launcher-java.base.gmk b/make/launcher/Launcher-java.base.gmk
+index f6d4aa28fe6..38ba29530d8 100644
+--- a/make/launcher/Launcher-java.base.gmk
++++ b/make/launcher/Launcher-java.base.gmk
+@@ -52,6 +52,7 @@ endif
+ 
+ $(eval $(call SetupBuildLauncher, keytool, \
+     MAIN_CLASS := sun.security.tools.keytool.Main, \
++    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+ 
+ ################################################################################
 diff --git a/make/launcher/Launcher-java.rmi.gmk b/make/launcher/Launcher-java.rmi.gmk
 index a69a90bcc81..07046232275 100644
 --- a/make/launcher/Launcher-java.rmi.gmk
@@ -229,16 +259,16 @@ index 7117fa78059..761a52d8466 100644
  
  # Hook to include the corresponding custom file, if present.
 diff --git a/make/launcher/Launcher-jdk.jconsole.gmk b/make/launcher/Launcher-jdk.jconsole.gmk
-index 6205ae63d16..5ca6a0c123b 100644
+index 575b9e0595b..9b38683a489 100644
 --- a/make/launcher/Launcher-jdk.jconsole.gmk
 +++ b/make/launcher/Launcher-jdk.jconsole.gmk
-@@ -28,7 +28,8 @@ include LauncherCommon.gmk
- $(eval $(call SetupBuildLauncher, jconsole, \
+@@ -29,7 +29,8 @@ $(eval $(call SetupBuildLauncher, jconsole, \
      MAIN_CLASS := sun.tools.jconsole.JConsole, \
      JAVA_ARGS := --add-opens java.base/java.io=jdk.jconsole \
--		 -Djconsole.showOutputViewer, \
-+      -Djconsole.showOutputViewer \
-+      -XX:+DisableHotswapAgent, \
+ 		 -Djconsole.showOutputViewer \
+-		 -Djdk.attach.allowAttachSelf=true, \
++		 -Djdk.attach.allowAttachSelf=true \
++		 -XX:+DisableHotswapAgent, \
      CFLAGS_windows := -DJAVAW, \
      LIBS_windows := user32.lib, \
  ))
@@ -361,11 +391,36 @@ index 82311e69fd6..bd39f8595b2 100644
 +        -XX:+DisableHotswapAgent, \
      CFLAGS := -DENABLE_ARG_FILES, \
  ))
+diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
+index 41e9a84cd69..1f67eb202b5 100644
+--- a/src/hotspot/share/classfile/vmSymbols.hpp
++++ b/src/hotspot/share/classfile/vmSymbols.hpp
+@@ -342,6 +342,7 @@
+   /* common method and field names */                                                             \
+   template(object_initializer_name,                   "<init>")                                   \
+   template(class_initializer_name,                    "<clinit>")                                 \
++  template(ha_class_initializer_name,                 "$$ha$clinit")                              \
+   template(println_name,                              "println")                                  \
+   template(printStackTrace_name,                      "printStackTrace")                          \
+   template(main_name,                                 "main")                                     \
+diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
+index 0c24146ff00..9dc184d02f5 100644
+--- a/src/hotspot/share/interpreter/linkResolver.cpp
++++ b/src/hotspot/share/interpreter/linkResolver.cpp
+@@ -1009,7 +1009,7 @@ void LinkResolver::resolve_field(fieldDescriptor& fd,
+         assert(!m.is_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()->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/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index 2ca6dde069d..c75bb5d8f49 100644
+index 013ba213c00..2b5ba619f43 100644
 --- a/src/hotspot/share/runtime/arguments.cpp
 +++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -3937,6 +3937,8 @@ jint Arguments::parse(const JavaVMInitArgs* initial_cmd_args) {
+@@ -3962,6 +3962,8 @@ jint Arguments::parse(const JavaVMInitArgs* initial_cmd_args) {
    // Set object alignment values.
    set_object_alignment();
  
@@ -374,7 +429,7 @@ index 2ca6dde069d..c75bb5d8f49 100644
  #if !INCLUDE_CDS
    if (DumpSharedSpaces || RequireSharedSpaces) {
      jio_fprintf(defaultStream::error_stream(),
-@@ -4270,3 +4272,60 @@ bool Arguments::copy_expand_pid(const char* src, size_t srclen,
+@@ -4295,3 +4297,68 @@ bool Arguments::copy_expand_pid(const char* src, size_t srclen,
    *b = '\0';
    return (p == src_end); // return false if not all of the source was copied
  }
@@ -431,15 +486,23 @@ index 2ca6dde069d..c75bb5d8f49 100644
 +  create_numbered_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++);
++  // 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++);
 +  // java.beans.Introspector access
 +  create_numbered_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++);
++  // com.sun.beans.introspect.ClassInfo access
++  create_numbered_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++);
 +
 +}
 diff --git a/src/hotspot/share/runtime/arguments.hpp b/src/hotspot/share/runtime/arguments.hpp
-index 46450cce5c9..3dc5b3d4bae 100644
+index cc7f71a4404..b2bab2e1f44 100644
 --- a/src/hotspot/share/runtime/arguments.hpp
 +++ b/src/hotspot/share/runtime/arguments.hpp
-@@ -506,6 +506,9 @@ class Arguments : AllStatic {
+@@ -507,6 +507,9 @@ class Arguments : AllStatic {
  
    static size_t conservative_max_heap_alignment() { return _conservative_max_heap_alignment; }
  
@@ -450,7 +513,7 @@ index 46450cce5c9..3dc5b3d4bae 100644
    static size_t max_heap_for_compressed_oops();
  
 diff --git a/src/hotspot/share/runtime/globals.hpp b/src/hotspot/share/runtime/globals.hpp
-index f3cf08fffb6..5f6c7b8e388 100644
+index 7b061359c1d..fc0405b5df2 100644
 --- a/src/hotspot/share/runtime/globals.hpp
 +++ b/src/hotspot/share/runtime/globals.hpp
 @@ -32,6 +32,12 @@
@@ -466,7 +529,7 @@ index f3cf08fffb6..5f6c7b8e388 100644
  // The larger HeapWordSize for 64bit requires larger heaps
  // for the same application running in 64bit.  See bug 4967770.
  // The minimum alignment to a heap word size is done.  Other
-@@ -2675,8 +2681,10 @@ define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
+@@ -2678,8 +2684,10 @@ define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
                                                                              \
    product(bool, AllowEnhancedClassRedefinition, true,                       \
               "Allow enhanced class redefinition beyond swapping method "    \
@@ -479,6 +542,116 @@ index f3cf08fffb6..5f6c7b8e388 100644
  #define VM_FLAGS(develop,                                                   \
                   develop_pd,                                                \
                   product,                                                   \
+diff --git a/src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java b/src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java
+new file mode 100644
+index 00000000000..6636e4dd62a
+--- /dev/null
++++ b/src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java
+@@ -0,0 +1,26 @@
++/*
++ * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
++ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
++ *
++ * This code is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 only, as
++ * published by the Free Software Foundation.  Oracle designates this
++ * particular file as subject to the "Classpath" exception as provided
++ * by Oracle in the LICENSE file that accompanied this code.
++ *
++ * This code is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++ * version 2 for more details (a copy is included in the LICENSE file that
++ * accompanied this code).
++ *
++ * You should have received a copy of the GNU General Public License version
++ * 2 along with this work; if not, write to the Free Software Foundation,
++ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
++ *
++ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
++ * or visit www.oracle.com if you need additional information or have any
++ * questions.
++ */
++
++package com.sun.beans.introspect;
+diff --git a/src/java.desktop/share/classes/com/sun/beans/package-info.java b/src/java.desktop/share/classes/com/sun/beans/package-info.java
+new file mode 100644
+index 00000000000..5c097eeaa53
+--- /dev/null
++++ b/src/java.desktop/share/classes/com/sun/beans/package-info.java
+@@ -0,0 +1,26 @@
++/*
++ * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
++ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
++ *
++ * This code is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 only, as
++ * published by the Free Software Foundation.  Oracle designates this
++ * particular file as subject to the "Classpath" exception as provided
++ * by Oracle in the LICENSE file that accompanied this code.
++ *
++ * This code is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++ * version 2 for more details (a copy is included in the LICENSE file that
++ * accompanied this code).
++ *
++ * You should have received a copy of the GNU General Public License version
++ * 2 along with this work; if not, write to the Free Software Foundation,
++ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
++ *
++ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
++ * or visit www.oracle.com if you need additional information or have any
++ * questions.
++ */
++
++package com.sun.beans;
+diff --git a/src/java.desktop/share/classes/com/sun/beans/util/package-info.java b/src/java.desktop/share/classes/com/sun/beans/util/package-info.java
+new file mode 100644
+index 00000000000..2d5d735ffa8
+--- /dev/null
++++ b/src/java.desktop/share/classes/com/sun/beans/util/package-info.java
+@@ -0,0 +1,26 @@
++/*
++ * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
++ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
++ *
++ * This code is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 only, as
++ * published by the Free Software Foundation.  Oracle designates this
++ * particular file as subject to the "Classpath" exception as provided
++ * by Oracle in the LICENSE file that accompanied this code.
++ *
++ * This code is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++ * version 2 for more details (a copy is included in the LICENSE file that
++ * accompanied this code).
++ *
++ * You should have received a copy of the GNU General Public License version
++ * 2 along with this work; if not, write to the Free Software Foundation,
++ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
++ *
++ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
++ * or visit www.oracle.com if you need additional information or have any
++ * questions.
++ */
++
++package com.sun.beans.util;
+diff --git a/src/java.desktop/share/classes/module-info.java b/src/java.desktop/share/classes/module-info.java
+index b663b382f52..2a8f0a67d52 100644
+--- a/src/java.desktop/share/classes/module-info.java
++++ b/src/java.desktop/share/classes/module-info.java
+@@ -104,6 +104,9 @@ module java.desktop {
+     exports javax.swing.text.rtf;
+     exports javax.swing.tree;
+     exports javax.swing.undo;
++    exports com.sun.beans;
++    exports com.sun.beans.introspect;
++    exports com.sun.beans.util;
+ 
+     // qualified exports may be inserted at build time
+     // see make/GensrcModuleInfo.gmk
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0005-Use-init_mark_raw.patch

@@ -1,26 +0,0 @@
-From 90746a0267b2de4063667f5423093115f814bf08 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Mon, 10 Dec 2018 20:12:07 +0100
-Subject: [PATCH 05/48] Use init_mark_raw()
-
-method changed since j8 - it used init_mark()
----
- src/hotspot/share/gc/shared/space.inline.hpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/gc/shared/space.inline.hpp b/src/hotspot/share/gc/shared/space.inline.hpp
-index 4394eff00c5..75d7e685edf 100644
---- a/src/hotspot/share/gc/shared/space.inline.hpp
-+++ b/src/hotspot/share/gc/shared/space.inline.hpp
-@@ -371,7 +371,7 @@ inline void CompactibleSpace::scan_and_compact(SpaceType* space, bool redefiniti
-         } else {
-           MarkSweep::update_fields(oop(cur_obj), oop(compaction_top));
-         }
--        oop(compaction_top)->init_mark();
-+        oop(compaction_top)->init_mark_raw();
-         assert(oop(compaction_top)->klass() != NULL, "should have a class");
- 
-         debug_only(prev_obj = cur_obj);
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0006-Fix-methodHandles.patch

@@ -1,25 +0,0 @@
-From 026346bfb72eaaae53e8998900d9f520da5ef74d Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Thu, 13 Dec 2018 20:51:09 +0100
-Subject: [PATCH 06/48] Fix methodHandles
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 61af07d0f86..1c7595787a1 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -248,7 +248,7 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-     int ref_kind =       (flags >> REFERENCE_KIND_SHIFT) & REFERENCE_KIND_MASK;
-     if (MethodHandles::ref_kind_is_method(ref_kind)) {
-       Method* m = (Method*) java_lang_invoke_MemberName::vmtarget(obj);
--      if (m != NULL && m->method_holder()->new_version() != NULL) {
-+      if (m != NULL && m->method_holder()->is_redefining()) {
-         // Let's try to re-resolve method
-         InstanceKlass* newest = InstanceKlass::cast(m->method_holder()->newest_version());
-         Method* new_method = newest->find_method(m->name(), m->signature());
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0006-Support-for-Lambda-class-redefinition.patch

@@ -1,7 +1,7 @@
-From f3c1667fc04abdd9aa556b2c00a23239eba14287 Mon Sep 17 00:00:00 2001
+From 28d352b4b7cda96a37f95d75cf576570271157e3 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Fri, 22 May 2020 21:23:01 +0200
-Subject: [PATCH 43/48] Support for Lambda class redefinition
+Date: Sun, 4 Oct 2020 21:12:12 +0200
+Subject: [PATCH 06/17] Support for Lambda class redefinition
 
 ---
  .../share/classfile/classLoaderData.cpp       |  9 +++
@@ -47,7 +47,7 @@ index 7e357929971..00a84610b43 100644
  
    void unload();
 diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
-index e70865109dd..cc9f1fa7831 100644
+index e464b94b420..791b49c68ad 100644
 --- a/src/hotspot/share/classfile/systemDictionary.cpp
 +++ b/src/hotspot/share/classfile/systemDictionary.cpp
 @@ -971,12 +971,16 @@ InstanceKlass* SystemDictionary::parse_stream(Symbol* class_name,
@@ -81,7 +81,7 @@ index e70865109dd..cc9f1fa7831 100644
  
    if (host_klass != NULL && k != NULL) {
      // Anonymous classes must update ClassLoaderData holder (was host_klass loader)
-@@ -1845,7 +1853,7 @@ void SystemDictionary::remove_from_hierarchy(InstanceKlass* k) {
+@@ -1844,7 +1852,7 @@ void SystemDictionary::remove_from_hierarchy(InstanceKlass* k) {
    k->remove_from_sibling_list();
  }
  
@@ -91,10 +91,10 @@ index e70865109dd..cc9f1fa7831 100644
    constraints()->update_after_redefinition();
  }
 diff --git a/src/hotspot/share/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
-index 717f34ce9a0..dc111846c12 100644
+index 06f6c869d63..1dbbffa197f 100644
 --- a/src/hotspot/share/classfile/systemDictionary.hpp
 +++ b/src/hotspot/share/classfile/systemDictionary.hpp
-@@ -301,6 +301,7 @@ public:
+@@ -304,6 +304,7 @@ public:
                          protection_domain,
                          st,
                          NULL, // host klass
@@ -102,7 +102,7 @@ index 717f34ce9a0..dc111846c12 100644
                          NULL, // cp_patches
                          THREAD);
    }
-@@ -309,6 +310,7 @@ public:
+@@ -312,6 +313,7 @@ public:
                                       Handle protection_domain,
                                       ClassFileStream* st,
                                       const InstanceKlass* host_klass,
@@ -111,10 +111,10 @@ index 717f34ce9a0..dc111846c12 100644
                                       TRAPS);
  
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 0ca675e8ee6..08fe42d5c28 100644
+index 14af1aad21b..0b239b2ff6d 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -503,6 +503,8 @@ void VM_EnhancedRedefineClasses::doit() {
+@@ -488,6 +488,8 @@ void VM_EnhancedRedefineClasses::doit() {
      ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
  
  
@@ -123,7 +123,7 @@ index 0ca675e8ee6..08fe42d5c28 100644
    // JSR-292 support
    if (_any_class_has_resolved_methods) {
      bool trace_name_printed = false;
-@@ -774,12 +776,34 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
+@@ -750,12 +752,34 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
      // load hook event.
      state->set_class_being_redefined(the_class, _class_load_kind);
  
@@ -164,7 +164,7 @@ index 0ca675e8ee6..08fe42d5c28 100644
      // Clear class_being_redefined just to be sure.
      state->clear_class_being_redefined();
  
-@@ -1469,6 +1493,30 @@ void VM_EnhancedRedefineClasses::MethodDataCleaner::do_klass(Klass* k) {
+@@ -1436,6 +1460,30 @@ void VM_EnhancedRedefineClasses::MethodDataCleaner::do_klass(Klass* k) {
    }
  }
  
@@ -195,7 +195,7 @@ index 0ca675e8ee6..08fe42d5c28 100644
  void VM_EnhancedRedefineClasses::update_jmethod_ids() {
    for (int j = 0; j < _matching_methods_length; ++j) {
      Method* old_method = _matching_old_methods[j];
-@@ -2018,7 +2066,10 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
+@@ -1973,7 +2021,10 @@ 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
@@ -208,10 +208,10 @@ index 0ca675e8ee6..08fe42d5c28 100644
  
    // 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 ed44f0e27ce..7e2afd49650 100644
+index a48e07e3a6a..3551b06ecde 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -119,6 +119,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+@@ -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);
@@ -254,5 +254,5 @@ index 2f14e01ce0d..d0e0367d8eb 100644
                                                  CHECK_NULL);
    if (anonk == NULL) {
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0007-Fix-field-method.patch

@@ -1,58 +0,0 @@
-From b99ebb71bce6119cd800d69848f84281f2fd2b16 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Sat, 15 Dec 2018 18:23:30 +0100
-Subject: [PATCH 07/48] Fix field method
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 19 ++++++++++++-------
- 1 file changed, 12 insertions(+), 7 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 1c7595787a1..a3b65b273e5 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -264,21 +264,26 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-         }
-       }
-     } else if (MethodHandles::ref_kind_is_field(ref_kind)) {
--      Klass* k = (Klass*) java_lang_invoke_MemberName::vmtarget(obj);
-+      oop clazz = java_lang_invoke_MemberName::clazz(obj);
-+      if (clazz == NULL) {
-+        return false;
-+      }
-+      Klass* k = java_lang_Class::as_Klass(clazz);
-       if (k == NULL) {
-         return false; // Was cleared before, this MemberName is invalid.
-       }
- 
--      if (k != NULL && k->new_version() != NULL) {
-+      if (k->is_redefining()) {
-         // Let's try to re-resolve field
-+        InstanceKlass* old = InstanceKlass::cast(k->old_version());
-         fieldDescriptor fd;
-         int offset = java_lang_invoke_MemberName::vmindex(obj);
-         bool is_static = MethodHandles::ref_kind_is_static(ref_kind);
--        InstanceKlass* ik = InstanceKlass::cast(k);
--        if (ik->find_local_field_from_offset(offset, is_static, &fd)) {
--          InstanceKlass* newest = InstanceKlass::cast(k->newest_version());
-+        InstanceKlass* ik_old = InstanceKlass::cast(old);
-+        if (ik_old->find_local_field_from_offset(offset, is_static, &fd)) {
-+          InstanceKlass* ik_new = InstanceKlass::cast(k->newest_version());
-           fieldDescriptor fd_new;
--          if (newest->find_local_field(fd.name(), fd.signature(), &fd_new)) {
-+          if (ik_new->find_local_field(fd.name(), fd.signature(), &fd_new)) {
-             Handle objHandle(Thread::current(), obj);  // TODO : review thread
-             MethodHandles::init_field_MemberName(objHandle, fd_new, MethodHandles::ref_kind_is_setter(ref_kind));
-           } else {
-@@ -288,7 +293,7 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-             // Eventually, we probably want to replace them with something more meaningful,
-             // like instance throwing NoSuchFieldError or DMH that will resort to dynamic
-             // field resolution (with possibility of type conversion)
--            java_lang_invoke_MemberName::set_method(obj, NULL);
-+            java_lang_invoke_MemberName::set_clazz(obj, NULL);
-             java_lang_invoke_MemberName::set_vmindex(obj, 0);
-             return false;
-           }
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0007-Fix-no-original-bytecode-found-error-if-method-with-.patch

@@ -1,11 +1,11 @@
-From 77bdf6253c457ed88436fb4da6a53c7c0c361a1c Mon Sep 17 00:00:00 2001
+From 3b6c7d2f807857712df6fd51a36a5a906b705f57 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Sat, 23 May 2020 10:02:15 +0200
-Subject: [PATCH 45/48] Fix "no original bytecode found" error if method with
+Subject: [PATCH 07/17] Fix "no original bytecode found" error if method with
  bkp is missing
 
 Sometimes IDE can deploy class with erroneous method, such method has
-no bytecode, but breakpoint position can still exist.
+n bytecode, but breakpoint position can still exist.
 ---
  src/hotspot/share/interpreter/bytecodes.cpp    |  2 +-
  .../share/interpreter/interpreterRuntime.cpp   |  2 +-
@@ -41,10 +41,10 @@ index f367e658879..71bbd15a4f5 100644
  
  IRT_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 bee69f9cec6..f1e22db70d6 100644
+index ed6f769bf1b..031f255e632 100644
 --- a/src/hotspot/share/oops/method.cpp
 +++ b/src/hotspot/share/oops/method.cpp
-@@ -1747,14 +1747,14 @@ bool CompressedLineNumberReadStream::read_pair() {
+@@ -1744,14 +1744,14 @@ bool CompressedLineNumberReadStream::read_pair() {
  
  #if INCLUDE_JVMTI
  
@@ -61,7 +61,7 @@ index bee69f9cec6..f1e22db70d6 100644
      ResourceMark rm;
      fatal("no original bytecode found in %s at bci %d", name_and_sig_as_C_string(), bci);
    }
-@@ -1900,7 +1900,7 @@ BreakpointInfo::BreakpointInfo(Method* m, int bci) {
+@@ -1897,7 +1897,7 @@ BreakpointInfo::BreakpointInfo(Method* m, int bci) {
    _signature_index = m->signature_index();
    _orig_bytecode = (Bytecodes::Code) *m->bcp_from(_bci);
    if (_orig_bytecode == Bytecodes::_breakpoint)
@@ -70,7 +70,7 @@ index bee69f9cec6..f1e22db70d6 100644
    _next = NULL;
  }
  
-@@ -1909,7 +1909,7 @@ void BreakpointInfo::set(Method* method) {
+@@ -1906,7 +1906,7 @@ void BreakpointInfo::set(Method* method) {
    {
      Bytecodes::Code code = (Bytecodes::Code) *method->bcp_from(_bci);
      if (code == Bytecodes::_breakpoint)
@@ -102,10 +102,10 @@ index 4533476ff8f..193e1845b23 100644
    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 a785a43d352..2321483dcbd 100644
+index 0b239b2ff6d..aba99bb60fa 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1389,14 +1389,16 @@ void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
+@@ -1356,14 +1356,16 @@ void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
  
      if (code == Bytecodes::_breakpoint) {
        int bci = method->bci_from(bcp);
@@ -131,5 +131,5 @@ index a785a43d352..2321483dcbd 100644
      } else {
        java_code = Bytecodes::java_code(code);
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0008-Fix-nonstatic-field-handles.patch

@@ -1,43 +0,0 @@
-From dd57a1b40a83f7691c0fb9aa960f77c4428c0eec Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Sat, 15 Dec 2018 20:16:37 +0100
-Subject: [PATCH 08/48] Fix nonstatic field handles
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index a3b65b273e5..c64d6bb1bb5 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -337,6 +337,7 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-     if (obj == NULL) {
-       return;
-     }
-+    bool oop_updated  = false;
-     if (obj->is_instance() && InstanceKlass::cast(obj->klass())->is_mirror_instance_klass()) {
-       Klass* klass = java_lang_Class::as_Klass(obj);
-       if (klass != NULL && klass->is_instance_klass()) {
-@@ -344,13 +345,17 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-         if (klass->new_version() != NULL) {
-           obj = InstanceKlass::cast(klass->new_version())->java_mirror();
-           S::oop_store(p, obj);
-+          oop_updated = true;
-         }
-       }
-     }
- 
-+
-     // JSR 292 support, uptade java.lang.invoke.MemberName instances
-     if (java_lang_invoke_MemberName::is_instance(obj)) {
--      update_member_name(obj);
-+      if (oop_updated) {
-+        update_member_name(obj);
-+      }
-     } else if (java_lang_invoke_DirectMethodHandle::is_instance(obj)) {
-       if (!update_direct_method_handle(obj)) {
-         // DMH is no longer valid, replace it with null reference.
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0008-Replace-deleted-method-with-Universe-throw_no_such_m.patch

@@ -1,7 +1,7 @@
-From a5586aff03fde654102e2c2e1fc19fdea406b31e Mon Sep 17 00:00:00 2001
+From 102b7a0ba69c1411ec926985c79a36a2fc1978dd Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Sun, 24 May 2020 12:07:42 +0200
-Subject: [PATCH 48/48] Replace deleted method with
+Subject: [PATCH 08/17] Replace deleted method with
  Universe::throw_no_such_method_error
 
 ---
@@ -53,5 +53,5 @@ index 7741328979f..06581643c3b 100644
  
          java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, newer_method);
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0010-Change-log-level-in-advanced-redefinition.patch

@@ -0,0 +1,50 @@
+From 2c6512bb54400e3836a3c348c10c78557c1abbf5 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Sat, 13 Jun 2020 18:50:59 +0200
+Subject: [PATCH 10/17] 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 8b6fad2128e..a8adfa5af47 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -915,7 +915,7 @@ 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 06581643c3b..10806bee29b 100644
+--- a/src/hotspot/share/prims/resolvedMethodTable.cpp
++++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
+@@ -270,7 +270,7 @@ 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");
+@@ -290,7 +290,7 @@ 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-Code-cleanup.patch

