JBR-4305 (#119)

* IDEA-283934 Top panel (toolbar, Editor tabs) hides under the Mac menu in full-screen mode

* IDEA-283934 Top panel (toolbar, Editor tabs) hides under the Mac menu in full-screen mode

* JBR-4305 IDEA-283934 Top panel (toolbar, Editor tabs) hides under the Mac menu in full-screen mode

* JBR-4305 IDEA-283934 Top panel (toolbar, Editor tabs) hides under the Mac menu in full-screen mode

jb/project/docker/Dockerfile.aarch64

@@ -31,6 +31,7 @@ RUN export DEBIAN_FRONTEND=noninteractive \
         libxt-dev \
         libxtst-dev \
         make \
+        rsync \
         tar \
         unzip \
         zip && \

jb/project/docker/Dockerfile.musl_aarch64

@@ -0,0 +1,22 @@
+# NOTE: This Dockerfile is meant to be used from the mkdocker_musl_aarch64.sh script.
+
+# Pull a concrete version of Linux that does NOT recieve updates after it's
+# been created.  This is so that the image is as stable as possible to make
+# image creation reproducible.
+# NB: this also means there may be no security-related fixes there, need to
+# move the version to the next manually.
+FROM arm64v8/alpine:3.12
+
+# Install the necessary build tools
+RUN     apk --no-cache add --update bash grep tar zip bzip2 rsync fontconfig build-base \
+	    git libx11-dev libxext-dev libxrandr-dev libxrender-dev libxt-dev \
+	    libxtst-dev autoconf freetype-dev cups-dev alsa-lib-dev file \
+	    fontconfig fontconfig-dev linux-headers
+
+# Set up boot JDK for building
+COPY boot_jdk_musl_aarch64.tar.gz /jdk17/
+RUN cd /jdk17 && tar --strip-components=1 -xzf boot_jdk_musl_aarch64.tar.gz && rm /jdk17/boot_jdk_musl_aarch64.tar.gz
+ENV BOOT_JDK=/jdk17
+
+RUN git config --global user.email "teamcity@jetbrains.com" && \
+    git config --global user.name "builduser"

jb/project/docker/Dockerfile.musl_x64

@@ -0,0 +1,22 @@
+# NOTE: This Dockerfile is meant to be used from the mkdocker_musl_x64.sh script.
+
+# Pull a concrete version of Linux that does NOT recieve updates after it's
+# been created.  This is so that the image is as stable as possible to make
+# image creation reproducible.
+# NB: this also means there may be no security-related fixes there, need to
+# move the version to the next manually.
+FROM alpine:3.5
+
+# Install the necessary build tools
+RUN     apk --no-cache add --update bash grep tar zip bzip2 rsync fontconfig build-base \
+	    git libx11-dev libxext-dev libxrandr-dev libxrender-dev libxt-dev \
+	    libxtst-dev autoconf freetype-dev cups-dev alsa-lib-dev file \
+	    fontconfig fontconfig-dev linux-headers
+
+# Set up boot JDK for building
+COPY boot_jdk_musl_amd64.tar.gz /jdk17/
+RUN cd /jdk17 && tar --strip-components=1 -xzf boot_jdk_musl_amd64.tar.gz && rm /jdk17/boot_jdk_musl_amd64.tar.gz
+ENV BOOT_JDK=/jdk17
+
+RUN git config --global user.email "teamcity@jetbrains.com" && \
+    git config --global user.name "builduser"

jb/project/docker/mkdocker_musl_aarch64.sh

@@ -0,0 +1,26 @@
+#!/bin/bash -x
+
+# This script creates a Docker image suitable for building musl AArch64 variant
+# of the JetBrains Runtime version 17.
+
+BOOT_JDK_REMOTE_FILE=zulu17.32.13-ca-jdk17.0.2-linux_musl_aarch64.tar.gz
+BOOT_JDK_SHA=6b920559abafbe9bdef386a20ecf3a2f318bc1f0d8359eb1f95aee26606bbc70
+BOOT_JDK_LOCAL_FILE=boot_jdk_musl_aarch64.tar.gz
+
+if [ ! -f $BOOT_JDK_LOCAL_FILE ]; then
+    # Obtain "boot JDK" from outside of the container.
+    wget -nc https://cdn.azul.com/zulu/bin/${BOOT_JDK_REMOTE_FILE} -O $BOOT_JDK_LOCAL_FILE
+else
+    echo "boot JDK \"$BOOT_JDK_LOCAL_FILE\" present, skipping download"
+fi
+
+# Verify that what we've downloaded can be trusted.
+sha256sum -c - <<EOF
+$BOOT_JDK_SHA *$BOOT_JDK_LOCAL_FILE
+EOF
+
+docker build -t jbr17buildenv -f Dockerfile.musl_aarch64 .
+
+# NB: the resulting container can (and should) be used without the network
+# connection (--network none) during build in order to reduce the chance
+# of build contamination.

jb/project/docker/mkdocker_musl_x64.sh

@@ -0,0 +1,26 @@
+#!/bin/bash -x
+
+# This script creates a Docker image suitable for building musl-x64 variant
+# of the JetBrains Runtime version 17.
+
+BOOT_JDK_REMOTE_FILE=zulu17.32.13-ca-jdk17.0.2-linux_musl_x64.tar.gz
+BOOT_JDK_SHA=bcc5342011bd9f3643372aadbdfa68d47463ff0d8621668a0bdf2910614d95c6
+BOOT_JDK_LOCAL_FILE=boot_jdk_musl_amd64.tar.gz
+
+if [ ! -f $BOOT_JDK_LOCAL_FILE ]; then
+    # Obtain "boot JDK" from outside of the container.
+    wget -nc https://cdn.azul.com/zulu/bin/${BOOT_JDK_REMOTE_FILE} -O $BOOT_JDK_LOCAL_FILE
+else
+    echo "boot JDK \"$BOOT_JDK_LOCAL_FILE\" present, skipping download"
+fi
+
+# Verify that what we've downloaded can be trusted.
+sha256sum -c - <<EOF
+$BOOT_JDK_SHA *$BOOT_JDK_LOCAL_FILE
+EOF
+
+docker build -t jbr17buildenv -f Dockerfile.musl_x64 .
+
+# NB: the resulting container can (and should) be used without the network
+# connection (--network none) during build in order to reduce the chance
+# of build contamination.

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

@@ -77,15 +77,27 @@ case "$OS_NAME" in
         ;;
 esac
 
+WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS="--with-native-debug-symbols=zipped"
+
 REPRODUCIBLE_BUILD_OPTS="--enable-reproducible-build
   --with-source-date=$SOURCE_DATE_EPOCH
   --with-hotspot-build-time=$BUILD_TIME
   --with-copyright-year=$COPYRIGHT_YEAR
   --disable-absolute-paths-in-output"
 
+function zip_native_debug_symbols() {
+  image_bundle_path=$(echo $1 | cut -d"/" -f-4)
+  jbr_diz_name=$2
+
+  (cd $image_bundle_path && find . -name '*.diz' -exec rsync -R {} ../../../../dizfiles \; )
+
+  (cd dizfiles && find . -print0 | COPYFILE_DISABLE=1 \
+    tar --no-recursion --null -T - -czf ../"$jbr_diz_name".tar.gz) || do_exit $?
+}
+
 function do_exit() {
   exit_code=$1
-  [ $do_reset_changes -eq 1 ] && git checkout HEAD modules.list src/java.desktop/share/classes/module-info.java
+  [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
   if [ $do_reset_dcevm -eq 1 ]; then
     [ ! -z $HEAD_REVISION ] && git reset --hard $HEAD_REVISION
   fi

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

@@ -6,8 +6,21 @@
 
 source jb/project/tools/common/scripts/common.sh
 
+function is_musl {
+  libc=$(ldd /bin/ls | grep 'musl' | head -1 | cut -d ' ' -f1)
+  if [ -z $libc ]; then
+    # This is not Musl, return 1 == false
+    return 1
+  fi
+  return 0
+}
+
 JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
 
+LIBC_TYPE_SUFFIX=''
+
+if is_musl; then LIBC_TYPE_SUFFIX='musl-' ; fi
+
 sh configure \
   --with-debug-level=release \
   --with-vendor-name="${VENDOR_NAME}" \
@@ -19,11 +32,12 @@ sh configure \
   --with-boot-jdk=${BOOT_JDK} \
   --enable-cds=yes \
   $REPRODUCIBLE_BUILD_OPTS \
+  $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
   || exit $?
 make clean CONF=linux-aarch64-server-release || exit $?
 make images CONF=linux-aarch64-server-release test-image || exit $?
 
-JBSDK=${JBRSDK_BASE_NAME}-linux-aarch64-b${build_number}
+JBSDK=${JBRSDK_BASE_NAME}-linux-${LIBC_TYPE_SUFFIX}aarch64-b${build_number}
 BASE_DIR=build/linux-aarch64-server-release/images
 JSDK=${BASE_DIR}/jdk
 JBRSDK_BUNDLE=jbrsdk
@@ -38,6 +52,8 @@ echo Creating $JBSDK.tar.gz ...
 sed 's/JBR/JBRSDK/g' ${BASE_DIR}/${JBRSDK_BUNDLE}/release > release
 mv release ${BASE_DIR}/${JBRSDK_BUNDLE}/release
 
+zip_native_debug_symbols $JSDK "${JBSDK}_diz"
+
 # NB: --sort=name requires tar1.28
 tar $REPRODUCIBLE_TAR_OPTS --sort=name -pcf $JBSDK.tar \
   --exclude=*.debuginfo --exclude=demo --exclude=sample --exclude=man \
@@ -49,8 +65,8 @@ JBR_BUNDLE=jbr
 JBR_BASE_NAME=jbr-$JBSDK_VERSION
 rm -rf $BASE_DIR/$JBR_BUNDLE
 
-JBR=$JBR_BASE_NAME-linux-aarch64-b$build_number
-grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.aarch64
+JBR=$JBR_BASE_NAME-linux-${LIBC_TYPE_SUFFIX}aarch64-b$build_number
+grep -v javafx jb/project/tools/common/modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.aarch64
 echo Running jlink....
 ${JSDK}/bin/jlink \
   --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
@@ -65,7 +81,7 @@ tar $REPRODUCIBLE_TAR_OPTS --sort=name -pcf $JBR.tar -C $BASE_DIR ${JBR_BUNDLE}
 touch -c -d @$SOURCE_DATE_EPOCH $JBR.tar
 gzip $JBR.tar || exit $?
 
-JBRSDK_TEST=$JBRSDK_BASE_NAME-linux-test-aarch64-b$build_number
+JBRSDK_TEST=$JBRSDK_BASE_NAME-linux-${LIBC_TYPE_SUFFIX}test-aarch64-b$build_number
 echo Creating $JBRSDK_TEST.tar.gz ...
 tar -pcf $JBRSDK_TEST.tar -C $BASE_DIR --exclude='test/jdk/demos' test || exit $?
 gzip $JBRSDK_TEST.tar || exit $?

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

@@ -33,17 +33,31 @@ function do_configure {
     --with-boot-jdk="$BOOT_JDK" \
     --enable-cds=yes \
     $REPRODUCIBLE_BUILD_OPTS \
+    $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
     || do_exit $?
 }
 
+function is_musl {
+  libc=$(ldd /bin/ls | grep 'musl' | head -1 | cut -d ' ' -f1)
+  if [ -z $libc ]; then
+    # This is not Musl, return 1 == false
+    return 1
+  fi
+  return 0
+}
+
 function create_image_bundle {
   __bundle_name=$1
   __arch_name=$2
   __modules_path=$3
   __modules=$4
 
+  libc_type_suffix=''
+
+  if is_musl; then libc_type_suffix='musl-' ; fi
+
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  JBR=${__bundle_name}-${JBSDK_VERSION}-linux-x64-${fastdebug_infix}b${build_number}
+  JBR=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x64-${fastdebug_infix}b${build_number}
 
   echo Running jlink....
   [ -d "$IMAGES_DIR"/"$__arch_name" ] && rm -rf "${IMAGES_DIR:?}"/"$__arch_name"
@@ -56,6 +70,7 @@ function create_image_bundle {
     sed 's/JBR/JBRSDK/g' "$IMAGES_DIR"/"$__arch_name"/release > release
     mv release "$IMAGES_DIR"/"$__arch_name"/release
     copy_jmods "$__modules" "$__modules_path" "$IMAGES_DIR"/"$__arch_name"/jmods
+    zip_native_debug_symbols $IMAGES_DIR/jdk "${JBR}_diz"
   fi
 
   # jmod does not preserve file permissions (JDK-8173610)
@@ -115,7 +130,7 @@ if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
 fi
 
 # create runtime image bundle
-modules=$(xargs < modules.list | sed s/" "//g) || do_exit $?
+modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
 create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?
 
 # create sdk image bundle
@@ -126,9 +141,9 @@ fi
 create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" $JBRSDK_BUNDLE $JSDK_MODS_DIR "$modules" || do_exit $?
 
 if [ $do_maketest -eq 1 ]; then
-    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-linux-test-x64-b${build_number}
+    JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-linux-${libc_type_suffix}test-x64-b${build_number}
     echo Creating "$JBRSDK_TEST" ...
-    [ $do_reset_changes -eq 1 ] && git checkout HEAD modules.list src/java.desktop/share/classes/module-info.java
+    [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
     make test-image CONF=$RELEASE_NAME || do_exit $?
     tar -pcf "$JBRSDK_TEST".tar -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
     [ -f "$JBRSDK_TEST.tar.gz" ] && rm "$JBRSDK_TEST.tar.gz"

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

@@ -61,7 +61,7 @@ JBR_BASE_NAME=jbr-$JBSDK_VERSION
 rm -rf $BASE_DIR/$JBR_BUNDLE
 
 JBR=$JBR_BASE_NAME-linux-x86-b$build_number
-grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
+grep -v javafx jb/project/tools/common/modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
 echo Running jlink....
 ${JSDK}/bin/jlink \
   --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
@@ -77,4 +77,4 @@ gzip $JBR.tar || exit $?
 JBRSDK_TEST=$JBRSDK_BASE_NAME-linux-test-x86-b$build_number
 echo Creating $JBRSDK_TEST.tar.gz ...
 tar -pcf $JBRSDK_TEST.tar -C $BASE_DIR --exclude='test/jdk/demos' --exclude='test/hotspot/gtest' test || exit $?
-gzip $JBRSDK_TEST.tar || exit $?
+gzip $JBRSDK_TEST.tar || exit $?

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

@@ -45,6 +45,7 @@ function do_configure {
       --with-extra-cxxflags="-F$(pwd)/Frameworks" \
       --with-extra-ldflags="-F$(pwd)/Frameworks" \
       $REPRODUCIBLE_BUILD_OPTS \
+      $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
       || do_exit $?
   else
     sh configure \
@@ -61,6 +62,7 @@ function do_configure {
       --with-macosx-version-max="${MACOSX_VERSION_MAX:="10.12.00"}" \
       --enable-cds=yes \
       $REPRODUCIBLE_BUILD_OPTS \
+      $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
       || do_exit $?
   fi
 }
@@ -90,6 +92,7 @@ function create_image_bundle {
     sed 's/JBR/JBRSDK/g' $JRE_CONTENTS/Home/release > release
     mv release $JRE_CONTENTS/Home/release
     copy_jmods "$__modules" "$__modules_path" "$JRE_CONTENTS"/Home/jmods
+    zip_native_debug_symbols $IMAGES_DIR/jdk-bundle/jdk-$JBSDK_VERSION.jdk "${JBR}_diz"
   fi
 
   cp -R "$JSDK"/../MacOS "$JRE_CONTENTS"
@@ -153,7 +156,7 @@ if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
 fi
 
 # create runtime image bundle
-modules=$(xargs < modules.list | sed s/" "//g) || do_exit $?
+modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
 create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?
 
