16 Pull requests merged by 9 people

• Add JFR ModuleRequire Event

  #22087 merged Jun 16, 2025

• Eliminate VM_compiledAsDLTBefore message for JITServer

  #22071 merged Jun 13, 2025

• Fix VmArgumentTests

  #22091 merged Jun 13, 2025

• Identify MutableCallSite for guards based on known object index

  #22009 merged Jun 12, 2025

• Ignore -Xjcl options

  #22066 merged Jun 12, 2025

• Remove unnecessary bootjdk urls from defaults.yml

  #22084 merged Jun 12, 2025

• Infrastructure to segregate code caches

  #22045 merged Jun 11, 2025

• Pass VENDOR_CODE parameters to build jobs

  #22049 merged Jun 10, 2025

• Refactor to support jdk8 JCL compilation with and without OpenJDK

  #21967 merged Jun 10, 2025

• JDK26 JavaLangAccess adds decodeASCII(), removes uncheckedDecodeASCII()

  #22072 merged Jun 10, 2025

• Rename JFR BuildResult to JfrBuildResult

  #22065 merged Jun 10, 2025

• Add build support for jdk25 and 26

  #22067 merged Jun 10, 2025

• Fix crash with -Xjit:disableKnownObjectTable

  #22062 merged Jun 10, 2025

• Box and unbox all types in VectorAPIExpansion: restore and fix compile error

  #22058 merged Jun 10, 2025

• Support MODE_BITS_COERCED_LONG_TO_MASK Vector API opcode

  #22011 merged Jun 9, 2025

• (0.53) Fix add module read JNI return type

  #22061 merged Jun 9, 2025

8 Pull requests opened by 7 people

• RCP: Introducing Frozen Classes

  #22063 opened Jun 9, 2025

• Support MODE_BROADCAST for masks

  #22064 opened Jun 9, 2025

• Handle Block Split in vectorizedMismatch Transformer

  #22073 opened Jun 10, 2025

• Improve IllegalAccessError with specific exception messages

  #22075 opened Jun 10, 2025

• Add missing method names in Test_JITHelpers.java

  #22076 opened Jun 11, 2025

• Remove Hard-Coded Restrictions to CodeCache Page Sizes on P

  #22086 opened Jun 12, 2025

• Add documentation about docker AOT issue on Linux on IBM Z®

  #22088 opened Jun 12, 2025

• Improve build failure patterns

  #22092 opened Jun 16, 2025

16 Issues closed by 6 people

• FIPS jdk_security1_0 java/security/Security/ClassLoaderDeadlock/Deadlock.java timed out

  #21919 closed Jun 13, 2025

• Semeru build error: passing argument 4 of 'JCC_d2i_PrivateKey' from incompatible pointer type

  #22057 closed Jun 13, 2025

• VmArgumentTests AssertionError: mandatory argument not found: -Xjcl:

  #22090 closed Jun 13, 2025

• FIPS jdk_security3_1 sun/security/mscapi/nonUniqueAliases/NonUniqueAliases.java NoSuchAlgorithmException: Windows-MY KeyStore not available

  #21920 closed Jun 13, 2025

• jdk_lang_0 java/lang/Thread/virtual/MonitorEnterExit.java j9mm.479 ASSERTION FAILED at openj9/runtime/gc_glue_java/ScavengerDelegate.cpp:362: ((MM_StackSlotValidator(MM_StackSlotValidator::NOT_ON_HEAP, *slotPtr, stackLocation, walkState).validate(env)))

  #22079 closed Jun 12, 2025

• ASSERTION FAILED ContinuationHelpers.cpp ((monitorCount <= currentThread->ownedMonitorCount))

  #21830 closed Jun 10, 2025

• NPEs in FieldSetAccessibleTest.java with Balanced in Arraylets mode (off-heap disabled) on aMac.

  #21985 closed Jun 10, 2025

• Inconsistent Behavior Between OpenJ9 and Hotspot in AES Encryption

  #21886 closed Jun 10, 2025

• MathLoadTest_bigdecimal_CS_5m_0 Segmentation error vmState=0x00000000 Compiled_method=java/lang/Class.getConstructor([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;

  #22002 closed Jun 10, 2025

• harmony crash vmState=0x0005ff0a

  #20561 closed Jun 9, 2025

• JDK24 jdk_security3_0 FIPS failures to be excluded?