@@ -1,257 +0,0 @@
-From b9ceda6f7c230750a87e8a686d833ce853d84712 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Sat, 29 Dec 2018 13:22:29 +0100
-Subject: [PATCH 10/48] Code cleanup
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 125 ++++++------------
- .../prims/jvmtiEnhancedRedefineClasses.hpp    |   3 -
- 2 files changed, 40 insertions(+), 88 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 9b8678a53fb..0aa1ac4ff80 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -35,7 +35,7 @@
- #include "memory/metaspaceShared.hpp"
- #include "memory/resourceArea.hpp"
- #include "memory/iterator.inline.hpp"
--#include "gc/serial/markSweep.hpp" // FIXME: other GC?
-+#include "gc/serial/markSweep.hpp"
- #include "oops/fieldStreams.hpp"
- #include "oops/klassVtable.hpp"
- #include "oops/oop.inline.hpp"
-@@ -485,7 +485,9 @@ void VM_EnhancedRedefineClasses::doit() {
-   }
- 
-   // Deoptimize all compiled code that depends on this class (do only once, because it clears whole cache)
--  flush_dependent_code(NULL, thread);
-+  //if (_max_redefinition_flags > Klass::ModifyClass) {
-+    flush_dependent_code(NULL, thread);
-+  //}
- 
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-@@ -593,17 +595,28 @@ void VM_EnhancedRedefineClasses::doit() {
-   // See jvmtiExport.hpp for detailed explanation.
-   JvmtiExport::set_has_redefined_a_class();
- 
--  // check_class() is optionally called for product bits, but is
--  // always called for non-product bits.
- #ifdef PRODUCT
-   if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
- #endif
--    log_trace(redefine, class, obsolete, metadata)("calling check_class");
--    CheckClass check_class(thread);
--    ClassLoaderDataGraph::classes_do(&check_class);
-+  for (int i=0; i<_affected_klasses->length(); i++) {
-+    Klass* the_class = _affected_klasses->at(i);
-+    assert(the_class->new_version() != NULL, "Must have been redefined");
-+    Klass* new_version = the_class->new_version();
-+    assert(new_version->new_version() == NULL, "Must be newest version");
-+
-+    if (!(new_version->super() == NULL || new_version->super()->new_version() == NULL)) {
-+      new_version->print();
-+      new_version->super()->print();
-+    }
-+    assert(new_version->super() == NULL || new_version->super()->new_version() == NULL, "Super class must be newest version");
-+  }
-+  log_trace(redefine, class, obsolete, metadata)("calling check_class");
-+  CheckClass check_class(thread);
-+  ClassLoaderDataGraph::classes_do(&check_class);
- #ifdef PRODUCT
-   }
- #endif
-+
- }
- 
- /**
-@@ -1279,24 +1292,23 @@ void VM_EnhancedRedefineClasses::calculate_instance_update_information(Klass* ne
-   GrowableArray<int> result = cl.finish();
-   ik->store_update_information(result);
-   ik->set_copying_backwards(cl.does_copy_backwards());
--/* TODO logging
--  if (RC_TRACE_ENABLED(0x00000001)) {
--    RC_TRACE(0x00000001, ("Instance update information for %s:", new_version->name()->as_C_string()));
-+  if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
-+    log_trace(redefine, class, obsolete, metadata)("Instance update information for %s:", new_version->name()->as_C_string());
-     if (cl.does_copy_backwards()) {
--      RC_TRACE(0x00000001, ("\tDoes copy backwards!"));
-+      log_trace(redefine, class, obsolete, metadata)("\tDoes copy backwards!");
-     }
-     for (int i=0; i<result.length(); i++) {
-       int curNum = result.at(i);
-       if (curNum < 0) {
--        RC_TRACE(0x00000001, ("\t%d CLEAN", curNum));
-+        log_trace(redefine, class, obsolete, metadata)("\t%d CLEAN", curNum);
-       } else if (curNum > 0) {
--        RC_TRACE(0x00000001, ("\t%d COPY from %d", curNum, result.at(i + 1)));
-+        log_trace(redefine, class, obsolete, metadata)("\t%d COPY from %d", curNum, result.at(i + 1));
-         i++;
-       } else {
--        RC_TRACE(0x00000001, ("\tEND"));
-+        log_trace(redefine, class, obsolete, metadata)("\tEND");
-       }
-     }
--  }*/
-+  }
- }
- 
- /**
-@@ -1813,6 +1825,7 @@ void VM_EnhancedRedefineClasses::compute_added_deleted_matching_methods() {
- /**
-   FIXME - swap_annotations is never called, check that annotations work
- */
-+// TODO : delete it
- void VM_EnhancedRedefineClasses::swap_annotations(InstanceKlass* the_class,
-                                           InstanceKlass* new_class) {
-   // FIXME - probably original implementation only 
-@@ -1822,7 +1835,6 @@ void VM_EnhancedRedefineClasses::swap_annotations(InstanceKlass* the_class,
-   new_class->set_annotations(old_annotations);
- }
- 
--
- // Install the redefinition of a class:
- //    - house keeping (flushing breakpoints and caches, deoptimizing
- //      dependent compiled code)
-@@ -1853,7 +1865,9 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_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
--  //  flush_dependent_code(the_class, THREAD);
-+  //if (_max_redefinition_flags <= Klass::ModifyClass) {
-+    //flush_dependent_code(the_class, THREAD);
-+  //}
- 
-   _old_methods = the_class->methods();
-   _new_methods = new_class->methods();
-@@ -1928,64 +1942,15 @@ void VM_EnhancedRedefineClasses::increment_class_counter(InstanceKlass *ik, TRAP
-   }
- }
- 
--// FIXME - class check is currently disabled
- void VM_EnhancedRedefineClasses::CheckClass::do_klass(Klass* k) {
--  return;
--  bool no_old_methods = true;  // be optimistic
--
--  // Both array and instance classes have vtables.
--  // a vtable should never contain old or obsolete methods
--  ResourceMark rm(_thread);
--  if (k->vtable_length() > 0 &&
--      !k->vtable().check_no_old_or_obsolete_entries()) {
--    if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
--      log_trace(redefine, class, obsolete, metadata)
--        ("klassVtable::check_no_old_or_obsolete_entries failure -- OLD or OBSOLETE method found -- class: %s",
--         k->signature_name());
--      k->vtable().dump_vtable();
--    }
--    no_old_methods = false;
--  }
--
--  if (k->is_instance_klass()) {
--    HandleMark hm(_thread);
--    InstanceKlass *ik = InstanceKlass::cast(k);
-+  HandleMark hm(_thread);
-+  InstanceKlass *ik = (InstanceKlass *) k;
-+  assert(ik->new_version() == NULL, "must be latest version in system dictionary");
- 
--    // an itable should never contain old or obsolete methods
--    if (ik->itable_length() > 0 &&
--        !ik->itable().check_no_old_or_obsolete_entries()) {
--      if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
--        log_trace(redefine, class, obsolete, metadata)
--          ("klassItable::check_no_old_or_obsolete_entries failure -- OLD or OBSOLETE method found -- class: %s",
--           ik->signature_name());
--        ik->itable().dump_itable();
--      }
--      no_old_methods = false;
--    }
--
--    // the constant pool cache should never contain non-deleted old or obsolete methods
--    if (ik->constants() != NULL &&
--        ik->constants()->cache() != NULL &&
--        !ik->constants()->cache()->check_no_old_or_obsolete_entries()) {
--      if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
--        log_trace(redefine, class, obsolete, metadata)
--          ("cp-cache::check_no_old_or_obsolete_entries failure -- OLD or OBSOLETE method found -- class: %s",
--           ik->signature_name());
--        ik->constants()->cache()->dump_cache();
--      }
--      no_old_methods = false;
--    }
--  }
--
--  // print and fail guarantee if old methods are found.
--  if (!no_old_methods) {
--    if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
--      dump_methods();
--    } else {
--      log_trace(redefine, class)("Use the '-Xlog:redefine+class*:' option "
--        "to see more info about the following guarantee() failure.");
--    }
--    guarantee(false, "OLD and/or OBSOLETE method(s) found");
-+  if (ik->vtable_length() > 0) {
-+    ResourceMark rm(_thread);
-+    assert(ik->vtable().check_no_old_or_obsolete_entries(), "old method found");
-+    ik->vtable().verify(tty, true);
-   }
- }
- 
-@@ -2051,15 +2016,6 @@ void VM_EnhancedRedefineClasses::dump_methods() {
-   }
- }
- 
--// TODO - is it called anywhere?
--void VM_EnhancedRedefineClasses::print_on_error(outputStream* st) const {
--  VM_Operation::print_on_error(st);
--  if (_the_class_oop != NULL) {
--    ResourceMark rm;
--    st->print_cr(", redefining class %s", _the_class_oop->external_name());
--  }
--}
--
- /**
-  Helper class to traverse all loaded classes and figure out if the class is affected by redefinition.
- */
-@@ -2093,7 +2049,7 @@ class AffectedKlassClosure : public KlassClosure {
-         log_trace(redefine, class, load)("found affected class: %s", klass->name()->as_C_string());
-         klass->set_redefinition_flag(Klass::MarkedAsAffected);
-         _affected_klasses->append(klass);
--         return;
-+        return;
-       }
-     }
- 
-@@ -2125,7 +2081,7 @@ 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);
--  // TODO: j10 - review chancge from SystemDictionary::classes_do(&closure);
-+  // Updated in j10, from original SystemDictionary::classes_do
-   ClassLoaderDataGraph::dictionary_classes_do(&closure);
-   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
- 
-@@ -2160,7 +2116,6 @@ static bool match_second(void* value, KlassPair elem) {
-  For each class to be redefined parse the bytecode and figure out the superclass and all interfaces.
-  First newly introduced classes (_class_defs) are scanned and then affected classed (_affected_klasses).
-  Affected flag is cleared (clear_redefinition_flag(Klass::MarkedAsAffected))
--
-  For each dependency create a KlassPair instance. Finnaly, affected classes (_affected_klasses) are sorted according to pairs.
-  
-  TODO - the class file is potentionally parsed multiple times - introduce a cache?
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index b712d69a193..37e63a1810f 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -195,8 +195,5 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   // Modifiable test must be shared between IsModifiableClass query
-   // and redefine implementation
-   static bool is_modifiable_class(oop klass_mirror);
--
--  // Error printing
--  void print_on_error(outputStream* st) const;
- };
- #endif // SHARE_VM_PRIMS_JVMTIREDEFINECLASSES2_HPP
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0011-AllowEnhancedClassRedefinition-is-false-disabled-by-.patch

@@ -0,0 +1,26 @@
+From 9c8d44a088bfd73f9be3678110a67a5ed8954c8a Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Tue, 6 Oct 2020 22:15:31 +0200
+Subject: [PATCH 11/17] 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 fc0405b5df2..607a39449dc 100644
+--- a/src/hotspot/share/runtime/globals.hpp
++++ b/src/hotspot/share/runtime/globals.hpp
+@@ -2682,7 +2682,7 @@ define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
+   experimental(bool, UseFastUnorderedTimeStamps, false,                     \
+           "Use platform unstable time where supported for timestamps only") \
+                                                                             \
+-  product(bool, AllowEnhancedClassRedefinition, true,                       \
++  product(bool, AllowEnhancedClassRedefinition, false,                      \
+              "Allow enhanced class redefinition beyond swapping method "    \
+              "bodies")                                                      \
+                                                                             \
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0011-Fix-check_class.patch

@@ -1,118 +0,0 @@
-From 1d147a5db94b531fa027d5e13e4dd5cbaef62952 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Sat, 29 Dec 2018 16:05:25 +0100
-Subject: [PATCH 11/48] Fix check_class
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 39 +++++++------------
- .../prims/jvmtiEnhancedRedefineClasses.hpp    |  5 +--
- 2 files changed, 16 insertions(+), 28 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 0aa1ac4ff80..c08b3e82b2e 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1,4 +1,4 @@
--/*
-+  /*
-  * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.
-  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-  *
-@@ -28,6 +28,7 @@
- #include "classfile/metadataOnStackMark.hpp"
- #include "classfile/systemDictionary.hpp"
- #include "classfile/verifier.hpp"
-+#include "classfile/dictionary.hpp"
- #include "interpreter/oopMapCache.hpp"
- #include "interpreter/rewriter.hpp"
- #include "logging/logStream.hpp"
-@@ -611,8 +612,7 @@ void VM_EnhancedRedefineClasses::doit() {
-     assert(new_version->super() == NULL || new_version->super()->new_version() == NULL, "Super class must be newest version");
-   }
-   log_trace(redefine, class, obsolete, metadata)("calling check_class");
--  CheckClass check_class(thread);
--  ClassLoaderDataGraph::classes_do(&check_class);
-+  ClassLoaderData::the_null_class_loader_data()->dictionary()->classes_do(check_class, thread);
- #ifdef PRODUCT
-   }
- #endif
-@@ -1822,19 +1822,6 @@ void VM_EnhancedRedefineClasses::compute_added_deleted_matching_methods() {
-   assert(_matching_methods_length + _added_methods_length == _new_methods->length(), "sanity");
- }
- 
--/**
--  FIXME - swap_annotations is never called, check that annotations work
--*/
--// TODO : delete it
--void VM_EnhancedRedefineClasses::swap_annotations(InstanceKlass* the_class,
--                                          InstanceKlass* new_class) {
--  // FIXME - probably original implementation only 
--  // Swap annotation fields values
--  Annotations* old_annotations = the_class->annotations();
--  the_class->set_annotations(new_class->annotations());
--  new_class->set_annotations(old_annotations);
--}
--
- // Install the redefinition of a class:
- //    - house keeping (flushing breakpoints and caches, deoptimizing
- //      dependent compiled code)
-@@ -1942,15 +1929,17 @@ void VM_EnhancedRedefineClasses::increment_class_counter(InstanceKlass *ik, TRAP
-   }
- }
- 
--void VM_EnhancedRedefineClasses::CheckClass::do_klass(Klass* k) {
--  HandleMark hm(_thread);
--  InstanceKlass *ik = (InstanceKlass *) k;
--  assert(ik->new_version() == NULL, "must be latest version in system dictionary");
-+void VM_EnhancedRedefineClasses::check_class(InstanceKlass* ik, TRAPS) {
-+  if (ik->is_instance_klass() && ik->old_version() != NULL) {
-+    HandleMark hm(THREAD);
-+
-+    assert(ik->new_version() == NULL, "must be latest version in system dictionary");
- 
--  if (ik->vtable_length() > 0) {
--    ResourceMark rm(_thread);
--    assert(ik->vtable().check_no_old_or_obsolete_entries(), "old method found");
--    ik->vtable().verify(tty, true);
-+    if (ik->vtable_length() > 0) {
-+      ResourceMark rm(THREAD);
-+      assert(ik->vtable().check_no_old_or_obsolete_entries(), "old method found");
-+      ik->vtable().verify(tty, true);
-+    }
-   }
- }
- 
-@@ -2017,7 +2006,7 @@ void VM_EnhancedRedefineClasses::dump_methods() {
- }
- 
- /**
-- Helper class to traverse all loaded classes and figure out if the class is affected by redefinition.
-+  Helper class to traverse all loaded classes and figure out if the class is affected by redefinition.
- */
- class AffectedKlassClosure : public KlassClosure {
-  private:
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 37e63a1810f..5b3ebc13661 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -144,15 +144,14 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   // Install the redefinition of a class
-   void redefine_single_class(InstanceKlass* new_class_oop, TRAPS);
- 
--  void swap_annotations(InstanceKlass* new_class,
--                        InstanceKlass* scratch_class);
--
-   // Increment the classRedefinedCount field in the specific InstanceKlass
-   // and in all direct and indirect subclasses.
-   void increment_class_counter(InstanceKlass *ik, TRAPS);
- 
-   void flush_dependent_code(InstanceKlass* k_h, TRAPS);
- 
-+  static void check_class(InstanceKlass* k_oop, TRAPS);
-+
-   static void dump_methods();
- 
-   // Check that there are no old or obsolete methods
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0012-Fix-force_forward-in-dead-space.patch

@@ -1,24 +0,0 @@
-From 84777c09ddbbbbd6a90de5b1f17a4101c8f076b8 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Sat, 29 Dec 2018 17:58:39 +0100
-Subject: [PATCH 12/48] Fix force_forward in dead space
-
----
- src/hotspot/share/gc/shared/space.inline.hpp | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/src/hotspot/share/gc/shared/space.inline.hpp b/src/hotspot/share/gc/shared/space.inline.hpp
-index 26e56ae6f7e..8c255d6d428 100644
---- a/src/hotspot/share/gc/shared/space.inline.hpp
-+++ b/src/hotspot/share/gc/shared/space.inline.hpp
-@@ -213,6 +213,7 @@ inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* c
-         // see if this is the first dead region.
-         if (first_dead == NULL) {
-           first_dead = cur_obj;
-+          force_forward = true;
-         }
-       }
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0012-add-jvmtiEnhancedRedefineClasses.-to-CMakeLists.txt.patch

@@ -1,7 +1,7 @@
-From 15690197a276a86054e1ec9724c877d6d871ca01 Mon Sep 17 00:00:00 2001
+From 69bc6c03ad25d485182d1b17f265a59ff98e3352 Mon Sep 17 00:00:00 2001
 From: Artem Khvastunov <artem.khvastunov@jetbrains.com>
 Date: Tue, 14 Apr 2020 19:11:35 +0200
-Subject: [PATCH 32/48] add jvmtiEnhancedRedefineClasses.* to CMakeLists.txt
+Subject: [PATCH 12/17] add jvmtiEnhancedRedefineClasses.* to CMakeLists.txt
 
 ---
  jb/project/hotspot-cmake/CMakeLists.txt | 2 ++
@@ -28,5 +28,5 @@ index 8b552c27206..6516e39058f 100644
  ../../../src/hotspot/share/prims/jvmtiEnvBase.cpp
  ../../../src/hotspot/share/prims/methodHandles.cpp
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0013-Cleanup.patch

@@ -1,25 +0,0 @@
-From 4d973861fbcd13dc50bd603f731c75d2013034c6 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Fri, 1 Mar 2019 18:45:13 +0100
-Subject: [PATCH 13/48] Cleanup
-
----
- src/hotspot/share/gc/shared/space.cpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/gc/shared/space.cpp b/src/hotspot/share/gc/shared/space.cpp
-index 947dff8ae0c..56b144b46f1 100644
---- a/src/hotspot/share/gc/shared/space.cpp
-+++ b/src/hotspot/share/gc/shared/space.cpp
-@@ -862,7 +862,7 @@ HeapWord* CompactibleSpace::forward_with_rescue(HeapWord* q, size_t size,
-   size_t forward_size = size;
- 
-   // (DCEVM) There is a new version of the class of q => different size
--  if (oop(q)->klass()->new_version() != NULL && oop(q)->klass()->new_version()->update_information() != NULL) {
-+  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");
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0013-Set-HOTSPOT_VM_DISTRO-Dynamic-Code-Evolution.patch

@@ -1,17 +1,17 @@
-From 603b446449aa715aa3f409fb49ed00169b89fd91 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Sun, 16 Dec 2018 09:55:31 +0100
-Subject: [PATCH 16/48] Add dcevm distro name
+From 5e66d1cd39dcae56adfa3a4785e8da47218d7b72 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Mon, 19 Oct 2020 20:00:04 +0200
+Subject: [PATCH 13/17] 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 b5a23138213..5c0a3242c80 100644
+index bb9d863c992..e462ab57217 100644
 --- a/make/autoconf/version-numbers
 +++ b/make/autoconf/version-numbers
-@@ -43,7 +43,7 @@ PRODUCT_NAME=OpenJDK
+@@ -44,7 +44,7 @@ PRODUCT_NAME=OpenJDK
  PRODUCT_SUFFIX="Runtime Environment"
  JDK_RC_PLATFORM_NAME=Platform
  COMPANY_NAME=N/A
@@ -21,5 +21,5 @@ index b5a23138213..5c0a3242c80 100644
  VENDOR_URL_BUG=https://bugreport.java.com/bugreport/
  VENDOR_URL_VM_BUG=https://bugreport.java.com/bugreport/crash.jsp
 -- 
-2.24.3 (Apple Git-128)
+2.23.0
 

jb/project/tools/patches/dcevm/0014-Add-codecache-flush-optimization-but-just-flush-all-.patch

@@ -1,61 +0,0 @@
-From 5f31460556d86fa0233e7998112a65483034fd45 Mon Sep 17 00:00:00 2001
-From: skybber <lada.dvorak7@gmail.com>
-Date: Sat, 29 Dec 2018 17:38:27 +0100
-Subject: [PATCH 14/48] Add codecache flush optimization, but just flush all
- cache.
-
-Redefined class can define a new method that overrides
-method in superclass which is already used in codecache for
-optimized non-virtual calls, etc...
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp     | 18 ++++++++++++------
- 1 file changed, 12 insertions(+), 6 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index c08b3e82b2e..4ca638548dc 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -486,9 +486,9 @@ 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) {
-+  // if (_max_redefinition_flags > Klass::ModifyClass) {
-     flush_dependent_code(NULL, thread);
--  //}
-+  // }
- 
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-@@ -1736,8 +1736,14 @@ void VM_EnhancedRedefineClasses::flush_dependent_code(InstanceKlass* k_h, TRAPS)
-   // All dependencies have been recorded from startup or this is a second or
-   // subsequent use of RedefineClasses
-   // FIXME: for now, deoptimize all!
--  if (0 && JvmtiExport::all_dependencies_are_recorded()) {
-+  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();
-+    }
-   } else {
-     CodeCache::mark_all_nmethods_for_deoptimization();
- 
-@@ -1852,9 +1858,9 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_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);
--  //}
-+//  if (_max_redefinition_flags <= Klass::ModifyClass) {
-+//    flush_dependent_code(the_class, THREAD);
-+//  }
- 
-   _old_methods = the_class->methods();
-   _new_methods = new_class->methods();
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0014-Fix-G1-nmethod-registration.patch

@@ -0,0 +1,71 @@
+From 5b1408b47bd86a5bd2a4aa1f39705687efc73223 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Sun, 11 Oct 2020 10:43:28 +0200
+Subject: [PATCH 14/17] 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 a8adfa5af47..4ee12b7021f 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -217,7 +217,14 @@ 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);
+@@ -520,8 +527,9 @@ 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);
+       }
+@@ -544,6 +552,11 @@ 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 62a0fbf54d4..d00109a0b92 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/0015-Initialize-method-s-_new_version-_old_version-to-NUL.patch

@@ -0,0 +1,26 @@
+From c5bae0e9c9c0b0a6e05a966648fb2ddaf9a16564 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Thu, 22 Oct 2020 20:15:20 +0200
+Subject: [PATCH 15/17] 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 031f255e632..a9556ecf0c4 100644
+--- a/src/hotspot/share/oops/method.cpp
++++ b/src/hotspot/share/oops/method.cpp
+@@ -83,7 +83,8 @@ 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/0016-Clear-dcevm-code-separation.patch

@@ -0,0 +1,191 @@
+From 5504812403a0673c428fc5589cd94f2c3fea7616 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Fri, 23 Oct 2020 10:20:26 +0200
+Subject: [PATCH 16/17] 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     | 14 ++++++++++----
+ .../instrumentation/jfrEventClassTransformer.cpp   |  2 +-
+ src/hotspot/share/oops/instanceKlass.cpp           | 10 ++++++----
+ src/hotspot/share/oops/method.cpp                  |  2 +-
+ src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp  |  2 +-
+ src/hotspot/share/runtime/reflection.cpp           |  2 +-
+ 8 files changed, 27 insertions(+), 17 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index 791b49c68ad..011a14eab32 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -1152,7 +1152,7 @@ InstanceKlass* SystemDictionary::resolve_from_stream(Symbol* class_name,
+     MutexLocker mu(SystemDictionary_lock, THREAD);
+ 
+     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;
+@@ -2153,7 +2153,7 @@ 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 b18682f9a12..590b5389b4d 100644
+--- a/src/hotspot/share/gc/serial/genMarkSweep.cpp
++++ b/src/hotspot/share/gc/serial/genMarkSweep.cpp
+@@ -343,7 +343,9 @@ 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 9dc184d02f5..bff1c3627b0 100644
+--- a/src/hotspot/share/interpreter/linkResolver.cpp
++++ b/src/hotspot/share/interpreter/linkResolver.cpp
+@@ -295,8 +295,13 @@ void LinkResolver::check_klass_accessability(Klass* ref_klass, Klass* sel_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,
+@@ -572,7 +577,8 @@ 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?");
+@@ -997,7 +1003,7 @@ void LinkResolver::resolve_field(fieldDescriptor& fd,
+       ResourceMark rm(THREAD);
+       stringStream ss;
+ 
+-      if (sel_klass != current_klass && sel_klass != current_klass->active_version()) {
++      if (sel_klass != current_klass && (!AllowEnhancedClassRedefinition || sel_klass != current_klass->active_version())) {
+         ss.print("Update to %s final field %s.%s attempted from a different class (%s) than the field's declaring class",
+                  is_static ? "static" : "non-static", resolved_klass->external_name(), fd.name()->as_C_string(),
+                 current_klass->external_name());
+diff --git a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
+index 8afe8985026..4e7b39406fa 100644
+--- a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
++++ b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
+@@ -1467,7 +1467,7 @@ static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStre
+                              NULL, // host klass
+                              NULL, // cp_patches
+                              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 4312c2c4ca9..7335f0cffc9 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -178,7 +178,9 @@ bool InstanceKlass::has_nest_member(InstanceKlass* k, TRAPS) const {
+       }
+ 
+       Klass* k2 = _constants->klass_at(cp_index, CHECK_false);
+-      k2 = k2->newest_version();
++      if (AllowEnhancedClassRedefinition) {
++        k2 = k2->newest_version();
++      }
+       if (k2 == k) {
+         log_trace(class, nestmates)("- class is listed as a nest member");
+         return true;
+@@ -837,7 +839,7 @@ bool InstanceKlass::link_class_impl(bool throw_verifyerror, 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);
+@@ -919,7 +921,7 @@ void InstanceKlass::initialize_impl(TRAPS) {
+     // that aren't expected to throw.  This would wreak havoc.  See 6320309.
+     // (DCEVM) Wait also for the old class version to be fully initialized.
+     while((is_being_initialized() && !is_reentrant_initialization(self))
+-        || (old_version() != NULL && InstanceKlass::cast(old_version())->is_being_initialized())) {
++        || (AllowEnhancedClassRedefinition && old_version() != NULL && InstanceKlass::cast(old_version())->is_being_initialized())) {
+         wait = true;
+       ol.waitUninterruptibly(CHECK);
+     }
+@@ -3617,7 +3619,7 @@ 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 implementor fields requires the Compile_lock, but this is sometimes
+diff --git a/src/hotspot/share/oops/method.cpp b/src/hotspot/share/oops/method.cpp
+index a9556ecf0c4..6c7edaca67e 100644
+--- a/src/hotspot/share/oops/method.cpp
++++ b/src/hotspot/share/oops/method.cpp
+@@ -2100,7 +2100,7 @@ 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 60604c645ff..325bffb7ad0 100644
+--- a/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
+@@ -51,7 +51,7 @@ 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())));
+     }
+   }
+diff --git a/src/hotspot/share/runtime/reflection.cpp b/src/hotspot/share/runtime/reflection.cpp
+index ed789b0bc2b..06f60855655 100644
+--- a/src/hotspot/share/runtime/reflection.cpp
++++ b/src/hotspot/share/runtime/reflection.cpp
+@@ -660,7 +660,7 @@ 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/0017-Fix-metadataOnStack-bug.patch