 # create sdk image bundle
@@ -166,7 +169,7 @@ create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" "$JBRSDK_BUNDLE" "$JSDK_
 if [ $do_maketest -eq 1 ]; then
     JBRSDK_TEST=${JBRSDK_BUNDLE}-${JBSDK_VERSION}-osx-test-${architecture}-b${build_number}
     echo Creating "$JBRSDK_TEST" ...
-    [ $do_reset_changes -eq 1 ] && git checkout HEAD modules.list src/java.desktop/share/classes/module-info.java
+    [ $do_reset_changes -eq 1 ] && git checkout HEAD jb/project/tools/common/modules.list src/java.desktop/share/classes/module-info.java
     make test-image CONF=$RELEASE_NAME || do_exit $?
     [ -f "$JBRSDK_TEST.tar.gz" ] && rm "$JBRSDK_TEST.tar.gz"
     COPYFILE_DISABLE=1 tar -pczf "$JBRSDK_TEST".tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?

jb/project/tools/patches/add_jcef_module.patch

@@ -1,8 +1,8 @@
-diff --git modules.list modules.list
-index 054f21d1ee0..d9a121f0273 100644
---- modules.list
-+++ modules.list
-@@ -49,4 +49,7 @@ jdk.unsupported,
+diff --git jb/project/tools/common/modules.list jb/project/tools/common/modules.list
+index 522acb7cb43..c40e689d5de 100644
+--- jb/project/tools/common/modules.list
++++ jb/project/tools/common/modules.list
+@@ -51,4 +51,7 @@ jdk.unsupported.desktop,
  jdk.xml.dom,
  jdk.zipfs,
  jdk.hotspot.agent,

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

@@ -107,7 +107,8 @@ if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
 fi
 
 # create runtime image bundlef
-modules=$(xargs < modules.list | sed s/" "//g) || do_exit $?
+modules=$(xargs < jb/project/tools/common/modules.list | sed s/" "//g) || do_exit $?
+modules+=",jdk.crypto.mscapi"
 create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" || do_exit $?
 
 # create sdk image bundle

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

@@ -53,7 +53,8 @@ mv release ${JBRSDK_BUNDLE}/release
 
 JBR_BUNDLE=jbr
 rm -rf ${JBR_BUNDLE}
-grep -v javafx modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
+grep -v javafx jb/project/tools/common/modules.list | grep -v "jdk.internal.vm\|jdk.aot\|jcef" > modules.list.x86
+echo ",jdk.crypto.mscapi" >> modules.list.x86
 ${JSDK}/bin/jlink \
   --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
   --add-modules $(xargs < modules.list.x86 | sed s/" "//g) --output ${JBR_BUNDLE} || exit $?

src/hotspot/share/runtime/abstract_vm_version.cpp

@@ -117,7 +117,7 @@ const char* Abstract_VM_Version::vm_vendor() {
 #ifdef VENDOR
   return VENDOR;
 #else
-  return "Oracle Corporation";
+  return "JetBrains s.r.o.";
 #endif
 }
 

src/hotspot/share/runtime/arguments.cpp

@@ -1337,6 +1337,7 @@ bool Arguments::add_property(const char* prop, PropertyWriteable writeable, Prop
     log_info(cds)("optimized module handling: disabled due to incompatible property: %s=%s", key, value);
   }
   if (strcmp(key, "jdk.module.showModuleResolution") == 0 ||
+      strcmp(key, "jdk.module.illegalAccess") == 0 ||
       strcmp(key, "jdk.module.validation") == 0 ||
       strcmp(key, "java.system.class.loader") == 0) {
     MetaspaceShared::disable_full_module_graph();
@@ -2131,7 +2132,8 @@ bool Arguments::parse_uintx(const char* value,
 }
 
 bool Arguments::create_module_property(const char* prop_name, const char* prop_value, PropertyInternal internal) {
-  assert(is_internal_module_property(prop_name), "unknown module property: '%s'", prop_name);
+  assert(is_internal_module_property(prop_name) ||
+         strcmp(prop_name, "jdk.module.illegalAccess") == 0, "unknown module property: '%s'", prop_name);
   size_t prop_len = strlen(prop_name) + strlen(prop_value) + 2;
   char* property = AllocateHeap(prop_len, mtArguments);
   int ret = jio_snprintf(property, prop_len, "%s=%s", prop_name, prop_value);
@@ -2499,10 +2501,11 @@ jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, bool* patch_m
       if (res != JNI_OK) {
         return res;
       }
-    } else if (match_option(option, "--illegal-access=", &tail)) {
-      char version[256];
-      JDK_Version::jdk(17).to_string(version, sizeof(version));
-      warning("Ignoring option %s; support was removed in %s", option->optionString, version);
+    } else if (match_option(option, "--jbr-illegal-access", &tail)) {
+      warning("Option --jbr-illegal-access is deprecated and will be removed in a future release.");
+      if (!create_module_property("jdk.module.illegalAccess", "permit", ExternalProperty)) {
+        return JNI_ENOMEM;
+      }
     // -agentlib and -agentpath
     } else if (match_option(option, "-agentlib:", &tail) ||
           (is_absolute_path = match_option(option, "-agentpath:", &tail))) {

src/java.base/share/classes/com/jetbrains/internal/JBRApi.java

@@ -16,6 +16,8 @@
 
 package com.jetbrains.internal;
 
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
@@ -103,9 +105,10 @@ public class JBRApi {
         JBRApi.outerLookup = outerLookup;
         try {
             Class<?> metadataClass = outerLookup.findClass("com.jetbrains.JBR$Metadata");
-            knownServices = Set.of((String[]) outerLookup.findStaticVarHandle(metadataClass,
+            Lookup lookup = MethodHandles.privateLookupIn(metadataClass, outerLookup);
+            knownServices = Set.of((String[]) lookup.findStaticVarHandle(metadataClass,
                     "KNOWN_SERVICES", String[].class).get());
-            knownProxies = Set.of((String[]) outerLookup.findStaticVarHandle(metadataClass,
+            knownProxies = Set.of((String[]) lookup.findStaticVarHandle(metadataClass,
                     "KNOWN_PROXIES", String[].class).get());
         } catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException e) {
             e.printStackTrace();
@@ -156,13 +159,52 @@ public class JBRApi {
         RegisteredProxyInfo info = registeredProxyInfoByTargetName.get(targetName);
         if (info == null) return null;
         try {
-            return (info.type() == ProxyInfo.Type.CLIENT_PROXY ? info.apiModule() : outerLookup)
+            return (info.type().isPublicApi() ? outerLookup : info.apiModule())
                     .findClass(info.interfaceName());
         } catch (ClassNotFoundException | IllegalAccessException e) {
             return null;
         }
     }
 
+    public static InternalServiceBuilder internalServiceBuilder(Lookup interFace, String target) {
+        return new InternalServiceBuilder(new RegisteredProxyInfo(
+                interFace, interFace.lookupClass().getName(), target, ProxyInfo.Type.INTERNAL_SERVICE, new ArrayList<>()));
+    }
+
+    public static class InternalServiceBuilder {
+
+        private final RegisteredProxyInfo info;
+
+        private InternalServiceBuilder(RegisteredProxyInfo info) {
+            this.info = info;
+        }
+
+        public InternalServiceBuilder withStatic(String methodName, String clazz) {
+            return withStatic(methodName, clazz, methodName);
+        }
+
+        public InternalServiceBuilder withStatic(String interfaceMethodName, String clazz, String methodName) {
+            info.staticMethods().add(
+                    new RegisteredProxyInfo.StaticMethodMapping(interfaceMethodName, clazz, methodName));
+            return this;
+        }
+
+        public Object build() {
+            ProxyInfo info = ProxyInfo.resolve(this.info);
+            if (info == null) return null;
+            ProxyGenerator generator = new ProxyGenerator(info);
+            if (!generator.areAllMethodsImplemented()) return null;
+            generator.defineClasses();
+            MethodHandle constructor = generator.findConstructor();
+            generator.init();
+            try {
+                return constructor.invoke();
+            } catch (Throwable e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+
     /**
      * Called by {@linkplain com.jetbrains.bootstrap.JBRApiBootstrap#MODULES registry classes}
      * to register a new mapping for corresponding modules.

src/java.base/share/classes/com/jetbrains/internal/ProxyGenerator.java

@@ -78,7 +78,7 @@ class ProxyGenerator {
      */
     ProxyGenerator(ProxyInfo info) {
         this.info = info;
-        generateBridge = info.type != ProxyInfo.Type.CLIENT_PROXY;
+        generateBridge = info.type.isPublicApi();
         int nameId = nameCounter.getAndIncrement();
         proxyName = Type.getInternalName(info.interFace) + "$$JBRApiProxy$" + nameId;
         bridgeName = generateBridge ? info.apiModule.lookupClass().getPackageName().replace('.', '/') + "/" +
@@ -153,7 +153,7 @@ class ProxyGenerator {
             } else {
                 MethodHandle c = generatedProxy.findConstructor(generatedProxy.lookupClass(),
                         MethodType.methodType(void.class, Object.class));
-                if (info.type == ProxyInfo.Type.SERVICE) {
+                if (info.type.isService()) {
                     try {
                         return MethodHandles.foldArguments(c, info.target.findConstructor(info.target.lookupClass(),
                                 MethodType.methodType(void.class)).asType(MethodType.methodType(Object.class)));

src/java.base/share/classes/com/jetbrains/internal/ProxyInfo.java

@@ -66,7 +66,7 @@ class ProxyInfo {
     }
 
     Lookup getInterfaceLookup() {
-        return type == Type.CLIENT_PROXY ? apiModule : JBRApi.outerLookup;
+        return type == Type.CLIENT_PROXY || type == Type.INTERNAL_SERVICE ? apiModule : JBRApi.outerLookup;
     }
 
     Lookup getTargetLookup() {
@@ -74,12 +74,18 @@ class ProxyInfo {
     }
 
     private Lookup lookup(Lookup lookup, String clazz) {
-        try {
-            return MethodHandles.privateLookupIn(lookup.findClass(clazz), lookup);
-        } catch (ClassNotFoundException | IllegalAccessException e) {
-            if (lookup == JBRApi.outerLookup) return null;
-            else throw new RuntimeException(e);
+        String[] nestedClasses = clazz.split("\\$");
+        clazz = "";
+        for (int i = 0; i < nestedClasses.length; i++) {
+            try {
+                if (i != 0) clazz += "$";
+                clazz += nestedClasses[i];
+                lookup = MethodHandles.privateLookupIn(lookup.findClass(clazz), lookup);
+            } catch (ClassNotFoundException | IllegalAccessException ignore) {
+                return null;
+            }
         }
+        return lookup;
     }
 
     record StaticMethodMapping(Lookup lookup, String methodName) {}
@@ -90,6 +96,15 @@ class ProxyInfo {
     enum Type {
         PROXY,
         SERVICE,
-        CLIENT_PROXY
+        CLIENT_PROXY,
+        INTERNAL_SERVICE;
+
+        public boolean isPublicApi() {
+            return this == PROXY || this == SERVICE;
+        }
+
+        public boolean isService() {
+            return this == SERVICE || this == INTERNAL_SERVICE;
+        }
     }
 }

src/java.base/share/classes/jdk/internal/module/ExplodedSystemModules.java

@@ -68,4 +68,14 @@ class ExplodedSystemModules implements SystemModules {
     public Map<String, Set<String>> moduleReads() {
         throw new InternalError();
     }
+
+    @Override
+    public  Map<String, Set<String>> concealedPackagesToOpen() {
+        return Map.of();
+    }
+
+    @Override
+    public  Map<String, Set<String>> exportedPackagesToOpen() {
+        return Map.of();
+    }
 }

src/java.base/share/classes/jdk/internal/module/IllegalAccessMaps.java

@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package jdk.internal.module;
+
+import sun.nio.cs.UTF_8;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UncheckedIOException;
+import java.lang.module.ModuleDescriptor;
+import java.lang.module.ModuleFinder;
+import java.lang.module.ModuleReference;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Generates the maps of concealed and exported packages to open at run-time.
+ *
+ * This is used at run-time for exploded builds, and at link-time to generate
+ * the maps for the system modules in the run-time image.
+ */
+
+public class IllegalAccessMaps {
+    private final Map<String, Set<String>> concealedPackagesToOpen;
+    private final Map<String, Set<String>> exportedPackagesToOpen;
+
+    private IllegalAccessMaps(Map<String, Set<String>> map1,
+                              Map<String, Set<String>> map2) {
+        this.concealedPackagesToOpen = map1;
+        this.exportedPackagesToOpen = map2;
+    }
+
+    /**
+     * Returns the map of concealed packages to open. The map key is the
+     * module name, the value is the set of concealed packages to open.
+     */
+    public Map<String, Set<String>> concealedPackagesToOpen() {
+        return concealedPackagesToOpen;
+    }
+
+    /**
+     * Returns the map of exported packages to open. The map key is the
+     * module name, the value is the set of exported packages to open.
+     */
+    public Map<String, Set<String>> exportedPackagesToOpen() {
+        return exportedPackagesToOpen;
+    }
+
+    /**
+     * Generate the maps of module to concealed and exported packages for
+     * the system modules that are observable with the given module finder.
+     */
+    public static IllegalAccessMaps generate(ModuleFinder finder) {
+        Map<String, ModuleDescriptor> map = new HashMap<>();
+        finder.findAll().stream()
+            .map(ModuleReference::descriptor)
+            .forEach(md -> md.packages().forEach(pn -> map.putIfAbsent(pn, md)));
+
+        Map<String, Set<String>> concealedPackagesToOpen = new HashMap<>();
+        Map<String, Set<String>> exportedPackagesToOpen = new HashMap<>();
+
+        String rn = "jdk8_packages.dat";
+        InputStream in = IllegalAccessMaps.class.getResourceAsStream(rn);
+        if (in == null) {
+            throw new InternalError(rn + " not found");
+        }
+        try (BufferedReader br = new BufferedReader(
+                new InputStreamReader(in, UTF_8.INSTANCE)))
+        {
+            br.lines()
+                .filter(line -> !line.isEmpty() && !line.startsWith("#"))
+                .forEach(pn -> {
+                    ModuleDescriptor descriptor = map.get(pn);
+                    if (descriptor != null && !isOpen(descriptor, pn)) {
+                        String name = descriptor.name();
+                        if (isExported(descriptor, pn)) {
+                            exportedPackagesToOpen.computeIfAbsent(name,
+                                    k -> new HashSet<>()).add(pn);
+                        } else {
+                            concealedPackagesToOpen.computeIfAbsent(name,
+                                    k -> new HashSet<>()).add(pn);
+                        }
+                    }
+                });
+
+        } catch (IOException ioe) {
+            throw new UncheckedIOException(ioe);
+        }
+
+        return new IllegalAccessMaps(concealedPackagesToOpen, exportedPackagesToOpen);
+    }
+
+    private static boolean isExported(ModuleDescriptor descriptor, String pn) {
+        return descriptor.exports()
+                .stream()
+                .anyMatch(e -> e.source().equals(pn) && !e.isQualified());
+    }
+
+    private static boolean isOpen(ModuleDescriptor descriptor, String pn) {
+        return descriptor.opens()
+                .stream()
+                .anyMatch(e -> e.source().equals(pn) && !e.isQualified());
+    }
+}

src/java.base/share/classes/jdk/internal/module/ModuleBootstrap.java

@@ -147,7 +147,8 @@ public final class ModuleBootstrap {
                getProperty("jdk.module.limitmods") == null &&     // --limit-modules
                getProperty("jdk.module.addreads.0") == null &&    // --add-reads
                getProperty("jdk.module.addexports.0") == null &&  // --add-exports
-               getProperty("jdk.module.addopens.0") == null;      // --add-opens
+               getProperty("jdk.module.addopens.0") == null &&    // --add-opens
+               getProperty("jdk.module.illegalAccess") == null;   // --jbr-illegal-access
     }
 
