Tobi

@JasonFengJ9 Ready for another look

@JasonFengJ9 Ready for another look

@gacholio Please review these changes

@JasonFengJ9 Is everything addressed?

@gacholio changes are ready for a look

The failure is ``` 19:03:42 Testing: Create CRIU checkpoint image and restore three times - testMillisDelayBeforeCheckpointDone 19:03:42 Test start time: 2024/02/21 19:03:41 Eastern Standard Time 19:03:42 Running command: bash /home/jenkins/workspace/Test_openjdk21_j9_sanity.functional_x86-64_linux_Personal_testList_1/aqa-tests/TKG/../../jvmtest/functional/cmdLineTests/criu/criuScript.sh...

It looks like the test has completed but the test harness code is still running

It looks similar to https://github.com/eclipse-openj9/openj9/issues/9651 excpet that this test doesn't appear to do excessive GC

NVM, here is the issue ``` 04:14:49 "AgentVMThread" prio=5 Id=363 WAITING 04:14:49 at [email protected]/jdk.internal.misc.Unsafe.park(Native Method) 04:14:49 at [email protected]/java.util.concurrent.locks.LockSupport.park(LockSupport.java:221) 04:14:49 at [email protected]/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:754) 04:14:49 at [email protected]/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1099) 04:14:49 at [email protected]/java.util.concurrent.CountDownLatch.await(CountDownLatch.java:230) 04:14:49 at ParkLoops.main(ParkLoops.java:124)...

It looks like the main thread is waiting to be notified by the worker threads. In the traces above there is still at least onme park thread remaining, none of...