@@ -0,0 +1,160 @@
+From a9bc3c0b7acfe8432f4f50362df3d8f95d7b5d9d Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Fri, 23 Oct 2020 11:07:40 +0200
+Subject: [PATCH 17/17] Fix metadataOnStack bug
+
+---
+ .../share/classfile/classLoaderData.cpp       |  7 +-
+ .../share/classfile/metadataOnStackMark.cpp   | 67 ++++++++++---------
+ .../share/classfile/metadataOnStackMark.hpp   |  3 +-
+ .../share/prims/jvmtiRedefineClasses.cpp      |  2 +-
+ 4 files changed, 41 insertions(+), 38 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 1bc67adf5a7..bba5ce0511f 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
++++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -1398,13 +1398,10 @@ bool ClassLoaderDataGraph::do_unloading(bool clean_previous_versions) {
+   // Klassesoto delete.
+ 
+   // FIXME: dcevm - block asserts in MetadataOnStackMark
+-  bool walk_all_metadata = false;
+-  if (!AllowEnhancedClassRedefinition) {
+-    walk_all_metadata = clean_previous_versions &&
++  bool walk_all_metadata = clean_previous_versions &&
+                              JvmtiExport::has_redefined_a_class() &&
+                              InstanceKlass::has_previous_versions_and_reset();
+-    MetadataOnStackMark md_on_stack(walk_all_metadata);
+-  }
++  MetadataOnStackMark md_on_stack(walk_all_metadata, AllowEnhancedClassRedefinition);
+ 
+   // Save previous _unloading pointer for CMS which may add to unloading list before
+   // purging and we don't want to rewalk the previously unloaded class loader data.
+diff --git a/src/hotspot/share/classfile/metadataOnStackMark.cpp b/src/hotspot/share/classfile/metadataOnStackMark.cpp
+index 3a62c789702..9d7bdbde74b 100644
+--- a/src/hotspot/share/classfile/metadataOnStackMark.cpp
++++ b/src/hotspot/share/classfile/metadataOnStackMark.cpp
+@@ -46,23 +46,25 @@ NOT_PRODUCT(bool MetadataOnStackMark::_is_active = false;)
+ // it.  Class unloading only deletes in-error class files, methods created by
+ // the relocator and dummy constant pools.  None of these appear anywhere except
+ // in metadata Handles.
+-MetadataOnStackMark::MetadataOnStackMark(bool redefinition_walk) {
++MetadataOnStackMark::MetadataOnStackMark(bool redefinition_walk, bool ignore) : _ignore(ignore) {
+   assert(SafepointSynchronize::is_at_safepoint(), "sanity check");
+   assert(_used_buffers == NULL, "sanity check");
+   assert(!_is_active, "MetadataOnStackMarks do not nest");
+   NOT_PRODUCT(_is_active = true;)
+ 
+-  Threads::metadata_handles_do(Metadata::mark_on_stack);
++  if (!ignore) {
++    Threads::metadata_handles_do(Metadata::mark_on_stack);
+ 
+-  if (redefinition_walk) {
+-    Threads::metadata_do(Metadata::mark_on_stack);
+-    CodeCache::metadata_do(Metadata::mark_on_stack);
+-    CompileBroker::mark_on_stack();
+-    JvmtiCurrentBreakpoints::metadata_do(Metadata::mark_on_stack);
+-    ThreadService::metadata_do(Metadata::mark_on_stack);
++    if (redefinition_walk) {
++      Threads::metadata_do(Metadata::mark_on_stack);
++      CodeCache::metadata_do(Metadata::mark_on_stack);
++      CompileBroker::mark_on_stack();
++      JvmtiCurrentBreakpoints::metadata_do(Metadata::mark_on_stack);
++      ThreadService::metadata_do(Metadata::mark_on_stack);
+ #if INCLUDE_JVMCI
+-    JVMCIRuntime::metadata_do(Metadata::mark_on_stack);
++      JVMCIRuntime::metadata_do(Metadata::mark_on_stack);
+ #endif
++    }
+   }
+ }
+ 
+@@ -71,32 +73,35 @@ MetadataOnStackMark::~MetadataOnStackMark() {
+   // Unmark everything that was marked.   Can't do the same walk because
+   // redefine classes messes up the code cache so the set of methods
+   // might not be the same.
+-  retire_current_buffer();
+-
+-  MetadataOnStackBuffer* buffer = _used_buffers;
+-  while (buffer != NULL) {
+-    // Clear on stack state for all metadata.
+-    size_t size = buffer->size();
+-    for (size_t i  = 0; i < size; i++) {
+-      Metadata* md = buffer->at(i);
+-      md->set_on_stack(false);
++  if (!_ignore)
++  {
++    retire_current_buffer();
++
++    MetadataOnStackBuffer* buffer = _used_buffers;
++    while (buffer != NULL) {
++      // Clear on stack state for all metadata.
++      size_t size = buffer->size();
++      for (size_t i  = 0; i < size; i++) {
++        Metadata* md = buffer->at(i);
++        md->set_on_stack(false);
++      }
++
++      MetadataOnStackBuffer* next = buffer->next_used();
++
++      // Move the buffer to the free list.
++      buffer->clear();
++      buffer->set_next_used(NULL);
++      buffer->set_next_free(_free_buffers);
++      _free_buffers = buffer;
++
++      // Step to next used buffer.
++      buffer = next;
+     }
+ 
+-    MetadataOnStackBuffer* next = buffer->next_used();
+-
+-    // Move the buffer to the free list.
+-    buffer->clear();
+-    buffer->set_next_used(NULL);
+-    buffer->set_next_free(_free_buffers);
+-    _free_buffers = buffer;
++    _used_buffers = NULL;
+ 
+-    // Step to next used buffer.
+-    buffer = next;
++    NOT_PRODUCT(_is_active = false;)
+   }
+-
+-  _used_buffers = NULL;
+-
+-  NOT_PRODUCT(_is_active = false;)
+ }
+ 
+ void MetadataOnStackMark::retire_buffer(MetadataOnStackBuffer* buffer) {
+diff --git a/src/hotspot/share/classfile/metadataOnStackMark.hpp b/src/hotspot/share/classfile/metadataOnStackMark.hpp
+index 8da4ac6f92b..6d327ab98f2 100644
+--- a/src/hotspot/share/classfile/metadataOnStackMark.hpp
++++ b/src/hotspot/share/classfile/metadataOnStackMark.hpp
+@@ -47,8 +47,9 @@ class MetadataOnStackMark : public StackObj {
+   static MetadataOnStackBuffer* allocate_buffer();
+   static void retire_buffer(MetadataOnStackBuffer* buffer);
+ 
++  bool _ignore;
+  public:
+-  MetadataOnStackMark(bool redefinition_walk);
++  MetadataOnStackMark(bool redefinition_walk, bool ignore);
+    ~MetadataOnStackMark();
+ 
+   static void record(Metadata* m);
+diff --git a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
+index 1b2070d686f..1178c863c30 100644
+--- a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp
+@@ -199,7 +199,7 @@ void VM_RedefineClasses::doit() {
+ 
+   // Mark methods seen on stack and everywhere else so old methods are not
+   // cleaned up if they're on the stack.
+-  MetadataOnStackMark md_on_stack(true);
++  MetadataOnStackMark md_on_stack(true, false);
+   HandleMark hm(thread);   // make sure any handles created are deleted
+                            // before the stack walk again.
+ 
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0017-java.desktop-com.sun.beans-ALL-UNNAMED.patch

@@ -1,24 +0,0 @@
-From 6869b6f67f8c8db57d91ea0ef9f33aaf44def1db Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Tue, 19 Nov 2019 19:58:27 +0100
-Subject: [PATCH 17/48] java.desktop/com.sun.beans=ALL-UNNAMED
-
----
- src/hotspot/share/runtime/arguments.cpp | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index c75bb5d8f49..ba6e78d6daa 100644
---- a/src/hotspot/share/runtime/arguments.cpp
-+++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -4327,5 +4327,7 @@ void Arguments::setup_hotswap_agent() {
-   create_numbered_property("jdk.module.addopens", "java.base/jdk.internal.loader=ALL-UNNAMED", addopens_count++);
-   // java.beans.Introspector access
-   create_numbered_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++);
- 
- }
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0018-increment_class_counter-using-orig-dcevm-code.patch

@@ -1,113 +0,0 @@
-From bbcbaa9d5814017565b8f7f0d86844e9f64905c1 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Tue, 19 Nov 2019 21:07:59 +0100
-Subject: [PATCH 18/48] increment_class_counter() using orig dcevm code
-
-Probably it is cause of SISEGV on:
-_
-VM_EnhancedRedefineClasses::redefine_single_class->java_mirror()
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 39 ++++++-------------
- 1 file changed, 12 insertions(+), 27 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 4ca638548dc..efb9e806508 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1146,9 +1146,9 @@ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_
- }
- 
- 
--/** 
-+/**
-   Searches for the class bytecode of the given class and returns it as a byte array.
--  
-+
-   @param the_class definition of a class, either existing class or new_class
-   @param class_bytes - if the class is redefined, it contains new class definition, otherwise just original class bytecode.
-   @param class_byte_count - size of class_bytes
-@@ -1460,7 +1460,7 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
- //
- //      ik->itable()->adjust_method_entries(the_class, &trace_name_printed);
- //    }
--   
-+
-    constantPoolHandle other_cp = constantPoolHandle(ik->constants());
- 
-   // Update host klass of anonymous classes (for example, produced by lambdas) to newest version.
-@@ -1764,7 +1764,7 @@ void VM_EnhancedRedefineClasses::flush_dependent_code(InstanceKlass* k_h, TRAPS)
- /**
-   Compare _old_methods and _new_methods arrays and store the result into
- 	_matching_old_methods, _matching_new_methods, _added_methods, _deleted_methods
--  
-+
-   Setup _old_methods and _new_methods before the call - it should be called for one class only!
- */
- void VM_EnhancedRedefineClasses::compute_added_deleted_matching_methods() {
-@@ -1898,13 +1898,13 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
-     ResourceMark rm(THREAD);
-     // increment the classRedefinedCount field in the_class and in any
-     // direct and indirect subclasses of the_class
--    increment_class_counter(the_class, THREAD);
-+    increment_class_counter(new_class, THREAD);
-     log_info(redefine, class, load)
-       ("redefined name=%s, count=%d (avail_mem=" UINT64_FORMAT "K)",
--       the_class->external_name(), java_lang_Class::classRedefinedCount(the_class->java_mirror()), os::available_memory() >> 10);
-+       new_class->external_name(), java_lang_Class::classRedefinedCount(new_class->java_mirror()), os::available_memory() >> 10);
-     Events::log_redefinition(THREAD, "redefined class name=%s, count=%d",
--                             the_class->external_name(),
--                             java_lang_Class::classRedefinedCount(the_class->java_mirror()));
-+                             new_class->external_name(),
-+                             java_lang_Class::classRedefinedCount(new_class->java_mirror()));
- 
-   }
-   _timer_rsc_phase2.stop();
-@@ -1914,25 +1914,10 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
- // Increment the classRedefinedCount field in the specific InstanceKlass
- // and in all direct and indirect subclasses.
- void VM_EnhancedRedefineClasses::increment_class_counter(InstanceKlass *ik, TRAPS) {
--  oop class_mirror = ik->java_mirror();
-+  oop class_mirror = ik->old_version()->java_mirror();
-   Klass* class_oop = java_lang_Class::as_Klass(class_mirror);
-   int new_count = java_lang_Class::classRedefinedCount(class_mirror) + 1;
--  java_lang_Class::set_classRedefinedCount(ik->new_version()->java_mirror(), new_count);
--
--  if (class_oop != _the_class_oop) {
--    // _the_class_oop count is printed at end of redefine_single_class()
--    log_debug(redefine, class, subclass)("updated count in subclass=%s to %d", ik->external_name(), new_count);
--  }
--
--  for (Klass *subk = ik->subklass(); subk != NULL;
--       subk = subk->next_sibling()) {
--    if (subk->is_instance_klass()) {
--      // Only update instanceKlasses
--      InstanceKlass *subik = InstanceKlass::cast(subk);
--      // recursively do subclasses of the current subclass
--      increment_class_counter(subik, THREAD);
--    }
--  }
-+  java_lang_Class::set_classRedefinedCount(ik->java_mirror(), new_count);
- }
- 
- void VM_EnhancedRedefineClasses::check_class(InstanceKlass* ik, TRAPS) {
-@@ -2063,7 +2048,7 @@ class AffectedKlassClosure : public KlassClosure {
- 
- /**
-   Find all affected classes by current redefinition (either because of redefine, class hierarchy or interface change).
--  Affected classes are stored in _affected_klasses and parent classes always precedes child class.  
-+  Affected classes are stored in _affected_klasses and parent classes always precedes child class.
- */
- jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
-   for (int i = 0; i < _class_count; i++) {
-@@ -2112,7 +2097,7 @@ static bool match_second(void* value, KlassPair elem) {
-  First newly introduced classes (_class_defs) are scanned and then affected classed (_affected_klasses).
-  Affected flag is cleared (clear_redefinition_flag(Klass::MarkedAsAffected))
-  For each dependency create a KlassPair instance. Finnaly, affected classes (_affected_klasses) are sorted according to pairs.
-- 
-+
-  TODO - the class file is potentionally parsed multiple times - introduce a cache?
- */
- jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0019-Allow-11715ha-class-initializer-calls.patch

@@ -1,38 +0,0 @@
-From 62c65c226bbc4fadbc598db1a2ac7d05d17ae731 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Thu, 21 Nov 2019 19:30:07 +0100
-Subject: [PATCH 19/48] Allow 11715ha class initializer calls
-
----
- src/hotspot/share/classfile/vmSymbols.hpp      | 1 +
- src/hotspot/share/interpreter/linkResolver.cpp | 2 +-
- 2 files changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
-index e2bac31b27f..6eeda3b8f68 100644
---- a/src/hotspot/share/classfile/vmSymbols.hpp
-+++ b/src/hotspot/share/classfile/vmSymbols.hpp
-@@ -340,6 +340,7 @@
-   /* common method and field names */                                                             \
-   template(object_initializer_name,                   "<init>")                                   \
-   template(class_initializer_name,                    "<clinit>")                                 \
-+  template(ha_class_initializer_name,                 "$$ha$clinit")                              \
-   template(println_name,                              "println")                                  \
-   template(printStackTrace_name,                      "printStackTrace")                          \
-   template(main_name,                                 "main")                                     \
-diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
-index b9ccdee8cca..cb76d2ef50c 100644
---- a/src/hotspot/share/interpreter/linkResolver.cpp
-+++ b/src/hotspot/share/interpreter/linkResolver.cpp
-@@ -1009,7 +1009,7 @@ void LinkResolver::resolve_field(fieldDescriptor& fd,
-         assert(!m.is_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()->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());
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0020-Disable-HA-in-keytool.patch

@@ -1,24 +0,0 @@
-From 88b6f7a27e35d9ed3b82418b82c1cb1fe14f61e6 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Tue, 26 Nov 2019 22:13:07 +0100
-Subject: [PATCH 20/48] Disable HA in keytool
-
----
- make/launcher/Launcher-java.base.gmk | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/make/launcher/Launcher-java.base.gmk b/make/launcher/Launcher-java.base.gmk
-index 5ee4530004b..88c1a14b2aa 100644
---- a/make/launcher/Launcher-java.base.gmk
-+++ b/make/launcher/Launcher-java.base.gmk
-@@ -63,6 +63,7 @@ endif
- 
- $(eval $(call SetupBuildLauncher, keytool, \
-     MAIN_CLASS := sun.security.tools.keytool.Main, \
-+    JAVA_ARGS := -XX:+DisableHotswapAgent, \
- ))
- 
- ################################################################################
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0021-Open-jdk-module-to-access-ClassInfo.CACHE.patch

@@ -1,24 +0,0 @@
-From 7fb12fc40a76a37ce67b051276a7ef582de1b04a Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Thu, 28 Nov 2019 18:53:11 +0100
-Subject: [PATCH 21/48] Open jdk module to access ClassInfo.CACHE
-
----
- src/hotspot/share/runtime/arguments.cpp | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index ba6e78d6daa..0081f688120 100644
---- a/src/hotspot/share/runtime/arguments.cpp
-+++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -4329,5 +4329,7 @@ void Arguments::setup_hotswap_agent() {
-   create_numbered_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++);
-+  // com.sun.beans.introspect.ClassInfo access
-+  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans.introspect=ALL-UNNAMED", addopens_count++);
- 
- }
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0022-Open-java.base-java.io-module.patch

@@ -1,25 +0,0 @@
-From d3d53f242337bd3bc79917f922ff569c0a112f3b Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sun, 8 Dec 2019 17:55:01 +0100
-Subject: [PATCH 22/48] Open java.base/java.io module
-
----
- src/hotspot/share/runtime/arguments.cpp | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index 0081f688120..0cdd8c88315 100644
---- a/src/hotspot/share/runtime/arguments.cpp
-+++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -4325,6 +4325,8 @@ void Arguments::setup_hotswap_agent() {
-   create_numbered_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++);
-+  // 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++);
-   // java.beans.Introspector access
-   create_numbered_property("jdk.module.addopens", "java.desktop/java.beans=ALL-UNNAMED", addopens_count++);
-   // java.beans.Introspector access
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0023-Fix-fieldDescriptor.inline.hpp.patch

@@ -1,54 +0,0 @@
-From 833ef503677e066b3639e7418a22587992df1829 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@mailprofiler.com>
-Date: Fri, 6 Mar 2020 09:28:24 +0100
-Subject: [PATCH 23/48] Fix fieldDescriptor.inline.hpp
-
----
- .../share/prims/jvmtiEnhancedRedefineClasses.cpp       | 10 ++++++----
- 1 file changed, 6 insertions(+), 4 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index efb9e806508..a404fd3f016 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -49,6 +49,7 @@
- #include "runtime/deoptimization.hpp"
- #include "runtime/jniHandles.inline.hpp"
- #include "runtime/relocator.hpp"
-+#include "runtime/fieldDescriptor.inline.hpp"
- #include "utilities/bitMap.inline.hpp"
- #include "prims/jvmtiThreadState.inline.hpp"
- #include "utilities/events.hpp"
-@@ -490,6 +491,11 @@ void VM_EnhancedRedefineClasses::doit() {
-     flush_dependent_code(NULL, 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);
-+
-+
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-     bool trace_name_printed = false;
-@@ -1890,9 +1896,6 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
-   }
-   */
- 
--  // Adjust constantpool caches for all classes that reference methods of the evolved class.
--  ClearCpoolCacheAndUnpatch clear_cpool_cache(THREAD);
--  ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
- 
-   {
-     ResourceMark rm(THREAD);
-@@ -1905,7 +1908,6 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
-     Events::log_redefinition(THREAD, "redefined class name=%s, count=%d",
-                              new_class->external_name(),
-                              java_lang_Class::classRedefinedCount(new_class->java_mirror()));
--
-   }
-   _timer_rsc_phase2.stop();
- } // end redefine_single_class()
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0024-Fix-clear_cpool_cache.patch

@@ -1,38 +0,0 @@
-From 1af8b1f3f891388a37cc71076c324d3905ab2a46 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@mailprofiler.com>
-Date: Fri, 6 Mar 2020 15:46:51 +0100
-Subject: [PATCH 24/48] Fix clear_cpool_cache
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 8 +++-----
- 1 file changed, 3 insertions(+), 5 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index a404fd3f016..1f5a67f8866 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -491,11 +491,6 @@ void VM_EnhancedRedefineClasses::doit() {
-     flush_dependent_code(NULL, 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);
--
--
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-     bool trace_name_printed = false;
-@@ -1896,6 +1891,9 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
-   }
-   */
- 
-+  // Adjust constantpool caches for all classes that reference methods of the evolved class.
-+  ClearCpoolCacheAndUnpatch clear_cpool_cache(THREAD);
-+  ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
- 
-   {
-     ResourceMark rm(THREAD);
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0025-Refactor-ClearCpoolCacheAndUnpatch.patch

@@ -1,163 +0,0 @@
-From def550828411b677ed2d7807e51cc5ffe70331fc Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <vladimir.dvorak@mailprofiler.com>
-Date: Mon, 9 Mar 2020 09:54:04 +0100
-Subject: [PATCH 25/48] Refactor ClearCpoolCacheAndUnpatch
-
-Call it after redefinition of all classes
----
- make/common/MakeBase.gmk                      |  4 +-
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 98 ++++---------------
- 2 files changed, 21 insertions(+), 81 deletions(-)
-
-diff --git a/make/common/MakeBase.gmk b/make/common/MakeBase.gmk
-index a040effe83a..c33a7d52ddb 100644
---- a/make/common/MakeBase.gmk
-+++ b/make/common/MakeBase.gmk
-@@ -1044,7 +1044,9 @@ DependOnVariableHelper = \
-               $(info NewVariable $1: >$(strip $($1))<) \
-               $(info OldVariable $1: >$(strip $($1_old))<)) \
-           $(call WriteFile, $1_old:=$(call DoubleDollar,$(call EscapeHash,$($1))), \
--              $($1_filename))) \
-+ $($1_filename)) \
-+ $(eval $($1_filename): ) \
-+ ) \
-         $($1_filename) \
-     )
- 
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 1f5a67f8866..24fb76b6de4 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -491,6 +491,11 @@ void VM_EnhancedRedefineClasses::doit() {
-     flush_dependent_code(NULL, 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);
-+
-+
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-     bool trace_name_printed = false;
-@@ -1383,86 +1388,23 @@ void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {
-     }
-   }
- 
--// Unevolving classes may point to methods of the_class directly
-+// Unevolving classes may point to old methods directly
- // from their constant pool caches, itables, and/or vtables. We
--// use the ClassLoaderDataGraph::classes_do() facility and this helper
--// to fix up these pointers.
--// Adjust cpools and vtables closure
-+// use the SystemDictionary::classes_do() facility and this helper
-+// to fix up these pointers. Additional field offsets and vtable indices
-+// in the constant pool cache entries are fixed.
-+//
-+// Note: We currently don't support updating the vtable in
-+// arrayKlassOops. See Open Issues in jvmtiRedefineClasses.hpp.
- void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
--  // This is a very busy routine. We don't want too much tracing
--  // printed out.
--  bool trace_name_printed = false;
--  InstanceKlass *the_class = InstanceKlass::cast(_the_class_oop);
--
--  // If the class being redefined is java.lang.Object, we need to fix all
--  // array class vtables also
--  if (k->is_array_klass() && _the_class_oop == SystemDictionary::Object_klass()) {
--    k->vtable().adjust_method_entries(the_class, &trace_name_printed);
--  } else if (k->is_instance_klass()) {
--    HandleMark hm(_thread);
--    InstanceKlass *ik = InstanceKlass::cast(k);
-+  if (!k->is_instance_klass()) {
-+	return;
-+  }
- 
--    // HotSpot specific optimization! HotSpot does not currently
--    // support delegation from the bootstrap class loader to a
--    // user-defined class loader. This means that if the bootstrap
--    // class loader is the initiating class loader, then it will also
--    // be the defining class loader. This also means that classes
--    // loaded by the bootstrap class loader cannot refer to classes
--    // loaded by a user-defined class loader. Note: a user-defined
--    // class loader can delegate to the bootstrap class loader.
--    //
--    // If the current class being redefined has a user-defined class
--    // loader as its defining class loader, then we can skip all
--    // classes loaded by the bootstrap class loader.
--    bool is_user_defined =
--            InstanceKlass::cast(_the_class_oop)->class_loader() != NULL;
--    if (is_user_defined && ik->class_loader() == NULL) {
--       return;
--    }
--
--    // Fix the vtable embedded in the_class and subclasses of the_class,
--    // if one exists. We discard scratch_class and we don't keep an
--    // InstanceKlass around to hold obsolete methods so we don't have
--    // any other InstanceKlass embedded vtables to update. The vtable
--    // holds the Method*s for virtual (but not final) methods.
--    // Default methods, or concrete methods in interfaces are stored
--    // in the vtable, so if an interface changes we need to check
--    // adjust_method_entries() for every InstanceKlass, which will also
--    // adjust the default method vtable indices.
--    // We also need to adjust any default method entries that are
--    // not yet in the vtable, because the vtable setup is in progress.
--    // This must be done after we adjust the default_methods and
--    // default_vtable_indices for methods already in the vtable.
--    // If redefining Unsafe, walk all the vtables looking for entries.
--// FIXME - code from standard redefine - if needed, it should switch to new_class
--//    if (ik->vtable_length() > 0 && (_the_class_oop->is_interface()
--//        || _the_class_oop == SystemDictionary::internal_Unsafe_klass()
--//        || ik->is_subtype_of(_the_class_oop))) {
--//      // ik->vtable() creates a wrapper object; rm cleans it up
--//      ResourceMark rm(_thread);
--//
--//      ik->vtable()->adjust_method_entries(the_class, &trace_name_printed);
--//      ik->adjust_default_methods(the_class, &trace_name_printed);
--//    }
--
--    // If the current class has an itable and we are either redefining an
--    // interface or if the current class is a subclass of the_class, then
--    // we potentially have to fix the itable. If we are redefining an
--    // interface, then we have to call adjust_method_entries() for
--    // every InstanceKlass that has an itable since there isn't a
--    // subclass relationship between an interface and an InstanceKlass.
--    // If redefining Unsafe, walk all the itables looking for entries.
--// FIXME - code from standard redefine - if needed, it should switch to new_class
--//    if (ik->itable_length() > 0 && (_the_class_oop->is_interface()
--//        || _the_class_oop == SystemDictionary::internal_Unsafe_klass()
--//        || ik->is_subclass_of(_the_class_oop))) {
--//      // ik->itable() creates a wrapper object; rm cleans it up
--//      ResourceMark rm(_thread);
--//
--//      ik->itable()->adjust_method_entries(the_class, &trace_name_printed);
--//    }
-+  HandleMark hm(_thread);
-+  InstanceKlass *ik = InstanceKlass::cast(k);
- 
--   constantPoolHandle other_cp = constantPoolHandle(ik->constants());
-+  constantPoolHandle other_cp = constantPoolHandle(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) {
-@@ -1491,7 +1433,6 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
-   if (RewriteBytecodes) {
-     ik->methods_do(unpatch_bytecode);
-   }
--  }
- }
- 
- // Clean method data for this class
-@@ -1891,9 +1832,6 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
-   }
-   */
- 
--  // Adjust constantpool caches for all classes that reference methods of the evolved class.
--  ClearCpoolCacheAndUnpatch clear_cpool_cache(THREAD);
--  ClassLoaderDataGraph::classes_do(&clear_cpool_cache);
- 
-   {
-     ResourceMark rm(THREAD);
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0027-Update-klass-reference-in-Klass.implementor.patch

@@ -1,60 +0,0 @@
-From 9a7abdf08bf207f5265a552500446c3178bf5794 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Fri, 10 Apr 2020 23:28:07 +0200
-Subject: [PATCH 27/48] Update klass reference in Klass.implementor()
-
-If interface X is removed from class Y then old reference to Y could be
-stored in X.implementor()
----
- .../share/prims/jvmtiEnhancedRedefineClasses.cpp     | 12 ++++++++++++
- .../share/prims/jvmtiEnhancedRedefineClasses.hpp     | 11 -----------
- 2 files changed, 12 insertions(+), 11 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 24fb76b6de4..f6d2d3a40fe 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1411,6 +1411,18 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
-     ik->set_host_klass(InstanceKlass::cast(ik->host_klass()->newest_version()));
-   }
- 
-+  // Update implementor if there is only one, in this case implementor() can reference old class
-+  if (ik->is_interface()) {
-+    Klass* implKlass = ik->implementor();
-+    if (implKlass != NULL && implKlass != ik && implKlass->new_version() != NULL) {
-+      InstanceKlass* newest_impl = InstanceKlass::cast(implKlass->newest_version());
-+      ik->init_implementor();
-+      if (newest_impl->implements_interface(ik)) {
-+        ik->add_implementor(newest_impl);
-+      }
-+    }
-+  }
-+
-   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);
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 5b3ebc13661..2d114635ee5 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -69,17 +69,6 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-   // RetransformClasses.  Indicate which.
-   JvmtiClassLoadKind          _class_load_kind;
- 
--  // _index_map_count is just an optimization for knowing if
--  // _index_map_p contains any entries.
--  int                         _index_map_count;
--  intArray *                  _index_map_p;
--
--  // _operands_index_map_count is just an optimization for knowing if
--  // _operands_index_map_p contains any entries.
--  int                         _operands_cur_length;
--  int                         _operands_index_map_count;
--  intArray *                  _operands_index_map_p;
--
-   GrowableArray<InstanceKlass*>*      _new_classes;
-   jvmtiError                  _res;
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0028-Fix-DirectMethodHandle-accessors-klasses.patch