  #21209 closed Jun 9, 2025

• jdk_rmi_0 FAILED SecurityException: SHA MessageDigest not available

  #21794 closed Jun 9, 2025

• jdk_security4_1 sun/security/krb5/NullStringToKey.java RuntimeException: Didn't get expected exception

  #21755 closed Jun 9, 2025

• jdk_other_0 javax/rmi/ssl/SocketFactoryTest.java KeyManagementException: if keyStoreType is PKCS11, then keyStore must be NONE

  #21756 closed Jun 9, 2025

• FIPS jdk_security3_0 FAILED NoSuchAlgorithmException: JKS KeyStore not available

  #21800 closed Jun 9, 2025

• harmony ObjectStreamClassTest NullPointerException lookupCachedMethod

  #21822 closed Jun 9, 2025

12 Issues opened by 6 people

• default/libj9vm29.so: undefined symbol: omrthread_get_thread_times on latest fedora

  #22093 opened Jun 16, 2025

• jdk_lang_0 java/lang/Thread/virtual/MiscMonitorTests.java#Xcomp-noTieredCompilation j9codertvm(j9ji.110 ASSERTION FAILED at runtime/codert_vm/jswalk.c:538: ((0 ))

  #22089 opened Jun 12, 2025

• JITServer crash in Compilation::getReloTypeForMethodToBeInlined

  #22085 opened Jun 12, 2025

• jdk_lang_j9_1 java/lang/Thread/virtual/MiscMonitorTests.java#Xcomp j9vm.224 ASSERTION FAILED runtime/vm/ContinuationHelpers.cpp:791: ((objectMonitor->ownerContinuation == currentThread->currentContinuation))

  #22082 opened Jun 12, 2025

• jdk_lang_j9_1 java/lang/Thread/virtual/MonitorEnterExit.java j9mm.107 ASSERTION FAILED at omr/gc/base/HeapRegionManager.hpp:282: ((false && (heapAddress >= _lowTableEdge)))

  #22081 opened Jun 11, 2025

• RCP: pingLiberty server failed to startup in restore mode with -Xgcpolicy:balanced

  #22080 opened Jun 11, 2025

• JDK24 crypto/ct/ct_sct.c:161:1: internal compiler error: Segmentation fault

  #22078 opened Jun 11, 2025

• serviceability_jvmti_j9_1 serviceability/jvmti/vthread/VThreadMonitorTest/VThreadMonitorTest.java RuntimeException: FAILED status returned from the agent

  #22077 opened Jun 11, 2025

• Crash in java/lang/Thread/virtual/MiscMonitorTests.java testContentionWithSyncMethods()

  #22074 opened Jun 10, 2025

• Timedout at Continuation.yield() - java/lang/Thread/virtual/ThreadAPI.java

  #22070 opened Jun 10, 2025

• Liberty crash compiling method with vmstate 0x501FF

  #22069 opened Jun 10, 2025

• jdk_util_0_FAILED java/util/concurrent/ThreadPoolExecutor/ThrowingTasks.java Agent timed out

  #22068 opened Jun 10, 2025

68 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Implement LastITable for Z platform

  #21969 commented on Jun 13, 2025 • 15 new comments

• Accelerate StringCoding.hasNegatives for JDK 11, 17, StringCoding.countPositives for JDK 21+ on x86

  #21121 commented on Jun 16, 2025 • 3 new comments

• Inline checkcast of references to elements of j/l/O arrays on x86

  #21253 commented on Jun 10, 2025 • 2 new comments

• jdk_nio_0 java/nio/file/attribute/BasicFileAttributeView/SetTimesNanos.java FileSystemException: symlink: A required privilege is not held by the client

  #21959 commented on Jun 13, 2025 • 0 new comments

• j9vm.test.arraylets.ArrayletAllocateTest OOM

  #9969 commented on Jun 13, 2025 • 0 new comments

• AIX build failure in ClassFileOracle

  #21825 commented on Jun 13, 2025 • 0 new comments

• JDK24: VirtualThread: Crash in threadstate()

  #22047 commented on Jun 13, 2025 • 0 new comments

• Crash in walkStackFrames

  #21829 commented on Jun 13, 2025 • 0 new comments

• jdk_security openjceplus mode failures

  #21996 commented on Jun 13, 2025 • 0 new comments

• JDK24 GetStackTraceSuspendedStressTest - Invalid JIT return address

  #21411 commented on Jun 13, 2025 • 0 new comments

• jdk_lang_j9_1 java/lang/Thread/virtual/Parking.java#Xcomp-noTieredCompilation Segmentation error vmState=0x00000000

  #21990 commented on Jun 13, 2025 • 0 new comments

• OpenJDK sun/security/krb5/auto/ReplayCacheTestProc

  #21635 commented on Jun 13, 2025 • 0 new comments

• openjceplus jdk_security4_0 sun/security/krb5/auto/principalProperty/PrincipalSystemPropTest.java ProviderException: Could not load dependent ock library

  #22039 commented on Jun 13, 2025 • 0 new comments

• openj9 21.0.7 oom

  #21988 commented on Jun 13, 2025 • 0 new comments

• OpenJDK java/lang/Thread/jni/AttachCurrentThread/AttachTest crash vmState=0x00000000