     /**
@@ -188,6 +189,7 @@ public final class ModuleBootstrap {
         String mainModule = System.getProperty("jdk.module.main");
         Set<String> addModules = addModules();
         Set<String> limitModules = limitModules();
+        String illegalAccess = getAndRemoveProperty("jdk.module.illegalAccess");
 
         PrintStream traceOutput = null;
         String trace = getAndRemoveProperty("jdk.module.showModuleResolution");
@@ -219,7 +221,8 @@ public final class ModuleBootstrap {
                 && !haveModulePath
                 && addModules.isEmpty()
                 && limitModules.isEmpty()
-                && !isPatched) {
+                && !isPatched
+                && illegalAccess == null) {
             systemModuleFinder = archivedModuleGraph.finder();
             hasSplitPackages = archivedModuleGraph.hasSplitPackages();
             hasIncubatorModules = archivedModuleGraph.hasIncubatorModules();
@@ -454,10 +457,19 @@ public final class ModuleBootstrap {
             checkIncubatingStatus(cf);
         }
 
-        // --add-reads, --add-exports/--add-opens
+        // --add-reads, --add-exports/--add-opens, and --jbr-illegal-access
         addExtraReads(bootLayer);
         boolean extraExportsOrOpens = addExtraExportsAndOpens(bootLayer);
 
+        if (illegalAccess != null) {
+            assert systemModules != null;
+            addIllegalAccess(illegalAccess,
+                             systemModules,
+                             upgradeModulePath,
+                             bootLayer,
+                             extraExportsOrOpens);
+        }
+
         // add enable native access
         addEnableNativeAccess(bootLayer);
 
@@ -813,6 +825,74 @@ public final class ModuleBootstrap {
         return modules;
     }
 
+    /**
+     * Process the --jbr-illegal-access option to open packages of system modules
+     * in the boot layer to code in unnamed modules.
+     */
+    private static void addIllegalAccess(String illegalAccess,
+                                         SystemModules systemModules,
+                                         ModuleFinder upgradeModulePath,
+                                         ModuleLayer bootLayer,
+                                         boolean extraExportsOrOpens) {
+
+        Map<String, Set<String>> concealedPackagesToOpen = systemModules.concealedPackagesToOpen();
+        Map<String, Set<String>> exportedPackagesToOpen = systemModules.exportedPackagesToOpen();
+        if (concealedPackagesToOpen.isEmpty() && exportedPackagesToOpen.isEmpty()) {
+            // need to generate (exploded build)
+            IllegalAccessMaps maps = IllegalAccessMaps.generate(limitedFinder());
+            concealedPackagesToOpen = maps.concealedPackagesToOpen();
+            exportedPackagesToOpen = maps.exportedPackagesToOpen();
+        }
+
+        // open specific packages in the system modules
+        Set<String> emptySet = Set.of();
+        for (Module m : bootLayer.modules()) {
+            ModuleDescriptor descriptor = m.getDescriptor();
+            String name = m.getName();
+
+            // skip open modules
+            if (descriptor.isOpen()) {
+                continue;
+            }
+
+            // skip modules loaded from the upgrade module path
+            if (upgradeModulePath != null
+                && upgradeModulePath.find(name).isPresent()) {
+                continue;
+            }
+
+            Set<String> concealedPackages = concealedPackagesToOpen.getOrDefault(name, emptySet);
+            Set<String> exportedPackages = exportedPackagesToOpen.getOrDefault(name, emptySet);
+
+            // refresh the set of concealed and exported packages if needed
+            if (extraExportsOrOpens) {
+                concealedPackages = new HashSet<>(concealedPackages);
+                exportedPackages = new HashSet<>(exportedPackages);
+                Iterator<String> iterator = concealedPackages.iterator();
+                while (iterator.hasNext()) {
+                    String pn = iterator.next();
+                    if (m.isExported(pn, BootLoader.getUnnamedModule())) {
+                        // concealed package is exported to ALL-UNNAMED
+                        iterator.remove();
+                        exportedPackages.add(pn);
+                    }
+                }
+                iterator = exportedPackages.iterator();
+                while (iterator.hasNext()) {
+                    String pn = iterator.next();
+                    if (m.isOpen(pn, BootLoader.getUnnamedModule())) {
+                        // exported package is opened to ALL-UNNAMED
+                        iterator.remove();
+                    }
+                }
+            }
+
+            // open the packages to unnamed modules
+            JLA.addOpensToAllUnnamed(m, concealedPackages, exportedPackages);
+        }
+
+    }
+
     /**
      * Decodes the values of --add-reads, -add-exports, --add-opens or
      * --patch-modules options that are encoded in system properties.

src/java.base/share/classes/jdk/internal/module/SystemModules.java

@@ -83,4 +83,16 @@ interface SystemModules {
      * by this SystemModules object.
      */
     Map<String, Set<String>> moduleReads();
+
+    /**
+     * Returns the map of module concealed packages to open. The map key is the
+     * module name, the value is the set of concealed packages to open.
+     */
+    Map<String, Set<String>> concealedPackagesToOpen();
+
+    /**
+     * Returns the map of module exported packages to open. The map key is the
+     * module name, the value is the set of exported packages to open.
+     */
+    Map<String, Set<String>> exportedPackagesToOpen();
 }

src/java.base/share/classes/sun/launcher/resources/launcher.properties

@@ -188,6 +188,10 @@ java.launcher.X.usage=\n\
 \    --add-opens <module>/<package>=<target-module>(,<target-module>)*\n\
 \                      updates <module> to open <package> to\n\
 \                      <target-module>, regardless of module declaration.\n\
+\    --jbr-illegal-access\n\
+\                      permit access to members of types in named modules\n\
+\                      by code in unnamed modules.\n\
+\                      This option will be removed in a future release.\n\
 \    --limit-modules <module name>[,<module name>...]\n\
 \                      limit the universe of observable modules\n\
 \    --patch-module <module>=<file>({0}<file>)*\n\

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

@@ -38,11 +38,10 @@ import java.beans.PropertyChangeListener;
 import java.lang.annotation.Native;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
+import java.security.PrivilegedAction;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.Set;
-
 import java.util.concurrent.Callable;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.Arrays;
@@ -76,24 +75,18 @@ import sun.lwawt.LWWindowPeer;
 @SuppressWarnings("removal")
 class CAccessibility implements PropertyChangeListener {
     private static Set<String> ignoredRoles;
-    private static final int INVOKE_TIMEOUT_SECONDS_DEFAULT = 1;
     private static final int INVOKE_TIMEOUT_SECONDS;
 
     static {
-        AtomicInteger invokeTimeoutSecondsRef = new AtomicInteger();
-        // Need to load the native library for this code.
-        java.security.AccessController.doPrivileged(
-            new java.security.PrivilegedAction<Void>() {
-                public Void run() {
-                    System.loadLibrary("awt");
-                    invokeTimeoutSecondsRef.set(
-                            // (-1) for the infinite timeout
-                            Integer.getInteger("sun.lwawt.macosx.CAccessibility.invokeTimeoutSeconds",
-                                    INVOKE_TIMEOUT_SECONDS_DEFAULT));
-                    return null;
-                }
+        // (-1) for the infinite timeout
+        @SuppressWarnings("removal")
+        int value = java.security.AccessController.doPrivileged(
+            (PrivilegedAction<Integer>) () -> {
+                // Need to load the native library for this code.
+                System.loadLibrary("awt");
+                return Integer.getInteger("sun.lwawt.macosx.CAccessibility.invokeTimeoutSeconds", 1);
             });
-        INVOKE_TIMEOUT_SECONDS = invokeTimeoutSecondsRef.get();
+        INVOKE_TIMEOUT_SECONDS = value;
     }
 
     static CAccessibility sAccessibility;

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

@@ -66,6 +66,7 @@ import sun.awt.AWTAccessor.ComponentAccessor;
 import sun.awt.AWTAccessor.WindowAccessor;
 import sun.awt.AWTThreading;
 import sun.java2d.SurfaceData;
+import sun.lwawt.LWComponentPeer;
 import sun.lwawt.LWLightweightFramePeer;
 import sun.lwawt.LWToolkit;
 import sun.lwawt.LWWindowPeer;
@@ -105,6 +106,7 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
     private static native boolean nativeDelayShowing(long nsWindowPtr);
     private static native void nativeRaiseLevel(long nsWindowPtr, boolean popup, boolean onlyIfParentIsActive);
     private static native void nativeSetTransparentTitleBarHeight(long nsWindowPtr, float height);
+    private static native void nativeCallDeliverMoveResizeEvent(long nsWindowPtr);
 
     // Loger to report issues happened during execution but that do not affect functionality
     private static final PlatformLogger logger = PlatformLogger.getLogger("sun.lwawt.macosx.CPlatformWindow");
@@ -290,7 +292,7 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
         new Property<CPlatformWindow>(WINDOW_TRANSPARENT_TITLE_BAR_HEIGHT) {
             public void applyProperty(final CPlatformWindow c, final Object value) {
                 if (value != null && (value instanceof Float)) {
-                    c.execute(ptr -> nativeSetTransparentTitleBarHeight(ptr, (float) value));
+                    c.execute(ptr -> AWTThreading.executeWaitToolkit(wait -> nativeSetTransparentTitleBarHeight(ptr, (float) value)));
                 }
             }
         }
@@ -1195,6 +1197,10 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
         responder.handleWindowFocusEvent(gained, oppositePeer);
     }
 
+    public void doDeliverMoveResizeEvent() {
+        execute(ptr -> nativeCallDeliverMoveResizeEvent(ptr));
+    }
+
     protected void deliverMoveResizeEvent(int x, int y, int width, int height,
                                         boolean byUser) {
         AtomicBoolean ref = new AtomicBoolean();
@@ -1456,28 +1462,20 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
         isFullScreenAnimationOn = false;
     }
 
-    // called from client via reflection
-    private void setTransparentTitleBarHeight(float height) {
-        execute(ptr -> {
-            nativeSetTransparentTitleBarHeight(ptr, height);
-        });
-    }
-
-    private volatile List<Rectangle> customDecorHitTestSpots;
-
-    // called from client via reflection
-    private void setCustomDecorationHitTestSpots(List<Rectangle> hitTestSpots) {
-        this.customDecorHitTestSpots = new CopyOnWriteArrayList<>(hitTestSpots);
-    }
-
-    // called from native
-    private boolean hitTestCustomDecoration(float x, float y) {
-        List<Rectangle> spots = customDecorHitTestSpots;
-        if (spots == null) return false;
-        for (Rectangle spot : spots) {
-            if (spot.contains(x, y)) return true;
+    // JBR API internals
+    private static void setCustomDecorationTitleBarHeight(Window target, ComponentPeer peer, float height) {
+        if (peer instanceof LWComponentPeer) {
+            PlatformWindow platformWindow = ((LWComponentPeer<?, ?>) peer).getPlatformWindow();
+            if (platformWindow instanceof CPlatformWindow) {
+                ((CPlatformWindow) platformWindow).execute(ptr -> {
+                    AWTThreading.executeWaitToolkit(wait -> nativeSetTransparentTitleBarHeight(ptr, height));
+                });
+                if (target instanceof javax.swing.RootPaneContainer) {
+                    final javax.swing.JRootPane rootpane = ((javax.swing.RootPaneContainer)target).getRootPane();
+                    if (rootpane != null) rootpane.putClientProperty(WINDOW_TRANSPARENT_TITLE_BAR_HEIGHT, height);
+                }
+            }
         }
-        return false;
     }
 
 }

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

@@ -89,6 +89,7 @@ import java.net.URL;
 import java.security.*;
 import java.util.*;
 import java.util.concurrent.Callable;
+import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicReference;
@@ -675,30 +676,12 @@ public final class LWCToolkit extends LWToolkit {
         return invokeAndWait(callable, component, -1);
     }
 
-    static <T> T invokeAndWait(final Callable<T> callable, Component component, int timeoutSeconds) throws Exception {
+    public static <T> T invokeAndWait(final Callable<T> callable, Component component, int timeoutSeconds) throws Exception {
         final CallableWrapper<T> wrapper = new CallableWrapper<>(callable);
         invokeAndWait(wrapper, component, false, timeoutSeconds);
         return wrapper.getResult();
     }
 
-    static final class CancelableRunnable implements Runnable {
-        volatile Runnable runnable;
-
-        public CancelableRunnable(Runnable runnable) {
-            this.runnable = runnable;
-        }
-
-        @Override
-        public void run() {
-            Runnable r = runnable;
-            if (r != null) r.run();
-        }
-
-        public void cancel() {
-            runnable = null;
-        }
-    }
-
     static final class CallableWrapper<T> implements Runnable {
         final Callable<T> callable;
         T object;
@@ -776,7 +759,7 @@ public final class LWCToolkit extends LWToolkit {
         invokeAndWait(runnable, component, false, -1);
     }
 
-    static void invokeAndWait(Runnable runnable, Component component, boolean processEvents, int timeoutSeconds)
+    public static void invokeAndWait(Runnable runnable, Component component, boolean processEvents, int timeoutSeconds)
             throws InvocationTargetException
     {
         if (log.isLoggable(PlatformLogger.Level.FINE)) {
@@ -784,24 +767,17 @@ public final class LWCToolkit extends LWToolkit {
         }
 
         boolean nonBlockingRunLoop;
-        CancelableRunnable cancelableRunnable = new CancelableRunnable(runnable);
 
         synchronized (priorityInvocationPending) {
             nonBlockingRunLoop = priorityInvocationPending.get();
             if (!nonBlockingRunLoop) blockingRunLoopCounter.incrementAndGet();
         }
 
-        final long mediator = createAWTRunLoopMediator();
+        AWTThreading.TrackedInvocationEvent invocationEvent =
+            AWTThreading.createAndTrackInvocationEvent(component, runnable, true);
 
-        InvocationEvent invocationEvent =
-                AWTThreading.createAndTrackInvocationEvent(component,
-                        cancelableRunnable,
-                        () -> {
-                            if (mediator != 0) {
-                                stopAWTRunLoop(mediator);
-                            }
-                        },
-                        true);
+        long mediator = createAWTRunLoopMediator();
+        invocationEvent.onDone(() -> stopAWTRunLoop(mediator));
 
         if (component != null) {
             AppContext appContext = SunToolkit.targetToAppContext(component);
@@ -815,10 +791,21 @@ public final class LWCToolkit extends LWToolkit {
             ((LWCToolkit)Toolkit.getDefaultToolkit()).getSystemEventQueueForInvokeAndWait().postEvent(invocationEvent);
         }
 
+        CompletableFuture<Void> eventDispatchThreadFreeFuture =
+            AWTThreading.getInstance(component).onEventDispatchThreadFree(() -> {
+                if (!invocationEvent.isDone()) {
+                    // EventQueue is now empty but the posted InvocationEvent is still not dispatched,
+                    // consider it lost then.
+                    invocationEvent.dispose("InvocationEvent was lost");
+                }
+            });
+
+        invocationEvent.onDone(() -> eventDispatchThreadFreeFuture.cancel(false));
+
         if (!doAWTRunLoop(mediator, nonBlockingRunLoop, timeoutSeconds)) {
-            new Throwable("Invocation timed out (" + timeoutSeconds + "sec)").printStackTrace();
-            cancelableRunnable.cancel();
+            invocationEvent.dispose("InvocationEvent has timed out");
         }
+
         if (!nonBlockingRunLoop) blockingRunLoopCounter.decrementAndGet();
 
         if (log.isLoggable(PlatformLogger.Level.FINE)) {

src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.h

@@ -50,6 +50,10 @@
     NSWindowTabbingMode javaWindowTabbingMode;
     BOOL isEnterFullScreen;
     CGFloat _transparentTitleBarHeight;
+    id<NSObject> _windowWillEnterFullScreenNotification;
+    id<NSObject> _windowWillExitFullScreenNotification;
+    id<NSObject> _windowDidExitFullScreenNotification;
+    NSMutableArray* _transparentTitleBarConstraints;
     NSLayoutConstraint *_transparentTitleBarHeightConstraint;
     NSMutableArray *_transparentTitleBarButtonCenterXConstraints;
 }

src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.m

@@ -26,6 +26,7 @@
 #include <objc/objc-runtime.h>
 #import <Cocoa/Cocoa.h>
 
+#include <java_awt_Window_CustomWindowDecoration.h>
 #import "sun_lwawt_macosx_CPlatformWindow.h"
 #import "com_apple_eawt_event_GestureHandler.h"
 #import "com_apple_eawt_FullScreenHandler.h"
@@ -775,7 +776,7 @@ AWT_ASSERT_APPKIT_THREAD;
 // NSWindowDelegate methods
 