@@ -1,96 +0,0 @@
-From 8f13d3b4ba9aecd847b7da306055ba53ee2e29d0 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Fri, 10 Apr 2020 23:30:21 +0200
-Subject: [PATCH 28/48] Fix DirectMethodHandle accessors klasses
-
----
- src/hotspot/share/classfile/javaClasses.cpp | 28 +++++++++++++++------
- src/hotspot/share/classfile/javaClasses.hpp |  4 +++
- 2 files changed, 24 insertions(+), 8 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/javaClasses.cpp b/src/hotspot/share/classfile/javaClasses.cpp
-index a89443d22ea..ea0588e5388 100644
---- a/src/hotspot/share/classfile/javaClasses.cpp
-+++ b/src/hotspot/share/classfile/javaClasses.cpp
-@@ -3641,14 +3641,20 @@ void java_lang_invoke_DirectMethodHandle_StaticAccessor::set_static_offset(oop d
-   dmh->long_field_put(_static_offset_offset, static_offset);
- }
- 
-+#define DIRECTMETHODHANDLE_STATIC_ACCESSOR_FIELDS_DO(macro) \
-+  macro(_static_offset_offset, k, vmSymbols::static_offset_name(), long_signature, false)
- 
- void java_lang_invoke_DirectMethodHandle_StaticAccessor::compute_offsets() {
--  Klass* klass_oop = SystemDictionary::DirectMethodHandle_StaticAccessor_klass();
--  if (klass_oop != NULL) {
--    compute_offset(_static_offset_offset, InstanceKlass::cast(klass_oop), vmSymbols::static_offset_name(), vmSymbols::long_signature());
--  }
-+  InstanceKlass* k = SystemDictionary::DirectMethodHandle_StaticAccessor_klass();
-+  DIRECTMETHODHANDLE_STATIC_ACCESSOR_FIELDS_DO(FIELD_COMPUTE_OFFSET);
- }
- 
-+#if INCLUDE_CDS
-+void java_lang_invoke_DirectMethodHandle_StaticAccessor::serialize_offsets(SerializeClosure* f) {
-+  DIRECTMETHODHANDLE_STATIC_ACCESSOR_FIELDS_DO(FIELD_SERIALIZE_OFFSET);
-+}
-+#endif
-+
- // Support for java_lang_invoke_DirectMethodHandle$Accessor
- 
- int java_lang_invoke_DirectMethodHandle_Accessor::_field_offset_offset;
-@@ -3663,14 +3669,20 @@ void java_lang_invoke_DirectMethodHandle_Accessor::set_field_offset(oop dmh, int
-   dmh->int_field_put(_field_offset_offset, field_offset);
- }
- 
-+#define DIRECTMETHODHANDLE_ACCESSOR_FIELDS_DO(macro) \
-+  macro(_field_offset_offset, k, vmSymbols::field_offset_name(), int_signature, false)
- 
- void java_lang_invoke_DirectMethodHandle_Accessor::compute_offsets() {
--  Klass* klass_oop = SystemDictionary::DirectMethodHandle_Accessor_klass();
--  if (klass_oop != NULL) {
--    compute_offset(_field_offset_offset, InstanceKlass::cast(klass_oop), vmSymbols::field_offset_name(), vmSymbols::int_signature());
--  }
-+  InstanceKlass* k = SystemDictionary::DirectMethodHandle_Accessor_klass();
-+  DIRECTMETHODHANDLE_ACCESSOR_FIELDS_DO(FIELD_COMPUTE_OFFSET);
- }
- 
-+#if INCLUDE_CDS
-+void java_lang_invoke_DirectMethodHandle_Accessor::serialize_offsets(SerializeClosure* f) {
-+  DIRECTMETHODHANDLE_ACCESSOR_FIELDS_DO(FIELD_SERIALIZE_OFFSET);
-+}
-+#endif
-+
- // Support for java_lang_invoke_MethodHandle
- 
- int java_lang_invoke_MethodHandle::_type_offset;
-diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
-index ceb1670df5d..55f9fa62e2b 100644
---- a/src/hotspot/share/classfile/javaClasses.hpp
-+++ b/src/hotspot/share/classfile/javaClasses.hpp
-@@ -67,6 +67,8 @@
-   f(java_lang_invoke_LambdaForm) \
-   f(java_lang_invoke_MethodType) \
-   f(java_lang_invoke_CallSite) \
-+  f(java_lang_invoke_DirectMethodHandle_StaticAccessor) \
-+  f(java_lang_invoke_DirectMethodHandle_Accessor) \
-   f(java_lang_invoke_MethodHandleNatives_CallSiteContext) \
-   f(java_security_AccessControlContext) \
-   f(java_lang_reflect_AccessibleObject) \
-@@ -1077,6 +1079,7 @@ class java_lang_invoke_DirectMethodHandle_StaticAccessor: AllStatic {
-   static bool is_instance(oop obj) {
-     return obj != NULL && is_subclass(obj->klass());
-   }
-+  static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
- };
- 
- // Interface to java.lang.invoke.DirectMethodHandle$Accessor objects
-@@ -1101,6 +1104,7 @@ class java_lang_invoke_DirectMethodHandle_Accessor: AllStatic {
-   static bool is_instance(oop obj) {
-     return obj != NULL && is_subclass(obj->klass());
-   }
-+  static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
- };
- 
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0029-cleanup-direct-method-handles-code.patch

@@ -1,60 +0,0 @@
-From cbad9c34bf8920d772c646d041d4fc04fea203cc Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sat, 11 Apr 2020 12:07:43 +0200
-Subject: [PATCH 29/48] cleanup direct method handles code
-
----
- src/hotspot/share/classfile/javaClasses.hpp        | 10 ++++------
- src/hotspot/share/classfile/javaClasses.inline.hpp |  8 ++++++++
- 2 files changed, 12 insertions(+), 6 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
-index 55f9fa62e2b..da004d1b307 100644
---- a/src/hotspot/share/classfile/javaClasses.hpp
-+++ b/src/hotspot/share/classfile/javaClasses.hpp
-@@ -1076,9 +1076,8 @@ class java_lang_invoke_DirectMethodHandle_StaticAccessor: AllStatic {
-   static bool is_subclass(Klass* klass) {
-     return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_StaticAccessor_klass());
-   }
--  static bool is_instance(oop obj) {
--    return obj != NULL && is_subclass(obj->klass());
--  }
-+  static bool is_instance(oop obj);
-+
-   static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
- };
- 
-@@ -1101,9 +1100,8 @@ class java_lang_invoke_DirectMethodHandle_Accessor: AllStatic {
-   static bool is_subclass(Klass* klass) {
-     return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_Accessor_klass());
-   }
--  static bool is_instance(oop obj) {
--    return obj != NULL && is_subclass(obj->klass());
--  }
-+  static bool is_instance(oop obj);
-+
-   static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
- };
- 
-diff --git a/src/hotspot/share/classfile/javaClasses.inline.hpp b/src/hotspot/share/classfile/javaClasses.inline.hpp
-index 6c5787f4b70..ba9cffa8c62 100644
---- a/src/hotspot/share/classfile/javaClasses.inline.hpp
-+++ b/src/hotspot/share/classfile/javaClasses.inline.hpp
-@@ -175,6 +175,14 @@ inline bool java_lang_invoke_DirectMethodHandle::is_instance(oop obj) {
-   return obj != NULL && is_subclass(obj->klass());
- }
- 
-+inline bool java_lang_invoke_DirectMethodHandle_StaticAccessor::is_instance(oop obj) {
-+  return obj != NULL && is_subclass(obj->klass());
-+}
-+
-+inline bool java_lang_invoke_DirectMethodHandle_Accessor::is_instance(oop obj) {
-+  return obj != NULL && is_subclass(obj->klass());
-+}
-+
- inline bool java_lang_Module::is_instance(oop obj) {
-   return obj != NULL && obj->klass() == SystemDictionary::Module_klass();
- }
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0030-Add-init_implementor_from_redefine-that-skips-compil.patch

@@ -1,68 +0,0 @@
-From e3b94671ce5108a91e3a3e92b01eea07731c7639 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sat, 11 Apr 2020 17:52:13 +0200
-Subject: [PATCH 30/48] Add init_implementor_from_redefine, that skips compiler
- lock assert
-
----
- src/hotspot/share/oops/instanceKlass.cpp               | 10 +++++++++-
- src/hotspot/share/oops/instanceKlass.hpp               |  1 +
- .../share/prims/jvmtiEnhancedRedefineClasses.cpp       |  2 +-
- 3 files changed, 11 insertions(+), 2 deletions(-)
-
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index 8cbd4b8edf2..c04bdf5abfc 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -789,7 +789,7 @@ bool InstanceKlass::link_class_impl(bool throw_verifyerror, TRAPS) {
-     if (!is_linked()) {
-       if (!is_rewritten()) {
-         // In cases, 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 
-+        // then second redefinition fails with cannot cast klass exception. So we currently turn off bytecode verification
-         // on redefinition.
-         if (!newest_version()->is_redefining()) {
-           bool verify_ok = verify_code(throw_verifyerror, THREAD);
-@@ -1139,6 +1139,14 @@ void InstanceKlass::init_implementor() {
-   }
- }
- 
-+void InstanceKlass::init_implementor_from_redefine() {
-+  assert(is_interface(), "not interface");
-+  Klass** addr = adr_implementor();
-+  assert(addr != NULL, "null addr");
-+  if (addr != NULL) {
-+    *addr = NULL;
-+  }
-+}
- 
- void InstanceKlass::process_interfaces(Thread *thread) {
-   // link this class into the implementors list of every interface it implements
-diff --git a/src/hotspot/share/oops/instanceKlass.hpp b/src/hotspot/share/oops/instanceKlass.hpp
-index 2cc98b636f1..e8107a39813 100644
---- a/src/hotspot/share/oops/instanceKlass.hpp
-+++ b/src/hotspot/share/oops/instanceKlass.hpp
-@@ -1020,6 +1020,7 @@ public:
-   int  nof_implementors() const;
-   void add_implementor(Klass* k);  // k is a new class that implements this interface
-   void init_implementor();           // initialize
-+  void init_implementor_from_redefine();           // initialize
- 
-   // link this class into the implementors list of every interface it implements
-   void process_interfaces(Thread *thread);
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index f6d2d3a40fe..aac9ba0911f 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -1416,7 +1416,7 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
-     Klass* implKlass = ik->implementor();
-     if (implKlass != NULL && implKlass != ik && implKlass->new_version() != NULL) {
-       InstanceKlass* newest_impl = InstanceKlass::cast(implKlass->newest_version());
--      ik->init_implementor();
-+      ik->init_implementor_from_redefine();
-       if (newest_impl->implements_interface(ik)) {
-         ik->add_implementor(newest_impl);
-       }
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0031-not-nullable-oop_store_not_null-method-handle-NULL-i.patch

@@ -1,73 +0,0 @@
-From a95c3daf0a1db23e2dcc977f427faa7be41007c9 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Mon, 13 Apr 2020 20:59:35 +0200
-Subject: [PATCH 31/48] not nullable oop_store_not_null() method+handle NULL in
- mem_name in dmh
-
----
- .../share/prims/jvmtiEnhancedRedefineClasses.cpp | 16 ++++++++++------
- 1 file changed, 10 insertions(+), 6 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index aac9ba0911f..8d861ef43c9 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -225,13 +225,15 @@ void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
- // TODO comment
- struct StoreBarrier {
-   // TODO: j10 review change ::oop_store -> HeapAccess<>::oop_store
--  template <class T> static void oop_store(T* p, oop v) { HeapAccess<>::oop_store(p, v); }
-+  template <class T> static void oop_store_not_null(T* p, oop v) { HeapAccess<IS_NOT_NULL>::oop_store(p, v); }
-+  template <class T> static void oop_store(T* p) { HeapAccess<>::oop_store(p, oop(NULL)); }
- };
- 
- 
- // TODO comment
- struct StoreNoBarrier {
--  template <class T> static void oop_store(T* p, oop v) { RawAccess<IS_NOT_NULL>::oop_store(p, v); }
-+  template <class T> static void oop_store_not_null(T* p, oop v) { RawAccess<IS_NOT_NULL>::oop_store(p, v); }
-+  template <class T> static void oop_store(T* p) { RawAccess<>::oop_store(p, oop(NULL)); }
- };
- 
- /**
-@@ -309,6 +311,9 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-   bool update_direct_method_handle(oop obj) {
-     // Always update member name first.
-     oop mem_name = java_lang_invoke_DirectMethodHandle::member(obj);
-+    if (mem_name == NULL) {
-+      return true;
-+    }
-     if (!update_member_name(mem_name)) {
-       return false;
-     }
-@@ -347,7 +352,7 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-         assert(obj == InstanceKlass::cast(klass)->java_mirror(), "just checking");
-         if (klass->new_version() != NULL) {
-           obj = InstanceKlass::cast(klass->new_version())->java_mirror();
--          S::oop_store(p, obj);
-+          S::oop_store_not_null(p, obj);
-           oop_updated = true;
-         }
-       }
-@@ -363,7 +368,7 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-       if (!update_direct_method_handle(obj)) {
-         // DMH is no longer valid, replace it with null reference.
-         // See note above. We probably want to replace this with something more meaningful.
--        S::oop_store(p, NULL);
-+        S::oop_store(p);
-       }
-     }
-   }
-@@ -1430,8 +1435,7 @@ void VM_EnhancedRedefineClasses::ClearCpoolCacheAndUnpatch::do_klass(Klass* k) {
-         // Constant pool entry points to redefined class -- update to the new version
-         other_cp->klass_at_put(i, klass->newest_version());
-       }
--      klass = other_cp->resolved_klass_at(i);
--      assert(klass->new_version() == NULL, "Must be new klass!");
-+      assert(other_cp->resolved_klass_at(i)->new_version() == NULL, "Must be new klass!");
-     }
-   }
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0033-migrate-DCEVM-to-11.0.7.patch

@@ -1,25 +0,0 @@
-From dab6a53de4c25aae95667c78b8e1f1097ab47130 Mon Sep 17 00:00:00 2001
-From: Artem Khvastunov <artem.khvastunov@jetbrains.com>
-Date: Sun, 19 Apr 2020 11:36:12 +0200
-Subject: [PATCH 33/48] migrate DCEVM to 11.0.7
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 2d114635ee5..6cabdca9c27 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -30,7 +30,7 @@
- #include "memory/resourceArea.hpp"
- #include "oops/objArrayKlass.hpp"
- #include "oops/objArrayOop.hpp"
--#include "runtime/vm_operations.hpp"
-+#include "runtime/vmOperations.hpp"
- #include "gc/shared/vmGCOperations.hpp"
- #include "../../../java.base/unix/native/include/jni_md.h"
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0034-Fix-11.0.7-compilation-issues.patch

@@ -1,33 +0,0 @@
-From 70d53ce28f9df75d9e50819d2b6654855da0d533 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Fri, 8 May 2020 21:07:50 +0200
-Subject: [PATCH 34/48] Fix 11.0.7 compilation issues
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 6cabdca9c27..ed44f0e27ce 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -16,6 +16,8 @@
-  * 2 along with this work; if not, write to the Free Software Foundation,
-  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-  *
-+ *
-+ *
-  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-  * or visit www.oracle.com if you need additional information or have any
-  * questions.
-@@ -30,7 +32,6 @@
- #include "memory/resourceArea.hpp"
- #include "oops/objArrayKlass.hpp"
- #include "oops/objArrayOop.hpp"
--#include "runtime/vmOperations.hpp"
- #include "gc/shared/vmGCOperations.hpp"
- #include "../../../java.base/unix/native/include/jni_md.h"
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0035-Use-INCLUDE_CDS-condition-on-UseSharedSpaces-block-f.patch

@@ -1,33 +0,0 @@
-From 805b588bc4bd45e61b81c90e23b71337072e9549 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sat, 9 May 2020 10:08:17 +0200
-Subject: [PATCH 35/48] Use INCLUDE_CDS condition on "UseSharedSpaces" block
- from master
-
----
- 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 8d861ef43c9..660bf3a2e97 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -467,6 +467,7 @@ public:
- void VM_EnhancedRedefineClasses::doit() {
-   Thread *thread = Thread::current();
- 
-+#if INCLUDE_CDS
-   if (UseSharedSpaces) {
-     // Sharing is enabled so we remap the shared readonly space to
-     // shared readwrite, private just in case we need to redefine
-@@ -478,6 +479,7 @@ void VM_EnhancedRedefineClasses::doit() {
-       return;
-     }
-   }
-+#endif
- 
-   // Mark methods seen on stack and everywhere else so old methods are not
-   // cleaned up if they're on the stack.
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0036-Access-com.sun.beans.util-HotswapAgent-patch.patch

@@ -1,141 +0,0 @@
-From 78619004206d224b319d68493672bee2c97f0946 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sat, 16 May 2020 15:11:40 +0200
-Subject: [PATCH 36/48] Access com.sun.beans.util - HotswapAgent patch
-
----
- src/hotspot/share/runtime/arguments.cpp       |  2 ++
- .../sun/beans/introspect/package-info.java    | 26 +++++++++++++++++++
- .../classes/com/sun/beans/package-info.java   | 26 +++++++++++++++++++
- .../com/sun/beans/util/package-info.java      | 26 +++++++++++++++++++
- .../share/classes/module-info.java            |  3 +++
- 5 files changed, 83 insertions(+)
- create mode 100644 src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java
- create mode 100644 src/java.desktop/share/classes/com/sun/beans/package-info.java
- create mode 100644 src/java.desktop/share/classes/com/sun/beans/util/package-info.java
-
-diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
-index 0cdd8c88315..72580b384dd 100644
---- a/src/hotspot/share/runtime/arguments.cpp
-+++ b/src/hotspot/share/runtime/arguments.cpp
-@@ -4333,5 +4333,7 @@ void Arguments::setup_hotswap_agent() {
-   create_numbered_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++);
-+  // com.sun.beans.introspect.util.Cache access
-+  create_numbered_property("jdk.module.addopens", "java.desktop/com.sun.beans.util=ALL-UNNAMED", addopens_count++);
- 
- }
-diff --git a/src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java b/src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java
-new file mode 100644
-index 00000000000..6636e4dd62a
---- /dev/null
-+++ b/src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java
-@@ -0,0 +1,26 @@
-+/*
-+ * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
-+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-+ *
-+ * This code is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 only, as
-+ * published by the Free Software Foundation.  Oracle designates this
-+ * particular file as subject to the "Classpath" exception as provided
-+ * by Oracle in the LICENSE file that accompanied this code.
-+ *
-+ * This code is distributed in the hope that it will be useful, but WITHOUT
-+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-+ * version 2 for more details (a copy is included in the LICENSE file that
-+ * accompanied this code).
-+ *
-+ * You should have received a copy of the GNU General Public License version
-+ * 2 along with this work; if not, write to the Free Software Foundation,
-+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-+ *
-+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-+ * or visit www.oracle.com if you need additional information or have any
-+ * questions.
-+ */
-+
-+package com.sun.beans.introspect;
-diff --git a/src/java.desktop/share/classes/com/sun/beans/package-info.java b/src/java.desktop/share/classes/com/sun/beans/package-info.java
-new file mode 100644
-index 00000000000..5c097eeaa53
---- /dev/null
-+++ b/src/java.desktop/share/classes/com/sun/beans/package-info.java
-@@ -0,0 +1,26 @@
-+/*
-+ * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
-+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-+ *
-+ * This code is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 only, as
-+ * published by the Free Software Foundation.  Oracle designates this
-+ * particular file as subject to the "Classpath" exception as provided
-+ * by Oracle in the LICENSE file that accompanied this code.
-+ *
-+ * This code is distributed in the hope that it will be useful, but WITHOUT
-+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-+ * version 2 for more details (a copy is included in the LICENSE file that
-+ * accompanied this code).
-+ *
-+ * You should have received a copy of the GNU General Public License version
-+ * 2 along with this work; if not, write to the Free Software Foundation,
-+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-+ *
-+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-+ * or visit www.oracle.com if you need additional information or have any
-+ * questions.
-+ */
-+
-+package com.sun.beans;
-diff --git a/src/java.desktop/share/classes/com/sun/beans/util/package-info.java b/src/java.desktop/share/classes/com/sun/beans/util/package-info.java
-new file mode 100644
-index 00000000000..2d5d735ffa8
---- /dev/null
-+++ b/src/java.desktop/share/classes/com/sun/beans/util/package-info.java
-@@ -0,0 +1,26 @@
-+/*
-+ * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
-+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-+ *
-+ * This code is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 only, as
-+ * published by the Free Software Foundation.  Oracle designates this
-+ * particular file as subject to the "Classpath" exception as provided
-+ * by Oracle in the LICENSE file that accompanied this code.
-+ *
-+ * This code is distributed in the hope that it will be useful, but WITHOUT
-+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-+ * version 2 for more details (a copy is included in the LICENSE file that
-+ * accompanied this code).
-+ *
-+ * You should have received a copy of the GNU General Public License version
-+ * 2 along with this work; if not, write to the Free Software Foundation,
-+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-+ *
-+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-+ * or visit www.oracle.com if you need additional information or have any
-+ * questions.
-+ */
-+
-+package com.sun.beans.util;
-diff --git a/src/java.desktop/share/classes/module-info.java b/src/java.desktop/share/classes/module-info.java
-index f9cf021311f..e61ba7572cf 100644
---- a/src/java.desktop/share/classes/module-info.java
-+++ b/src/java.desktop/share/classes/module-info.java
-@@ -104,6 +104,9 @@ module java.desktop {
-     exports javax.swing.text.rtf;
-     exports javax.swing.tree;
-     exports javax.swing.undo;
-+    exports com.sun.beans;
-+    exports com.sun.beans.introspect;
-+    exports com.sun.beans.util;
- 
-     // qualified exports may be inserted at build time
-     // see make/GensrcModuleInfo.gmk
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0037-Skip-verifier-only-in-AllowEnhancedClassRedefinition.patch

@@ -1,29 +0,0 @@
-From baf26456579eb0e560471d3bcb150005492f69f4 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sun, 17 May 2020 12:19:18 +0200
-Subject: [PATCH 37/48] Skip verifier only in AllowEnhancedClassRedefinition
-
----
- src/hotspot/share/oops/instanceKlass.cpp | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index c04bdf5abfc..e14aaee21c4 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -788,10 +788,10 @@ bool InstanceKlass::link_class_impl(bool throw_verifyerror, TRAPS) {
- 
-     if (!is_linked()) {
-       if (!is_rewritten()) {
--        // In cases, if class A is being redefined and class B->A (B is extended from A) and B is host class of anonymous class C
-+        // (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 (!newest_version()->is_redefining()) {
-+        if (!AllowEnhancedClassRedefinition || !newest_version()->is_redefining()) {
-           bool verify_ok = verify_code(throw_verifyerror, THREAD);
-           if (!verify_ok) {
-             return false;
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0038-Use-original-code-for-adjust_method_entries-in-stand.patch

@@ -1,98 +0,0 @@
-From 46dc38a58ac8afafab4e04ee47a1ed2b9e65c1e1 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sun, 17 May 2020 18:18:52 +0200
-Subject: [PATCH 38/48] Use original code for adjust_method_entries in standard
- redefinition
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    |  2 +-
- .../share/prims/resolvedMethodTable.cpp       | 46 ++++++++++++++++++-
- .../share/prims/resolvedMethodTable.hpp       |  1 +
- 3 files changed, 47 insertions(+), 2 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 660bf3a2e97..0ca675e8ee6 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -506,7 +506,7 @@ void VM_EnhancedRedefineClasses::doit() {
-   // JSR-292 support
-   if (_any_class_has_resolved_methods) {
-     bool trace_name_printed = false;
--    ResolvedMethodTable::adjust_method_entries(&trace_name_printed);
-+    ResolvedMethodTable::adjust_method_entries_dcevm(&trace_name_printed);
-   }
- 
-   ChangePointersOopClosure<StoreNoBarrier> oopClosureNoBarrier;
-diff --git a/src/hotspot/share/prims/resolvedMethodTable.cpp b/src/hotspot/share/prims/resolvedMethodTable.cpp
-index a9057893368..af2ec48c2e1 100644
---- a/src/hotspot/share/prims/resolvedMethodTable.cpp
-+++ b/src/hotspot/share/prims/resolvedMethodTable.cpp
-@@ -197,8 +197,52 @@ void ResolvedMethodTable::print() {
- #endif // PRODUCT
- 
- #if INCLUDE_JVMTI
--// 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");
-+  // For each entry in RMT, change to new method
-+  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()) {
-+
-+        Method* new_method;
-+        if (old_method->is_deleted()) {
-+          new_method = Universe::throw_no_such_method_error();
-+        } else {
-+          InstanceKlass* holder = old_method->method_holder();
-+          new_method = holder->method_with_idnum(old_method->orig_method_idnum());
-+          assert(holder == new_method->method_holder(), "call after swapping redefined guts");
-+          assert(new_method != NULL, "method_with_idnum() should not be NULL");
-+          assert(old_method != new_method, "sanity check");
-+        }
-+
-+        java_lang_invoke_ResolvedMethodName::set_vmtarget(mem_name, new_method);
-+
-+        ResourceMark rm;
-+        if (!(*trace_name_printed)) {
-+          log_info(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)",
-+           new_method->name()->as_C_string(), new_method->signature()->as_C_string());
-+      }
-+    }
-+  }
-+}
-+
-+// (DCEVM) 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>();
-diff --git a/src/hotspot/share/prims/resolvedMethodTable.hpp b/src/hotspot/share/prims/resolvedMethodTable.hpp
-index 841ae4ae585..543d4ffa485 100644
---- a/src/hotspot/share/prims/resolvedMethodTable.hpp
-+++ b/src/hotspot/share/prims/resolvedMethodTable.hpp
-@@ -93,6 +93,7 @@ public:
- #if INCLUDE_JVMTI
-   // It is called at safepoint only for RedefineClasses
-   static void adjust_method_entries(bool * trace_name_printed);
-+  static void adjust_method_entries_dcevm(bool * trace_name_printed);
- #endif // INCLUDE_JVMTI
- 
-   // Cleanup cleared entries
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0039-Revert-code-for-AllowEnhancedClassRedefinition.patch

@@ -1,54 +0,0 @@
-From 6ac099d1b07fcc0d3c17ebd5d3335bcb6ceaedc9 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Tue, 19 May 2020 09:41:36 +0200
-Subject: [PATCH 39/48] Revert code for !AllowEnhancedClassRedefinition
-
----
- .../share/classfile/classLoaderData.cpp       | 23 ++++++++++---------
- 1 file changed, 12 insertions(+), 11 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
-index 25103fff2c0..f5b877b432b 100644
---- a/src/hotspot/share/classfile/classLoaderData.cpp
-+++ b/src/hotspot/share/classfile/classLoaderData.cpp
-@@ -1387,12 +1387,13 @@ bool ClassLoaderDataGraph::do_unloading(bool clean_previous_versions) {
-   // Klassesoto delete.
- 
-   // FIXME: dcevm - block asserts in MetadataOnStackMark
--  /*
--  bool walk_all_metadata = clean_previous_versions &&
--                           JvmtiExport::has_redefined_a_class() &&
--                           InstanceKlass::has_previous_versions_and_reset();
--  MetadataOnStackMark md_on_stack(walk_all_metadata);
--  */
-+  bool walk_all_metadata = false;
-+  if (!AllowEnhancedClassRedefinition) {
-+    walk_all_metadata = clean_previous_versions &&
-+                             JvmtiExport::has_redefined_a_class() &&
-+                             InstanceKlass::has_previous_versions_and_reset();
-+    MetadataOnStackMark md_on_stack(walk_all_metadata);
-+  }
- 
-   // Save previous _unloading pointer for CMS which may add to unloading list before
-   // purging and we don't want to rewalk the previously unloaded class loader data.
-@@ -1402,12 +1403,12 @@ bool ClassLoaderDataGraph::do_unloading(bool clean_previous_versions) {
-   while (data != NULL) {
-     if (data->is_alive()) {
-       // clean metaspace
--      /*
--      if (walk_all_metadata) {
--        data->classes_do(InstanceKlass::purge_previous_versions);
-+      if (!AllowEnhancedClassRedefinition) {
-+        if (walk_all_metadata) {
-+          data->classes_do(InstanceKlass::purge_previous_versions);
-+        }
-+        data->free_deallocate_list();
-       }
--      data->free_deallocate_list();
--      */
-       prev = data;
-       data = data->next();
-       loaders_processed++;
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0040-Code-cleanup.patch