  #21619 commented on Jun 13, 2025 • 0 new comments

• jdk_util_0 java/util/stream/test/org/openjdk/tests/java/util/stream/MapOpTest.java Segmentation error vmState=0x00000000

  #21958 commented on Jun 13, 2025 • 0 new comments

• OpenJDK java/lang/Thread/virtual/Collectable.java timeout

  #18463 commented on Jun 13, 2025 • 0 new comments

• OpenJDK java/lang/reflect/IllegalArgumentsTest NullPointerException: Cannot invoke "sun.invoke.util.ValueConversions.primitiveConversion(sun.invoke.util.Wrapper, java.lang.Object, boolean)" because "x" is null

  #20683 commented on Jun 13, 2025 • 0 new comments

• cmdLineTester_verbosetest Unable to locate JIT stack map ASSERTION jswalk.c:538

  #21665 commented on Jun 12, 2025 • 0 new comments

• Internal JITServer test failures

  #14538 commented on Jun 13, 2025 • 0 new comments

• openj9 failed to compile with lto at final

  #22056 commented on Jun 16, 2025 • 0 new comments

• serviceability_jvmti_j9_0 serviceability/jvmti/ObjectMonitorUsage/ObjectMonitorUsage.java timed out

  #21890 commented on Jun 16, 2025 • 0 new comments

• jdk_lang_0_FAILED Segmentation error vmState=0x00000000 at detachMonitorInfo

  #22052 commented on Jun 16, 2025 • 0 new comments

• Severe performance degradation in OpenJ9 vs. HotSpot/GraalVM on fuzzer-generated mutated Java code (MergeSort): 3–4x slower than other JVMs on long runs

  #21947 commented on Jun 16, 2025 • 0 new comments

• TriagerX Sandbox

  #19673 commented on Jun 16, 2025 • 0 new comments

• Add -XX:CRaCRestoreFrom=PATH tests

  #19635 commented on Jun 12, 2025 • 0 new comments

• Update AIX specs for building on AIX 7.2

  #21460 commented on Jun 12, 2025 • 0 new comments

• Move SharedClassAPI test native code into openj9

  #21636 commented on Jun 9, 2025 • 0 new comments

• Defragment reserved regions for off heap Step1

  #21817 commented on Jun 12, 2025 • 0 new comments

• Update default cache directory permission to 01700

  #21909 commented on Jun 11, 2025 • 0 new comments

• WIP: disable offheap

  #21970 commented on Jun 13, 2025 • 0 new comments

• Avoid touching the SCC as much as possible during stack walk

  #21972 commented on Jun 10, 2025 • 0 new comments

• Fold calls to Invokers.checkVarHandleGenericType into its result

  #21998 commented on Jun 12, 2025 • 0 new comments

• Recognize StringUTF16.indexOfUnsafe([BI[BII)I

  #22053 commented on Jun 11, 2025 • 0 new comments

• extended.functional_x86-64 SyntheticGCWorkload_concurrentSlackAuto_1M_J9_0

  #6777 commented on Jun 10, 2025 • 0 new comments

• MiniMix, ConcurrentLoadTest hang, sometimes waiting on jsr166y/WaiterTask

  #11868 commented on Jun 10, 2025 • 0 new comments

• MathLoadTest_autosimd_special_5m_18 net.adoptopenjdk.test.autosimd.AutoSIMDTestFloat testMatrixMult ArrayIndexOutOfBoundsException at java.base/jdk.internal.util.ArraysSupport.mismatch(ArraysSupport.java:742)

  #22034 commented on Jun 10, 2025 • 0 new comments

• JCL_Test test_suspend IllegalThreadStateException: Has threads

  #16348 commented on Jun 10, 2025 • 0 new comments

• How can I avoid a hang on error during CRIU checkpoint?

  #19702 commented on Jun 10, 2025 • 0 new comments

• jdk24 CancelTimerWithContention timeout

  #21683 commented on Jun 10, 2025 • 0 new comments

• Liberty InstantOn checkpoint failed on Java11 UBI9-min on Power when using daytrader10 app

  #21895 commented on Jun 10, 2025 • 0 new comments

• Refactor TR::CompilationInfoPerThreadBase::wrappedCompile

  #12496 commented on Jun 9, 2025 • 0 new comments

• OpenJDK java/util/concurrent/tck/JSR166TestCase.java junit test failed, unknown test

  #17135 commented on Jun 9, 2025 • 0 new comments

• jdk_lang_j9_1_FAILED java/lang/Thread/virtual/ThreadAPI.java#default AssertionFailedError: Thread has terminated ==> expected: <true> but was: <false>