 - (void) _deliverMoveResizeEvent {
-AWT_ASSERT_APPKIT_THREAD;
+    AWT_ASSERT_APPKIT_THREAD;
 
     // deliver the event if this is a user-initiated live resize or as a side-effect
     // of a Java initiated resize, because AppKit can override the bounds and force
@@ -784,10 +785,18 @@ AWT_ASSERT_APPKIT_THREAD;
     JNIEnv *env = [ThreadUtilities getJNIEnv];
     jobject platformWindow = (*env)->NewLocalRef(env, self.javaPlatformWindow);
     if (platformWindow == NULL) {
-        // TODO: create generic AWT assert
+        NSLog(@"[AWTWindow _deliverMoveResizeEvent]: platformWindow == NULL");
+        return;
+    }
+    NSRect frame;
+    @try {
+        frame = ConvertNSScreenRect(env, [self.nsWindow frame]);
+    } @catch (NSException *e) {
+        NSLog(@"WARNING: suppressed exception from ConvertNSScreenRect() in [AWTWindow _deliverMoveResizeEvent]");
+        NSProcessInfo *processInfo = [NSProcessInfo processInfo];
+        [NSApplicationAWT logException:e forProcess:processInfo];
+        return;
     }
-
-    NSRect frame = ConvertNSScreenRect(env, [self.nsWindow frame]);
 
     GET_CPLATFORM_WINDOW_CLASS();
     DECLARE_METHOD(jm_deliverMoveResizeEvent, jc_CPlatformWindow, "deliverMoveResizeEvent", "(IIIIZ)V");
@@ -1009,7 +1018,7 @@ AWT_ASSERT_APPKIT_THREAD;
 #ifdef DEBUG
     NSLog(@"resigned key: %d %@ %@", [self.nsWindow isMainWindow], [self.nsWindow title], [self menuBarForWindow]);
 #endif
-    if (![self.nsWindow isMainWindow]) {
+    if (![self.nsWindow isMainWindow] || [NSApp keyWindow] == self.nsWindow) {
         [self deactivateWindow];
     }
 }
@@ -1038,7 +1047,9 @@ AWT_ASSERT_APPKIT_THREAD;
     NSWindow *keyWindow = [NSApp keyWindow];
     AWTWindow *opposite = nil;
     if ([AWTWindow isAWTWindow: keyWindow]) {
-        opposite = (AWTWindow *)[keyWindow delegate];
+        if (keyWindow != self.nsWindow) {
+            opposite = (AWTWindow *)[keyWindow delegate];
+        }
         [AWTWindow setLastKeyWindow: self];
     } else {
         [AWTWindow setLastKeyWindow: nil];
@@ -1294,10 +1305,10 @@ static const CGFloat DefaultHorizontalTitleBarButtonOffset = 20.0;
     NSView* titlebarContainer = titlebar.superview;
     NSView* themeFrame = titlebarContainer.superview;
 
-    NSMutableArray* newConstraints = [[NSMutableArray alloc] init];
+    _transparentTitleBarConstraints = [[NSMutableArray alloc] init];
     titlebarContainer.translatesAutoresizingMaskIntoConstraints = NO;
     _transparentTitleBarHeightConstraint = [titlebarContainer.heightAnchor constraintEqualToConstant:_transparentTitleBarHeight];
-    [newConstraints addObjectsFromArray:@[
+    [_transparentTitleBarConstraints addObjectsFromArray:@[
         [titlebarContainer.leftAnchor constraintEqualToAnchor:themeFrame.leftAnchor],
         [titlebarContainer.widthAnchor constraintEqualToAnchor:themeFrame.widthAnchor],
         [titlebarContainer.topAnchor constraintEqualToAnchor:themeFrame.topAnchor],
@@ -1310,7 +1321,7 @@ static const CGFloat DefaultHorizontalTitleBarButtonOffset = 20.0;
     for (NSView* view in @[titlebar, windowDragView])
     {
         view.translatesAutoresizingMaskIntoConstraints = NO;
-        [newConstraints addObjectsFromArray:@[
+        [_transparentTitleBarConstraints addObjectsFromArray:@[
             [view.leftAnchor constraintEqualToAnchor:titlebarContainer.leftAnchor],
             [view.rightAnchor constraintEqualToAnchor:titlebarContainer.rightAnchor],
             [view.topAnchor constraintEqualToAnchor:titlebarContainer.topAnchor],
@@ -1326,7 +1337,7 @@ static const CGFloat DefaultHorizontalTitleBarButtonOffset = 20.0;
         button.translatesAutoresizingMaskIntoConstraints = NO;
         NSLayoutConstraint* buttonCenterXConstraint = [button.centerXAnchor constraintEqualToAnchor:titlebarContainer.leftAnchor constant:(_transparentTitleBarHeight/2.0 + (index * horizontalButtonOffset))];
         [_transparentTitleBarButtonCenterXConstraints addObject:buttonCenterXConstraint];
-        [newConstraints addObjectsFromArray:@[
+        [_transparentTitleBarConstraints addObjectsFromArray:@[
             [button.widthAnchor constraintLessThanOrEqualToAnchor:titlebarContainer.heightAnchor multiplier:0.5],
             // Those corrections are required to keep the icons perfectly round because macOS adds a constant 2 px in resulting height to their frame
             [button.heightAnchor constraintEqualToAnchor: button.widthAnchor multiplier:14.0/12.0 constant:-2.0],
@@ -1335,7 +1346,7 @@ static const CGFloat DefaultHorizontalTitleBarButtonOffset = 20.0;
         ]];
     }];
 
-    [NSLayoutConstraint activateConstraints:newConstraints];
+    [NSLayoutConstraint activateConstraints:_transparentTitleBarConstraints];
 }
 
 - (void) updateTransparentTitleBarConstraints
@@ -1361,20 +1372,22 @@ static const CGFloat DefaultHorizontalTitleBarButtonOffset = 20.0;
     NSView* titlebarContainer = titlebar.superview;
     NSView* themeFrame = titlebarContainer.superview;
 
+    [NSLayoutConstraint deactivateConstraints:_transparentTitleBarConstraints];
+
     AWTWindowDragView* windowDragView;
     for (NSView* view in titlebar.subviews) {
         if ([view isMemberOfClass:[AWTWindowDragView class]]) {
             windowDragView = view;
         }
         if (view.translatesAutoresizingMaskIntoConstraints == NO) {
-            [view removeConstraints:view.constraints];
             view.translatesAutoresizingMaskIntoConstraints = YES;
         }
     }
     [windowDragView removeFromSuperview];
-    [titlebarContainer removeConstraints:titlebarContainer.constraints];
     titlebarContainer.translatesAutoresizingMaskIntoConstraints = YES;
+    titlebar.translatesAutoresizingMaskIntoConstraints = YES;
 
+    _transparentTitleBarConstraints = nil;
     _transparentTitleBarHeightConstraint = nil;
     _transparentTitleBarButtonCenterXConstraints = nil;
 }
@@ -1403,23 +1416,44 @@ static const CGFloat DefaultHorizontalTitleBarButtonOffset = 20.0;
     });
     NSNotificationCenter* defaultCenter = [NSNotificationCenter defaultCenter];
     NSOperationQueue* mainQueue = [NSOperationQueue mainQueue];
-    [defaultCenter addObserverForName:NSWindowWillEnterFullScreenNotification object:self.nsWindow queue:mainQueue usingBlock:^(NSNotification* notification) {
+    _windowWillEnterFullScreenNotification = [defaultCenter addObserverForName:NSWindowWillEnterFullScreenNotification object:self.nsWindow queue:mainQueue usingBlock:^(NSNotification* notification) {
         [self resetTitleBar];
     }];
-    [defaultCenter addObserverForName:NSWindowWillExitFullScreenNotification object:self.nsWindow queue:mainQueue usingBlock:^(NSNotification* notification) {
+    _windowWillExitFullScreenNotification = [defaultCenter addObserverForName:NSWindowWillExitFullScreenNotification object:self.nsWindow queue:mainQueue usingBlock:^(NSNotification* notification) {
         [self setWindowControlsHidden:YES];
     }];
-    [defaultCenter addObserverForName:NSWindowDidExitFullScreenNotification object:self.nsWindow queue:mainQueue usingBlock:^(NSNotification* notification) {
+    _windowDidExitFullScreenNotification = [defaultCenter addObserverForName:NSWindowDidExitFullScreenNotification object:self.nsWindow queue:mainQueue usingBlock:^(NSNotification* notification) {
         [self setUpTransparentTitleBar];
         [self setWindowControlsHidden:NO];
     }];
 }
 
+- (void) configureWindowAndListenersForDefaultTitleBar
+{
+    dispatch_sync(dispatch_get_main_queue(), ^{
+        [self.nsWindow setTitlebarAppearsTransparent:NO];
+        [self.nsWindow setTitleVisibility:NSWindowTitleVisible];
+        [self.nsWindow setStyleMask:[self.nsWindow styleMask]&(~NSWindowStyleMaskFullSizeContentView)];
+
+        if (!self.isFullScreen) {
+            [self resetTitleBar];
+        }
+    });
+    NSNotificationCenter* defaultCenter = [NSNotificationCenter defaultCenter];
+    [defaultCenter removeObserver:_windowWillEnterFullScreenNotification];
+    [defaultCenter removeObserver:_windowWillExitFullScreenNotification];
+    [defaultCenter removeObserver:_windowDidExitFullScreenNotification];
+    _windowWillEnterFullScreenNotification = _windowWillExitFullScreenNotification = _windowDidExitFullScreenNotification = nil;
+}
+
 - (void) setTransparentTitleBarHeight: (CGFloat) transparentTitleBarHeight
 {
+    if (_transparentTitleBarHeight == transparentTitleBarHeight) return;
     if (_transparentTitleBarHeight != 0.0f) {
         _transparentTitleBarHeight = transparentTitleBarHeight;
-        if (_transparentTitleBarHeightConstraint != nil || _transparentTitleBarButtonCenterXConstraints != nil) {
+        if (transparentTitleBarHeight == 0.0f) {
+            [self configureWindowAndListenersForDefaultTitleBar];
+        } else if (_transparentTitleBarHeightConstraint != nil || _transparentTitleBarButtonCenterXConstraints != nil) {
             [self updateTransparentTitleBarConstraints];
         }
     } else {
@@ -1455,11 +1489,18 @@ static const CGFloat DefaultHorizontalTitleBarButtonOffset = 20.0;
     jobject platformWindow = (*env)->NewLocalRef(env, self.javaPlatformWindow);
     if (platformWindow != NULL) {
         GET_CPLATFORM_WINDOW_CLASS_RETURN(YES);
-        DECLARE_METHOD_RETURN(jm_hitTestCustomDecoration, jc_CPlatformWindow, "hitTestCustomDecoration", "(FF)Z", YES);
-        NSRect frame = [self.window frame];
-        float windowHeight = frame.size.height;
-        returnValue = (*env)->CallBooleanMethod(env, platformWindow, jm_hitTestCustomDecoration, point.x,  windowHeight - point.y) == JNI_TRUE ? NO : YES;
-        CHECK_EXCEPTION_IN_ENV(env);
+        DECLARE_FIELD_RETURN(jf_target, jc_CPlatformWindow, "target", "Ljava/awt/Window;", YES);
+        DECLARE_CLASS_RETURN(jc_Window, "java/awt/Window", YES);
+        DECLARE_METHOD_RETURN(jm_hitTestCustomDecoration, jc_Window, "hitTestCustomDecoration", "(II)I", YES);
+        jobject awtWindow = (*env)->GetObjectField(env, platformWindow, jf_target);
+        if (awtWindow != NULL) {
+            NSRect frame = [self.window frame];
+            float windowHeight = frame.size.height;
+            returnValue = (*env)->CallIntMethod(env, awtWindow, jm_hitTestCustomDecoration, (jint) point.x,  (jint) (windowHeight - point.y)) ==
+                                  (jint) java_awt_Window_CustomWindowDecoration_NO_HIT_SPOT ? YES : NO;
+            CHECK_EXCEPTION();
+            (*env)->DeleteLocalRef(env, awtWindow);
+        }
         (*env)->DeleteLocalRef(env, platformWindow);
     }
     return returnValue;
@@ -2300,4 +2341,18 @@ JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CPlatformWindow_nativeSetTransparen
     [window setTransparentTitleBarHeight:((CGFloat) transparentTitleBarHeight)];
 
     JNI_COCOA_EXIT(env);
-}
+}
+
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CPlatformWindow_nativeCallDeliverMoveResizeEvent
+(JNIEnv *env, jclass clazz, jlong windowPtr)
+{
+    JNI_COCOA_ENTER(env);
+
+    NSWindow *nsWindow = (NSWindow *)jlong_to_ptr(windowPtr);
+    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
+        AWTWindow *window = (AWTWindow*)[nsWindow delegate];
+        [window _deliverMoveResizeEvent];
+    }];
+
+    JNI_COCOA_EXIT(env);
+}

src/java.desktop/macosx/native/libawt_lwawt/awt/LWCToolkit.m

@@ -632,6 +632,8 @@ JNI_COCOA_ENTER(env);
 
     AWTRunLoopObject* mediatorObject = (AWTRunLoopObject*)jlong_to_ptr(mediator);
 
+    if (mediatorObject == nil) return;
+
     [ThreadUtilities performOnMainThread:@selector(endRunLoop) on:mediatorObject withObject:nil waitUntilDone:NO];
 
     [mediatorObject release];

src/java.desktop/share/classes/com/jetbrains/desktop/JBRApiModule.java

@@ -30,6 +30,7 @@ public class JBRApiModule {
                     .withStatic("getSubpixelResolution", "sun.font.FontUtilities")
                 .service("com.jetbrains.JBRFileDialogService", null)
                     .withStatic("getFileDialog", "com.jetbrains.desktop.JBRFileDialog", "get")
-                .proxy("com.jetbrains.JBRFileDialog", "com.jetbrains.desktop.JBRFileDialog");
+                .proxy("com.jetbrains.JBRFileDialog", "com.jetbrains.desktop.JBRFileDialog")
+                .service("com.jetbrains.CustomWindowDecoration", "java.awt.Window$CustomWindowDecoration");
     }
 }

src/java.desktop/share/classes/java/awt/EventQueue.java

@@ -358,6 +358,7 @@ public class EventQueue {
             if (shouldNotify) {
                 if (theEvent.getSource() != AWTAutoShutdown.getInstance()) {
                     AWTAutoShutdown.getInstance().notifyThreadBusy(dispatchThread);
+                    AWTThreading.getInstance(dispatchThread).notifyEventDispatchThreadBusy();
                 }
                 pushPopCond.signalAll();
             } else if (notifyID) {
@@ -570,6 +571,7 @@ public class EventQueue {
                     return event;
                 }
                 AWTAutoShutdown.getInstance().notifyThreadFree(dispatchThread);
+                AWTThreading.getInstance(dispatchThread).notifyEventDispatchThreadFree();
                 pushPopCond.await();
             } finally {
                 pushPopLock.unlock();
@@ -1128,6 +1130,7 @@ public class EventQueue {
                             t.setPriority(Thread.NORM_PRIORITY + 1);
                             t.setDaemon(false);
                             AWTAutoShutdown.getInstance().notifyThreadBusy(t);
+                            AWTThreading.getInstance(t).notifyEventDispatchThreadBusy();
                             return t;
                         }
                     }
@@ -1158,6 +1161,7 @@ public class EventQueue {
                 dispatchThread = null;
             }
             AWTAutoShutdown.getInstance().notifyThreadFree(edt);
+            AWTThreading.getInstance(edt).notifyEventDispatchThreadFree();
             /*
              * Event was posted after EDT events pumping had stopped, so start
              * another EDT to handle this event

src/java.desktop/share/classes/java/awt/Window.java

@@ -46,13 +46,17 @@ import java.io.ObjectOutputStream;
 import java.io.OptionalDataException;
 import java.io.Serial;
 import java.io.Serializable;
+import java.lang.annotation.Native;
+import java.lang.invoke.MethodHandles;
 import java.lang.ref.WeakReference;
 import java.lang.reflect.InvocationTargetException;
 import java.security.AccessController;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.EventListener;
+import java.util.List;
 import java.util.Locale;
+import java.util.Map;
 import java.util.ResourceBundle;
 import java.util.Set;
 import java.util.Vector;
@@ -64,6 +68,7 @@ import javax.accessibility.AccessibleRole;
 import javax.accessibility.AccessibleState;
 import javax.accessibility.AccessibleStateSet;
 
