Issues

• Math.hypot clears the sign bit of NaN results in JIT-compiled code for negative-side NaN inputs while the interpreter preserves it (OpenJ9 11/17)

  comp:jituserRaised
  eclipse-openj9/openj9#24857 · Filter by author TemporaryRepos opened on Oct 5, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  1

• Math.max/min observable NaN bit pattern changes after JIT compilation (interpreter returns non-quieted sNaN, JIT returns quieted NaN) — OpenJ9 11-25

  comp:jituserRaised
  eclipse-openj9/openj9#24856 · Filter by author TemporaryRepos opened on Oct 5, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  1

• Math.fma result changes after JIT compilation: interpreted path returns a canonical +NaN (payload lost) while the JIT fma intrinsic preserves the negative NaN's full payload (OpenJ9 11-25)

  comp:jituserRaised
  eclipse-openj9/openj9#24855 · Filter by author TemporaryRepos opened on Oct 5, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  2

• Math.abs(double) result changes after JIT compilation: interpreter preserves a negative NaN's sign bit, JIT fabs clears it (OpenJ9 11/17)

  comp:jituserRaised
  eclipse-openj9/openj9#24854 · Filter by author TemporaryRepos opened on Oct 5, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  1

• [J9ValuePropagation] IL diagram for objectInequalityComparison shows reversed result constants

  comp:jituserRaised
  eclipse-openj9/openj9#24853 · Filter by author liulingjing055 opened on Oct 3, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  3

  

• Internal packages should not be included in published javadocs

  eclipse-openj9/openj9#24842 · Filter by author keithc-ca opened on Sep 30, 2026
  2

• openJcePlusTests_0 testDefaultSecureRandom/testDefaultSecureRandomFIPS SecureRandom not SunJCE

  comp:cryptotest failure
  eclipse-openj9/openj9#24835 · Filter by author JasonFengJ9 opened on Sep 29, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  5

• jdk_jfr_J9_0 jdk/jfr/event/runtime/TestNativeLibrariesEvent.java Exception: Unsupported OS

  jfrtest failure
  eclipse-openj9/openj9#24834 · Filter by author JasonFengJ9 opened on Sep 29, 2026 · JFR Support

• # OpenJ9 JIT reports NPE for a non-null int[] parameter

  comp:jituserRaised
  eclipse-openj9/openj9#24833 · Filter by author lzhnative opened on Sep 29, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  1

• JIT/OSR state corruption miscompiles array updates, leading to exact partial data loss

  comp:jituserRaised
  eclipse-openj9/openj9#24829 · Filter by author Shawn-Patrick-Star opened on Sep 28, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  4

• Crash with value types support enabled in OMR::Z::TreeEvaluator::arraycmpHelper calling RegisterDependencyConditions::addPostConditionIfNotAlreadyInserted

  arch:zblockercomp:jit
  eclipse-openj9/openj9#24826 · Filter by author hzongaro opened on Sep 28, 2026
  2

• ASSERTION FAILED at gc_trace_vlhgc/TgcInterRegionRememberedSet.cpp:219 under -Xgcpolicy:balanced -Xtgc:rememberedSetCardList

  comp:gcuserRaised
  eclipse-openj9/openj9#24824 · Filter by author mengxy5236 opened on Sep 27, 2026
  1

• SIGSEGV in VM_BytecodeInterpreterCompressed::run under -XXgc:disableIndexableDualHeaderShape

  comp:gccomp:vmuserRaised
  eclipse-openj9/openj9#24823 · Filter by author mengxy5236 opened on Sep 27, 2026 · Deep Backlog
  1

• SIGSEGV in MM_MemoryPoolAddressOrderedList::contractWithRange under -Xgcpolicy:gencon -Xgc:tlhMinimumSize

  comp:gcuserRaised
  eclipse-openj9/openj9#24821 · Filter by author mengxy5236 opened on Sep 27, 2026
  1

• JDK 21 fastdebug: ASSERTION FAILED at vm/VMAccess.cpp:431 under -Xgcpolicy:metronome -XXgc:concurrentTrace

  comp:gcuserRaised
  eclipse-openj9/openj9#24820 · Filter by author mengxy5236 opened on Sep 27, 2026
  1

• jdk_security3 ExceptionInInitializerError Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.Object.equals(java.lang.Object)" because "key" is null

  test failure
  eclipse-openj9/openj9#24819 · Filter by author JasonFengJ9 opened on Sep 25, 2026

• jdk_lang_j9_0 jdk/internal/reflect/Reflection/GetCallerClassTest.java#id1 main threw exception: java.lang.ExceptionInInitializerError

  comp:jittest failure
  eclipse-openj9/openj9#24817 · Filter by author JasonFengJ9 opened on Sep 25, 2026 · Release 0.64 (Java 8, 11, 17, 21, 25, 27) Jan refresh
  4

• OpenJ9 JDK 21 fastdebug: ASSERTION FAILED at gc_base/GCExtensions.cpp:360 under -Xgcpolicy:metronome

  comp:gcuserRaised
  eclipse-openj9/openj9#24815 · Filter by author mengxy5236 opened on Sep 25, 2026

• jdk_vector Failed. Unexpected exit from test [exit code: 143]

  test failure
  eclipse-openj9/openj9#24814 · Filter by author JasonFengJ9 opened on Sep 25, 2026
  1

• DBBLoadTest_J9_5m timed out

  test failuretimeout
  eclipse-openj9/openj9#24813 · Filter by author JasonFengJ9 opened on Sep 24, 2026

• jdk_security3_1 sun/security/tools/keytool/StorePasswords.java Exception: Stored 17 user passwords, recovered 3 user passwords

  comp:cryptotest failure
  eclipse-openj9/openj9#24812 · Filter by author JasonFengJ9 opened on Sep 24, 2026

• jdk_util_other_1 java/util/PluggableLocale/DateFormatProviderTest.java timed out

  test failuretimeout
  eclipse-openj9/openj9#24811 · Filter by author JasonFengJ9 opened on Sep 24, 2026

• jdk_vector_1 Failed. Unexpected exit from test [exit code: 137]

  test failure
  eclipse-openj9/openj9#24810 · Filter by author JasonFengJ9 opened on Sep 24, 2026

• jdk_lang_j9_1 java/lang/Class/forName/ForNameNames.java "junit" action timed out on agent

  test failuretimeout
  eclipse-openj9/openj9#24809 · Filter by author JasonFengJ9 opened on Sep 24, 2026

• dacapo-tomcat_0 Digest validation failed for stderr.log

  comp:cryptotest failure
  eclipse-openj9/openj9#24804 · Filter by author JasonFengJ9 opened on Sep 23, 2026
  4