[GR-39165] [GR-39648] More java.lang.Thread fixes for Native Image on JDK 19

common.json

@@ -23,17 +23,7 @@
     "labsjdk-ce-19-llvm": {"name": "labsjdk",   "version": "ce-19+27-jvmci-22.3-b01-sulong", "platformspecific": true },
     "labsjdk-ee-19":      {"name": "labsjdk",   "version": "ee-19.0.1+0-jvmci-22.3-b01", "platformspecific": true },
     "labsjdk-ee-19Debug": {"name": "labsjdk",   "version": "ee-19.0.1+0-jvmci-22.3-b01-debug", "platformspecific": true },
-    "labsjdk-ee-19-llvm": {"name": "labsjdk",   "version": "ee-19.0.1+0-jvmci-22.3-b01-sulong", "platformspecific": true },
-
-    "jdk-19-ea": {
-      "build_id": "jdk-19+28",
-      "name": "jpg-jdk",
-      "version": "19",
-      "extrabundles": [
-        "static_libs"
-      ],
-      "platformspecific": true
-    }
+    "labsjdk-ee-19-llvm": {"name": "labsjdk",   "version": "ee-19.0.1+0-jvmci-22.3-b01-sulong", "platformspecific": true }
   },
 
   "COMMENT.devkits" : "The devkits versions reflect those used to build the JVMCI JDKs (e.g., see devkit_platform_revisions in <jdk>/make/conf/jib-profiles.js)",

common.jsonnet

@@ -1,12 +1,41 @@
-{
-  local composable = (import "common-utils.libsonnet").composable,
+local composable = (import "common-utils.libsonnet").composable;
+
+local mx_version = (import "graal-common.json").mx_version;
+local common_json = composable(import "common.json");
+local repo_config = import 'repo-configuration.libsonnet';
+local jdks = common_json.jdks;
+local deps = common_json.deps;
+local downloads = common_json.downloads;
+
+# Finds the first integer in a string and returns it as an integer.
+local find_first_integer(versionString) =
+  local charToInt(c) =
+    std.codepoint(c) - std.codepoint("0");
+  local firstNum(s, i) =
+    assert std.length(s) > i : "No number found in string " + s;
+    local n = charToInt(s[i]);
+    if n >=0 && n < 10 then i else firstNum(s, i + 1);
+  local lastNum(s, i) =
+    if i >= std.length(s) then
+      i
+    else
+      local n = charToInt(s[i]);
+      if n < 0 || n > 9 then i else lastNum(s, i + 1);
+  local versionIndexStart = firstNum(versionString, 0);
+  local versionIndexEnd = lastNum(versionString, versionIndexStart);
+  std.parseInt(versionString[versionIndexStart:versionIndexEnd])
+;
+# jdk_version is an hidden field that can be used to generate job names
+local add_jdk_version(name) =
+  local jdk = jdks[name];
+  // this assumes that the version is the first number in the jdk.version string
+  local version = find_first_integer(jdk.version);
+  // santity check that the parsed version is also included in the name
+  assert std.length(std.findSubstr(std.toString(version), name)) == 1 : "Cannot find version %d in name %s" % [version, name];
+  { jdk_version:: version}
+;
 
-  local mx_version = (import "graal-common.json").mx_version,
-  local common_json = composable(import "common.json"),
-  local repo_config = import 'repo-configuration.libsonnet',
-  local jdks = common_json.jdks,
-  local deps = common_json.deps,
-  local downloads = common_json.downloads,
+{
 
