The following 3 tests timed out in the JDK23 CI with UT enabled:

vmTestbase/nsk/jdi/EventRequestManager/threadDeathRequests/thrdeathreq001/TestDescription.java
vmTestbase/nsk/jdi/ClassPrepareEvent/thread/thread001/TestDescription.java
vmTestbase/nsk/jdi/ClassPrepareEvent/referenceType/refType001/TestDescription.java

thrdeathreq001 log snippet:

2) Getting ThreadDeathRequest objects with enabled event requests...
Found expected ThreadDeathRequest object with the property: (first,a quick)
Found expected ThreadDeathRequest object with the property: (second,brown)
Found expected ThreadDeathRequest object with the property: (third,fox)
Found expected ThreadDeathRequest object with the property: (fourth,jumps)
Found expected ThreadDeathRequest object with the property: (fifth,over)
Found expected ThreadDeathRequest object with the property: (sixth,the lazy)
Found expected ThreadDeathRequest object with the property: (seventh,dog)
EventListener: following JDI event occured: ThreadDeathEvent in thread UsageTracker
EventListener: following JDI event occured: ThreadDeathEvent in thread UsageTracker
EventListener: following JDI event occured: ThreadDeathEvent in thread UsageTracker
EventListener: following JDI event occured: ThreadDeathEvent in thread UsageTracker
EventListener: following JDI event occured: ThreadDeathEvent in thread UsageTracker
EventListener: following JDI event occured: ThreadDeathEvent in thread UsageTracker
EventListener: following JDI event occured: ThreadDeathEvent in thread UsageTracker
EventListener: exiting
Timeout signalled after 480 seconds
# ERROR: TEST FAILED: debuggee's process finished with status: 134
The following stacktrace is for failure analysis.
nsk.share.TestFailure: TEST FAILED: debuggee's process finished with status: 134
at nsk.share.Log.logExceptionForFailureAnalysis(Log.java:431)
at nsk.share.Log.complain(Log.java:402)
at nsk.jdi.EventRequestManager.threadDeathRequests.thrdeathreq001.quitDebuggee(thrdeathreq001.java:187)
at nsk.jdi.EventRequestManager.threadDeathRequests.thrdeathreq001.runIt(thrdeathreq001.java:131)
at nsk.jdi.EventRequestManager.threadDeathRequests.thrdeathreq001.run(thrdeathreq001.java:82)
at nsk.jdi.EventRequestManager.threadDeathRequests.thrdeathreq001.main(thrdeathreq001.java:78)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1575)


#>
#> SUMMARY: Following errors occured
#> during test execution:
#>
# ERROR: TEST FAILED: debuggee's process finished with status: 134
----------System.err:(0/0)----------
----------rerun:(40/10287)*----------


thread001 log snippet:

ClassPrepareEvent received:
  ClassPrepareEvent in thread UsageTracker

ClassPrepareEvent received:
  ClassPrepareEvent in thread outerThread
Class nsk.jdi.ClassPrepareEvent.thread.ClassForOuterThread prepared in thread outerThread
Thread outerThread is correctly suspended

ClassPrepareEvent received:
  ClassPrepareEvent in thread UsageTracker

ClassPrepareEvent received:
  ClassPrepareEvent in thread main

ClassPrepareEvent received:
  ClassPrepareEvent in thread main

ClassPrepareEvent received:
  ClassPrepareEvent in thread UsageTracker

ClassPrepareEvent received:
  ClassPrepareEvent in thread main

ClassPrepareEvent received:
  ClassPrepareEvent in thread UsageTracker
eventHandler completed
Disabling StepEvent request
Sending command: quit
Waiting for debuggee terminating
debugee.stderr> All threads started in debuggee
Timeout signalled after 480 seconds
# ERROR: Debuggee FAILED with exit code: 134
The following stacktrace is for failure analysis.
nsk.share.TestFailure: Debuggee FAILED with exit code: 134
at nsk.share.Log.logExceptionForFailureAnalysis(Log.java:431)
at nsk.share.Log.complain(Log.java:402)
at nsk.jdi.ClassPrepareEvent.thread.thread001.run(thread001.java:334)
at nsk.jdi.ClassPrepareEvent.thread.thread001.main(thread001.java:79)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1575)
# ERROR: TEST FAILED


#>
#> SUMMARY: Following errors occured
#> during test execution:
#>
# ERROR: Debuggee FAILED with exit code: 134
# ERROR: TEST FAILED
----------System.err:(0/0)----------
----------rerun:(40/10107)*----------


refType001 log snippet:

ClassPrepareEvent received:
  ClassPrepareEvent in thread UsageTracker

ClassPrepareEvent received:
  ClassPrepareEvent in thread main

ClassPrepareEvent received:
  ClassPrepareEvent in thread main

ClassPrepareEvent received:
  ClassPrepareEvent in thread UsageTracker

ClassPrepareEvent received:
  ClassPrepareEvent in thread main

ClassPrepareEvent received:
  ClassPrepareEvent in thread UsageTracker
eventHandler completed
Disabling StepEvent request
debugee.stderr> Another thread started in debuggee: AnotherThread
Sending command: quit
Waiting for debuggee terminating
Timeout signalled after 480 seconds
# ERROR: Debuggee FAILED with exit code: 134
The following stacktrace is for failure analysis.
nsk.share.TestFailure: Debuggee FAILED with exit code: 134
at nsk.share.Log.logExceptionForFailureAnalysis(Log.java:431)
at nsk.share.Log.complain(Log.java:402)
at nsk.jdi.ClassPrepareEvent.referenceType.refType001.run(refType001.java:310)
at nsk.jdi.ClassPrepareEvent.referenceType.refType001.main(refType001.java:75)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1575)
# ERROR: TEST FAILED


#>
#> SUMMARY: Following errors occured
#> during test execution:
#>
# ERROR: Debuggee FAILED with exit code: 134
# ERROR: TEST FAILED
----------System.err:(0/0)----------
----------rerun:(40/10179)*----------