  #21917 commented on Jun 9, 2025 • 0 new comments

• criu_pingPerf_testCreateRestoreImageAndPushToRegistry_ubi9_0 FAILED CRIUSupport(imageDir) constructor is deprecated, please use CRIUSupport.getCRIUSupport() and setImageDir(imageDir)

  #21386 commented on Jun 9, 2025 • 0 new comments

• OpenJDK java/lang/reflect/Proxy/ProxyClassAccessTest ASSERTION FAILED gc_vlhgc/CopyForwardScheme.cpp:1283

  #18970 commented on Jun 9, 2025 • 0 new comments

• jdk_security3_0 sun/security/pkcs12/KeytoolOpensslInteropTest.java#GenerateOpensslPKCS12 NullPointerException: Cannot invoke "java.nio.file.Path.getParent()" because the return value of "java.nio.file.Path.getParent()" is null

  #21964 commented on Jun 9, 2025 • 0 new comments

• DaaLoadTest exits unexpectedly

  #21652 commented on Jun 9, 2025 • 0 new comments

• j9mm.479 ASSERTION FAILED openj9/runtime/gc_glue_java/ScavengerRootScanner.hpp:109: ((MM_StackSlotValidator(MM_StackSlotValidator::NOT_ON_HEAP, *slotPtr, stackLocation, walkState).validate(_env)))

  #18098 commented on Jun 9, 2025 • 0 new comments

• OpenJDK java/util/concurrent/CyclicBarrier/Basic.java 3 not equal to 4

  #17209 commented on Jun 9, 2025 • 0 new comments

• Assertion failed 0x0005ff04 BadILOp cannot be evaluated using 0.49 release to build AIX

  #21789 commented on Jun 9, 2025 • 0 new comments

• J9vmTest j9vm.test.unsafe.UnsafeArrayGetTest getLong() != manual read for offset=8

  #21904 commented on Jun 12, 2025 • 0 new comments

• JCL_Test test_suspend - Failed to resume thread

  #17613 commented on Jun 12, 2025 • 0 new comments

• MathLoadTest_autosimd_special_5m_18 AutoSIMDTestInteger.checkThat test failure

  #22060 commented on Jun 12, 2025 • 0 new comments

• Assertion failed monhelpers.c:166: (!((0x1 == (UDATA)(monitor->owner))))

  #21864 commented on Jun 12, 2025 • 0 new comments

• openjdk java/util/concurrent/ExecutorService/Invoke Assertion failure

  #10169 commented on Jun 12, 2025 • 0 new comments

• Test-extended.functional-JDK8-aix_ppc-64_cmprssptrs TestAttachErrorHandling.testPrematureSocketClose acknowledgement timeout

  #3081 commented on Jun 12, 2025 • 0 new comments

• jdk_util_1_FAILED java/util/stream/test/org/openjdk/tests/java/util/stream/StreamSpliteratorTest.java Segmentation error vmState=0x000501ff

  #22001 commented on Jun 12, 2025 • 0 new comments

• jdk_util_1_FAILED java/util/concurrent/ExecutorService/CloseTest.java AssertionError: expected [true] but found [false]

  #17270 commented on Jun 12, 2025 • 0 new comments

• OpenJDK java/lang/Thread/virtual/stress/TimedGet Invalid JIT return address

  #19249 commented on Jun 12, 2025 • 0 new comments

• NPEs in specjbb2015 with Balanced in Arraylets mode (off-heap disabled)

  #21986 commented on Jun 11, 2025 • 0 new comments

• ParallelStreamsLoadTest_special_J9_15 ASSERTION FAILED codert_vm/cnathelp.cpp:125: (!((0 != (((iTableOffset)) & ((1))))))

  #12696 commented on Jun 11, 2025 • 0 new comments

• jdk_lang_j9_0_FAILED java/lang/Thread/virtual/ThreadAPI.java InterruptedException at java.base/java.lang.Object.waitImpl(Native Method)

  #22029 commented on Jun 11, 2025 • 0 new comments

• jdk24 threadMXBeanTimersTest vmState=0x0005ff04 badILOp BadILOp cannot be evaluated

  #21815 commented on Jun 11, 2025 • 0 new comments

• jdk_vector passed but then failed

  #20995 commented on Jun 11, 2025 • 0 new comments

• Crash in Compiled_method=<...> or VM Access Assertion (vmThread)->publicFlags & J9_PUBLIC_FLAGS_VM_ACCESS

  #21824 commented on Jun 11, 2025 • 0 new comments

• testDDRExtJunit_MonitorsAndDeadlock6_0 hang after block indefinitely on lock1test6

  #16270 commented on Jun 11, 2025 • 0 new comments

• MiniMix_3h_0 Segmentation error vmState=0x000504ff

  #22059 commented on Jun 10, 2025 • 0 new comments