   mx:: {
     packages+: {
@@ -74,36 +103,17 @@
     }
   },
 
+} + {
   // JDK definitions
   // ***************
-  # jdk_version is an hidden field that can be used to generate job names
-  local jdk11 =          { jdk_version:: 11},
-  local jdk17 =          { jdk_version:: 17},
-  local jdk19 =          { jdk_version:: 19},
-
-  oraclejdk11::          jdk11 + { downloads+: { JAVA_HOME : jdks.oraclejdk11 }},
-  oraclejdk17::          jdk17 + { downloads+: { JAVA_HOME : jdks.oraclejdk17 }},
-  openjdk11::            jdk11 + { downloads+: { JAVA_HOME : jdks.openjdk11 }},
-
-  "labsjdk-ce-11"::      jdk11 + { downloads+: { JAVA_HOME : jdks["labsjdk-ce-11"] }},
-  "labsjdk-ee-11"::      jdk11 + { downloads+: { JAVA_HOME : jdks["labsjdk-ee-11"] }},
-  "labsjdk-ce-17"::      jdk17 + { downloads+: { JAVA_HOME : jdks["labsjdk-ce-17"] }},
-  "labsjdk-ee-17"::      jdk17 + { downloads+: { JAVA_HOME : jdks["labsjdk-ee-17"] }},
-  "labsjdk-ce-17Debug":: jdk17 + { downloads+: { JAVA_HOME : jdks["labsjdk-ce-17Debug"] }},
-  "labsjdk-ee-17Debug":: jdk17 + { downloads+: { JAVA_HOME : jdks["labsjdk-ee-17Debug"] }},
-  "labsjdk-ce-11-llvm":: jdk11 + { downloads+: { LLVM_JAVA_HOME : jdks["labsjdk-ce-11-llvm"] }},
-  "labsjdk-ee-11-llvm":: jdk11 + { downloads+: { LLVM_JAVA_HOME : jdks["labsjdk-ee-11-llvm"] }},
-  "labsjdk-ce-17-llvm":: jdk17 + { downloads+: { LLVM_JAVA_HOME : jdks["labsjdk-ce-17-llvm"] }},
-  "labsjdk-ee-17-llvm":: jdk17 + { downloads+: { LLVM_JAVA_HOME : jdks["labsjdk-ee-17-llvm"] }},
-
-  "labsjdk-ce-19"::      jdk19 + { downloads+: { JAVA_HOME : jdks["jdk-19-ea"] + { open: false} }},
-  "labsjdk-ee-19"::      jdk19 + { downloads+: { JAVA_HOME : jdks["jdk-19-ea"] + { open: false} }},
-
+  // this adds all jdks from common.json
+  [name]: add_jdk_version(name) + { downloads+: { [if std.endsWith(name, "llvm") then "LLVM_JAVA_HOME" else "JAVA_HOME"] : jdks[name] }},
+  for name in std.objectFieldsAll(jdks)
+} + {
   # Aliases to edition specific labsjdks
   labsjdk11::            self["labsjdk-" + repo_config.graalvm_edition + "-11"],
   labsjdk17::            self["labsjdk-" + repo_config.graalvm_edition + "-17"],
   labsjdk19::            self["labsjdk-" + repo_config.graalvm_edition + "-19"],
-  labsjdk11Debug::       self["labsjdk-" + repo_config.graalvm_edition + "-11Debug"],
   labsjdk17Debug::       self["labsjdk-" + repo_config.graalvm_edition + "-17Debug"],
   labsjdk11LLVM::        self["labsjdk-" + repo_config.graalvm_edition + "-11-llvm"],
   labsjdk17LLVM::        self["labsjdk-" + repo_config.graalvm_edition + "-17-llvm"],

substratevm/ci.jsonnet

@@ -80,14 +80,7 @@
     linux_amd64_jdk11 + gate("build-ce", "build,checkstubs,helloworld,test,nativeimagehelp,muslcbuild,debuginfotest") + maven + svm_unittest + t("35:00") + musl_toolchain + gdb("10.2"),
     linux_amd64_jdk11 + gate("modules-basic", "build,hellomodule,test") + maven + svm_unittest + t("30:00"),
     linux_amd64_jdk17 + gate("style-fullbuild", "style,fullbuild,helloworld,test,svmjunit,debuginfotest") + common.eclipse + common.jdt + maven + jsonschema + svm_unittest + t("50:00") + mx_build_exploded + gdb("10.2"),
-    linux_amd64_jdk19 + gate("build-ce", "build") + {
-      run: [
-        # cannot yet use mx gate --tag build due to compile errors in /compiler
-        ["mx", "build"],
-        # cannot yet use mx gate --tag hello world due to missing JFR support in JDK 19
-        ["mx", "helloworld"],
-      ]
-    } + maven + svm_unittest + t("35:00"),
+    linux_amd64_jdk19 + gate("build-ce", "build,helloworld") + maven + svm_unittest + t("35:00"),
     windows_jdk17     + gate("basics", "build,helloworld,test,svmjunit") + svm_unittest + t("1:30:00"),
     windows_jdk17     + gate("basics-quickbuild", "build,helloworld_quickbuild,test_quickbuild,svmjunit_quickbuild") + svm_unittest + t("1:30:00"),
   ],

substratevm/mx.substratevm/mx_substratevm.py

@@ -322,7 +322,9 @@ def image_demo_task(extra_image_args=None, flightrecorder=True):
     javac_command = ['--javac-command', ' '.join(javac_image_command(svmbuild_dir()))]
     helloworld(image_args + javac_command)
     helloworld(image_args + ['--shared'])  # Build and run helloworld as shared library
-    if not mx.is_windows() and flightrecorder:
+    # JFR is currently not supported on JDK 19 [GR-39564] [GR-39642]
+    is_jdk_version_supported = mx.get_jdk().version < mx.VersionSpec("19")
+    if is_jdk_version_supported and not mx.is_windows() and flightrecorder:
         helloworld(image_args + ['-J-XX:StartFlightRecording=dumponexit=true'])  # Build and run helloworld with FlightRecorder at image build time
     cinterfacetutorial(extra_image_args)
     clinittest([])

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jfr/JfrFeature.java

@@ -27,6 +27,7 @@
 import java.util.Collections;
 import java.util.List;
 