+import com.jetbrains.internal.JBRApi;
 import sun.awt.AWTAccessor;
 import sun.awt.AWTPermissions;
 import sun.awt.AppContext;
@@ -4007,7 +4012,66 @@ public class Window extends Container implements Accessible {
     }
 
     private volatile boolean hasCustomDecoration;
+    private volatile List<Map.Entry<Shape, Integer>> customDecorHitTestSpots;
+    private volatile int customDecorTitleBarHeight = -1; // 0 can be a legal value when no title bar is expected
 
+    // called from native
+    private int hitTestCustomDecoration(int x, int y) {
+        var spots = customDecorHitTestSpots;
+        if (spots == null) return CustomWindowDecoration.NO_HIT_SPOT;
+        for (var spot : spots) {
+            if (spot.getKey().contains(x, y)) return spot.getValue();
+        }
+        return CustomWindowDecoration.NO_HIT_SPOT;
+    }
+
+    private static class CustomWindowDecoration {
+
+        @Native public static final int
+                NO_HIT_SPOT = 0,
+                OTHER_HIT_SPOT = 1,
+                MINIMIZE_BUTTON = 2,
+                MAXIMIZE_BUTTON = 3,
+                CLOSE_BUTTON = 4,
+                MENU_BAR = 5;
+
+        void setCustomDecorationEnabled(Window window, boolean enabled) {
+            window.hasCustomDecoration = enabled;
+            if (MacOS.INSTANCE != null && window.customDecorTitleBarHeight > 0f) {
+                MacOS.INSTANCE.setTitleBarHeight(window, window.peer, enabled ? window.customDecorTitleBarHeight : 0);
+            }
+        }
+        boolean isCustomDecorationEnabled(Window window) {
+            return window.hasCustomDecoration;
+        }
+
+        void setCustomDecorationHitTestSpots(Window window, List<Map.Entry<Shape, Integer>> spots) {
+            window.customDecorHitTestSpots = List.copyOf(spots);
+        }
+        List<Map.Entry<Shape, Integer>> getCustomDecorationHitTestSpots(Window window) {
+            return window.customDecorHitTestSpots;
+        }
+
+        void setCustomDecorationTitleBarHeight(Window window, int height) {
+            if (height >= 0) {
+                window.customDecorTitleBarHeight = height;
+                if (MacOS.INSTANCE != null && window.hasCustomDecoration) {
+                    MacOS.INSTANCE.setTitleBarHeight(window, window.peer, height);
+                }
+            }
+        }
+        int getCustomDecorationTitleBarHeight(Window window) {
+            return window.customDecorTitleBarHeight;
+        }
+
+        private interface MacOS {
+            MacOS INSTANCE = (MacOS) JBRApi.internalServiceBuilder(MethodHandles.lookup(), null)
+                    .withStatic("setTitleBarHeight", "sun.lwawt.macosx.CPlatformWindow", "setCustomDecorationTitleBarHeight").build();
+            void setTitleBarHeight(Window target, ComponentPeer peer, float height);
+        }
+    }
+
+    @Deprecated
     boolean hasCustomDecoration() {
         return hasCustomDecoration;
     }
@@ -4015,6 +4079,7 @@ public class Window extends Container implements Accessible {
     /**
      * Set via reflection (JB JdkEx API).
      */
+    @Deprecated
     void setHasCustomDecoration() {
         hasCustomDecoration = true;
     }

src/java.desktop/share/classes/sun/awt/AWTThreading.java

@@ -8,15 +8,27 @@ import java.awt.event.InvocationEvent;
 import java.lang.ref.WeakReference;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
-import java.util.Map;
-import java.util.Stack;
+import java.util.*;
+import java.util.List;
 import java.util.concurrent.*;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Function;
 
 /**
  * Used to perform a cross threads (EventDispatch, Toolkit) execution so that the execution does not cause a deadlock.
+ *
+ * Note: the log messages are tested by jdk/jb/java/awt/Toolkit/LWCToolkitInvokeAndWaitTest.java
  */
 public class AWTThreading {
-    private static final PlatformLogger logger = PlatformLogger.getLogger("sun.awt.AWTThreading");
+    private static final PlatformLogger logger = PlatformLogger.getLogger(AWTThreading.class.getName());
+
+    private static final Runnable EMPTY_RUNNABLE = () -> {};
+
+    private static final AtomicReference<Function<Thread, AWTThreading>> theAWTThreadingFactory =
+            new AtomicReference<>(AWTThreading::new);
+
+    private final Thread eventDispatchThread;
 
     private ExecutorService executor;
     // every invokeAndWait() pushes a queue of invocations
@@ -24,13 +36,21 @@ public class AWTThreading {
 
     private int level; // re-entrance level
 
+    private final List<CompletableFuture<Void>> eventDispatchThreadStateNotifiers = new ArrayList<>();
+    private volatile boolean isEventDispatchThreadFree;
+
     // invocations should be dispatched on proper EDT (per AppContext)
     private static final Map<Thread, AWTThreading> EDT_TO_INSTANCE_MAP = new ConcurrentHashMap<>();
 
     @SuppressWarnings("serial")
     private static class TrackingQueue extends LinkedBlockingQueue<InvocationEvent> {}
 
-    private AWTThreading() {}
+    /**
+     * WARNING: for testing purpose, use {@link AWTThreading#getInstance(Thread)} instead.
+     */
+    public AWTThreading(Thread edt) {
+        eventDispatchThread = edt;
+    }
 
     /**
      * Executes a callable from EventDispatch thread (EDT). It's assumed the callable either performs a blocking execution on Toolkit
@@ -178,8 +198,15 @@ public class AWTThreading {
      * <li>If the event is first dispatched from EventQueue - it gets removed from the tracking queue.
      * <li>If the event is first dispatched from the tracking queue - its dispatching on EventQueue will be noop.
      * <ul>
+     *
+     * @param source the source of the event
+     * @param onDispatched called back on event dispatching
+     * @param catchThrowables should catch Throwable's or propagate to the EventDispatch thread's loop
      */
-    public static InvocationEvent createAndTrackInvocationEvent(Object source, Runnable runnable, Runnable listener, boolean catchThrowables) {
+    public static TrackedInvocationEvent createAndTrackInvocationEvent(Object source,
+                                                                       Runnable onDispatched,
+                                                                       boolean catchThrowables)
+    {
         AWTThreading instance = getInstance(source);
         if (instance != null) {
             synchronized (instance.invocations) {
@@ -187,65 +214,204 @@ public class AWTThreading {
                     instance.invocations.push(new TrackingQueue());
                 }
                 final TrackingQueue queue = instance.invocations.peek();
-                final InvocationEvent[] eventRef = new InvocationEvent[1];
+                final AtomicReference<TrackedInvocationEvent> eventRef = new AtomicReference<>();
 
-                queue.add(eventRef[0] = new InvocationEvent(
-                        source,
-                        runnable,
-                        // Wrap the original completion listener so that it:
-                        // - guarantees a single run either from dispatch or dispose
-                        // - removes the invocation event from the tracking queue
-                        new Runnable() {
-                            WeakReference<TrackingQueue> queueRef = new WeakReference<>(queue);
+                eventRef.set(TrackedInvocationEvent.create(
+                    source,
+                    onDispatched,
+                    new Runnable() {
+                        final WeakReference<TrackingQueue> queueRef = new WeakReference<>(queue);
 
-                            @Override
-                            public void run() {
-                                if (queueRef != null) {
-                                    if (listener != null) {
-                                        listener.run();
-                                    }
-                                    TrackingQueue q = queueRef.get();
-                                    if (q != null) {
-                                        q.remove(eventRef[0]);
-                                    }
-                                    queueRef = null;
-                                }
+                        @Override
+                        public void run() {
+                            TrackingQueue queue = queueRef.get();
+                            queueRef.clear();
+                            if (queue != null) {
+                                queue.remove(eventRef.get());
                             }
-                        },
-                        catchThrowables)
-                {
-                    @Override
-                    public void dispatch() {
-                        if (!isDispatched()) {
-                            super.dispatch();
                         }
-                    }
-                });
-                return eventRef[0];
+                    },
+                    catchThrowables));
+
+                queue.add(eventRef.get());
+                return eventRef.get();
             }
         }
-        return new InvocationEvent(source, runnable, listener, catchThrowables);
+        return TrackedInvocationEvent.create(source, onDispatched, () -> {}, catchThrowables);
     }
 
-    private static AWTThreading getInstance(Object obj) {
-        if (obj == null) return null;
+    @SuppressWarnings("serial")
+    public static class TrackedInvocationEvent extends InvocationEvent {
+        private final long creationTime = System.currentTimeMillis();
+        private final Throwable throwable = new Throwable();
+        private final CompletableFuture<Void> futureResult = new CompletableFuture<>();
+
+        // dispatched or disposed
+        private final AtomicBoolean isFinished = new AtomicBoolean(false);
+
+        static TrackedInvocationEvent create(Object source,
+                                             Runnable onDispatch,
+                                             Runnable onDone,
+                                             boolean catchThrowables)
+        {
+            final AtomicReference<TrackedInvocationEvent> eventRef = new AtomicReference<>();
+            eventRef.set(new TrackedInvocationEvent(
+                source,
+                onDispatch,
+                () -> {
+                    if (onDone != null) {
+                        onDone.run();
+                    }
+                    TrackedInvocationEvent thisEvent = eventRef.get();
+                    if (!thisEvent.isDispatched()) {
+                        // If we're here - this {onDone} is being disposed.
+                        thisEvent.finishIfNotYet(() ->
+                            // If we're here - this {onDone} is called by the outer AWTAccessor.getInvocationEventAccessor().dispose()
+                            // which we do not control, so complete here.
+                            thisEvent.futureResult.completeExceptionally(new Throwable("InvocationEvent was disposed"))
+                        );
+                    }
+                },
+                catchThrowables));
+            return eventRef.get();
+        }
+
+        protected TrackedInvocationEvent(Object source, Runnable onDispatched, Runnable onDone, boolean catchThrowables) {
+            super(source,
+                  Optional.of(onDispatched).orElse(EMPTY_RUNNABLE),
+                  Optional.of(onDone).orElse(EMPTY_RUNNABLE),
+                  catchThrowables);
+
+            futureResult.whenComplete((r, ex) -> {
+                if (ex != null) {
+                    String message = ex.getMessage() + " (awaiting " + (System.currentTimeMillis() - creationTime) + " ms)";
+                    if (logger.isLoggable(PlatformLogger.Level.FINE)) {
+                        ex.initCause(throwable);
+                        logger.fine(message, ex);
+                    } else if (logger.isLoggable(PlatformLogger.Level.INFO)) {
+                        StackTraceElement[] stack = throwable.getStackTrace();
+                        logger.info(message + ". Originated at " + stack[stack.length - 1]);
+                    }
+                }
+            });
+        }
+
+        @Override
+        public void dispatch() {
+            finishIfNotYet(super::dispatch);
+            futureResult.complete(null);
+        }
+
+        public void dispose(String reason) {
+            finishIfNotYet(() -> AWTAccessor.getInvocationEventAccessor().dispose(this));
+            futureResult.completeExceptionally(new Throwable(reason));
+        }
+
+        private void finishIfNotYet(Runnable finish) {
+            if (!isFinished.getAndSet(true)) {
+                finish.run();
+            }
+        }
+
+        /**
+         * Returns whether the event is dispatched or disposed.
+         */
+        public boolean isDone() {
+            return futureResult.isDone();
+        }
+
+        /**
+         * Calls the runnable when it's done (immediately if it's done).
+         */
+        public void onDone(Runnable runnable) {
+            futureResult.whenComplete((r, ex) -> Optional.of(runnable).orElse(EMPTY_RUNNABLE).run());
+        }
+    }
+
+    public static AWTThreading getInstance(Object obj) {
+        if (obj == null) {
+            return getInstance(Toolkit.getDefaultToolkit().getSystemEventQueue());
+        }
 
         AppContext appContext = SunToolkit.targetToAppContext(obj);
-        if (appContext == null) return null;
+        if (appContext == null) {
+            return getInstance(Toolkit.getDefaultToolkit().getSystemEventQueue());
+        }
 
         return getInstance((EventQueue)appContext.get(AppContext.EVENT_QUEUE_KEY));
     }
 
-    private static AWTThreading getInstance(EventQueue eq) {
+    public static AWTThreading getInstance(EventQueue eq) {
         if (eq == null) return null;
 
         return getInstance(AWTAccessor.getEventQueueAccessor().getDispatchThread(eq));
     }
 
-    private static AWTThreading getInstance(Thread edt) {
-        if (edt == null) return null;
+    public static AWTThreading getInstance(Thread edt) {
+        assert edt != null;
 
-        return EDT_TO_INSTANCE_MAP.computeIfAbsent(edt, key -> new AWTThreading());
+        return EDT_TO_INSTANCE_MAP.computeIfAbsent(edt, key -> theAWTThreadingFactory.get().apply(edt));
+    }
+
+    public Thread getEventDispatchThread() {
+        return eventDispatchThread;
+    }
+
+    /**
+     * Sets {@code AWTThreading} instance factory.
+     * WARNING: for testing purpose.
+     */
+    public static void setAWTThreadingFactory(Function<Thread, AWTThreading> factory) {
+        theAWTThreadingFactory.set(factory);
+    }
+
+    public void notifyEventDispatchThreadFree() {
+        List<CompletableFuture<Void>> notifiers = Collections.emptyList();
+        synchronized (eventDispatchThreadStateNotifiers) {
+            isEventDispatchThreadFree = true;
+            if (eventDispatchThreadStateNotifiers.size() > 0) {
+                notifiers = List.copyOf(eventDispatchThreadStateNotifiers);
+            }
+        }
+        if (logger.isLoggable(PlatformLogger.Level.FINER)) {
+            logger.finer("notifyEventDispatchThreadFree");
+        }
+        // notify callbacks out of the synchronization block
+        notifiers.forEach(f -> f.complete(null));
+    }
+
+    public void notifyEventDispatchThreadBusy() {
+        synchronized (eventDispatchThreadStateNotifiers) {
+            isEventDispatchThreadFree = false;
+        }
+        if (logger.isLoggable(PlatformLogger.Level.FINER)) {
+            logger.finer("notifyEventDispatchThreadBusy");
+        }
+    }
+
+    /**
+     * Sets a callback and returns a {@code CompletableFuture} reporting the case when the associated EventDispatch thread
+     * has gone sleeping and stopped dispatching events because of empty EventQueue. If the EventDispatch thread is free
+     * at the moment then the callback is called immediately on the caller's thread and the future completes.
+     */
+    public CompletableFuture<Void> onEventDispatchThreadFree(Runnable runnable) {
+        CompletableFuture<Void> future = new CompletableFuture<>();
+        future.thenRun(Optional.of(runnable).orElse(EMPTY_RUNNABLE));
+
+        if (!isEventDispatchThreadFree) {
+            synchronized (eventDispatchThreadStateNotifiers) {
+                if (!isEventDispatchThreadFree) {
+                    eventDispatchThreadStateNotifiers.add(future);
+                    future.whenComplete((r, ex) -> eventDispatchThreadStateNotifiers.remove(future));
+                    return future;
+                }
+            }
+        }
+        if (logger.isLoggable(PlatformLogger.Level.FINER)) {
+            logger.finer("onEventDispatchThreadFree: free at the moment");
+        }
+        future.complete(null);
+        return future;
     }
 
     public interface Task {

src/java.desktop/unix/classes/sun/awt/X11/XDecoratedPeer.java

@@ -781,19 +781,12 @@ abstract class XDecoratedPeer extends XWindowPeer {
             return;
         }
 