@@ -1,278 +0,0 @@
-From de04154ee21d33c1ac1b74b2740f2fda117c0430 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Tue, 19 May 2020 09:29:39 +0200
-Subject: [PATCH 40/48] Code cleanup
-
----
- src/hotspot/share/classfile/classFileParser.cpp   |  4 +++-
- src/hotspot/share/classfile/classFileParser.hpp   |  2 +-
- src/hotspot/share/classfile/classLoaderData.cpp   |  2 ++
- src/hotspot/share/classfile/dictionary.cpp        |  4 ++++
- src/hotspot/share/classfile/dictionary.hpp        |  1 +
- src/hotspot/share/classfile/loaderConstraints.cpp |  3 ++-
- src/hotspot/share/classfile/systemDictionary.cpp  |  8 +++++---
- src/hotspot/share/interpreter/linkResolver.cpp    |  1 +
- src/hotspot/share/memory/universe.cpp             |  4 ++--
- src/hotspot/share/oops/instanceKlass.cpp          | 13 ++++++++-----
- 10 files changed, 29 insertions(+), 13 deletions(-)
-
-diff --git a/src/hotspot/share/classfile/classFileParser.cpp b/src/hotspot/share/classfile/classFileParser.cpp
-index ea150df9104..c2cd35da4e6 100644
---- a/src/hotspot/share/classfile/classFileParser.cpp
-+++ b/src/hotspot/share/classfile/classFileParser.cpp
-@@ -954,6 +954,7 @@ void ClassFileParser::parse_interfaces(const ClassFileStream* const stream,
-                                                   CHECK);
-       }
- 
-+      // (DCEVM) pick newest
-       interf = (Klass *) maybe_newest(interf);
- 
-       if (!interf->is_interface()) {
-@@ -3749,6 +3750,7 @@ const InstanceKlass* ClassFileParser::parse_super_class(ConstantPool* const cp,
-     // However, make sure it is not an array type.
-     bool is_array = false;
-     if (cp->tag_at(super_class_index).is_klass()) {
-+      // (DCEVM) pick newest
-       super_klass = InstanceKlass::cast(maybe_newest(cp->resolved_klass_at(super_class_index)));
-       if (need_verify)
-         is_array = super_klass->is_array_klass();
-@@ -4417,7 +4419,7 @@ void ClassFileParser::set_precomputed_flags(InstanceKlass* ik) {
-   if (!_has_empty_finalizer) {
-     if (_has_finalizer ||
-         (super != NULL && super->has_finalizer())) {
--        // FIXME - condition from previous DCEVM version, however after reload new finelize() method is not active
-+        // FIXME - (DCEVM) this is condition from previous DCEVM version, however after reload a new finalize() method is not active
-         if (ik->old_version() == NULL || ik->old_version()->has_finalizer()) {
-           ik->set_has_finalizer();
-         }
-diff --git a/src/hotspot/share/classfile/classFileParser.hpp b/src/hotspot/share/classfile/classFileParser.hpp
-index 3db14b678f3..93ed54d8f70 100644
---- a/src/hotspot/share/classfile/classFileParser.hpp
-+++ b/src/hotspot/share/classfile/classFileParser.hpp
-@@ -499,7 +499,7 @@ class ClassFileParser {
-                      FieldLayoutInfo* info,
-                      TRAPS);
- 
--  // Enhanced class redefinition
-+  // (DCEVM) Enhanced class redefinition
-   inline const Klass* maybe_newest(const Klass* klass) const { return klass != NULL && _pick_newest ? klass->newest_version() : klass; }
- 
-  public:
-diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
-index f5b877b432b..ab2615da0ed 100644
---- a/src/hotspot/share/classfile/classLoaderData.cpp
-+++ b/src/hotspot/share/classfile/classLoaderData.cpp
-@@ -1242,6 +1242,7 @@ void ClassLoaderDataGraph::dictionary_classes_do(void f(InstanceKlass*)) {
-   }
- }
- 
-+// (DCEVM) - iterate over dict classes
- void ClassLoaderDataGraph::dictionary_classes_do(KlassClosure* klass_closure) {
-   FOR_ALL_DICTIONARY(cld) {
-     cld->dictionary()->classes_do(klass_closure);
-@@ -1257,6 +1258,7 @@ void ClassLoaderDataGraph::dictionary_classes_do(void f(InstanceKlass*, TRAPS),
-   }
- }
- 
-+// (DCEVM) rollback redefined classes
- void ClassLoaderDataGraph::rollback_redefinition() {
-   FOR_ALL_DICTIONARY(cld) {
-     cld->dictionary()->rollback_redefinition();
-diff --git a/src/hotspot/share/classfile/dictionary.cpp b/src/hotspot/share/classfile/dictionary.cpp
-index 118730f1b83..dda5188c370 100644
---- a/src/hotspot/share/classfile/dictionary.cpp
-+++ b/src/hotspot/share/classfile/dictionary.cpp
-@@ -245,6 +245,8 @@ void Dictionary::classes_do(void f(InstanceKlass*)) {
-   }
- }
- 
-+
-+// (DCEVM) iterate over dict entry
- void Dictionary::classes_do(KlassClosure* closure) {
-   for (int index = 0; index < table_size(); index++) {
-     for (DictionaryEntry* probe = bucket(index);
-@@ -342,6 +344,7 @@ DictionaryEntry* Dictionary::get_entry(int index, unsigned int hash,
-   return NULL;
- }
- 
-+// (DCEVM) replace old_class by new class in dictionary
- bool Dictionary::update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass) {
-   // There are several entries for the same class in the dictionary: One extra entry for each parent classloader of the classloader of the class.
-   bool found = false;
-@@ -356,6 +359,7 @@ bool Dictionary::update_klass(unsigned int hash, Symbol* name, ClassLoaderData*
-   return found;
- }
- 
-+// (DCEVM) rollback redefinition
- void Dictionary::rollback_redefinition() {
-   for (int index = 0; index < table_size(); index++) {
-     for (DictionaryEntry* entry = bucket(index);
-diff --git a/src/hotspot/share/classfile/dictionary.hpp b/src/hotspot/share/classfile/dictionary.hpp
-index fd4b134d7a7..5eaa741d500 100644
---- a/src/hotspot/share/classfile/dictionary.hpp
-+++ b/src/hotspot/share/classfile/dictionary.hpp
-@@ -119,6 +119,7 @@ public:
- 
-   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/loaderConstraints.cpp b/src/hotspot/share/classfile/loaderConstraints.cpp
-index e4a23e8a27c..bca73b5e0dc 100644
---- a/src/hotspot/share/classfile/loaderConstraints.cpp
-+++ b/src/hotspot/share/classfile/loaderConstraints.cpp
-@@ -4,7 +4,7 @@
-  *
-  * This code is free software; you can redistribute it and/or modify it
-  * under the terms of the GNU General Public License version 2 only, as
-- * published by the Free Software Foundation.
-+ * published by the Free Software Foundation) replace old_class by new class in dictionary.
-  *
-  * This code is distributed in the hope that it will be useful, but WITHOUT
-  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-@@ -87,6 +87,7 @@ LoaderConstraintEntry** LoaderConstraintTable::find_loader_constraint(
-   return pp;
- }
- 
-+// (DCEVM) update constraint entries to new classes, called from dcevm redefinition code only
- void LoaderConstraintTable::update_after_redefinition() {
-   for (int index = 0; index < table_size(); index++) {
-     LoaderConstraintEntry** p = bucket_addr(index);
-diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
-index 9dbd6cc9c12..e70865109dd 100644
---- a/src/hotspot/share/classfile/systemDictionary.cpp
-+++ b/src/hotspot/share/classfile/systemDictionary.cpp
-@@ -876,7 +876,8 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name,
-     ClassLoaderData* loader_data = k->class_loader_data();
-     MutexLocker mu(SystemDictionary_lock, THREAD);
-     Klass* kk = find_class(name, loader_data);
--    // FIXME: (kk == k() && !k->is_redefining()) || (k->is_redefining() && kk == k->old_version())
-+    // FIXME: (DCEVM)
-+    // assert(kk == k() && !k->is_redefining()) || (k->is_redefining() && kk == k->old_version())
-     assert(kk == k, "should be present in dictionary");
-   }
- #endif
-@@ -1083,7 +1084,7 @@ InstanceKlass* SystemDictionary::resolve_from_stream(Symbol* class_name,
-  InstanceKlass* k = NULL;
- 
- #if INCLUDE_CDS
--  // FIXME: what to do during redefinition?
-+  // FIXME: (DCEVM) what to do during redefinition?
-   if (!DumpSharedSpaces) {
-     k = SystemDictionaryShared::lookup_from_stream(class_name,
-                                                    class_loader,
-@@ -1836,7 +1837,7 @@ void SystemDictionary::add_to_hierarchy(InstanceKlass* k, TRAPS) {
-   CodeCache::flush_dependents_on(k);
- }
- 
--// Enhanced class redefinition
-+// (DCEVM) - remove from klass hierarchy
- void SystemDictionary::remove_from_hierarchy(InstanceKlass* k) {
-     assert(k != NULL, "just checking");
- 
-@@ -1844,6 +1845,7 @@ void SystemDictionary::remove_from_hierarchy(InstanceKlass* k) {
-   k->remove_from_sibling_list();
- }
- 
-+// (DCEVM) 
- void SystemDictionary::update_constraints_after_redefinition() {
-   constraints()->update_after_redefinition();
- }
-diff --git a/src/hotspot/share/interpreter/linkResolver.cpp b/src/hotspot/share/interpreter/linkResolver.cpp
-index cb76d2ef50c..9dc184d02f5 100644
---- a/src/hotspot/share/interpreter/linkResolver.cpp
-+++ b/src/hotspot/share/interpreter/linkResolver.cpp
-@@ -1384,6 +1384,7 @@ void LinkResolver::runtime_resolve_virtual_method(CallInfo& result,
-       assert(resolved_method->can_be_statically_bound(), "cannot override this method");
-       selected_method = resolved_method;
-     } else {
-+      // TODO: (DCEVM) explain
-       assert(recv_klass->is_subtype_of(resolved_method->method_holder()), "receiver and resolved method holder are inconsistent");
-       selected_method = methodHandle(THREAD, recv_klass->method_at_vtable(vtable_index));
-     }
-diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
-index 7ecb950b231..d0a6d665aa0 100644
---- a/src/hotspot/share/memory/universe.cpp
-+++ b/src/hotspot/share/memory/universe.cpp
-@@ -176,7 +176,7 @@ void Universe::basic_type_classes_do(void f(Klass*)) {
-   f(doubleArrayKlassObj());
- }
- 
--// FIXME: This method should iterate all pointers that are not within heap objects.
-+// 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 {
-@@ -203,7 +203,7 @@ void Universe::root_oops_do(OopClosure *oopClosure) {
-   CodeBlobToOopClosure blobClosure(oopClosure, CodeBlobToOopClosure::FixRelocations);
-   CodeCache::blobs_do(&blobClosure);
-   StringTable::oops_do(oopClosure);
--  
-+
-   // (DCEVM) TODO: Check if this is correct?
-   //CodeCache::scavenge_root_nmethods_oops_do(oopClosure);
-   //Management::oops_do(oopClosure);
-diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
-index e14aaee21c4..c860371d2fc 100644
---- a/src/hotspot/share/oops/instanceKlass.cpp
-+++ b/src/hotspot/share/oops/instanceKlass.cpp
-@@ -1139,6 +1139,7 @@ void InstanceKlass::init_implementor() {
-   }
- }
- 
-+// (DCEVM) - init_implementor() for dcevm
- void InstanceKlass::init_implementor_from_redefine() {
-   assert(is_interface(), "not interface");
-   Klass** addr = adr_implementor();
-@@ -1209,6 +1210,8 @@ bool InstanceKlass::implements_interface(Klass* k) const {
-   return false;
- }
- 
-+
-+// (DCEVM)
- bool InstanceKlass::implements_interface_any_version(Klass* k) const {
-   k = k->newest_version();
-   if (this->newest_version() == k) return true;
-@@ -1491,10 +1494,8 @@ void InstanceKlass::methods_do(void f(Method* method)) {
-   }
- }
- 
--/**
--  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.
--*/
-+//  (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) {
-   int *arr = NEW_C_HEAP_ARRAY(int, values.length(), mtClass);
-   for (int i = 0; i < values.length(); i++) {
-@@ -2162,6 +2163,7 @@ void InstanceKlass::add_dependent_nmethod(nmethod* nm) {
-   dependencies().add_dependent_nmethod(nm);
- }
- 
-+// DCEVM - update jmethod ids
- bool InstanceKlass::update_jmethod_id(Method* method, jmethodID newMethodID) {
-   size_t idnum = (size_t)method->method_idnum();
-   jmethodID* jmeths = methods_jmethod_ids_acquire();
-@@ -2177,7 +2179,7 @@ bool InstanceKlass::update_jmethod_id(Method* method, jmethodID newMethodID) {
- 
- void InstanceKlass::remove_dependent_nmethod(nmethod* nm, bool delete_immediately) {
-   dependencies().remove_dependent_nmethod(nm, delete_immediately);
--  // (DCEVM) Hack as dependencies get wrong version of Klass*
-+  // FIXME: (DCEVM) Hack as dependencies get wrong version of Klass*
- //  if (this->old_version() != NULL) {
- //    InstanceKlass::cast(this->old_version())->remove_dependent_nmethod(nm, true);
- //    return;
-@@ -3594,6 +3596,7 @@ 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");
-   }
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0041-Activate-cpCache-definition-asserts-for-dcevm.patch

@@ -1,36 +0,0 @@
-From ab8888737eaed76776b41b28af93a0c47826b8d6 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Tue, 19 May 2020 10:31:15 +0200
-Subject: [PATCH 41/48] Activate cpCache definition asserts for !dcevm
-
----
- src/hotspot/share/oops/cpCache.cpp | 6 ++----
- 1 file changed, 2 insertions(+), 4 deletions(-)
-
-diff --git a/src/hotspot/share/oops/cpCache.cpp b/src/hotspot/share/oops/cpCache.cpp
-index 47040d51f0c..4318df227d1 100644
---- a/src/hotspot/share/oops/cpCache.cpp
-+++ b/src/hotspot/share/oops/cpCache.cpp
-@@ -436,8 +436,7 @@ void ConstantPoolCacheEntry::set_method_handle_common(const constantPoolHandle&
-   if (has_appendix) {
-     const int appendix_index = f2_as_index() + _indy_resolved_references_appendix_offset;
-     assert(appendix_index >= 0 && appendix_index < resolved_references->length(), "oob");
--    // FIXME (DCEVM) relaxing for now...
--    //assert(resolved_references->obj_at(appendix_index) == NULL, "init just once");
-+    assert(AllowEnhancedClassRedefinition || resolved_references->obj_at(appendix_index) == NULL, "init just once");
-     resolved_references->obj_at_put(appendix_index, appendix());
-   }
- 
-@@ -445,8 +444,7 @@ void ConstantPoolCacheEntry::set_method_handle_common(const constantPoolHandle&
-   if (has_method_type) {
-     const int method_type_index = f2_as_index() + _indy_resolved_references_method_type_offset;
-     assert(method_type_index >= 0 && method_type_index < resolved_references->length(), "oob");
--    // FIXME (DCEVM) relaxing for now...
--    //assert(resolved_references->obj_at(method_type_index) == NULL, "init just once");
-+    assert(AllowEnhancedClassRedefinition || resolved_references->obj_at(method_type_index) == NULL, "init just once");
-     resolved_references->obj_at_put(method_type_index, method_type());
-   }
- 
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0042-iterate-old-method-version-only-in-dcevm.patch

@@ -1,29 +0,0 @@
-From 8596cf8b677eadcd18b527dd61c891475758bbaa Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Tue, 19 May 2020 10:54:38 +0200
-Subject: [PATCH 42/48] iterate old method version only in dcevm
-
----
- src/hotspot/share/prims/jvmtiImpl.cpp | 6 ++++--
- 1 file changed, 4 insertions(+), 2 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiImpl.cpp b/src/hotspot/share/prims/jvmtiImpl.cpp
-index 2a92ece916e..d2044541d38 100644
---- a/src/hotspot/share/prims/jvmtiImpl.cpp
-+++ b/src/hotspot/share/prims/jvmtiImpl.cpp
-@@ -294,8 +294,10 @@ void JvmtiBreakpoint::each_method_version_do(method_action meth_act) {
-   Symbol* m_signature = _method->signature();
- 
-   // (DCEVM) Go through old versions of method
--  for (Method* m = _method->old_version(); m != NULL; m = m->old_version()) {
--    (m->*meth_act)(_bci);
-+  if (AllowEnhancedClassRedefinition) {
-+    for (Method* m = _method->old_version(); m != NULL; m = m->old_version()) {
-+      (m->*meth_act)(_bci);
-+    }
-   }
- 
-   // search previous versions if they exist
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0044-Skip-GC-runs-for-redefinitions-without-instance-size.patch

@@ -1,34 +0,0 @@
-From b8a3d4249eb97613f796edc709e414900c9a0828 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Fri, 22 May 2020 21:43:22 +0200
-Subject: [PATCH 44/48] Skip GC runs for redefinitions without instance size
- change
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 08fe42d5c28..a785a43d352 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -578,14 +578,14 @@ void VM_EnhancedRedefineClasses::doit() {
-     }
-   }
- 
--//  if (objectClosure.needs_instance_update()) {
-+  if (objectClosure.needs_instance_update()) {
-     // Do a full garbage collection to update the instance sizes accordingly
-     Universe::set_redefining_gc_run(true);
-     notify_gc_begin(true);
-     Universe::heap()->collect_as_vm_thread(GCCause::_heap_inspection);
-     notify_gc_end();
-     Universe::set_redefining_gc_run(false);
--//  }
-+  }
- 
-   // Unmark Klass*s as "redefining"
-   for (int i = 0; i < _new_classes->length(); i++) {
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0046-Fix-comments-according-hotspot-formatting-convention.patch

@@ -1,421 +0,0 @@
-From d3371d7d52bd4dc66efd4f6a946d5045b8bc8b2b Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sat, 23 May 2020 10:17:56 +0200
-Subject: [PATCH 46/48] Fix comments according hotspot formatting conventions
-
----
- .../prims/jvmtiEnhancedRedefineClasses.cpp    | 191 +++++++-----------
- .../prims/jvmtiEnhancedRedefineClasses.hpp    |  41 ++--
- 2 files changed, 90 insertions(+), 142 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 2321483dcbd..8d00203fd9a 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -67,21 +67,19 @@ int         VM_EnhancedRedefineClasses::_deleted_methods_length  = 0;
- int         VM_EnhancedRedefineClasses::_added_methods_length    = 0;
- Klass*      VM_EnhancedRedefineClasses::_the_class_oop = NULL;
- 
--/**
-- * Create new instance of enhanced class redefiner.
-- *
-- * This class implements VM_GC_Operation - the usual usage should be:
-- *     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
-- *     VMThread::execute(&op);
-- * Which
-- *
-- * @param class_count size of class_defs
-- * @param class_defs class definition - either new class or redefined class
-- *               note that this is not the final array of classes to be redefined
-- *               we need to scan for all affected classes (e.g. subclasses) and
-- *               caculcate redefinition for them as well.
-- * @param class_load_kind always jvmti_class_load_kind_redefine
-- */
-+//
-+// Create new instance of enhanced class redefiner.
-+//
-+// This class implements VM_GC_Operation - the usual usage should be:
-+//     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
-+//     VMThread::execute(&op);
-+// Which
-+//  - class_count size of class_defs
-+//  - class_defs class definition - either new class or redefined class
-+//               note that this is not the final array of classes to be redefined
-+//               we need to scan for all affected classes (e.g. subclasses) and
-+//               caculcate redefinition for them as well.
-+// @param class_load_kind always jvmti_class_load_kind_redefine
- VM_EnhancedRedefineClasses::VM_EnhancedRedefineClasses(jint class_count, const jvmtiClassDefinition *class_defs, JvmtiClassLoadKind class_load_kind) :
-         VM_GC_Operation(Universe::heap()->total_collections(), GCCause::_heap_inspection, Universe::heap()->total_full_collections(), true) {
-   _affected_klasses = NULL;
-@@ -97,12 +95,10 @@ static inline InstanceKlass* get_ik(jclass def) {
-   return InstanceKlass::cast(java_lang_Class::as_Klass(mirror));
- }
- 
--/**
-- * Start the redefinition:
-- * - Load new class definitions - @see load_new_class_versions
-- * - Start mark&sweep GC.
-- * @return true if success, otherwise all chnages are rollbacked.
-- */
-+// Start the redefinition:
-+// - Load new class definitions - @see load_new_class_versions
-+// - Start mark&sweep GC.
-+// - true if success, otherwise all chnages are rollbacked.
- bool VM_EnhancedRedefineClasses::doit_prologue() {
- 
-   if (_class_count == 0) {
-@@ -175,9 +171,7 @@ bool VM_EnhancedRedefineClasses::doit_prologue() {
-   return true;
- }
- 
--/**
-- * Closer for static fields - copy value from old class to the new class.
-- */
-+// Closer for static fields - copy value from old class to the new class.
- class FieldCopier : public FieldClosure {
-   public:
-   void do_field(fieldDescriptor* fd) {
-@@ -236,9 +230,7 @@ struct StoreNoBarrier {
-   template <class T> static void oop_store(T* p) { RawAccess<>::oop_store(p, oop(NULL)); }
- };
- 
--/**
--  Closure to scan all heap objects and update method handles
--*/
-+// Closure to scan all heap objects and update method handles
- template <class S>
- class ChangePointersOopClosure : public BasicOopIterateClosure {
-   // import java_lang_invoke_MemberName.*
-@@ -247,7 +239,6 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-     REFERENCE_KIND_MASK  = java_lang_invoke_MemberName::MN_REFERENCE_KIND_MASK,
-   };
- 
--
-   bool update_member_name(oop obj) {
-     int flags    =       java_lang_invoke_MemberName::flags(obj);
-     int ref_kind =       (flags >> REFERENCE_KIND_SHIFT) & REFERENCE_KIND_MASK;
-@@ -382,14 +373,12 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-   }
- };
- 
--/**
-- * Closure to scan all objects on heap for objects of changed classes
-- *   - if the fields are compatible, only update class definition reference
-- *   - otherwise if the new object size is smaller then old size, reshufle
-- *          the fields and fill the gap with "dead_space"
-- *   - otherwise set the _needs_instance_update flag, we need to do full GC
-- *          and reshuffle object positions durring mark&sweep
-- */
-+// Closure to scan all objects on heap for objects of changed classes
-+//  - if the fields are compatible, only update class definition reference
-+//  - otherwise if the new object size is smaller then old size, reshufle
-+//         the fields and fill the gap with "dead_space"
-+//  - otherwise set the _needs_instance_update flag, we need to do full GC
-+//         and reshuffle object positions durring mark&sweep
- class ChangePointersObjectClosure : public ObjectClosure {
-   private:
- 
-@@ -451,19 +440,16 @@ public:
- };
- 
- 
--/**
--  Main transformation method - runs in VM thread.
--
--  - UseSharedSpaces - TODO what does it mean?
--  - for each sratch class call redefine_single_class
--  - clear code cache (flush_dependent_code)
--  - iterate the heap and update object defintions, check it old/new class fields
--       are compatible. If new class size is smaller then old, it can be solved directly here.
--  - iterate the heap and update method handles to new version
--  - Swap marks to have same hashcodes
--  - copy static fields
--  - notify JVM of the modification
--*/
-+// Main transformation method - runs in VM thread.
-+//  - UseSharedSpaces - TODO what does it mean?
-+//  - for each sratch class call redefine_single_class
-+//  - clear code cache (flush_dependent_code)
-+//  - iterate the heap and update object defintions, check it old/new class fields
-+//       are compatible. If new class size is smaller then old, it can be solved directly here.
-+//  - iterate the heap and update method handles to new version
-+//  - Swap marks to have same hashcodes
-+//  - copy static fields
-+//  - notify JVM of the modification
- void VM_EnhancedRedefineClasses::doit() {
-   Thread *thread = Thread::current();
- 
-@@ -634,11 +620,9 @@ void VM_EnhancedRedefineClasses::doit() {
- 
- }
- 
--/**
-- * Cleanup - runs in JVM thread
-- *  - free used memory
-- *  - end GC
-- */
-+// Cleanup - runs in JVM thread
-+//  - free used memory
-+//  - end GC
- void VM_EnhancedRedefineClasses::doit_epilogue() {
-   VM_GC_Operation::doit_epilogue();
- 
-@@ -670,11 +654,9 @@ void VM_EnhancedRedefineClasses::doit_epilogue() {
-   }
- }
- 
--/**
-- * Exclude java primitives and arrays from redefinition
-- * @param klass_mirror  pointer to the klass
-- * @return true if is modifiable
-- */
-+// Exclude java primitives and arrays from redefinition
-+//  - klass_mirror  pointer to the klass
-+//  - true if is modifiable
- bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
-   // classes for primitives cannot be redefined
-   if (java_lang_Class::is_primitive(klass_mirror)) {
-@@ -693,17 +675,12 @@ bool VM_EnhancedRedefineClasses::is_modifiable_class(oop klass_mirror) {
-   return true;
- }
- 
--/**
--  Load and link new classes (either redefined or affected by redefinition - subclass, ...)
--
--  - find sorted affected classes
--  - resolve new class
--  - calculate redefine flags (field change, method change, supertype change, ...)
--  - calculate modified fields and mapping to old fields
--  - link new classes
--
--  The result is sotred in _affected_klasses(old definitions) and _new_classes(new definitions) arrays.
--*/
-+// Load and link new classes (either redefined or affected by redefinition - subclass, ...)
-+//  - find sorted affected classes
-+//  - resolve new class
-+//  - calculate redefine flags (field change, method change, supertype change, ...)
-+//  - calculate modified fields and mapping to old fields
-+//  - link new classes
- jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
- 
-   _affected_klasses = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<Klass*>(_class_count, true);
-@@ -898,9 +875,7 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {
-   return JVMTI_ERROR_NONE;
- }
- 
--/**
--  Calculated the difference between new and old class  (field change, method change, supertype change, ...).
--*/
-+ // 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());
-@@ -1183,14 +1158,11 @@ int VM_EnhancedRedefineClasses::calculate_redefinition_flags(InstanceKlass* new_
- }
- 
- 
--/**
--  Searches for the class bytecode of the given class and returns it as a byte array.
--
--  @param the_class definition of a class, either existing class or new_class
--  @param class_bytes - if the class is redefined, it contains new class definition, otherwise just original class bytecode.
--  @param class_byte_count - size of class_bytes
--  @param not_changed - new_class not available or same as current class
--*/
-+// Searches for the class bytecode of the given class and returns it as a byte array.
-+//  - the_class definition of a class, either existing class or new_class
-+//  - class_bytes - if the class is redefined, it contains new class definition, otherwise just original class bytecode.
-+//  - class_byte_count - size of class_bytes
-+//  - not_changed - new_class not available or same as current class
- jvmtiError VM_EnhancedRedefineClasses::find_class_bytes(InstanceKlass* the_class, const unsigned char **class_bytes, jint *class_byte_count, jboolean *not_changed) {
- 
-   *not_changed = false;
-@@ -1233,11 +1205,9 @@ jvmtiError VM_EnhancedRedefineClasses::find_class_bytes(InstanceKlass* the_class
-   return JVMTI_ERROR_NONE;
- }
- 
--/**
--  Calculate difference between non static fields of old and new class and store the info into new class:
--     instanceKlass->store_update_information
--     instanceKlass->copy_backwards
--*/
-+// Calculate difference between non static fields of old and new class and store the info into new class:
-+//     instanceKlass->store_update_information
-+//     instanceKlass->copy_backwards
- void VM_EnhancedRedefineClasses::calculate_instance_update_information(Klass* new_version) {
- 
-   class CalculateFieldUpdates : public FieldClosure {
-@@ -1348,9 +1318,7 @@ 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.
--*/
-+// 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::rollback_redefinition();
-@@ -1547,9 +1515,7 @@ void VM_EnhancedRedefineClasses::update_jmethod_ids() {
-   }
- }
- 
--/**
--  Set method as obsolete / old / deleted.
--*/
-+// Set method as obsolete / old / deleted.
- void VM_EnhancedRedefineClasses::check_methods_and_mark_as_obsolete() {
-   for (int j = 0; j < _matching_methods_length; ++j/*, ++old_index*/) {
-     Method* old_method = _matching_old_methods[j];
-@@ -1771,12 +1737,9 @@ void VM_EnhancedRedefineClasses::flush_dependent_code(InstanceKlass* k_h, TRAPS)
-   }
- }
- 
--/**
--  Compare _old_methods and _new_methods arrays and store the result into
--	_matching_old_methods, _matching_new_methods, _added_methods, _deleted_methods
--
--  Setup _old_methods and _new_methods before the call - it should be called for one class only!
--*/
-+//  Compare _old_methods and _new_methods arrays and store the result into
-+//  _matching_old_methods, _matching_new_methods, _added_methods, _deleted_methods
-+//  Setup _old_methods and _new_methods before the call - it should be called for one class only!
- void VM_EnhancedRedefineClasses::compute_added_deleted_matching_methods() {
-   Method* old_method;
-   Method* new_method;
-@@ -1900,7 +1863,6 @@ void VM_EnhancedRedefineClasses::redefine_single_class(InstanceKlass* new_class_
-   }
-   */
- 
--
-   {
-     ResourceMark rm(THREAD);
-     // increment the classRedefinedCount field in the_class and in any
-@@ -1940,9 +1902,7 @@ void VM_EnhancedRedefineClasses::check_class(InstanceKlass* ik, TRAPS) {
-   }
- }
- 
--/**
-- * Logging of all methods (old, new, changed, ...)
-- */
-+// Logging of all methods (old, new, changed, ...)
- void VM_EnhancedRedefineClasses::dump_methods() {
-   int j;
-   log_trace(redefine, class, dump)("_old_methods --");
-@@ -2002,9 +1962,7 @@ void VM_EnhancedRedefineClasses::dump_methods() {
-   }
- }
- 
--/**
--  Helper class to traverse all loaded classes and figure out if the class is affected by redefinition.
--*/
-+// Helper class to traverse all loaded classes and figure out if the class is affected by redefinition.
- class AffectedKlassClosure : public KlassClosure {
-  private:
-    GrowableArray<Klass*>* _affected_klasses;
-@@ -2052,10 +2010,8 @@ class AffectedKlassClosure : public KlassClosure {
-   }
- };
- 
--/**
--  Find all affected classes by current redefinition (either because of redefine, class hierarchy or interface change).
--  Affected classes are stored in _affected_klasses and parent classes always precedes child class.
--*/
-+// Find all affected classes by current redefinition (either because of redefine, class hierarchy or interface change).
-+// Affected classes are stored in _affected_klasses and parent classes always precedes child class.
- jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
-   for (int i = 0; i < _class_count; i++) {
-     InstanceKlass* klass_handle = get_ik(_class_defs[i].klass);
-@@ -2086,9 +2042,7 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
-   return JVMTI_ERROR_NONE;
- }
- 
--/**
--  Pairs of class dependencies (for topological sort)
--*/
-+// Pairs of class dependencies (for topological sort)
- struct KlassPair {
-   const Klass* _left;
-   const Klass* _right;
-@@ -2101,14 +2055,11 @@ static bool match_second(void* value, KlassPair elem) {
-   return elem._right == value;
- }
- 
--/**
-- For each class to be redefined parse the bytecode and figure out the superclass and all interfaces.
-- First newly introduced classes (_class_defs) are scanned and then affected classed (_affected_klasses).
-- Affected flag is cleared (clear_redefinition_flag(Klass::MarkedAsAffected))
-- For each dependency create a KlassPair instance. Finnaly, affected classes (_affected_klasses) are sorted according to pairs.
--
-- TODO - the class file is potentionally parsed multiple times - introduce a cache?
--*/
-+// For each class to be redefined parse the bytecode and figure out the superclass and all interfaces.
-+// First newly introduced classes (_class_defs) are scanned and then affected classed (_affected_klasses).
-+// Affected flag is cleared (clear_redefinition_flag(Klass::MarkedAsAffected))
-+// For each dependency create a KlassPair instance. Finnaly, affected classes (_affected_klasses) are sorted according to pairs.
-+// TODO - the class file is potentionally parsed multiple times - introduce a cache?
- jvmtiError VM_EnhancedRedefineClasses::do_topological_class_sorting(TRAPS) {
-   ResourceMark mark(THREAD);
- 
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 7e2afd49650..d8a11b51fe9 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-@@ -35,17 +35,16 @@
- #include "gc/shared/vmGCOperations.hpp"
- #include "../../../java.base/unix/native/include/jni_md.h"
- 
--/**
-- * Enhanced class redefiner.
-- *
-- * This class implements VM_GC_Operation - the usual usage should be:
-- *     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
-- *     VMThread::execute(&op);
-- * Which in turn runs:
-- *   - doit_prologue() - calculate all affected classes (add subclasses etc) and load new class versions
-- *   - doit() - main redefition, adjust existing objects on the heap, clear caches
-- *   - doit_epilogue() - cleanup
--*/
-+//
-+// Enhanced class redefiner.
-+//
-+// This class implements VM_GC_Operation - the usual usage should be:
-+//     VM_EnhancedRedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
-+//     VMThread::execute(&op);
-+// Which in turn runs:
-+//   - doit_prologue() - calculate all affected classes (add subclasses etc) and load new class versions
-+//   - doit() - main redefition, adjust existing objects on the heap, clear caches
-+//   - doit_epilogue() - cleanup
- class VM_EnhancedRedefineClasses: public VM_GC_Operation {
-  private:
-   // These static fields are needed by ClassLoaderDataGraph::classes_do()
-@@ -93,17 +92,15 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
- 
-   // These routines are roughly in call order unless otherwise noted.
- 
--  /**
--    Load and link new classes (either redefined or affected by redefinition - subclass, ...)
--
--    - find sorted affected classes
--    - resolve new class
--    - calculate redefine flags (field change, method change, supertype change, ...)
--    - calculate modified fields and mapping to old fields
--    - link new classes
--
--    The result is sotred in _affected_klasses(old definitions) and _new_classes(new definitions) arrays.
--  */
-+  // Load and link new classes (either redefined or affected by redefinition - subclass, ...)
-+  //
-+  // - find sorted affected classes
-+  // - resolve new class
-+  // - calculate redefine flags (field change, method change, supertype change, ...)
-+  // - calculate modified fields and mapping to old fields
-+  // - link new classes
-+  //
-+  // The result is sotred in _affected_klasses(old definitions) and _new_classes(new definitions) arrays.
-   jvmtiError load_new_class_versions(TRAPS);
- 
-   // Searches for all affected classes and performs a sorting such tha
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/dcevm/0047-Review-threads-cleanup.patch

