The following test failed in the JDK23 CI:

serviceability/jvmti/ObjectMonitorUsage/ObjectMonitorUsage.java

Here's a snippet from the log file:

#section:main
----------messages:(6/396)----------
command: main -Djdk.virtualThreadScheduler.parallelism=10 -agentlib:ObjectMonitorUsage ObjectMonitorUsage
reason: User specified action: run main/othervm/native -Djdk.virtualThreadScheduler.parallelism=10 -agentlib:ObjectMonitorUsage ObjectMonitorUsage 
started: Thu Mar 21 18:45:20 UTC 2024
Mode: othervm [/othervm specified]
finished: Thu Mar 21 18:45:21 UTC 2024
elapsed time (seconds): 1.038
----------configuration:(0/0)----------
----------System.out:(385/16454)----------

### main: started

>>> [1]
>>>          owner:               none (0x0)
>>>          entry_count:         0
>>>          waiter_count:        0
>>>          notify_waiter_count: 0

### test0: started platform
>>> MonitorWait event: WaitingPT0 counter: 1
>>> MonitorWait event: WaitingPT1 counter: 2
>>> MonitorWait event: WaitingPT2 counter: 3
>>> MonitorWait event: WaitingPT3 counter: 4
>>> [2]
>>>          owner:               WaitingPT3 (0x0x7fe0e0000be0)
>>>          entry_count:         1
>>>          waiter_count:        0
>>>          notify_waiter_count: 3
>>>  notify_waiters:
>>>                 0: WaitingPT0 (0x0x7fe0e0000be8)
>>>                 1: WaitingPT1 (0x0x7fe0e0000bf0)
>>>                 2: WaitingPT2 (0x0x7fe0e0000bf8)
FAILED: (2) unexpected owner: 0x0x7fe0e0000be0
FAILED: (2) entry_count expected: 0, actually: 1
FAILED: (2) notify_waiter_count expected: 4, actually: 3
>>> MonitorContendedEnter event: MainThread counter: 1
>>> MonitorContendedEntered event: MainThread counter: 0
>>> MonitorWaited event: WaitingPT0 counter: 3
>>> MonitorWaited event: WaitingPT3 counter: 2
>>> MonitorWaited event: WaitingPT2 counter: 1
>>> MonitorWaited event: WaitingPT1 counter: 0
### test0: finished platform

<snip>

----------System.err:(11/676)----------
java.lang.RuntimeException: Failed status returned from the agent
	at ObjectMonitorUsage.main(ObjectMonitorUsage.java:292)
	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)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Failed status returned from the agent
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Failed status returned from the agent
----------rerun:(38/6516)*----------