-        /*
-         * Some window managers configure before we are reparented and
-         * the send event flag is set! ugh... (Enlighetenment for one,
-         * possibly MWM as well).  If we haven't been reparented yet
-         * this is just the WM shuffling us into position.  Ignore
-         * it!!!! or we wind up in a bogus location.
-         */
         int runningWM = XWM.getWMID();
         if (insLog.isLoggable(PlatformLogger.Level.FINE)) {
             insLog.fine("reparented={0}, visible={1}, WM={2}, decorations={3}",
                         isReparented(), isVisible(), runningWM, getDecorations());
         }
-        if (!isReparented() && isVisible() && runningWM != XWM.NO_WM
+        if (ENABLE_REPARENTING_CHECK && !isReparented() && isVisible() && runningWM != XWM.NO_WM
                 &&  !XWM.isNonReparentingWM()
                 && getDecorations() != XWindowAttributesData.AWT_DECOR_NONE) {
             insLog.fine("- visible but not reparented, skipping");

src/java.desktop/unix/classes/sun/awt/X11/XWindowPeer.java

@@ -52,6 +52,8 @@ import sun.awt.X11GraphicsEnvironment;
 import sun.java2d.pipe.Region;
 import sun.util.logging.PlatformLogger;
 
+import sun.security.action.GetPropertyAction;
+
 class XWindowPeer extends XPanelPeer implements WindowPeer,
                                                 DisplayChangedListener {
 
@@ -61,6 +63,9 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
     private static final PlatformLogger grabLog = PlatformLogger.getLogger("sun.awt.X11.grab.XWindowPeer");
     private static final PlatformLogger iconLog = PlatformLogger.getLogger("sun.awt.X11.icon.XWindowPeer");
 
+    static final boolean ENABLE_REPARENTING_CHECK
+            = "true".equals(GetPropertyAction.privilegedGetProperty("reparenting.check"));
+
     // should be synchronized on awtLock
     private static Set<XWindowPeer> windows = new HashSet<XWindowPeer>();
 
@@ -747,7 +752,8 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
 
         int runningWM = XWM.getWMID();
         Point newLocation = targetBounds.getLocation();
-        if (xe.get_send_event() || runningWM == XWM.NO_WM || XWM.isNonReparentingWM()) {
+        if (xe.get_send_event() ||
+                (ENABLE_REPARENTING_CHECK ? (runningWM == XWM.NO_WM || XWM.isNonReparentingWM()) : !isReparented())) {
             // Location, Client size + insets
             newLocation = new Point(scaleDown(xe.get_x()) - leftInset,
                                     scaleDown(xe.get_y()) - topInset);
@@ -1443,6 +1449,14 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
         isUnhiding |= isWMStateNetHidden();
 
         super.handleMapNotifyEvent(xev);
+
+        if (!ENABLE_REPARENTING_CHECK && delayedModalBlocking) {
+            // case of non-re-parenting WM
+            // (for a re-parenting WM this should have been already done on ReparentNotify processing)
+            addToTransientFors(AWTAccessor.getComponentAccessor().getPeer(modalBlocker));
+            delayedModalBlocking = false;
+        }
+
         if (isBeforeFirstMapNotify && !winAttr.initialFocus && shouldSuppressWmTakeFocus()) {
             suppressWmTakeFocus(false); // restore the protocol.
             if (!XWM.isKDE2()) {
@@ -1662,7 +1676,7 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
                     }
                     modalBlocker = d;
 
-                    if (isReparented() || XWM.isNonReparentingWM()) {
+                    if (isReparented() || ENABLE_REPARENTING_CHECK && XWM.isNonReparentingWM()) {
                         addToTransientFors(blockerPeer, javaToplevels);
                     } else {
                         delayedModalBlocking = true;
@@ -1673,7 +1687,7 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
                     }
                     modalBlocker = null;
 
-                    if (isReparented() || XWM.isNonReparentingWM()) {
+                    if (isReparented() || ENABLE_REPARENTING_CHECK && XWM.isNonReparentingWM()) {
                         removeFromTransientFors();
                     } else {
                         delayedModalBlocking = false;

src/java.desktop/windows/classes/sun/awt/windows/WWindowPeer.java

@@ -55,8 +55,11 @@ import java.awt.image.DataBufferInt;
 import java.awt.peer.WindowPeer;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Map;
 import java.util.concurrent.CopyOnWriteArrayList;
 
 import sun.awt.AWTAccessor;
@@ -991,31 +994,29 @@ public class WWindowPeer extends WPanelPeer implements WindowPeer,
         return err;
     }
 
-    private volatile List<Rectangle> customDecorHitTestSpots;
-    private volatile int customDecorTitleBarHeight = -1; // 0 can be a legal value when no title bar is expected
-
     // called from client via reflection
+    @Deprecated
     private void setCustomDecorationHitTestSpots(List<Rectangle> hitTestSpots) {
-        this.customDecorHitTestSpots = new CopyOnWriteArrayList<>(hitTestSpots);
+        List<Map.Entry<Shape, Integer>> spots = new ArrayList<>();
+        for (Rectangle spot : hitTestSpots) spots.add(Map.entry(spot, 1));
+        try {
+            Field f = Window.class.getDeclaredField("customDecorHitTestSpots");
+            f.setAccessible(true);
+            f.set(target, spots);
+        } catch (NoSuchFieldException | IllegalAccessException e) {
+            throw new Error(e);
+        }
     }
 
     // called from client via reflection
+    @Deprecated
     private void setCustomDecorationTitleBarHeight(int height) {
-        if (height >= 0) customDecorTitleBarHeight = height;
-    }
-
-    // called from native
-    private boolean hitTestCustomDecoration(int x, int y) {
-        List<Rectangle> spots = customDecorHitTestSpots;
-        if (spots == null) return false;
-        for (Rectangle spot : spots) {
-            if (spot.contains(x, y)) return true;
+        try {
+            Field f = Window.class.getDeclaredField("customDecorTitleBarHeight");
+            f.setAccessible(true);
+            f.set(target, height);
+        } catch (NoSuchFieldException | IllegalAccessException e) {
+            throw new Error(e);
         }
-        return false;
-    }
-
-    // called from native
-    private int getCustomDecorationTitleBarHeight() {
-        return customDecorTitleBarHeight;
     }
 }

src/java.desktop/windows/native/libawt/windows/awt_Component.cpp

@@ -1646,6 +1646,9 @@ LRESULT AwtComponent::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
       case WM_NCRBUTTONDOWN:
            mr = WmNcMouseDown(wParam, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam), RIGHT_BUTTON);
            break;
+        case WM_NCMOUSEMOVE:
+            mr = WmNcMouseMove(wParam, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
+            break;
       case WM_LBUTTONUP:
           if (ignoreNextLBTNUP) {
               ignoreNextLBTNUP = FALSE;
@@ -2330,6 +2333,9 @@ MsgRouting AwtComponent::WmNcMouseDown(WPARAM hitTest, int x, int y, int button)
 MsgRouting AwtComponent::WmNcMouseUp(WPARAM hitTest, int x, int y, int button) {
     return mrDoDefault;
 }
+MsgRouting AwtComponent::WmNcMouseMove(WPARAM hitTest, int x, int y) {
+    return mrDoDefault;
+}
 
 MsgRouting AwtComponent::WmWindowPosChanging(LPARAM windowPos) {
     return mrDoDefault;

src/java.desktop/windows/native/libawt/windows/awt_Component.h

@@ -525,6 +525,7 @@ public:
                                     int wheelRotation, BOOL isHorizontal);
     virtual MsgRouting WmNcMouseDown(WPARAM hitTest, int x, int y, int button);
     virtual MsgRouting WmNcMouseUp(WPARAM hitTest, int x, int y, int button);
+    virtual MsgRouting WmNcMouseMove(WPARAM hitTest, int x, int y);
     virtual MsgRouting WmWindowPosChanging(LPARAM windowPos);
     virtual MsgRouting WmWindowPosChanged(LPARAM windowPos);
     virtual void WmTouch(WPARAM wParam, LPARAM lParam);

src/java.desktop/windows/native/libawt/windows/awt_Frame.cpp

@@ -37,6 +37,7 @@
 #include <dwmapi.h>
 
 #include <java_lang_Integer.h>
+#include <java_awt_Window_CustomWindowDecoration.h>
 #include <sun_awt_windows_WEmbeddedFrame.h>
 #include <sun_awt_windows_WEmbeddedFramePeer.h>
 
@@ -622,6 +623,23 @@ MsgRouting AwtFrame::WmNcMouseDown(WPARAM hitTest, int x, int y, int button) {
     if (m_grabbedWindow != NULL/* && !m_grabbedWindow->IsOneOfOwnersOf(this)*/) {
         m_grabbedWindow->Ungrab();
     }
+    // For windows with custom decorations, handle caption-related mouse events
+    // Do not handle events from caption itself to preserve native drag behavior
+    if (HasCustomDecoration()) {
+        switch (hitTest) {
+            case HTMINBUTTON:
+            case HTMAXBUTTON:
+            case HTCLOSE:
+            case HTMENU:
+                RECT rcWindow;
+                GetWindowRect(GetHWnd(), &rcWindow);
+                WmMouseDown(GetButtonMK(button),
+                            x - rcWindow.left,
+                            y - rcWindow.top,
+                            button);
+                return mrConsume;
+        }
+    }
     if (!IsFocusableWindow() && (button & LEFT_BUTTON)) {
         switch (hitTest) {
         case HTTOP:
@@ -653,6 +671,24 @@ MsgRouting AwtFrame::WmNcMouseDown(WPARAM hitTest, int x, int y, int button) {
     return AwtWindow::WmNcMouseDown(hitTest, x, y, button);
 }
 
+MsgRouting AwtFrame::WmNcMouseMove(WPARAM hitTest, int x, int y) {
+    // For windows with custom decorations, handle caption-related mouse events
+    if (HasCustomDecoration()) {
+        switch (hitTest) {
+            case HTMINBUTTON:
+            case HTMAXBUTTON:
+            case HTCLOSE:
+            case HTMENU:
+            case HTCAPTION:
+                RECT rcWindow;
+                GetWindowRect(GetHWnd(), &rcWindow);
+                WmMouseMove(0, x - rcWindow.left, y - rcWindow.top);
+                if (hitTest != HTCAPTION) return mrConsume; // Preserve default window drag for HTCAPTION
+        }
+    }
+    return AwtWindow::WmNcMouseMove(hitTest, x, y);
+}
+
 // Override AwtWindow::Reshape() to handle minimized/maximized
 // frames (see 6525850, 4065534)
 void AwtFrame::Reshape(int x, int y, int w, int h)
@@ -1670,7 +1706,7 @@ BOOL AwtFrame::HasCustomDecoration()
     if (!m_pHasCustomDecoration) {
         m_pHasCustomDecoration = new BOOL;
         JNIEnv *env = (JNIEnv *) JNU_GetEnv(jvm, JNI_VERSION_1_2);
-        *m_pHasCustomDecoration = JNU_CallMethodByName(env, NULL, GetTarget(env), "hasCustomDecoration", "()Z").z;
+        *m_pHasCustomDecoration = JNU_GetFieldByName(env, NULL, GetTarget(env), "hasCustomDecoration", "Z").z;
     }
     return *m_pHasCustomDecoration;
 }
@@ -1712,10 +1748,8 @@ LRESULT HitTestNCA(AwtFrame* frame, int x, int y) {
     AdjustWindowRectEx(&rcFrame, WS_OVERLAPPEDWINDOW & ~WS_CAPTION, FALSE, NULL);
 
     JNIEnv *env = (JNIEnv *) JNU_GetEnv(jvm, JNI_VERSION_1_2);
-    int titleHeight = (int)JNU_CallMethodByName(env, NULL, frame->GetPeer(env),
-                                                "getCustomDecorationTitleBarHeight", "()I",
-                                                frame->ScaleDownX(x - rcWindow.left),
-                                                frame->ScaleDownY(y - rcWindow.top)).i;
+    int titleHeight = (int)JNU_GetFieldByName(env, NULL, frame->GetTarget(env),
+                                              "customDecorTitleBarHeight", "I").i;
     if (titleHeight >= 0) {
         titleHeight = frame->ScaleUpY(titleHeight);
         insets.top = titleHeight; // otherwise leave default
@@ -1728,12 +1762,23 @@ LRESULT HitTestNCA(AwtFrame* frame, int x, int y) {
     if (y >= rcWindow.top &&
         y < rcWindow.top + insets.top)
     {
-        if (JNU_CallMethodByName(env, NULL, frame->GetPeer(env),
-                                 "hitTestCustomDecoration", "(II)Z",
-                                 frame->ScaleDownX(x - rcWindow.left),
-                                 frame->ScaleDownY(y - rcWindow.top)).z)
-        {
-            return HTNOWHERE;
+        jint customSpot = JNU_CallMethodByName(env, NULL, frame->GetTarget(env),
+                                               "hitTestCustomDecoration", "(II)I",
+                                               frame->ScaleDownX(x - rcWindow.left),
+                                               frame->ScaleDownY(y - rcWindow.top)).i;
+        switch (customSpot) {
+            case java_awt_Window_CustomWindowDecoration_NO_HIT_SPOT:
+                break; // Nothing
+            case java_awt_Window_CustomWindowDecoration_MINIMIZE_BUTTON:
+                return HTMINBUTTON;
+            case java_awt_Window_CustomWindowDecoration_MAXIMIZE_BUTTON:
+                return HTMAXBUTTON;
+            case java_awt_Window_CustomWindowDecoration_CLOSE_BUTTON:
+                return HTCLOSE;
+            case java_awt_Window_CustomWindowDecoration_MENU_BAR:
+                return HTMENU;
+            default:
+                return HTNOWHERE;
         }
         fOnResizeBorder = (y < (rcWindow.top - rcFrame.top));
         uRow = 0;

src/java.desktop/windows/native/libawt/windows/awt_Frame.h

@@ -111,6 +111,7 @@ public:
     MsgRouting WmMouseMove(UINT flags, int x, int y);
     MsgRouting WmNcMouseDown(WPARAM hitTest, int x, int y, int button);
     MsgRouting WmNcMouseUp(WPARAM hitTest, int x, int y, int button);
+    MsgRouting WmNcMouseMove(WPARAM hitTest, int x, int y);
     MsgRouting WmGetIcon(WPARAM iconType, LRESULT& retVal);
     MsgRouting WmShowWindow(BOOL show, UINT status);
     MsgRouting WmWindowPosChanging(LPARAM windowPos);

src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/SystemModulesPlugin.java