@@ -1,47 +0,0 @@
-From 2ad306a4cce06cfccf95a1193daf5b968ec1fa87 Mon Sep 17 00:00:00 2001
-From: Vladimir Dvorak <lada.dvorak7@gmail.com>
-Date: Sun, 24 May 2020 12:07:09 +0200
-Subject: [PATCH 47/48] Review threads, cleanup
-
----
- src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 9 ++++-----
- 1 file changed, 4 insertions(+), 5 deletions(-)
-
-diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 8d00203fd9a..1fbba406087 100644
---- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-+++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-@@ -253,7 +253,7 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-           // Note: we might set NULL at this point, which should force AbstractMethodError at runtime
-           Thread *thread = Thread::current();
-           CallInfo info(new_method, newest, thread);
--          Handle objHandle(thread, obj);  // TODO : review thread
-+          Handle objHandle(thread, obj);
-           MethodHandles::init_method_MemberName(objHandle, info);
-         } else {
-           java_lang_invoke_MemberName::set_method(obj, NULL);
-@@ -280,7 +280,7 @@ class ChangePointersOopClosure : public BasicOopIterateClosure {
-           InstanceKlass* ik_new = InstanceKlass::cast(k->newest_version());
-           fieldDescriptor fd_new;
-           if (ik_new->find_local_field(fd.name(), fd.signature(), &fd_new)) {
--            Handle objHandle(Thread::current(), obj);  // TODO : review thread
-+            Handle objHandle(Thread::current(), obj);
-             MethodHandles::init_field_MemberName(objHandle, fd_new, MethodHandles::ref_kind_is_setter(ref_kind));
-           } else {
-             // Matching field is not found in new version, not much we can do here.
-@@ -441,10 +441,9 @@ public:
- 
- 
- // Main transformation method - runs in VM thread.
--//  - UseSharedSpaces - TODO what does it mean?
--//  - for each sratch class call redefine_single_class
-+//  - for each scratch class call redefine_single_class
- //  - clear code cache (flush_dependent_code)
--//  - iterate the heap and update object defintions, check it old/new class fields
-+//  - iterate the heap and update object definitions, check it old/new class fields
- //       are compatible. If new class size is smaller then old, it can be solved directly here.
- //  - iterate the heap and update method handles to new version
- //  - Swap marks to have same hashcodes
--- 
-2.24.3 (Apple Git-128)
-

jb/project/tools/patches/exclude_jcef_module.patch

@@ -1,33 +0,0 @@
-Index: src/java.desktop/share/classes/module-info.java
-IDEA additional info:
-Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
-<+>UTF-8
-===================================================================
---- src/java.desktop/share/classes/module-info.java	(revision 5ae6630e3ebc71beb9f9df63b1b5bc19c9405d1f)
-+++ src/java.desktop/share/classes/module-info.java	(date 1588168285537)
-@@ -109,10 +109,7 @@
-     // see make/GensrcModuleInfo.gmk
-     exports sun.awt to
-         jdk.accessibility,
--        jdk.unsupported.desktop,
--        jcef;
--
--    exports java.awt.peer to jcef;
-+        jdk.unsupported.desktop;
-
-     exports java.awt.dnd.peer to jdk.unsupported.desktop;
-     exports sun.awt.dnd to jdk.unsupported.desktop;
-Index: modules.list
-IDEA additional info:
-Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
-<+>UTF-8
-===================================================================
---- modules.list	(revision 5ae6630e3ebc71beb9f9df63b1b5bc19c9405d1f)
-+++ modules.list	(date 1588168285505)
-@@ -61,5 +61,4 @@
- jdk.unsupported,
- jdk.xml.dom,
- jdk.zipfs,
--jdk.hotspot.agent,
--jcef
-+jdk.hotspot.agent

jb/project/tools/patches/exclude_jfx_module.patch

@@ -1,21 +0,0 @@
-Index: modules.list
-IDEA additional info:
-Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
-<+>UTF-8
-===================================================================
---- modules.list	(revision ab073976c4f85f154ff1421b7ac888eee86b6595)
-+++ modules.list	(date 1588171510146)
-@@ -20,13 +20,6 @@
- java.transaction.xa,
- java.xml,
- java.xml.crypto,
--javafx.base,
--javafx.controls,
--javafx.fxml,
--javafx.graphics,
--javafx.media,
--javafx.swing,
--javafx.web,
- jdk.accessibility,
- jdk.aot,
- jdk.attach,

jb/project/tools/windows/scripts/mkbundles_x64.sh

@@ -1,10 +0,0 @@
-#!/bin/bash -x
-
-JBSDK_VERSION=$1
-JDK_BUILD_NUMBER=$2
-build_number=$3
-script_dir=jb/project/tools/windows/scripts
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jcef" || exit $?
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jfx" || exit $?
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "jfx_jcef" || exit $?
-${script_dir}/mkimages_x64.sh $JBSDK_VERSION $JDK_BUILD_NUMBER $build_number "dcevm" || exit $?

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

@@ -1,12 +1,16 @@
 #!/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
+#   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 bu built; possible values:
-#                        jcef - the bundles 1) jbr with jcef+javafx, 2) jbrsdk and 3) test will be created
-#                        jfx  - the bundle 1) jbr with javafx only will be created
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        jcef - the release bundles with jcef
+#                        jfx - the release bundles with javafx
+#                        jcef_jfx - the release bundles with jcef and javafx
+#                        dcevm - the release bundles with dcevm patches
+#                        nomod - the release bundles without any additional modules (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
@@ -16,93 +20,127 @@
 # 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:
+#   MODULAR_SDK_PATH - specifies the path to the directory where imported modules are located.
+#               By default imported modules should be located in ./modular-sdk
+#   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)
+WITH_IMPORT_MODULES="--with-import-modules=${MODULAR_SDK_PATH:=${WORK_DIR}/modular-sdk}"
+JCEF_PATH=${JCEF_PATH:=${WORK_DIR}/jcef_win_x64}
+TOOLCHAIN_VERSION=${TOOLCHAIN_VERSION:=2015}
 
 source jb/project/tools/common.sh
 
 function create_jbr {
 
-  case "$1" in
-  "${bundle_type}_lw")
-    grep -v "jdk.compiler\|jdk.hotspot.agent" modules.list > modules_tmp.list
+  JBR_BUNDLE=jbr_${bundle_type}
+
+  case "${bundle_type}" in
+  "jfx" | "jcef" | "dcevm" | "nomod" | "fd")
+    JBR_BASE_NAME=jbr_${bundle_type}-${JBSDK_VERSION}
     ;;
-  "jfx" | "jcef" | "jfx_jcef" | "dcevm")
-    cat modules.list > modules_tmp.list
+  "jfx_jcef")
+    JBR_BASE_NAME=jbr-${JBSDK_VERSION}
     ;;
   *)
-    echo "***ERR*** bundle was not specified" && exit 1
+    echo "***ERR*** bundle was not specified" && do_exit 1
     ;;
   esac
+  cat modules.list > modules_tmp.list
   rm -rf ${JBR_BUNDLE}
 
+  echo Running jlink....
   ${JSDK}/bin/jlink \
     --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
-    --add-modules $(xargs < modules_tmp.list | sed s/" "//g) --output ${JBR_BUNDLE} || exit $?
-  if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]]
+    --add-modules $(xargs < modules_tmp.list | sed s/" "//g) --output ${JBR_BUNDLE} || do_exit $?
+  if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]
   then
-    rsync -av jcef_win_x64/ ${JBR_BUNDLE}/bin --exclude="modular-sdk" || exit $?
+    rsync -av ${JCEF_PATH}/ ${JBR_BUNDLE}/bin --exclude="modular-sdk" || do_exit $?
   fi
   echo Modifying release info ...
   cat ${JSDK}/release | tr -d '\r' | grep -v 'JAVA_VERSION' | grep -v 'MODULES' >> ${JBR_BUNDLE}/release
 }
 
 JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
-WORK_DIR=$(pwd)
-
-git checkout -- modules.list src/java.desktop/share/classes/module-info.java
+WITH_DEBUG_LEVEL="--with-debug-level=release"
+RELEASE_NAME=windows-x86_64-normal-server-release
+JBSDK=${JBRSDK_BASE_NAME}-windows-x64-b${build_number}
 case "$bundle_type" in
   "jfx")
-    echo "Excluding jcef modules"
-    git apply -p0 < jb/project/tools/patches/exclude_jcef_module.patch
+    git apply -p0 < jb/project/tools/patches/add_jfx_module.patch || do_exit $?
+    do_reset_changes=1
     ;;
   "jcef")
-    echo "Excluding jfx modules"
-    git apply -p0 < jb/project/tools/patches/exclude_jfx_module.patch
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "jfx_jcef")
+    git apply -p0 < jb/project/tools/patches/add_jfx_module.patch || do_exit $?
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
     ;;
   "dcevm")
-    echo "Adding dcevm patches"
-    git am jb/project/tools/patches/dcevm/*.patch
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=1
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "nomod")
+    WITH_IMPORT_MODULES=""
+    ;;
+  "fd")
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
+    RELEASE_NAME=windows-x86_64-normal-server-fastdebug
+    JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}-fastdebug
+    JBSDK=${JBRSDK_BASE_NAME}-windows-x64-fastdebug-b${build_number}
+    ;;
+  *)
+    echo "***ERR*** bundle was not specified" && do_exit 1
     ;;
 esac
 
-PATH="/usr/local/bin:/usr/bin:${PATH}"
-./configure \
+sh ./configure \
   --disable-warnings-as-errors \
-  --disable-debug-symbols \
-  --with-target-bits=64 \
+  $WITH_DEBUG_LEVEL \
   --with-vendor-name="${VENDOR_NAME}" \
   --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
   --with-version-pre= \
   --with-version-build=${JDK_BUILD_NUMBER} \
   --with-version-opt=b${build_number} \
-  --with-import-modules=${WORK_DIR}/modular-sdk \
-  --with-toolchain-version=2015 \
+  $WITH_IMPORT_MODULES \
+  --with-toolchain-version=${TOOLCHAIN_VERSION} \
   --with-boot-jdk=${BOOT_JDK} \
   --disable-ccache \
-  --enable-cds=yes || exit 1
+  --enable-cds=yes || do_exit $?
 
-if [ "$bundle_type" == "jfx_jcef" ]; then
-  make LOG=info clean images CONF=windows-x86_64-normal-server-release test-image || exit 1
+if [ "${bundle_type}" == "jcef" ]; then
+  make LOG=info clean images test-image CONF=$RELEASE_NAME || do_exit $?
 else
-  make LOG=info clean images CONF=windows-x86_64-normal-server-release || exit 1
+  make LOG=info clean images CONF=$RELEASE_NAME || do_exit $?
 fi
 
-JSDK=build/windows-x86_64-normal-server-release/images/jdk
-if [[ "$bundle_type" == *jcef* ]]; then
-  JBSDK=${JBRSDK_BASE_NAME}-windows-x64-b${build_number}
-fi
-BASE_DIR=build/windows-x86_64-normal-server-release/images
+JSDK=build/$RELEASE_NAME/images/jdk
+BASE_DIR=build/$RELEASE_NAME/images
 JBRSDK_BUNDLE=jbrsdk
 
-rm -rf ${BASE_DIR}/${JBRSDK_BUNDLE} && rsync -a --exclude demo --exclude sample ${JSDK}/ ${JBRSDK_BUNDLE} || exit 1
-rsync -av jcef_win_x64/ ${JBRSDK_BUNDLE}/bin --exclude='modular-sdk' || _exit $?
-sed 's/JBR/JBRSDK/g' ${JSDK}/release > release
-mv release ${JBRSDK_BUNDLE}/release
+rm -rf ${BASE_DIR}/${JBRSDK_BUNDLE} && rsync -a --exclude demo --exclude sample ${JSDK}/ ${JBRSDK_BUNDLE} || do_exit $?
+if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]
+then
+  rsync -av ${JCEF_PATH}/ ${JBRSDK_BUNDLE}/bin --exclude='modular-sdk' || do_exit $?
+  sed 's/JBR/JBRSDK/g' ${JSDK}/release > release
+  mv release ${JBRSDK_BUNDLE}/release
+fi
 
-JBR_BUNDLE=jbr_${bundle_type}
-create_jbr ${bundle_type}
+create_jbr || do_exit $?
+
+do_exit 0

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

@@ -1,12 +1,16 @@
 #!/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
+#   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 bu built; possible values:
-#                        jcef - the bundles 1) jbr with jcef+javafx, 2) jbrsdk and 3) test will be created
-#                        jfx  - the bundle 1) jbr with javafx only will be created
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        jcef - the release bundles with jcef
+#                        jfx - the release bundles with javafx
+#                        jcef_jfx - the release bundles with jcef and javafx
+#                        dcevm - the release bundles with dcevm patches
+#                        nomod - the release bundles without any additional modules (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
@@ -16,58 +20,69 @@
 # 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:
+#   MODULAR_SDK_PATH - specifies the path to the directory where imported modules are located.
+#               By default imported modules should be located in ./modular-sdk
+#   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
 
+source jb/project/tools/common.sh
+
 function pack_jbr {
 
-  case "$1" in
-  "${bundle_type}_lw")
-    JBR_BASE_NAME=jbr_${bundle_type}_lw-${JBSDK_VERSION}
-    ;;
-  "jfx" | "jcef" | "dcevm")
+  JBR_BUNDLE=jbr_${bundle_type}
+
+  case "${bundle_type}" in
+  "jfx" | "jcef" | "dcevm" | "nomod" | "fd")
     JBR_BASE_NAME=jbr_${bundle_type}-${JBSDK_VERSION}
     ;;
   "jfx_jcef")
     JBR_BASE_NAME=jbr-${JBSDK_VERSION}
     ;;
   *)
-    echo "***ERR*** bundle was not specified" && exit 1
+    echo "***ERR*** bundle was not specified" && do_exit 1
     ;;
   esac
 
   JBR=$JBR_BASE_NAME-windows-x64-b$build_number
   echo Creating $JBR.tar.gz ...
-  rm -rf ${BASE_DIR}/jbr
   chmod -R ug+rwx,o+rx ${BASE_DIR}/${JBR_BUNDLE}
   cp -R ${BASE_DIR}/${JBR_BUNDLE} ${BASE_DIR}/jbr
-
-  /usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR jbr || exit 1
-  #rm -rf ${BASE_DIR}/${JBR_BUNDLE}
+  /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
+JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
+WITH_DEBUG_LEVEL="--with-debug-level=release"
+RELEASE_NAME=windows-x86_64-normal-server-release
+JBSDK=${JBRSDK_BASE_NAME}-windows-x64-b${build_number}
+case "$bundle_type" in
+  "fd")
+    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
+    RELEASE_NAME=windows-x86_64-normal-server-fastdebug
+    JBSDK=${JBRSDK_BASE_NAME}-windows-x64-fastdebug-b${build_number}
+    ;;
+esac
 
-IMAGES_DIR=build/windows-x86_64-normal-server-release/images
+IMAGES_DIR=build/$RELEASE_NAME/images
 JSDK=$IMAGES_DIR/jdk
-JBSDK=$JBRSDK_BASE_NAME-windows-x64-b$build_number
 BASE_DIR=.
 
-if [ "$bundle_type" == "jfx_jcef" ]; then
+if [ "${bundle_type}" == "jcef" ] || [ "${bundle_type}" == "fd" ]; then
   JBRSDK_BUNDLE=jbrsdk
   echo Creating $JBSDK.tar.gz ...
-  /usr/bin/tar -czf $JBSDK.tar.gz $JBRSDK_BUNDLE || exit 1
+  [ -f "$JBSDK.tar.gz" ] && rm "$JBSDK.tar.gz"
+  /usr/bin/tar -czf $JBSDK.tar.gz $JBRSDK_BUNDLE || do_exit $?
 fi
 
-JBR_BUNDLE=jbr_${bundle_type}
 pack_jbr $bundle_type
 
-if [ "$bundle_type" == "jfx_jcef" ]; then
+if [ "$bundle_type" == "jcef" ]; 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 || exit 1
+  /usr/bin/tar -czf $JBRSDK_TEST.tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
 fi

make/autoconf/version-numbers

@@ -29,11 +29,11 @@
 DEFAULT_VERSION_FEATURE=11
 DEFAULT_VERSION_INTERIM=0
 DEFAULT_VERSION_UPDATE=9
-DEFAULT_VERSION_PATCH=1
+DEFAULT_VERSION_PATCH=0
 DEFAULT_VERSION_EXTRA1=0
 DEFAULT_VERSION_EXTRA2=0
 DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2020-11-04
+DEFAULT_VERSION_DATE=2020-10-20
 DEFAULT_VERSION_CLASSFILE_MAJOR=55  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
 DEFAULT_VERSION_CLASSFILE_MINOR=0
 DEFAULT_ACCEPTABLE_BOOT_VERSIONS="10 11"

modules.list

@@ -20,13 +20,6 @@ java.sql.rowset,
 java.transaction.xa,
 java.xml,
 java.xml.crypto,
-javafx.base,
-javafx.controls,
-javafx.fxml,
-javafx.graphics,
-javafx.media,
-javafx.swing,
-javafx.web,
 jdk.accessibility,
 jdk.aot,
 jdk.attach,
@@ -61,5 +54,4 @@ jdk.security.jgss,
 jdk.unsupported,
 jdk.xml.dom,
 jdk.zipfs,
-jdk.hotspot.agent,
-jcef
+jdk.hotspot.agent

src/demo/share/java2d/RenderPerfTest/Makefile

@@ -0,0 +1,74 @@
+#
+# Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#   - Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#
+#   - Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+#   - Neither the name of Oracle nor the names of its
+#     contributors may be used to endorse or promote products derived
+#     from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+SOURCEPATH=src
+CLASSES=build
+DIST=dist
+RESOURCES=resources
+
+RENDERPERF_CLASSES = $(CLASSES)/renderperf/RenderPerfTest.class
+RENDERPERF_SOURCES = $(SOURCEPATH)/renderperf/RenderPerfTest.java
+
+RENDERPERF_RESOURCES = $(CLASSES)/renderperf/images/duke.png 
+
+all: mkdirs $(DIST)/RenderPerfTest.jar
+
+run: mkdirs $(DIST)/RenderPerfTest.jar
+	java -jar $(DIST)/RenderPerfTest.jar
+
+$(DIST)/RenderPerfTest.jar: \
+	$(RENDERPERF_CLASSES) $(RENDERPERF_RESOURCES) \
+	$(CLASSES)/renderperf.manifest
+	jar cvmf $(CLASSES)/renderperf.manifest $(DIST)/RenderPerfTest.jar -C $(CLASSES) .
+
+
+$(CLASSES)/renderperf/images/%: $(RESOURCES)/images/%
+	cp -r $< $@
+
+
+$(CLASSES)/renderperf.manifest:
+	echo "Main-Class: renderperf.RenderPerfTest" > $@
+
+$(DIST):
+	mkdir  $(DIST)
+
+$(CLASSES):
+	mkdir $(CLASSES)
+	mkdir -p $(CLASSES)/renderperf/images
+
+mkdirs: $(DIST) $(CLASSES)
+
+$(RENDERPERF_CLASSES): $(RENDERPERF_SOURCES)
+	javac -g:none -d $(CLASSES) -sourcepath $(SOURCEPATH) $<
+
+clean:
+	rm -rf $(CLASSES)
+	rm -rf $(DIST)

src/demo/share/java2d/RenderPerfTest/README

@@ -0,0 +1,34 @@
+-----------------------------------------------------------------------
+Introduction
+-----------------------------------------------------------------------
+
+RenderPerfTest is a set of on-screen rendering microbenchmarks  to
+analyze the  performance of Java2D graphical primitives rendering
+
+-----------------------------------------------------------------------
+How To Compile
+-----------------------------------------------------------------------
+
+#> cd RenderPerfTest
+
+The benchmark can be compiled by using either ant:
+
+#> ant
+
+or gnumake (assuming there's 'javac' in the path):
+
+#> gnumake
+
+The jar files will be generated into RenderPerfTest/dist directory.
+
+-----------------------------------------------------------------------
+How To Run RenderPerfTest
+-----------------------------------------------------------------------
+Run all tests
+#> ant run
+  or
+#> java -jar dist/RenderPerfTest.jar
+
+Run particular test cases
+
+#> java -jar dist/RenderPerfTest.jar testWhiteTextBubblesGray ...