+import org.graalvm.compiler.serviceprovider.JavaVersionUtil;
 import org.graalvm.nativeimage.ImageSingletons;
 import org.graalvm.nativeimage.Platform;
 import org.graalvm.nativeimage.hosted.Feature;
@@ -106,6 +107,11 @@ public boolean isInConfiguration(IsInConfigurationAccess access) {
     }
 
     public static boolean isInConfiguration(boolean allowPrinting) {
+        boolean javaVersionSupported = JavaVersionUtil.JAVA_SPEC < 19;
+        if (HOSTED_ENABLED && !javaVersionSupported) {
+            // [GR-39564] [GR-39642]
+            throw UserError.abort("FlightRecorder is currently not supported in JDK 19.");
+        }
         boolean systemSupported = osSupported();
         if (HOSTED_ENABLED && !systemSupported) {
             throw UserError.abort("FlightRecorder cannot be used to profile the image generator on this platform. " +
@@ -119,7 +125,7 @@ public static boolean isInConfiguration(boolean allowPrinting) {
             }
             runtimeEnabled = true;
         }
-        return runtimeEnabled && systemSupported;
+        return javaVersionSupported && runtimeEnabled && systemSupported;
     }
 
     private static boolean osSupported() {

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/thread/PlatformThreads.java

@@ -750,6 +750,12 @@ static Map<Thread, StackTraceElement[]> getAllStackTraces() {
         return vmOp.result;
     }
 
+    static Thread[] getAllThreads() {
+        GetAllThreadsOperation vmOp = new GetAllThreadsOperation();
+        vmOp.enqueue();
+        return vmOp.result.toArray(new Thread[0]);
+    }
+
     @NeverInline("Starting a stack walk in the caller frame")
     private static StackTraceElement[] getStackTrace(IsolateThread thread) {
         if (thread == CurrentIsolate.getCurrentThread()) {
@@ -943,6 +949,22 @@ protected void operate() {
         }
     }
 
+    private static class GetAllThreadsOperation extends JavaVMOperation {
+        private final ArrayList<Thread> result;
+
+        GetAllThreadsOperation() {
+            super(VMOperationInfos.get(GetAllThreadsOperation.class, "Get all threads", SystemEffect.SAFEPOINT));
+            result = new ArrayList<>();
+        }
+
+        @Override
+        protected void operate() {
+            for (IsolateThread cur = VMThreads.firstThread(); cur.isNonNull(); cur = VMThreads.nextThread(cur)) {
+                result.add(PlatformThreads.fromVMThread(cur));
+            }
+        }
+    }
+
     /**
      * Builds a list of all application threads. This must be done in a VM operation because only
      * there we are allowed to allocate Java memory while holding the {@link VMThreads#THREAD_MUTEX}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/thread/Target_java_lang_Thread.java

@@ -291,7 +291,7 @@ static Thread currentVThread() {
 
     @SuppressWarnings("static-method")
     @Substitute
-    @TargetElement(onlyWith = LoomJDK.class)
+    @TargetElement(onlyWith = JDK19OrLater.class)
     void setCurrentThread(Thread thread) {
         PlatformThreads.setCurrentThread(JavaThreads.fromTarget(this), thread);
     }
@@ -336,7 +336,14 @@ private Target_java_lang_Thread(
         // TODO: derive from characteristics bitset
         boolean inheritThreadLocals = false;
         /* Initialize the rest of the Thread object, ignoring `characteristics`. */
-        JavaThreads.initializeNewThread(this, g, target, name, stackSize, acc, inheritThreadLocals);
+        String nameLocal = (name != null) ? name : genThreadName();
+        JavaThreads.initializeNewThread(this, g, target, nameLocal, stackSize, acc, inheritThreadLocals);
+    }
+
+    @Substitute
+    @TargetElement(onlyWith = JDK19OrLater.class)
+    static String genThreadName() {
+        return "Thread-" + JavaThreads.threadInitNumber.incrementAndGet();
     }
 
     /**
@@ -558,6 +565,12 @@ private static Map<Thread, StackTraceElement[]> getAllStackTraces() {
         return PlatformThreads.getAllStackTraces();
     }
 
+    @Substitute
+    @TargetElement(onlyWith = JDK19OrLater.class)
+    private static Thread[] getAllThreads() {
+        return PlatformThreads.getAllThreads();
+    }
+
     /**
      * In the JDK, this is a no-op except on Windows. The JDK resets the interrupt event used by
      * Process.waitFor ResetEvent((HANDLE) JVM_GetThreadInterruptEvent()); Our implementation in

vm/ci_includes/vm.jsonnet

@@ -26,8 +26,8 @@ local jdks = common_json.jdks;
 
   vm_java_19:: graal_common.labsjdk19 + {
     environment+: {
-      BASE_JDK_NAME: jdks['jdk-19-ea'].name,
-      BASE_JDK_VERSION: jdks['jdk-19-ea'].version,
+      BASE_JDK_NAME: jdks['labsjdk-ce-19'].name,
+      BASE_JDK_VERSION: jdks['labsjdk-ce-19'].version,
       BASE_JDK_SHORT_VERSION: '19',
     },
   },
@@ -44,6 +44,12 @@ local jdks = common_json.jdks;
     },
   },
 
+  vm_java_19_llvm:: self.vm_java_19 + {
+    downloads+: {
+      LLVM_JAVA_HOME: jdks['labsjdk-ce-19-llvm'],
+    },
+  },
+
   binaries_repository: 'lafo',
   svm_suite:: '/substratevm',
   libgraal_env: 'libgraal',