@@ -60,6 +60,7 @@ import java.util.stream.Collectors;
 
 import jdk.internal.module.Checks;
 import jdk.internal.module.DefaultRoots;
+import jdk.internal.module.IllegalAccessMaps;
 import jdk.internal.module.Modules;
 import jdk.internal.module.ModuleHashes;
 import jdk.internal.module.ModuleInfo.Attributes;
@@ -621,6 +622,9 @@ public final class SystemModulesPlugin extends AbstractPlugin {
             // generate moduleReads
             genModuleReads(cw, cf);
 
+            // generate concealedPackagesToOpen and exportedPackagesToOpen
+            genXXXPackagesToOpenMethods(cw);
+
             return cw;
         }
 
@@ -851,6 +855,16 @@ public final class SystemModulesPlugin extends AbstractPlugin {
             generate(cw, "moduleReads", map, true);
         }
 
+        /**
+         * Generate concealedPackagesToOpen and exportedPackagesToOpen methods.
+         */
+        private void genXXXPackagesToOpenMethods(ClassWriter cw) {
+            ModuleFinder finder = finderOf(moduleInfos);
+            IllegalAccessMaps maps = IllegalAccessMaps.generate(finder);
+            generate(cw, "concealedPackagesToOpen", maps.concealedPackagesToOpen(), false);
+            generate(cw, "exportedPackagesToOpen", maps.exportedPackagesToOpen(), false);
+        }
+
         /**
          * Generate method to return {@code Map<String, Set<String>>}.
          *

src/jetbrains.api/src/com/jetbrains/CustomWindowDecoration.java

@@ -0,0 +1,117 @@
+/*
+ * Copyright 2000-2021 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jetbrains;
+
+import java.awt.*;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public interface CustomWindowDecoration {
+
+    /*CONST java.awt.Window.*_HIT_SPOT*/
+    /*CONST java.awt.Window.*_BUTTON*/
+    /*CONST java.awt.Window.MENU_BAR*/
+
+    void setCustomDecorationEnabled(Window window, boolean enabled);
+    boolean isCustomDecorationEnabled(Window window);
+
+    void setCustomDecorationHitTestSpots(Window window, List<Map.Entry<Shape, Integer>> spots);
+    List<Map.Entry<Shape, Integer>> getCustomDecorationHitTestSpots(Window window);
+
+    void setCustomDecorationTitleBarHeight(Window window, int height);
+    int getCustomDecorationTitleBarHeight(Window window);
+
+
+    @SuppressWarnings("all")
+    class __Fallback implements CustomWindowDecoration {
+
+        private final Method
+                hasCustomDecoration,
+                setHasCustomDecoration,
+                setCustomDecorationHitTestSpots,
+                setCustomDecorationTitleBarHeight;
+        private final Field peer;
+
+        __Fallback() throws Exception {
+            hasCustomDecoration = Window.class.getDeclaredMethod("hasCustomDecoration");
+            hasCustomDecoration.setAccessible(true);
+            setHasCustomDecoration = Window.class.getDeclaredMethod("setHasCustomDecoration");
+            setHasCustomDecoration.setAccessible(true);
+            Class<?> wpeer = Class.forName("sun.awt.windows.WWindowPeer");
+            setCustomDecorationHitTestSpots = wpeer.getDeclaredMethod("setCustomDecorationHitTestSpots", List.class);
+            setCustomDecorationHitTestSpots.setAccessible(true);
+            setCustomDecorationTitleBarHeight = wpeer.getDeclaredMethod("setCustomDecorationTitleBarHeight", int.class);
+            setCustomDecorationTitleBarHeight.setAccessible(true);
+            peer = Component.class.getDeclaredField("peer");
+            peer.setAccessible(true);
+        }
+
+        @Override
+        public void setCustomDecorationEnabled(Window window, boolean enabled) {
+            if (enabled) {
+                try {
+                    setHasCustomDecoration.invoke(window);
+                } catch (IllegalAccessException | InvocationTargetException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+
+        @Override
+        public boolean isCustomDecorationEnabled(Window window) {
+            try {
+                return (boolean) hasCustomDecoration.invoke(window);
+            } catch (IllegalAccessException | InvocationTargetException e) {
+                e.printStackTrace();
+                return false;
+            }
+        }
+
+        @Override
+        public void setCustomDecorationHitTestSpots(Window window, List<Map.Entry<Shape, Integer>> spots) {
+            List<Rectangle> hitTestSpots = spots.stream().map(e -> e.getKey().getBounds()).collect(Collectors.toList());
+            try {
+                setCustomDecorationHitTestSpots.invoke(peer.get(window), hitTestSpots);
+            } catch (IllegalAccessException | InvocationTargetException e) {
+                e.printStackTrace();
+            }
+        }
+
+        @Override
+        public List<Map.Entry<Shape, Integer>> getCustomDecorationHitTestSpots(Window window) {
+            return List.of();
+        }
+
+        @Override
+        public void setCustomDecorationTitleBarHeight(Window window, int height) {
+            try {
+                setCustomDecorationTitleBarHeight.invoke(peer.get(window), height);
+            } catch (IllegalAccessException | InvocationTargetException e) {
+                e.printStackTrace();
+            }
+        }
+
+        @Override
+        public int getCustomDecorationTitleBarHeight(Window window) {
+            return 0;
+        }
+    }
+}

src/jetbrains.api/src/com/jetbrains/JBR.java

@@ -66,6 +66,15 @@ public class JBR {
 
     private JBR() {}
 
+    private static <T> T getService(Class<T> interFace, FallbackSupplier<T> fallback) {
+        T service = getService(interFace);
+        try {
+            return service != null ? service : fallback != null ? fallback.get() : null;
+        } catch (Throwable ignore) {
+            return null;
+        }
+    }
+
     static <T> T getService(Class<T> interFace) {
         return api == null ? null : api.getService(interFace);
     }
@@ -94,6 +103,11 @@ public class JBR {
         <T> T getService(Class<T> interFace);
     }
 
+    @FunctionalInterface
+    private interface FallbackSupplier<T> {
+        T get() throws Throwable;
+    }
+
     // ========================== Generated metadata ==========================
 
     /**

src/jetbrains.api/tools/Gensrc.java

@@ -92,7 +92,7 @@ public class Gensrc {
     }
 
     private static String generate(String content) throws IOException {
-        Pattern pattern = compile("/\\*CONST ((?:[a-zA-Z0-9]+\\.)+)([a-zA-Z0-9_*]+)\s*\\*/");
+        Pattern pattern = compile("/\\*CONST ((?:[a-zA-Z0-9]+\\.)+)([a-zA-Z0-9_*]+)\\s*\\*/");
         for (;;) {
             Matcher matcher = pattern.matcher(content);
             if (!matcher.find()) return content;
@@ -102,15 +102,23 @@ public class Gensrc {
             for (Path module : modules.paths) {
                 Path f = module.resolve("share/classes").resolve(file);
                 if (Files.exists(f)) {
-                    Pattern namePattern = compile(name.replaceAll("\\*", "[a-zA-Z0-9_]+") + "\s*=");
-                    Pattern statementPattern = compile("((?:(?:public|protected|private|static|final)\s+){2,3})([a-zA-Z0-9]+)\s+([^;]+);");
+                    Pattern namePattern = compile(name.replaceAll("\\*", "\\\\w+"));
+                    Pattern statementPattern = compile(
+                            "((?:(?:MODS)  ){2,3})([a-zA-Z0-9]+)  (FIELD(?:, FIELD)*);"
+                                    .replaceAll("MODS", "public|protected|private|static|final")
+                                    .replaceAll("FIELD", "\\\\w+ = [\\\\w\"']+ ")
+                                    .replaceAll("  ", "\\\\s+")
+                                    .replaceAll(" ", "\\\\s*")
+                    );
                     Matcher statementMatcher = statementPattern.matcher(Files.readString(f));
                     while (statementMatcher.find()) {
                         String mods = statementMatcher.group(1);
                         if (!mods.contains("static") || !mods.contains("final")) continue;
                         for (String s : statementMatcher.group(3).split(",")) {
-                            if (!namePattern.matcher(s).find()) continue;
-                            statements.add("public static final " + statementMatcher.group(2) + " " + s.strip() + ";");
+                            s = s.strip();
+                            String nm = s.substring(0, s.indexOf('=')).strip();
+                            if (!namePattern.matcher(nm).matches()) continue;
+                            statements.add("public static final " + statementMatcher.group(2) + " " + s + ";");
                         }
                     }
                     break;
@@ -164,7 +172,7 @@ public class Gensrc {
         }
 
         private static Service[] findPublicServiceInterfaces() {
-            Pattern javadocPattern = Pattern.compile("/\\*\\*((?:.|\n)*?)(\s|\n)*\\*/");
+            Pattern javadocPattern = Pattern.compile("/\\*\\*((?:.|\n)*?)\\s*\\*/");
             return modules.services.stream()
                     .map(fullName -> {
                         if (fullName.indexOf('$') != -1) return null; // Only top level services can be public
@@ -186,7 +194,8 @@ public class Gensrc {
                                 javadocEnd = 0;
                             }
                             return new Service(name, javadoc,
-                                    content.substring(javadocEnd, indexOfDeclaration).contains("@Deprecated"));
+                                    content.substring(javadocEnd, indexOfDeclaration).contains("@Deprecated"),
+                                    content.contains("__Fallback"));
                         } catch (IOException e) {
                             throw new UncheckedIOException(e);
                         }
@@ -197,7 +206,7 @@ public class Gensrc {
         private static String generateMethodsForService(Service service) {
             return """
                     private static class $__Holder {<DEPRECATED>
-                        private static final $ INSTANCE = api != null ? api.getService($.class) : null;
+                        private static final $ INSTANCE = getService($.class, <FALLBACK>);
                     }
                     /**
                      * @return true if current runtime has implementation for all methods in {@link $}
@@ -214,12 +223,13 @@ public class Gensrc {
                         return $__Holder.INSTANCE;
                     }
                     """
+                    .replace("<FALLBACK>", service.hasFallback ? "$.__Fallback::new" : "null")
                     .replaceAll("\\$", service.name)
                     .replace("<JAVADOC>", service.javadoc)
                     .replaceAll("<DEPRECATED>", service.deprecated ? "\n@Deprecated" : "");
         }
 
-        private record Service(String name, String javadoc, boolean deprecated) {}
+        private record Service(String name, String javadoc, boolean deprecated, boolean hasFallback) {}
     }
 
     /**
@@ -240,7 +250,7 @@ public class Gensrc {
         }
 
         private void findInModule(String content) {
-            Pattern servicePattern = compile("(service|proxy|twoWayProxy)\s*\\(([^)]+)");
+            Pattern servicePattern = compile("(service|proxy|twoWayProxy)\\s*\\(([^)]+)");
             Matcher matcher = servicePattern.matcher(content);
             while (matcher.find()) {
                 String type = matcher.group(1);

src/jetbrains.api/version.properties

@@ -6,9 +6,9 @@
 # 2. When only new API is added, or some existing API was @Deprecated - increment MINOR, reset PATCH to 0
 # 3. For major backwards incompatible API changes - increment MAJOR, reset MINOR and PATCH to 0
 
-VERSION = 0.0.2
+VERSION = 0.0.4
 
 # Hash is used to track changes to jetbrains.api, so you would not forget to update version when needed.
 # When you make any changes, "make jbr-api" will fail and ask you to update hash and version number here.
 
-HASH = 814F29888E5EB6C23DF27B53636E9F94
+HASH = 74417FA361EA554F9C90873A3FF354

test/jdk/jb/build/CheckJBRModules.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright 2022 JetBrains s.r.o.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+
+/**
+ * @test
+ * @requires !vm.graal.enabled
+ * @summary Verifies the list of available modules
+ * @library /test/lib
+ * @run main CheckJBRModules
+ */
+public class CheckJBRModules {
+    static final String moduleNames[] = {
+                    "java.base",
+                    "java.compiler",
+                    "java.datatransfer",
+                    "java.desktop",
+                    "java.instrument",
+                    "java.logging",
+                    "java.management",
+                    "java.management.rmi",
+                    "java.naming",
+                    "java.net.http",
+                    "java.prefs",
+                    "java.rmi",
+                    "java.scripting",
+                    "java.se",
+                    "java.security.jgss",
+                    "java.security.sasl",
+                    "java.smartcardio",
+                    "java.sql",
+                    "java.sql.rowset",
+                    "java.transaction.xa",
+                    "java.xml",
+                    "java.xml.crypto",
+                    "jdk.accessibility",
+                    "jdk.attach",
+                    "jdk.charsets",
+                    "jdk.compiler",
+                    "jdk.crypto.cryptoki",
+                    "jdk.crypto.ec",
+                    "jdk.dynalink",
+                    "jdk.httpserver",
+                    "jdk.internal.ed",
+                    "jdk.internal.le",
+                    "jdk.internal.vm.ci",
+                    "jdk.javadoc",
+                    "jdk.jdi",
+                    "jdk.jdwp.agent",
+                    "jdk.jfr",
+                    "jdk.jsobject",
+                    "jdk.localedata",
+                    "jdk.management",
+                    "jdk.management.agent",
+                    "jdk.management.jfr",
+                    "jdk.naming.dns",
+                    "jdk.naming.rmi",
+                    "jdk.net",
+                    "jdk.sctp",
+                    "jdk.security.auth",
+                    "jdk.security.jgss",
+                    "jdk.unsupported",
+                    "jdk.unsupported.desktop",
+                    "jdk.xml.dom",
+                    "jdk.zipfs",
+                    "jdk.hotspot.agent",
+                    "jdk.jcmd" };
+
+    public static void main(String args[]) throws Exception {
+        final OutputAnalyzer oa = exec("--list-modules").shouldHaveExitValue(0);
+        for(String moduleName : moduleNames) {
+            oa.shouldContain(moduleName);
+        }
+    }
+
+    /**
+     * java args... returning the OutputAnalyzer to analyzer the output
+     */
+    private static OutputAnalyzer exec(String... args) throws Exception {
+        return ProcessTools.executeTestJava(args)
+                .outputTo(System.out)
+                .errorTo(System.out);
+    }
+}

test/jdk/jb/build/CheckJBRModulesWindows.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 JetBrains s.r.o.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+
+/**
+ * @test
+ * @requires !vm.graal.enabled
+ * @requires (os.family == "windows")
+ * @summary Verifies the list of available modules specific to Windows
+ * @library /test/lib
+ * @run main CheckJBRModulesWindows
+ */
+public class CheckJBRModulesWindows {
+    static final String moduleNames[] = { "jdk.crypto.mscapi" };
+
+    public static void main(String args[]) throws Exception {
+        final OutputAnalyzer oa = exec("--list-modules").shouldHaveExitValue(0);
+        for(String moduleName : moduleNames) {
+            oa.shouldContain(moduleName);
+        }
+    }
+
+    /**
+     * java args... returning the OutputAnalyzer to analyzer the output
+     */
+    private static OutputAnalyzer exec(String... args) throws Exception {
+        return ProcessTools.executeTestJava(args)
+                .outputTo(System.out)
+                .errorTo(System.out);
+    }
+}

test/jdk/jb/java/api/backend/ProxyInfoResolvingTest.java

@@ -35,13 +35,13 @@ public class ProxyInfoResolvingTest {
         JBRApi.ModuleRegistry r = init();
         // No mapping defined -> null
         requireNull(getProxy(ProxyInfoResolvingTest.class));
-        // Invalid JBR-side target class -> error
+        // Invalid JBR-side target class -> null
         r.proxy(InterfaceWithoutImplementation.class.getName(), "absentImpl");
-        mustFail(() -> getProxy(InterfaceWithoutImplementation.class), RuntimeException.class, ClassNotFoundException.class);
-        // Invalid JBR-side target static method mapping -> error
+        requireNull(getProxy(InterfaceWithoutImplementation.class));
+        // Invalid JBR-side target static method mapping -> null
         r.service(ServiceWithoutImplementation.class.getName(), null)
                 .withStatic("someMethod", "NoClass");
-        mustFail(() -> getProxy(ServiceWithoutImplementation.class), RuntimeException.class, ClassNotFoundException.class);
+        requireNull(getProxy(ServiceWithoutImplementation.class));
         // Service without target class or static method mapping -> null
         r.service(EmptyService.class.getName(), null);
         requireNull(getProxy(EmptyService.class));