src/demo/share/java2d/RenderPerfTest/build.xml

@@ -0,0 +1,94 @@
+<!--
+ Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+   - Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+   - Neither the name of Oracle nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<project name="RenderPerfTest" default="dist" basedir=".">
+    <description>
+        simple example build file
+    </description>
+  <!-- set global properties for this build -->
+  <property name="src" location="src"/>
+  <property name="build" location="build"/>
+  <property name="dist"  location="dist"/>
+  <property name="resources"  location="resources"/>
+
+  <target name="init">
+    <!-- Create the time stamp -->
+    <tstamp/>
+    <!-- Create the build directory structure used by compile -->
+    <mkdir dir="${build}"/>
+  </target>
+
+  <target name="compile" depends="init"
+        description="compile the source " >
+    <!-- Compile the java code from ${src} into ${build} -->
+    <javac includeantruntime="false" debug="off" srcdir="${src}" destdir="${build}"/>
+  </target>
+
+  <target name="run" depends="dist"
+    description="run RenderPerfTest" >
+    <java jar="${dist}/RenderPerfTest.jar"
+       fork="true"
+    >
+    </java>
+  </target>
+
+  <target name="resources" depends="init"
+        description="copy resources into build dir" >
+    <!-- Copy the resource files from ${resources} into ${build}/ -->
+    <mkdir dir="${dist}"/>
+    <mkdir dir="${dist}/renderperf"/>
+    <mkdir dir="${build}/renderperf/images"/>
+    <copy todir="${build}/renderperf/images">
+      <fileset dir="resources/renderperf/images" />
+    </copy>
+  </target>
+
+  <target name="dist" depends="compile, resources"
+        description="generate the distribution" >
+    <!-- Create the distribution directory -->
+    <mkdir dir="${dist}"/>
+
+    <!-- Put everything in ${build} into the J2DBench.jar file -->
+    <jar jarfile="${dist}/RenderPerfTest.jar" basedir="${build}">
+      <manifest>
+        <attribute name="Built-By" value="${user.name}"/>
+	<attribute name="Main-Class" value="renderperf.RenderPerfTest"/>
+      </manifest>
+    </jar>
+  </target>
+
+  <target name="clean"
+        description="clean up" >
+    <!-- Delete the ${build} and ${dist} directory trees -->
+    <delete dir="${build}"/>
+    <delete dir="${dist}"/>
+  </target>
+</project>

src/demo/share/java2d/RenderPerfTest/src/renderperf/RenderPerfTest.java

@@ -0,0 +1,739 @@
+/*
+ * Copyright (c) 2019, 2020 Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package renderperf;
+
+
+import javax.imageio.ImageIO;
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Point2D;
+import java.awt.geom.QuadCurve2D;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+
+public class RenderPerfTest {
+    private static HashSet<String> ignoredTests = new HashSet<>();
+
+    private final static int N = 1000;
+    private final static float WIDTH = 800;
+    private final static float HEIGHT = 800;
+    private final static float R = 25;
+    private final static int BW = 50;
+    private final static int BH = 50;
+    private final static int COUNT = 300;
+    private final static int DELAY = 10;
+    private final static int RESOLUTION = 5;
+    private final static int COLOR_TOLERANCE = 10;
+    private final static int MAX_MEASURE_TIME = 5000;
+
+
+    interface Configurable {
+        void configure(Graphics2D g2d);
+    }
+
+    interface Renderable {
+        void setup(Graphics2D g2d);
+        void render(Graphics2D g2d);
+        void update();
+    }
+
+    static class Particles {
+        private float[] bx;
+        private float[] by;
+        private float[] vx;
+        private float[] vy;
+        private float r;
+        private int n;
+
+        private float x0;
+        private float y0;
+        private float width;
+        private float height;
+
+        Particles(int n, float r, float x0, float y0, float width, float height) {
+            bx = new float[n];
+            by = new float[n];
+            vx = new float[n];
+            vy = new float[n];
+            this.n = n;
+            this.r = r;
+            this.x0 = x0;
+            this.y0 = y0;
+            this.width = width;
+            this.height = height;
+            for (int i = 0; i < n; i++) {
+                bx[i] = (float) (x0 + r + 0.1 + Math.random() * (width - 2 * r - 0.2 - x0));
+                by[i] = (float) (y0 + r + 0.1 + Math.random() * (height - 2 * r - 0.2 - y0));
+                vx[i] = 0.1f * (float) (Math.random() * 2 * r - r);
+                vy[i] = 0.1f * (float) (Math.random() * 2 * r - r);
+            }
+
+        }
+
+        void render(Graphics2D g2d, ParticleRenderer renderer) {
+            for (int i = 0; i < n; i++) {
+                renderer.render(g2d, i, bx, by, vx, vy);
+            }
+        }
+
+        void update() {
+            for (int i = 0; i < n; i++) {
+                bx[i] += vx[i];
+                if (bx[i] + r > width || bx[i] - r < x0) vx[i] = -vx[i];
+                by[i] += vy[i];
+                if (by[i] + r > height || by[i] - r < y0) vy[i] = -vy[i];
+            }
+
+        }
+
+    }
+
+    ParticleRenderable createPR(ParticleRenderer renderer) {
+        return new ParticleRenderable(renderer);
+    }
+
+    static class ParticleRenderable implements Renderable {
+        ParticleRenderer renderer;
+        Configurable configure;
+
+        ParticleRenderable(ParticleRenderer renderer, Configurable configure) {
+            this.renderer = renderer;
+            this.configure = configure;
+        }
+
+        ParticleRenderable(ParticleRenderer renderer) {
+            this(renderer, null);
+        }
+
+        @Override
+        public void setup(Graphics2D g2d) {
+            if (configure != null) configure.configure(g2d);
+        }
+
+        @Override
+        public void render(Graphics2D g2d) {
+            balls.render(g2d, renderer);
+        }
+
+        @Override
+        public void update() {
+            balls.update();
+        }
+
+        public ParticleRenderable configure(Configurable configure) {
+            this.configure = configure;
+            return this;
+        }
+    }
+
+    interface ParticleRenderer {
+        void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy);
+
+    }
+
+    static class FlatParticleRenderer implements ParticleRenderer {
+        Color[] colors;
+        float r;
+
+        FlatParticleRenderer(int n, float r) {
+            colors = new Color[n];
+            this.r = r;
+            for (int i = 0; i < n; i++) {
+                colors[i] = new Color((float) Math.random(),
+                        (float) Math.random(), (float) Math.random());
+            }
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            g2d.setColor(colors[id % colors.length]);
+            g2d.fillOval((int)(x[id] - r), (int)(y[id] - r), (int)(2*r), (int)(2*r));
+        }
+
+    }
+
+    static class WhiteTextParticleRenderer implements ParticleRenderer {
+        float r;
+
+        WhiteTextParticleRenderer(float r) {
+            this.r = r;
+        }
+
+        void setPaint(Graphics2D g2d, int id) {
+            g2d.setColor(Color.WHITE);
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            setPaint(g2d, id);
+            g2d.drawString("The quick brown fox jumps over the lazy dog",
+                    (int)(x[id] - r), (int)(y[id] - r));
+            g2d.drawString("The quick brown fox jumps over the lazy dog",
+                    (int)(x[id] - r), (int)y[id]);
+            g2d.drawString("The quick brown fox jumps over the lazy dog",
+                    (int)(x[id] - r), (int)(y[id] + r));
+        }
+    }
+
+    static class TextParticleRenderer extends WhiteTextParticleRenderer {
+        Color[] colors;
+
+        float r;
+
+        TextParticleRenderer(int n, float r) {
+            super(r);
+            colors = new Color[n];
+            this.r = r;
+            for (int i = 0; i < n; i++) {
+                colors[i] = new Color((float) Math.random(),
+                        (float) Math.random(), (float) Math.random());
+            }
+        }
+
+        void setPaint(Graphics2D g2d, int id) {
+            g2d.setColor(colors[id % colors.length]);
+        }
+    }
+
+    static class LargeTextParticleRenderer extends TextParticleRenderer {
+
+        LargeTextParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            setPaint(g2d, id);
+            Font font = new Font("LucidaGrande", Font.PLAIN, 32);
+            g2d.setFont(font);
+            g2d.drawString("The quick brown fox jumps over the lazy dog",
+                    (int)(x[id] - r), (int)(y[id] - r));
+            g2d.drawString("The quick brown fox jumps over the lazy dog",
+                    (int)(x[id] - r), (int)y[id]);
+            g2d.drawString("The quick brown fox jumps over the lazy dog",
+                    (int)(x[id] - r), (int)(y[id] + r));
+        }
+    }
+
+    static class FlatOvalRotParticleRenderer extends FlatParticleRenderer {
+
+
+        FlatOvalRotParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+
+        void setPaint(Graphics2D g2d, int id) {
+            g2d.setColor(colors[id % colors.length]);
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            setPaint(g2d, id);
+            if (Math.abs(vx[id] + vy[id]) > 0.001) {
+                AffineTransform t = (AffineTransform) g2d.getTransform().clone();
+                double l = vx[id] / Math.sqrt(vx[id] * vx[id] + vy[id] * vy[id]);
+                if (vy[id] < 0) {
+                    l = -l;
+                }
+                g2d.translate(x[id], y[id]);
+                g2d.rotate(Math.acos(l));
+                g2d.fillOval(-(int)r, (int)(-0.5*r), (int) (2 * r), (int)r);
+                g2d.setTransform(t);
+            } else {
+                g2d.fillOval((int)(x[id] - r), (int)(y[id] - 0.5*r),
+                        (int) (2 * r), (int) r);
+            }
+        }
+    }
+
+    static class LinGradOvalRotParticleRenderer extends FlatOvalRotParticleRenderer {
+
+
+        LinGradOvalRotParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+
+        @Override
+        void setPaint(Graphics2D g2d, int id) {
+            Point2D start = new Point2D.Double(- r,  - 0.5*r);
+            Point2D end = new Point2D.Double( 2 * r, r);
+            float[] dist = {0.0f, 1.0f};
+            Color[] cls = {colors[id %colors.length], colors[(colors.length - id) %colors.length]};
+            LinearGradientPaint p =
+                    new LinearGradientPaint(start, end, dist, cls);
+            g2d.setPaint(p);
+        }
+    }
+
+    static class FlatBoxParticleRenderer extends FlatParticleRenderer {
+
+
+        FlatBoxParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            g2d.setColor(colors[id % colors.length]);
+            g2d.fillRect((int)(x[id] - r), (int)(y[id] - r), (int)(2*r), (int)(2*r));
+
+        }
+
+    }
+
+    static class ImgParticleRenderer extends FlatParticleRenderer {
+        BufferedImage dukeImg;
+
+        ImgParticleRenderer(int n, float r) {
+            super(n, r);
+            try {
+                dukeImg = ImageIO.read(
+                        Objects.requireNonNull(
+                                RenderPerfTest.class.getClassLoader().getResourceAsStream(
+                                        "renderperf/images/duke.png")));
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            g2d.setColor(colors[id % colors.length]);
+            g2d.drawImage(dukeImg, (int)(x[id] - r), (int)(y[id] - r), (int)(2*r), (int)(2*r), null);
+        }
+
+    }
+
+    static class FlatBoxRotParticleRenderer extends FlatParticleRenderer {
+
+
+        FlatBoxRotParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            g2d.setColor(colors[id % colors.length]);
+            if (Math.abs(vx[id] + vy[id]) > 0.001) {
+                AffineTransform t = (AffineTransform) g2d.getTransform().clone();
+                double l = vx[id] / Math.sqrt(vx[id] * vx[id] + vy[id] * vy[id]);
+                if (vy[id] < 0) {
+                    l = -l;
+                }
+                g2d.translate(x[id], y[id]);
+                g2d.rotate(Math.acos(l));
+                g2d.fillRect(-(int)r, -(int)r, (int) (2 * r), (int) (2 * r));
+                g2d.setTransform(t);
+            } else {
+                g2d.fillRect((int)(x[id] - r), (int)(y[id] - r),
+                        (int) (2 * r), (int) (2 * r));
+            }
+        }
+    }
+
+    static class WiredParticleRenderer extends FlatParticleRenderer {
+
+
+        WiredParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            g2d.setColor(colors[id % colors.length]);
+            g2d.drawOval((int)(x[id] - r), (int)(y[id] - r), (int)(2*r), (int)(2*r));
+        }
+
+    }
+    static class WiredBoxParticleRenderer extends FlatParticleRenderer {
+
+        WiredBoxParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            g2d.setColor(colors[id % colors.length]);
+            g2d.drawRect((int)(x[id] - r), (int)(y[id] - r), (int)(2*r), (int)(2*r));
+        }
+
+    }
+    static class SegParticleRenderer extends FlatParticleRenderer {
+
+        SegParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            double v = Math.sqrt(vx[id]*vx[id]+vy[id]*vy[id]);
+            float nvx = (float) (vx[id]/v);
+            float nvy = (float) (vy[id]/v);
+            g2d.setColor(colors[id % colors.length]);
+            g2d.drawLine((int)(x[id] - r*nvx), (int)(y[id] - r*nvy),
+                    (int)(x[id] + 2*r*nvx), (int)(y[id] + 2*r*nvy));
+        }
+
+    }
+
+
+    static class WiredQuadParticleRenderer extends FlatParticleRenderer {
+
+        WiredQuadParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            if (id > 2 && (id % 3) == 0) {
+                g2d.setColor(colors[id % colors.length]);
+                g2d.draw(new QuadCurve2D.Float(x[id-3], y[id-3], x[id-2], y[id-2], x[id-1], y[id-1]));
+            }
+
+        }
+    }
+
+    static class FlatQuadParticleRenderer extends FlatParticleRenderer {
+
+        FlatQuadParticleRenderer(int n, float r) {
+            super(n, r);
+        }
+
+        @Override
+        public void render(Graphics2D g2d, int id, float[] x, float[] y, float[] vx, float[] vy) {
+            if (id > 2 && (id % 3) == 0) {
+                g2d.setColor(colors[id % colors.length]);
+                g2d.fill(new QuadCurve2D.Float(x[id-3], y[id-3], x[id-2], y[id-2], x[id-1], y[id-1]));
+            }
+
+        }
+    }
+
+    static class PerfMeter {
+        private String name;
+        private int frame = 0;
+
+        private JPanel panel;
+
+        private long time;
+        private double execTime = 0;
+        private Color expColor = Color.RED;
+        AtomicBoolean waiting = new AtomicBoolean(false);
+        private double fps;
+
+        PerfMeter(String name) {
+            this.name = name;
+        }
+
+        PerfMeter exec(final Renderable renderable) throws Exception {
+            final CountDownLatch latch = new CountDownLatch(COUNT);
+            final CountDownLatch latchFrame = new CountDownLatch(1);
+            final long endTime = System.currentTimeMillis() + MAX_MEASURE_TIME;
+
+            final JFrame f = new JFrame();
+            f.addWindowListener(new WindowAdapter() {
+                @Override
+                public void windowClosed(WindowEvent e) {
+                    latchFrame.countDown();
+                }
+            });
+
+            SwingUtilities.invokeAndWait(new Runnable() {
+                @Override
+                public void run() {
+
+                    panel = new JPanel()
+                    {
+                        @Override
+                        protected void paintComponent(Graphics g) {
+
+                            super.paintComponent(g);
+                            time = System.nanoTime();
+                            Graphics2D g2d = (Graphics2D) g.create();
+                            renderable.setup(g2d);
+                            renderable.render(g2d);
+                            g2d.setColor(expColor);
+                            g2d.fillRect(0, 0, BW, BH);
+                        }
+                    };
+
+                    panel.setPreferredSize(new Dimension((int)(WIDTH + BW), (int)(HEIGHT + BH)));
+                    panel.setBackground(Color.BLACK);
+                    f.add(panel);
+                    f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+                    f.pack();
+                    f.setVisible(true);
+                }
+            });
+            Robot robot = new Robot();
+
+            Timer timer = new Timer(DELAY, e -> {
+
+                if (waiting.compareAndSet(false, true)) {
+                    Color c = robot.getPixelColor(
+                            panel.getTopLevelAncestor().getX() + panel.getTopLevelAncestor().getInsets().left + BW / 2,
+                            panel.getTopLevelAncestor().getY() + panel.getTopLevelAncestor().getInsets().top + BH / 2);
+                    if (isAlmostEqual(c, Color.BLUE)) {
+                        expColor = Color.RED;
+                    } else {
+                        expColor = Color.BLUE;
+                    }
+                    renderable.update();
+                    panel.getParent().repaint();
+
+                } else {
+                    while (!isAlmostEqual(
+                            robot.getPixelColor(
+                                    panel.getTopLevelAncestor().getX() + panel.getTopLevelAncestor().getInsets().left + BW/2,
+                                    panel.getTopLevelAncestor().getY() + panel.getTopLevelAncestor().getInsets().top + BH/2),
+                            expColor))
+                    {
+                        try {
+                            Thread.sleep(RESOLUTION);
+                        } catch (InterruptedException ex) {
+                            ex.printStackTrace();
+                        }
+                    }
+                    time = System.nanoTime() - time;
+                    execTime += time;
+                    frame++;
+                    waiting.set(false);
+                }
+
+                if (System.currentTimeMillis() < endTime) {
+                    latch.countDown();
+                } else {
+                    while(latch.getCount() > 0) latch.countDown();
+                }
+            });
+            timer.start();
+            latch.await();
+            SwingUtilities.invokeAndWait(() -> {
+                timer.stop();
+                f.setVisible(false);
+                f.dispose();
+            });
+
+            latchFrame.await();
+            if (execTime != 0 && frame != 0) {
+                fps = 1e9 / (execTime / frame);
+            } else {
+                fps = 0;
+            }
+
+            return this;
+        }
+
+        private void report() {
+            System.err.println(name + " : " + String.format("%.2f FPS", fps));
+        }
+
+        private boolean isAlmostEqual(Color c1, Color c2) {
+            return Math.abs(c1.getRed() - c2.getRed()) < COLOR_TOLERANCE &&
+                    Math.abs(c1.getGreen() - c2.getGreen()) < COLOR_TOLERANCE &&
+                    Math.abs(c1.getBlue() - c2.getBlue()) < COLOR_TOLERANCE;
+
+        }
+    }
+
+    private static final Particles balls = new Particles(N, R, BW, BH, WIDTH, HEIGHT);
+    private static final ParticleRenderer flatRenderer = new FlatParticleRenderer(N, R);
+    private static final ParticleRenderer flatOvalRotRenderer = new FlatOvalRotParticleRenderer(N, R);
+    private static final ParticleRenderer flatBoxRenderer = new FlatBoxParticleRenderer(N, R);
+    private static final ParticleRenderer flatBoxRotRenderer = new FlatBoxRotParticleRenderer(N, R);
+    private static final ParticleRenderer linGradOvalRotRenderer = new LinGradOvalRotParticleRenderer(N, R);
+    private static final ParticleRenderer wiredRenderer = new WiredParticleRenderer(N, R);
+    private static final ParticleRenderer wiredBoxRenderer = new WiredBoxParticleRenderer(N, R);
+    private static final ParticleRenderer segRenderer = new SegParticleRenderer(N, R);
+    private static final ParticleRenderer flatQuadRenderer = new FlatQuadParticleRenderer(N, R);
+    private static final ParticleRenderer wiredQuadRenderer = new WiredQuadParticleRenderer(N, R);
+    private static final ParticleRenderer imgRenderer = new ImgParticleRenderer(N, R);
+    private static final ParticleRenderer textRenderer = new TextParticleRenderer(N, R);
+    private static final ParticleRenderer largeTextRenderer = new LargeTextParticleRenderer(N, R);
+    private static final ParticleRenderer whiteTextRenderer = new WhiteTextParticleRenderer(R);
+
+    private static final Configurable AA = (Graphics2D g2d) ->
+        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+            RenderingHints.VALUE_ANTIALIAS_ON);
+
+    private static final Configurable TextLCD = (Graphics2D g2d) ->
+        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
+
+    private static final Configurable TextAA = (Graphics2D g2d) ->
+        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+
+    public void testFlatBubbles() throws Exception {
+        (new PerfMeter("FlatOval")).exec(createPR(flatRenderer)).report();
+    }
+
+    public void testFlatBubblesAA() throws Exception {
+        (new PerfMeter("FlatOvalAA")).exec(createPR(flatRenderer).configure(AA)).report();
+    }
+
+    public void testFlatBoxBubbles() throws Exception {
+        (new PerfMeter("FlatBox")).exec(createPR(flatBoxRenderer)).report();
+    }
+
+    public void testFlatBoxBubblesAA() throws Exception {
+        (new PerfMeter("FlatBoxAA")).exec(createPR(flatBoxRenderer).configure(AA)).report();
+    }
+
+    public void testImgBubbles() throws Exception {
+        (new PerfMeter("Image")).exec(createPR(imgRenderer)).report();
+    }
+
+    public void testImgBubblesAA() throws Exception {
+        (new PerfMeter("ImageAA")).exec(createPR(imgRenderer).configure(AA)).report();
+    }
+
+    public void testFlatBoxRotBubbles() throws Exception {
+        (new PerfMeter("RotatedBox")).exec(createPR(flatBoxRotRenderer)).report();
+    }
+
+    public void testFlatBoxRotBubblesAA() throws Exception {
+        (new PerfMeter("RotatedBoxAA")).exec(createPR(flatBoxRotRenderer).configure(AA)).report();
+    }
+
+    public void testFlatOvalRotBubbles() throws Exception {
+        (new PerfMeter("RotatedOval")).exec(createPR(flatOvalRotRenderer)).report();
+    }
+
+    public void testFlatOvalRotBubblesAA() throws Exception {
+        (new PerfMeter("RotatedOvalAA")).exec(createPR(flatOvalRotRenderer).configure(AA)).report();
+    }
+
+    public void testLinGradOvalRotBubbles() throws Exception {
+        (new PerfMeter("LinGradRotatedOval")).exec(createPR(linGradOvalRotRenderer)).report();
+    }
+
+    public void testLinGradOvalRotBubblesAA() throws Exception {
+        (new PerfMeter("LinGradRotatedOvalAA")).exec(createPR(linGradOvalRotRenderer).configure(AA)).report();
+    }
+
+    public void testWiredBubbles() throws Exception {
+        (new PerfMeter("WiredBubbles")).exec(createPR(wiredRenderer)).report();
+    }
+
+    public void testWiredBubblesAA() throws Exception {
+        (new PerfMeter("WiredBubblesAA")).exec(createPR(wiredRenderer).configure(AA)).report();
+    }
+
+    public void testWiredBoxBubbles() throws Exception {
+        (new PerfMeter("WiredBox")).exec(createPR(wiredBoxRenderer)).report();
+    }
+
+    public void testWiredBoxBubblesAA() throws Exception {
+        (new PerfMeter("WiredBoxAA")).exec(createPR(wiredBoxRenderer).configure(AA)).report();
+    }
+
+    public void testLines() throws Exception {
+        (new PerfMeter("Lines")).exec(createPR(segRenderer)).report();
+    }
+
+    public void testLinesAA() throws Exception {
+        (new PerfMeter("LinesAA")).exec(createPR(segRenderer).configure(AA)).report();
+    }
+
+    public void testFlatQuad() throws Exception {
+        (new PerfMeter("FlatQuad")).exec(createPR(flatQuadRenderer)).report();
+    }
+
+    public void testFlatQuadAA() throws Exception {
+        (new PerfMeter("FlatQuadAA")).exec(createPR(flatQuadRenderer).configure(AA)).report();
+    }
+
+    public void testWiredQuad() throws Exception {
+        (new PerfMeter("WiredQuad")).exec(createPR(wiredQuadRenderer)).report();
+    }
+
+    public void testWiredQuadAA() throws Exception {
+        (new PerfMeter("WiredQuadAA")).exec(createPR(wiredQuadRenderer).configure(AA)).report();
+    }
+
+    public void testTextBubblesNoAA() throws Exception {
+        (new PerfMeter("TextNoAA")).exec(createPR(textRenderer)).report();
+    }
+
+    public void testTextBubblesLCD() throws Exception {
+        (new PerfMeter("TextLCD")).exec(createPR(textRenderer).configure(TextLCD)).report();
+    }
+
+    public void testTextBubblesGray() throws Exception {
+        (new PerfMeter("TextGray")).exec(createPR(textRenderer).configure(TextAA)).report();
+    }
+
+    public void testLargeTextBubblesNoAA() throws Exception {
+        (new PerfMeter("LargeTextNoAA")).exec(createPR(largeTextRenderer)).report();
+    }
+
+    public void testLargeTextBubblesLCD() throws Exception {
+        (new PerfMeter("LargeTextLCD")).exec(createPR(largeTextRenderer).configure(TextLCD)).report();
+    }
+
+    public void testLargeTextBubblesGray() throws Exception {
+        (new PerfMeter("LargeTextGray")).exec(createPR(largeTextRenderer).configure(TextAA)).report();
+    }
+    public void testWhiteTextBubblesNoAA() throws Exception {
+        (new PerfMeter("WhiteTextNoAA")).exec(createPR(whiteTextRenderer)).report();
+    }
+
+    public void testWhiteTextBubblesLCD() throws Exception {
+        (new PerfMeter("WhiteTextLCD")).exec(createPR(whiteTextRenderer).configure(TextLCD)).report();
+    }
+
+    public void testWhiteTextBubblesGray() throws Exception {
+        (new PerfMeter("WhiteTextGray")).exec(createPR(whiteTextRenderer).configure(TextAA)).report();
+    }
+
+    public static void main(String[] args)
+            throws InvocationTargetException, IllegalAccessException, NoSuchMethodException
+    {
+        RenderPerfTest test = new RenderPerfTest();
+
+        if (args.length > 0) {
+            for (String testCase : args) {
+                Method m = RenderPerfTest.class.getDeclaredMethod(testCase);
+                m.invoke(test);
+            }
+        } else {
+            Method[] methods = RenderPerfTest.class.getDeclaredMethods();
+            for (Method m : methods) {
+                if (m.getName().startsWith("test") && !ignoredTests.contains(m.getName())) {
+                    m.invoke(test);
+                }
+            }
+        }
+    }
+}

src/hotspot/share/include/jmm.h

@@ -111,7 +111,9 @@ typedef enum {
   JMM_VERBOSE_CLASS                  = 22,
   JMM_THREAD_CONTENTION_MONITORING   = 23,
   JMM_THREAD_CPU_TIME                = 24,
-  JMM_THREAD_ALLOCATED_MEMORY        = 25
+  JMM_THREAD_ALLOCATED_MEMORY        = 25,
+  JMM_COMPILATION_ENABLED            = 26,
+  JMM_COMPILATION_STOPPED_FOREVER    = 27,
 } jmmBoolAttribute;
 
