Tobi

Likely due to lack of JIT support. ``` FAILED java/lang/Thread/virtual/stress/TimedGet.java STDOUT: Timeout refired 480 times 34826 45401 56520 67517 77472 87823 98800 110187 121007 131805 142457 152339 162664 173232 183909...

See https://github.com/eclipse-openj9/openj9/issues/15152

``` FAILED java/lang/Thread/virtual/Parking.java Total tests run: 22, Passes: 19, Failures: 2, Skips: 1 test Parking.testPark11(): failure java.lang.RuntimeException: java.lang.AssertionError at jdk.test.lib.thread.VThreadRunner.lambda$run$0(VThreadRunner.java:77) at java.base/java.lang.VirtualThread.run(VirtualThread.java:292) at java.base/java.lang.VirtualThread$VThreadContinuation.lambda$new$0(VirtualThread.java:179) at java.base/jdk.internal.vm.Continuation.execute(Continuation.java:171) Caused by: java.lang.AssertionError at...

CRIU: Failure taking a checkpoint if SSSD daemon is active

8

CRIU fails to dump a checkpoint if there is an active connection to SSSD ``` root:instanton# more wlp/usr/servers/defaultServer/logs/checkpoint/checkpoint.log Warn (compel/src/lib/infect.c:126): Unable to interrupt task: 861562 (Operation not permitted) Warn (compel/arch/x86/src/lib/infect.c:340):...

Add ghost file limit API

3

Also fixed the criu_dump failure path, it was being hidden by calls to query time. Re-ordered the restore hooks so they always occur, even if criu_dump fails. Fixed the CRIUSupport...

Runtime-telemetry-Java17 support on OpenJ9

6

### Is your feature request related to a problem? Please describe. Java17 support inculdes additional metrics such as CPU_COUNT_METRICS and LOCK_METRICS described [here](https://github.com/open-telemetry/opentelemetry-java-instrumentation/tree/main/instrumentation/runtime-telemetry/runtime-telemetry-java17/library). On OpenJ9 JVM these metrics are not...

JFR Writer part 2

1

- modify iterateStackTraceImpl to take array instead of exception object as a walkback - add buffer writer API - add JFRChunkWriter API - add JFR ConstantPool types for type dictionary...

With the following example: ``` Interface val = new Concrete[elements]; val.ifaceMethod(); //throws IncompatibleClassChangeError on J9 whereas RI throws a verification failure much earlier ``` Test files: [TestFiles.zip](https://github.com/user-attachments/files/15974115/TestFiles.zip) Run with: `java...

CRIU: Heap Resiszing on restore

2

**Issue or pull request number:** https://github.com/eclipse-openj9/openj9/issues/18217 **Overview:** *Describe the external change and the impact/benefit from a user perspective.* **Release target:** Eclipse OpenJ9 0.46.0 **Applies to the following JDK versions:** E.g....