test/jdk/jb/java/awt/Focus/MacSpecialFocusLostCase.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2022 JetBrains s.r.o.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.KeyEvent;
+
+/**
+ * @test
+ * @summary Regression test for JBR-4281 Window losing focus isn't detected in some cases on macOS
+ * @key headful
+ * @requires (os.family == "mac")
+ */
+
+public class MacSpecialFocusLostCase {
+    private static Robot robot;
+    private static JFrame frame;
+
+    public static void main(String[] args) throws Exception {
+        robot = new Robot();
+        robot.setAutoDelay(50);
+        try {
+            SwingUtilities.invokeAndWait(MacSpecialFocusLostCase::initUI);
+            checkFocusedStatus(true);
+            pressCmdSpace(); // open Spotlight popup
+            checkFocusedStatus(false);
+            pressEsc(); // close Spotlight popup
+            checkFocusedStatus(true);
+        } finally {
+            pressEsc(); // make sure popup is closed in any case
+            SwingUtilities.invokeAndWait(MacSpecialFocusLostCase::disposeUI);
+        }
+    }
+
+    private static void initUI() {
+        frame = new JFrame("MacSpecialFocusLostCase");
+        frame.setBounds(200, 200, 300, 200);
+        frame.setVisible(true);
+    }
+
+    private static void disposeUI() {
+        if (frame != null) frame.dispose();
+    }
+
+    private static void checkFocusedStatus(boolean expected) throws Exception {
+        robot.delay(1000);
+        boolean[] result = new boolean[1];
+        SwingUtilities.invokeAndWait(() -> result[0] = frame.isFocused());
+        if (result[0] != expected) {
+            throw new RuntimeException(expected ? "Frame isn't focused" : "Frame is still focused");
+        }
+    }
+
+    private static void pressCmdSpace() {
+        robot.keyPress(KeyEvent.VK_META);
+        robot.keyPress(KeyEvent.VK_SPACE);
+        robot.keyRelease(KeyEvent.VK_SPACE);
+        robot.keyRelease(KeyEvent.VK_META);
+    }
+
+    private static void pressEsc() {
+        robot.keyPress(KeyEvent.VK_ESCAPE);
+        robot.keyRelease(KeyEvent.VK_ESCAPE);
+    }
+}

test/jdk/jb/java/awt/Toolkit/AWTThreadingTest.java

@@ -1,7 +1,7 @@
 import java.awt.*;
+import javax.swing.*;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
-import java.util.concurrent.Callable;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -9,11 +9,9 @@ import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.locks.Condition;
 import java.util.concurrent.locks.ReentrantLock;
 
-import sun.awt.InvokeOnToolkitHelper;
 import sun.lwawt.macosx.CThreading;
 import sun.lwawt.macosx.LWCToolkit;
-
-import javax.swing.*;
+import sun.awt.AWTThreading;
 
 /*
  * @test
@@ -50,6 +48,7 @@ public class AWTThreadingTest {
 
     static void runGui() {
         frame = new JFrame("frame");
+        frame.getContentPane().setBackground(Color.green);
         frame.setLocationRelativeTo(null);
         frame.setSize(200, 200);
         frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
@@ -88,7 +87,7 @@ public class AWTThreadingTest {
                 EventQueue.invokeLater(() -> {
                     passed.set(false);
 
-                    Boolean success = InvokeOnToolkitHelper.invokeAndBlock(() -> {
+                    Boolean success = AWTThreading.executeWaitToolkit(() -> {
                         try {
                             return CThreading.executeOnAppKit(() -> Boolean.TRUE);
                         } catch (Throwable e) {

test/jdk/jb/java/awt/Toolkit/LWCToolkitInvokeAndWaitTest.java

@@ -0,0 +1,229 @@
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.InvocationEvent;
+import java.util.Optional;
+import java.util.concurrent.*;
+import java.util.function.Consumer;
+import java.util.logging.*;
+
+import sun.awt.AWTAccessor;
+import sun.awt.AWTThreading;
+import sun.lwawt.macosx.CThreading;
+import sun.lwawt.macosx.LWCToolkit;
+
+/*
+ * @test
+ * @summary Tests different scenarios for LWCToolkit.invokeAndWait().
+ * @requires (os.family == "mac")
+ * @modules java.desktop/sun.lwawt.macosx java.desktop/sun.awt
+ * @run main LWCToolkitInvokeAndWaitTest
+ * @run main/othervm -DAWTThreading.level.FINER=true LWCToolkitInvokeAndWaitTest
+ * @author Anton Tarasov
+ */
+@SuppressWarnings("ConstantConditions")
+public class LWCToolkitInvokeAndWaitTest {
+    // This property is used in {CAccessibility}
+    private static final int INVOKE_TIMEOUT_SECONDS = Integer.getInteger("sun.lwawt.macosx.CAccessibility.invokeTimeoutSeconds", 1);
+
+    static TestLogHandler LOG_HANDLER = new TestLogHandler();
+    static volatile CompletableFuture<Boolean> FUTURE;
+    static volatile CountDownLatch EDT_FAST_FREE_LATCH;
+    static volatile JFrame FRAME;
+    static volatile Thread MAIN_THREAD;
+    static int TEST_COUNTER;
+
+    static final Runnable CONSUME_DISPATCHING = () -> FUTURE.completeExceptionally(new Throwable("Unexpected dispatching!"));
+
+    static {
+        AWTThreading.setAWTThreadingFactory(edt -> new AWTThreading(edt) {
+            @Override
+            public CompletableFuture<Void> onEventDispatchThreadFree(Runnable runnable) {
+                if (EDT_FAST_FREE_LATCH != null) {
+                    // 1. wait for the invocation event to be dispatched
+                    // 2. wait for EDT to become free
+                    trycatch(() -> EDT_FAST_FREE_LATCH.await());
+
+                    EDT_FAST_FREE_LATCH = null;
+                }
+                // if EDT is free the runnable should be called immediately
+                return super.onEventDispatchThreadFree(runnable);
+            }
+            @Override
+            public void notifyEventDispatchThreadFree() {
+                if (EDT_FAST_FREE_LATCH != null &&
+                    // if the invocation event is dispatched by now
+                    EDT_FAST_FREE_LATCH.getCount() == 1)
+                {
+                    EDT_FAST_FREE_LATCH.countDown();
+                }
+                super.notifyEventDispatchThreadFree();
+            }
+        });
+    }
+
+    public static void main(String[] args) {
+        MAIN_THREAD = Thread.currentThread();
+
+        trycatch(() -> {
+            Logger log = LogManager.getLogManager().getLogger(AWTThreading.class.getName());
+            log.setUseParentHandlers(false);
+            log.addHandler(LOG_HANDLER);
+            if (Boolean.getBoolean("AWTThreading.level.FINER")) {
+                log.setLevel(Level.FINER);
+            }
+        });
+
+        Consumer<InvocationEvent> noop = e -> {};
+
+        try {
+            trycatch(() -> EventQueue.invokeAndWait(LWCToolkitInvokeAndWaitTest::runGui));
+
+            test("InvocationEvent is normally dispatched",
+                "",
+                noop,
+                () -> System.out.println("I'm dispatched"));
+
+            test("InvocationEvent is lost",
+                "lost",
+                noop,
+                CONSUME_DISPATCHING);
+
+            EDT_FAST_FREE_LATCH = new CountDownLatch(2);
+            test("InvocationEvent is lost (EDT becomes fast free)",
+                "lost",
+                // notify the invocationEvent has been dispatched
+                invocationEvent -> EDT_FAST_FREE_LATCH.countDown(),
+                CONSUME_DISPATCHING);
+
+            test("InvocationEvent is disposed",
+                "disposed",
+                invocationEvent -> AWTAccessor.getInvocationEventAccessor().dispose(invocationEvent),
+                CONSUME_DISPATCHING);
+
+            test("InvocationEvent is timed out (delayed before dispatching)",
+                "timed out",
+                invocationEvent -> sleep(INVOKE_TIMEOUT_SECONDS * 4),
+                CONSUME_DISPATCHING);
+
+            test("InvocationEvent is timed out (delayed during dispatching)",
+                "timed out",
+                noop,
+                () -> sleep(INVOKE_TIMEOUT_SECONDS * 4));
+
+        } finally {
+            FRAME.dispose();
+        }
+        System.out.println("Test PASSED");
+    }
+
+    static void runGui() {
+        FRAME = new JFrame(LWCToolkitInvokeAndWaitTest.class.getSimpleName());
+        FRAME.getContentPane().setBackground(Color.green);
+        FRAME.setLocationRelativeTo(null);
+        FRAME.setSize(200, 200);
+        FRAME.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+        FRAME.setVisible(true);
+    }
+
+    static void test(String testCaption,
+                     String expectedInLog,
+                     Consumer<InvocationEvent> onBeforeDispatching,
+                     Runnable onDispatching)
+    {
+        System.out.println("\n(" + (++TEST_COUNTER) + ") TEST: " + testCaption);
+
+        FUTURE = new CompletableFuture<>();
+        FUTURE.whenComplete((r, ex) -> Optional.of(ex).ifPresent(Throwable::printStackTrace));
+
+        EventQueue.invokeLater(() -> subTest(onBeforeDispatching, onDispatching));
+
+        trycatch(() -> {
+            if (!FUTURE.get(INVOKE_TIMEOUT_SECONDS * 2L, TimeUnit.SECONDS)) {
+                throw new RuntimeException("Test FAILED! (negative result)");
+            }
+        });
+
+        // let AppKit and EDT print all the logging
+        var latch = new CountDownLatch(1);
+        CThreading.executeOnAppKit(latch::countDown);
+        trycatch(latch::await);
+        trycatch(() -> EventQueue.invokeAndWait(() -> {}));
+
+        if (!LOG_HANDLER.testContains(expectedInLog)) {
+            throw new RuntimeException("Test FAILED! (not found in the log: \"" + expectedInLog + "\")");
+        }
+
+        System.out.println("(" + TEST_COUNTER + ") SUCCEEDED\n");
+    }
+
+    static void subTest(Consumer<InvocationEvent> onBeforeDispatching, Runnable onDispatching) {
+        Toolkit.getDefaultToolkit().getSystemEventQueue().push(new EventQueue() {
+            @Override
+            protected void dispatchEvent(AWTEvent event) {
+                //
+                // Intercept the invocation posted from Appkit.
+                //
+                if (event instanceof AWTThreading.TrackedInvocationEvent) {
+                    System.out.println("Before dispatching: " + event);
+                    onBeforeDispatching.accept((InvocationEvent)event);
+
+                    if (onDispatching == CONSUME_DISPATCHING) {
+                        System.out.println("Consuming: " + event);
+                        return;
+                    }
+                }
+                super.dispatchEvent(event);
+            }
+        });
+        CThreading.executeOnAppKit(() -> trycatch(() -> {
+            //
+            // Post an invocation from AppKit.
+            //
+            LWCToolkit.invokeAndWait(onDispatching, FRAME, false, INVOKE_TIMEOUT_SECONDS);
+            FUTURE.complete(true);
+        }));
+    }
+
+    static void sleep(int seconds) {
+        trycatch(() -> Thread.sleep(seconds * 1000L));
+    }
+    
+    static void trycatch(ThrowableRunnable runnable) {
+        try {
+            runnable.run();
+        } catch (Exception e) {
+            if (Thread.currentThread() == MAIN_THREAD) {
+                throw new RuntimeException("Test FAILED!", e);
+            } else {
+                FUTURE.completeExceptionally(e);
+            }
+        }
+    }
+    
+    interface ThrowableRunnable {
+        void run() throws Exception;
+    }
+
+    static class TestLogHandler extends StreamHandler {
+        public StringBuilder buffer = new StringBuilder();
+
+        public TestLogHandler() {
+            // Use System.out to merge with the test printing.
+            super(System.out, new SimpleFormatter());
+            setLevel(Level.ALL);
+        }
+
+        @Override
+        public void publish(LogRecord record) {
+            buffer.append(record.getMessage());
+            super.publish(record);
+            flush();
+        }
+
+        public boolean testContains(String str) {
+            boolean contains = buffer.toString().contains(str);
+            buffer.setLength(0);
+            return contains;
+        }
+    }
+}

test/jdk/jb/tools/launcher/modules/illegalaccess/JbrIllegalAccessTest.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8266851
+ * @library /test/lib
+ * @build JbrIllegalAccessTest
+ * @run testng JbrIllegalAccessTest
+ * @summary Make sure that --jbr-illegal-access is working.
+ */
+
+import jdk.test.lib.process.*;
+import org.testng.annotations.*;
+
+/**
+ * Make sure that --jbr-illegal-access is working as expected.
+ */
+
+@Test
+public class JbrIllegalAccessTest {
+
+    void run(String text, String... vmopts)
+        throws Exception
+    {
+        var outputAnalyzer = ProcessTools
+            .executeTestJava(vmopts)
+            .outputTo(System.out)
+            .errorTo(System.out);
+        outputAnalyzer.shouldContain(text);
+    }
+
+    public void testObsolete() throws Exception {
+        run("Option --jbr-illegal-access is deprecated",
+            "-XX:-IgnoreUnrecognizedVMOptions",
+            "--jbr-illegal-access", "--version");
+    }
+
+}

test/jdk/jbProblemList.txt

@@ -733,6 +733,7 @@ javax/sound/midi/Sequencer/MetaCallback.java 8178698 linux-all
 # jdk_swing
 
 javax/swing/plaf/basic/BasicComboPopup/JComboBoxPopupLocation/JComboBoxPopupLocation.java 8194945 macosx-all
+javax/swing/plaf/basic/BasicMenuUI/4983388/bug4983388.java 8253184 windows-all
 javax/swing/plaf/basic/BasicTextUI/8001470/bug8001470.java 8233177 linux-all,windows-all
 
 javax/swing/border/TestTitledBorderLeak.java 8213531 linux-all,windows-all
@@ -937,5 +938,5 @@ com/sun/java/swing/plaf/windows/AltFocusIssueTest.java
 java/awt/event/MouseEvent/AltGraphModifierTest/AltGraphModifierTest.java            JBR-4207 windows-all
 jb/java/awt/keyboard/AltGrMustGenerateAltGrModifierTest4207.java                    JBR-4207 windows-all
 
-java/awt/Dialog/NonResizableDialogSysMenuResize/NonResizableDialogSysMenuResize.java TBD windows-all
-java/awt/Dialog/NestedDialogs/Modeless/NestedModelessDialogTest.java                 TBD windows-all
+java/awt/Dialog/NonResizableDialogSysMenuResize/NonResizableDialogSysMenuResize.java JBR-4250 windows-all
+java/awt/Dialog/NestedDialogs/Modeless/NestedModelessDialogTest.java                 JBR-4250 windows-all

test/jdk/jbScale2ProblemList.txt

@@ -1,3 +1,4 @@
 java/awt/dnd/DragInterceptorAppletTest/DragInterceptorAppletTest.java               JBR-890  generic-all
 java/awt/dnd/FileListBetweenJVMsTest/FileListBetweenJVMsTest.java                   JBR-1011 generic-all
-java/awt/SplashScreen/MultiResolutionSplash/MultiResolutionSplashTest.java          8279190 linux-all,windows-all,macosx-all
+java/awt/SplashScreen/MultiResolutionSplash/MultiResolutionSplashTest.java          8279190 linux-all,windows-all,macosx-all
+java/awt/Mouse/GetMousePositionTest/GetMousePositionWithPopup.java                  8282232 windows-all