JDK-8347980 : The JVMTI events should not be posted for ObjectLocker
  • Type: Bug
  • Component: hotspot
  • Sub-Component: jvmti
  • Affected Version: 25
  • Priority: P4
  • Status: New
  • Resolution: Unresolved
  • Submitted: 2025-01-17
  • Updated: 2025-01-17
Related Reports
Relates :  
JDK-8345543 - Test serviceability/jvmti/vthread/StopThreadTest/StopThreadTest.java failed: expected JVMTI_ERROR_OPAQUE_FRAME instead of: 0
Relates :  
JDK-8346792 - serviceability/jvmti/vthread/GetThreadState/GetThreadState.java testObjectWaitMillis failed
Description
In a work on the JDK-8345543 and JDK-8346792 fixes it was discovered that the events are generated for ObjectLocker:
 - MonitorWaited
 - MonitorContendedEnter/MonitorContendedEntered (is this true?)

The ObjectLocker is used in VM code internally, so the events above should not be generated for it.