 

src/hotspot/share/opto/addnode.cpp

@@ -917,7 +917,7 @@ Node *MinINode::Ideal(PhaseGVN *phase, bool can_reshape) {
 
     // Transform MIN2(x + c0, MIN2(x + c1, z)) into MIN2(x + MIN2(c0, c1), z)
     // if x == y and the additions can't overflow.
-    if (phase->eqv(x,y) && tx != NULL &&
+    if (phase->eqv(x,y) &&
         !can_overflow(tx, x_off) &&
         !can_overflow(tx, y_off)) {
       return new MinINode(phase->transform(new AddINode(x, phase->intcon(MIN2(x_off, y_off)))), r->in(2));
@@ -925,7 +925,7 @@ Node *MinINode::Ideal(PhaseGVN *phase, bool can_reshape) {
   } else {
     // Transform MIN2(x + c0, y + c1) into x + MIN2(c0, c1)
     // if x == y and the additions can't overflow.
-    if (phase->eqv(x,y) && tx != NULL &&
+    if (phase->eqv(x,y) &&
         !can_overflow(tx, x_off) &&
         !can_overflow(tx, y_off)) {
       return new AddINode(x,phase->intcon(MIN2(x_off,y_off)));

src/hotspot/share/services/management.cpp

@@ -775,6 +775,10 @@ JVM_LEAF(jboolean, jmm_GetBoolAttribute(JNIEnv *env, jmmBoolAttribute att))
     return ThreadService::is_thread_cpu_time_enabled();
   case JMM_THREAD_ALLOCATED_MEMORY:
     return ThreadService::is_thread_allocated_memory_enabled();
+  case JMM_COMPILATION_ENABLED:
+    return CompileBroker::get_compilation_activity_mode() == CompileBroker::run_compilation;
+  case JMM_COMPILATION_STOPPED_FOREVER:
+    return CompileBroker::get_compilation_activity_mode() == CompileBroker::shutdown_compilation;
   default:
     assert(0, "Unrecognized attribute");
     return false;

src/java.base/share/classes/java/nio/file/Files.java

@@ -1531,12 +1531,87 @@ public final class Files {
     }
 
     /**
-     * Tells whether or not a file is considered <em>hidden</em>. The exact
-     * definition of hidden is platform or provider dependent. On UNIX for
-     * example a file is considered to be hidden if its name begins with a
-     * period character ('.'). On Windows a file is considered hidden if it
-     * isn't a directory and the DOS {@link DosFileAttributes#isHidden hidden}
-     * attribute is set.
+     * Finds and returns the position of the first mismatched byte in the content
+     * of two files, or {@code -1L} if there is no mismatch. The position will be
+     * in the inclusive range of {@code 0L} up to the size (in bytes) of the
+     * smaller file.
+     *
+     * <p> Two files are considered to match if they satisfy one of the following
+     * conditions:
+     * <ul>
+     * <li> The two paths locate the {@linkplain #isSameFile(Path, Path) same file},
+     *      even if two {@linkplain Path#equals(Object) equal} paths locate a file
+     *      does not exist, or </li>
+     * <li> The two files are the same size, and every byte in the first file
+     *      is identical to the corresponding byte in the second file. </li>
+     * </ul>
+     *
+     * <p> Otherwise there is a mismatch between the two files and the value
+     * returned by this method is:
+     * <ul>
+     * <li> The position of the first mismatched byte, or </li>
+     * <li> The size of the smaller file (in bytes) when the files are different
+     *      sizes and every byte of the smaller file is identical to the
+     *      corresponding byte of the larger file. </li>
+     * </ul>
+     *
+     * <p> This method may not be atomic with respect to other file system
+     * operations. This method is always <i>reflexive</i> (for {@code Path f},
+     * {@code mismatch(f,f)} returns {@code -1L}). If the file system and files
+     * remain static, then this method is <i>symmetric</i> (for two {@code Paths f}
+     * and {@code g}, {@code mismatch(f,g)} will return the same value as
+     * {@code mismatch(g,f)}).
+     *
+     * @param   path
+     *          the path to the first file
+     * @param   path2
+     *          the path to the second file
+     *
+     * @return  the position of the first mismatch or {@code -1L} if no mismatch
+     *
+     * @throws  IOException
+     *          if an I/O error occurs
+     * @throws  SecurityException
+     *          In the case of the default provider, and a security manager is
+     *          installed, the {@link SecurityManager#checkRead(String) checkRead}
+     *          method is invoked to check read access to both files.
+     *
+     * @since 12
+     */
+    public static long mismatch(Path path, Path path2) throws IOException {
+        if (isSameFile(path, path2)) {
+            return -1;
+        }
+        byte[] buffer1 = new byte[BUFFER_SIZE];
+        byte[] buffer2 = new byte[BUFFER_SIZE];
+        try (InputStream in1 = Files.newInputStream(path);
+             InputStream in2 = Files.newInputStream(path2);) {
+            long totalRead = 0;
+            while (true) {
+                int nRead1 = in1.readNBytes(buffer1, 0, BUFFER_SIZE);
+                int nRead2 = in2.readNBytes(buffer2, 0, BUFFER_SIZE);
+
+                int i = Arrays.mismatch(buffer1, 0, nRead1, buffer2, 0, nRead2);
+                if (i > -1) {
+                    return totalRead + i;
+                }
+                if (nRead1 < BUFFER_SIZE) {
+                    // we've reached the end of the files, but found no mismatch
+                    return -1;
+                }
+                totalRead += nRead1;
+            }
+        }
+    }
+
+    /**
+     * Tells whether or not a file is considered <em>hidden</em>.
+     *
+     * @apiNote
+     * The exact definition of hidden is platform or provider dependent. On UNIX
+     * for example a file is considered to be hidden if its name begins with a
+     * period character ('.'). On Windows a file is considered hidden if the DOS
+     * {@link DosFileAttributes#isHidden hidden} attribute is set.
      *
      * <p> Depending on the implementation this method may require to access
      * the file system to determine if the file is considered hidden.

src/java.base/share/classes/sun/net/www/protocol/http/BasicAuthentication.java

@@ -29,11 +29,17 @@ import java.net.URL;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.PasswordAuthentication;
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.Charset;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.util.Arrays;
 import java.util.Base64;
 import java.util.Objects;
 import sun.net.www.HeaderParser;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.nio.charset.StandardCharsets.ISO_8859_1;
 
 /**
  * BasicAuthentication: Encapsulate an http server authentication using
@@ -49,37 +55,18 @@ class BasicAuthentication extends AuthenticationInfo {
 
     /** The authentication string for this host, port, and realm.  This is
         a simple BASE64 encoding of "login:password".    */
-    String auth;
+    final String auth;
 
     /**
      * Create a BasicAuthentication
      */
     public BasicAuthentication(boolean isProxy, String host, int port,
                                String realm, PasswordAuthentication pw,
-                               String authenticatorKey) {
+                               boolean isUTF8, String authenticatorKey) {
         super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION,
               AuthScheme.BASIC, host, port, realm,
               Objects.requireNonNull(authenticatorKey));
-        String plain = pw.getUserName() + ":";
-        byte[] nameBytes = null;
-        try {
-            nameBytes = plain.getBytes("ISO-8859-1");
-        } catch (java.io.UnsupportedEncodingException uee) {
-            assert false;
-        }
-
-        // get password bytes
-        char[] passwd = pw.getPassword();
-        byte[] passwdBytes = new byte[passwd.length];
-        for (int i=0; i<passwd.length; i++)
-            passwdBytes[i] = (byte)passwd[i];
-
-        // concatenate user name and password bytes and encode them
-        byte[] concat = new byte[nameBytes.length + passwdBytes.length];
-        System.arraycopy(nameBytes, 0, concat, 0, nameBytes.length);
-        System.arraycopy(passwdBytes, 0, concat, nameBytes.length,
-                         passwdBytes.length);
-        this.auth = "Basic " + Base64.getEncoder().encodeToString(concat);
+        this.auth = authValueFrom(pw, isUTF8);
         this.pw = pw;
     }
 
@@ -99,34 +86,30 @@ class BasicAuthentication extends AuthenticationInfo {
      * Create a BasicAuthentication
      */
     public BasicAuthentication(boolean isProxy, URL url, String realm,
-                               PasswordAuthentication pw,
+                               PasswordAuthentication pw, boolean isUTF8,
                                String authenticatorKey) {
         super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION,
               AuthScheme.BASIC, url, realm,
               Objects.requireNonNull(authenticatorKey));
-        String plain = pw.getUserName() + ":";
-        byte[] nameBytes = null;
-        try {
-            nameBytes = plain.getBytes("ISO-8859-1");
-        } catch (java.io.UnsupportedEncodingException uee) {
-            assert false;
-        }
-
-        // get password bytes
-        char[] passwd = pw.getPassword();
-        byte[] passwdBytes = new byte[passwd.length];
-        for (int i=0; i<passwd.length; i++)
-            passwdBytes[i] = (byte)passwd[i];
-
-        // concatenate user name and password bytes and encode them
-        byte[] concat = new byte[nameBytes.length + passwdBytes.length];
-        System.arraycopy(nameBytes, 0, concat, 0, nameBytes.length);
-        System.arraycopy(passwdBytes, 0, concat, nameBytes.length,
-                         passwdBytes.length);
-        this.auth = "Basic " + Base64.getEncoder().encodeToString(concat);
+        this.auth = authValueFrom(pw, isUTF8);
         this.pw = pw;
     }
 
+    private static String authValueFrom(PasswordAuthentication pw, boolean isUTF8) {
+        String plain = pw.getUserName() + ":";
+        char[] password = pw.getPassword();
+        CharBuffer cbuf = CharBuffer.allocate(plain.length() + password.length);
+        cbuf.put(plain).put(password).flip();
+        Charset charset = isUTF8 ? UTF_8 : ISO_8859_1;
+        ByteBuffer buf = charset.encode(cbuf);
+        ByteBuffer enc = Base64.getEncoder().encode(buf);
+        String ret = "Basic " + new String(enc.array(), enc.position(), enc.remaining(), ISO_8859_1);
+        Arrays.fill(buf.array(), (byte) 0);
+        Arrays.fill(enc.array(), (byte) 0);
+        Arrays.fill(cbuf.array(), (char) 0);
+        return ret;
+    }
+
     /**
      * Create a BasicAuthentication
      */

src/java.base/share/classes/sun/net/www/protocol/http/HttpURLConnection.java

@@ -2274,6 +2274,8 @@ public class HttpURLConnection extends java.net.HttpURLConnection {
         if (host != null && authhdr.isPresent()) {
             HeaderParser p = authhdr.headerParser();
             String realm = p.findValue("realm");
+            String charset = p.findValue("charset");
+            boolean isUTF8 = (charset != null && charset.equalsIgnoreCase("UTF-8"));
             String scheme = authhdr.scheme();
             AuthScheme authScheme = UNKNOWN;
             if ("basic".equalsIgnoreCase(scheme)) {
@@ -2319,7 +2321,7 @@ public class HttpURLConnection extends java.net.HttpURLConnection {
                                     realm, scheme, url, RequestorType.PROXY);
                     if (a != null) {
                         ret = new BasicAuthentication(true, host, port, realm, a,
-                                             getAuthenticatorKey());
+                                             isUTF8, getAuthenticatorKey());
                     }
                     break;
                 case DIGEST:
@@ -2437,6 +2439,8 @@ public class HttpURLConnection extends java.net.HttpURLConnection {
             HeaderParser p = authhdr.headerParser();
             String realm = p.findValue("realm");
             String scheme = authhdr.scheme();
+            String charset = p.findValue("charset");
+            boolean isUTF8 = (charset != null && charset.equalsIgnoreCase("UTF-8"));
             AuthScheme authScheme = UNKNOWN;
             if ("basic".equalsIgnoreCase(scheme)) {
                 authScheme = BASIC;
@@ -2488,7 +2492,7 @@ public class HttpURLConnection extends java.net.HttpURLConnection {
                             realm, scheme, url, RequestorType.SERVER);
                     if (a != null) {
                         ret = new BasicAuthentication(false, url, realm, a,
-                                    getAuthenticatorKey());
+                                    isUTF8, getAuthenticatorKey());
                     }
                     break;
                 case DIGEST:

src/java.base/share/classes/sun/nio/ch/ChannelInputStream.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2002, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -29,7 +29,7 @@ import java.io.*;
 import java.nio.*;
 import java.nio.channels.*;
 import java.nio.channels.spi.*;
-
+import java.util.Objects;
 
 /**
  * This class is defined here rather than in java.nio.channels.Channels
@@ -87,10 +87,8 @@ public class ChannelInputStream
     public synchronized int read(byte[] bs, int off, int len)
         throws IOException
     {
-        if ((off < 0) || (off > bs.length) || (len < 0) ||
-            ((off + len) > bs.length) || ((off + len) < 0)) {
-            throw new IndexOutOfBoundsException();
-        } else if (len == 0)
+        Objects.checkFromIndexSize(off, len, bs.length);
+        if (len == 0)
             return 0;
 
         ByteBuffer bb = ((this.bs == bs)
@@ -119,6 +117,26 @@ public class ChannelInputStream
         return 0;
     }
 
+    public synchronized long skip(long n) throws IOException {
+        // special case where the channel is to a file
+        if (ch instanceof SeekableByteChannel && n > 0) {
+            SeekableByteChannel sbc = (SeekableByteChannel)ch;
+            try {
+                long pos = sbc.position();
+                long size = sbc.size();
+                if (pos >= size) {
+                   return 0L;
+                }
+                n = Math.min(n, size - pos);
+                sbc.position(pos + n);
+                return sbc.position() - pos;
+            } catch (ClosedChannelException cce) {
+                throw new IOException(cce);
+            }
+        }
+        return super.skip(n);
+    }
+
     public void close() throws IOException {
         ch.close();
     }

src/java.base/windows/classes/sun/nio/fs/WindowsConstants.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -75,6 +75,7 @@ class WindowsConstants {
     public static final int IO_REPARSE_TAG_SYMLINK              = 0xA000000C;
     public static final int MAXIMUM_REPARSE_DATA_BUFFER_SIZE    = 16 * 1024;
     public static final int SYMBOLIC_LINK_FLAG_DIRECTORY        = 0x1;
+    public static final int SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE = 0x2;
 
     // volume flags
     public static final int FILE_CASE_SENSITIVE_SEARCH      = 0x00000001;
@@ -104,6 +105,7 @@ class WindowsConstants {
     public static final int ERROR_MORE_DATA             = 234;
     public static final int ERROR_DIRECTORY             = 267;
     public static final int ERROR_NOTIFY_ENUM_DIR       = 1022;
+    public static final int ERROR_PRIVILEGE_NOT_HELD    = 1314;
     public static final int ERROR_NONE_MAPPED           = 1332;
     public static final int ERROR_NOT_A_REPARSE_POINT   = 4390;
     public static final int ERROR_INVALID_REPARSE_DATA  = 4392;

src/java.base/windows/classes/sun/nio/fs/WindowsFileSystemProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -470,9 +470,6 @@ class WindowsFileSystemProvider
         } catch (WindowsException x) {
             x.rethrowAsIOException(file);
         }
-        // DOS hidden attribute not meaningful when set on directories
-        if (attrs.isDirectory())
-            return false;
         return attrs.isHidden();
     }
 

src/java.base/windows/classes/sun/nio/fs/WindowsNativeDispatcher.java

@@ -29,6 +29,8 @@ import java.security.AccessController;
 import java.security.PrivilegedAction;
 import jdk.internal.misc.Unsafe;
 
+import static sun.nio.fs.WindowsConstants.*;
+
 /**
  * Win32 and library calls.
  */
@@ -920,6 +922,12 @@ class WindowsNativeDispatcher {
      *   LPCWSTR lpTargetFileName,
      *   DWORD dwFlags
      * )
+     *
+     * Creates a symbolic link, conditionally retrying with the addition of
+     * the flag SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE if the initial
+     * attempt fails with ERROR_PRIVILEGE_NOT_HELD. If the retry fails, throw
+     * the original exception due to ERROR_PRIVILEGE_NOT_HELD. The retry will
+     * succeed only on Windows build 14972 or later if Developer Mode is on.
      */
     static void CreateSymbolicLink(String link, String target, int flags)
         throws WindowsException
@@ -929,6 +937,19 @@ class WindowsNativeDispatcher {
         try {
             CreateSymbolicLink0(linkBuffer.address(), targetBuffer.address(),
                                 flags);
+        } catch (WindowsException x) {
+            if (x.lastError() == ERROR_PRIVILEGE_NOT_HELD) {
+                flags |= SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE;
+                try {
+                    CreateSymbolicLink0(linkBuffer.address(),
+                                        targetBuffer.address(), flags);
+                    return;
+                } catch (WindowsException ignored) {
+                    // Will fail with ERROR_INVALID_PARAMETER for Windows
+                    // builds older than 14972.
+                }
+            }
+            throw x;
         } finally {
             targetBuffer.release();
             linkBuffer.release();

src/java.base/windows/native/libnio/fs/WindowsNativeDispatcher.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -1056,7 +1056,6 @@ Java_sun_nio_fs_WindowsNativeDispatcher_CreateSymbolicLink0(JNIEnv* env,
     LPCWSTR link = jlong_to_ptr(linkAddress);
     LPCWSTR target = jlong_to_ptr(targetAddress);
 
-    /* On Windows 64-bit this appears to succeed even when there is insufficient privileges */
     if (CreateSymbolicLinkW(link, target, (DWORD)flags) == 0)
         throwWindowsException(env, GetLastError());
 }

src/java.desktop/macosx/classes/com/apple/eawt/Application.java

@@ -35,6 +35,7 @@ import javax.swing.JMenuBar;
 import sun.lwawt.*;
 import sun.lwawt.macosx.*;
 import sun.awt.AWTAccessor;
+import sun.util.logging.PlatformLogger;
 
 /**
  * The <code>Application</code> class allows you to integrate your Java application with the native Mac OS X environment.
@@ -55,6 +56,8 @@ import sun.awt.AWTAccessor;
  * @since 1.4
  */
 public class Application {
+    private static final PlatformLogger focusRequestLog = PlatformLogger.getLogger("jb.focus.requests");
+
     private static native void nativeInitializeApplicationDelegate();
 
     static Application sApplication = null;
@@ -284,6 +287,9 @@ public class Application {
      * @since Java for Mac OS X 10.5 Update 6 - 1.6, 1.5
      */
     public void requestForeground(final boolean allWindows) {
+        if (focusRequestLog.isLoggable(PlatformLogger.Level.FINE)) {
+            focusRequestLog.fine("requestForeground(" + (allWindows ? "allWindows" : "") + ")", new Throwable());
+        }
         _AppMiscHandlers.requestActivation(allWindows);
     }
 

src/java.desktop/macosx/classes/sun/awt/CGraphicsEnvironment.java

@@ -280,12 +280,15 @@ public final class CGraphicsEnvironment extends SunGraphicsEnvironment {
         int numLogical = sLogicalFonts.length;
         int numOtherFonts = superFonts.length;
 
-        newFonts = new Font[numOtherFonts + numLogical];
-        System.arraycopy(superFonts,0,newFonts,numLogical,numOtherFonts);
+        newFonts = new Font[numOtherFonts + numLogical * 4];
+        System.arraycopy(superFonts, 0, newFonts, numLogical * 4, numOtherFonts);
 
         for (int i = 0; i < numLogical; i++)
         {
-            newFonts[i] = new Font(sLogicalFonts[i], Font.PLAIN, 1);
+            for (int j = 0; j < 4; j++)
+            {
+                newFonts[i * 4 + j] = new Font(sLogicalFonts[i], j, 1);
+            }
         }
         return newFonts;
     }

src/java.desktop/macosx/classes/sun/font/CCompositeGlyphMapper.java

@@ -60,7 +60,7 @@ public final class CCompositeGlyphMapper extends CompositeGlyphMapper {
                 // Native font fallback mechanism can return "hidden" fonts - their names start with dot,
                 // and they are not returned in a list of fonts available in system, but they can still be used
                 // if requested explicitly.
-                fallbackFont = new CFont(fallbackFontName, fallbackFontFamilyName);
+                fallbackFont = new CFont(fallbackFontName, fallbackFontFamilyName, null);
             }
 
             if (mainFont.isFakeItalic()) fallbackFont = ((CFont)fallbackFont).createItalicVariant(false);

src/java.desktop/macosx/classes/sun/font/CFont.java

@@ -87,6 +87,7 @@ public final class CFont extends PhysicalFont implements FontSubstitution, FontW
                                                 final int style);
     private static native void disposeNativeFont(final long nativeFontPtr);
 
+    private String faceName;
     private boolean isFakeItalic;
     private String nativeFontName;
     private long nativeFontPtr;
@@ -152,14 +153,15 @@ public final class CFont extends PhysicalFont implements FontSubstitution, FontW
 
     // this constructor is called from CFontWrapper.m
     public CFont(String name) {
-        this(name, name);
+        this(name, name, null);
     }
 
-    public CFont(String name, String inFamilyName) {
+    public CFont(String name, String inFamilyName, String faceName) {
         handle = new Font2DHandle(this);
         fullName = name;
         familyName = inFamilyName;
         nativeFontName = fullName;
+        this.faceName = faceName;
         setStyle();
     }
 
@@ -239,6 +241,11 @@ public final class CFont extends PhysicalFont implements FontSubstitution, FontW
         return nativeFontName;
     }
 
+    @Override
+    public String getTypographicSubfamilyName() {
+        return faceName == null ? super.getTypographicSubfamilyName() : faceName;
+    }
+
     // <rdar://problem/5321707> sun.font.Font2D caches the last used strike,
     // but does not check if the properties of the strike match the properties
     // of the incoming java.awt.Font object (size, style, etc).

src/java.desktop/macosx/classes/sun/font/CFontManager.java

@@ -202,13 +202,13 @@ public final class CFontManager extends SunFontManager {
     private native void loadNativeFonts();
     native String getNativeFontVersion(String psName);
 
-    void registerFont(String fontName, String fontFamilyName) {
+    void registerFont(String fontName, String fontFamilyName, String faceName) {
         // Use different family for specific font faces
         String newFontFamily = jreFamilyMap.get(fontName);
         if (newFontFamily != null) {
             fontFamilyName = newFontFamily;
         }
-        final CFont font = new CFont(fontName, fontFamilyName);
+        final CFont font = new CFont(fontName, fontFamilyName, faceName);
 
         registerGenericFont(font);
     }

src/java.desktop/macosx/classes/sun/lwawt/LWComponentPeer.java

@@ -934,7 +934,7 @@ public abstract class LWComponentPeer<T extends Component, D extends JComponent>
 
         int result = LWKeyboardFocusManagerPeer.shouldNativelyFocusHeavyweight(
                 getTarget(), lightweightChild, temporary,
-                focusedWindowChangeAllowed, time, cause);
+                focusedWindowChangeAllowed, time, cause, false);
         switch (result) {
             case LWKeyboardFocusManagerPeer.SNFH_FAILURE:
                 return false;
@@ -959,18 +959,13 @@ public abstract class LWComponentPeer<T extends Component, D extends JComponent>
                 // however that is the shared code and this particular problem's reproducibility has
                 // platform specifics. So, it was decided to narrow down the fix to lwawt (OSX) in
                 // current release. TODO: consider fixing it in the shared code.
-                if (!focusedWindowChangeAllowed) {
-                    LWWindowPeer decoratedPeer = parentPeer.isSimpleWindow() ?
-                        LWWindowPeer.getOwnerFrameDialog(parentPeer) : parentPeer;
-
-                    if (decoratedPeer == null || !decoratedPeer.getPlatformWindow().isActive()) {
-                        if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
-                            focusLog.fine("request rejected, focusedWindowChangeAllowed==false, " +
-                                          "decoratedPeer is inactive: " + decoratedPeer);
-                        }
-                        LWKeyboardFocusManagerPeer.removeLastFocusRequest(getTarget());
-                        return false;
+                if (!focusedWindowChangeAllowed && !parentPeer.getPlatformWindow().isActive()) {
+                    if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
+                        focusLog.fine("request rejected, focusedWindowChangeAllowed==false, " +
+                                "parentPeer is inactive: " + parentPeer);
                     }
+                    LWKeyboardFocusManagerPeer.removeLastFocusRequest(getTarget());
+                    return false;
                 }
 
                 return parentPeer.requestWindowFocus(cause, () -> {
@@ -980,9 +975,7 @@ public abstract class LWComponentPeer<T extends Component, D extends JComponent>
 
                     Component focusOwner = kfmPeer.getCurrentFocusOwner();
                     LWKeyboardFocusManagerPeer.deliverFocus(lightweightChild,
-                            getTarget(), temporary,
-                            focusedWindowChangeAllowed,
-                            time, cause, focusOwner);
+                            getTarget(), false, cause, focusOwner);
                 });
 
             case LWKeyboardFocusManagerPeer.SNFH_SUCCESS_HANDLED:

src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java

@@ -1283,39 +1283,9 @@ public class LWWindowPeer
         Window opposite = LWKeyboardFocusManagerPeer.getInstance().
             getCurrentFocusedWindow();
 
-        // Make the owner active window.
-        if (isSimpleWindow()) {
-            LWWindowPeer owner = getOwnerFrameDialog(this);
-
-            // If owner is not natively active, request native
-            // activation on it w/o sending events up to java.
-            if (owner != null && !owner.platformWindow.isActive()) {
-                if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
-                    focusLog.fine("requesting native focus to the owner " + owner);
-                }
-                LWWindowPeer currentActivePeer = currentActive == null ? null :
-                (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(
-                        currentActive);
-
-                // Ensure the opposite is natively active and suppress sending events.
-                if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
-                    if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
-                        focusLog.fine("the opposite is " + currentActivePeer);
-                    }
-                    currentActivePeer.skipNextFocusChange = true;
-                }
-                owner.skipNextFocusChange = true;
-
-                owner.platformWindow.requestWindowFocus();
-            }
-
-            // DKFM will synthesize all the focus/activation events correctly.
-            changeFocusedWindow(true, opposite, lightweightRequest);
-            return true;
-
         // In case the toplevel is active but not focused, change focus directly,
         // as requesting native focus on it will not have effect.
-        } else if (getTarget() == currentActive && !getTarget().isFocused()) {
+        if (getTarget() == currentActive && !getTarget().isFocused()) {
             changeFocusedWindow(true, opposite, lightweightRequest);
             return true;
         }
@@ -1402,7 +1372,8 @@ public class LWWindowPeer
         // - when the opposite (gaining focus) window is an owned/owner window.
         // - for a simple window in any case.
         if (!becomesFocused &&
-            (isGrabbing() || this.isOneOfOwnersOf(grabbingWindow)))
+            (isGrabbing() || this.isOneOfOwnersOf(grabbingWindow)) &&
+            (opposite == null || getOwnerFrameDialog(AWTAccessor.getComponentAccessor().getPeer(opposite)) != this))
         {
             if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
                 focusLog.fine("ungrabbing on " + grabbingWindow);

src/java.desktop/macosx/classes/sun/lwawt/macosx/CClipboard.java

@@ -89,7 +89,11 @@ final class CClipboard extends SunClipboard {
 
             try {
                 byte[] bytes = DataTransferer.getInstance().translateTransferable(contents, flavor, format);
-                setData(bytes, format);
+                if (DataFlavor.javaFileListFlavor.equals(flavor)) {
+                    writeObjects(bytes);
+                } else {
+                    setData(bytes, format);
+                }
             } catch (IOException e) {
                 // Fix 4696186: don't print exception if data with
                 // javaJVMLocalObjectMimeType failed to serialize.
@@ -127,6 +131,7 @@ final class CClipboard extends SunClipboard {
 
     private native void declareTypes(long[] formats, SunClipboard newOwner);
     private native void setData(byte[] data, long format);
+    private native void writeObjects(byte[] data);
 
     void checkPasteboardAndNotify() {
         if (checkPasteboardWithoutNotification()) {