The runtime/Thread/TestThreadDumpMonitorContention.java test has been failing intermittently with test time outs on Windows platform. The failures have been mostly seen in tier3 with -XX:+UseZGC in use.

#section:main
----------messages:(10/460)----------
command: main TestThreadDumpMonitorContention
reason: User specified action: run main/othervm TestThreadDumpMonitorContention
started: Wed Jul 02 23:05:52 UTC 2025
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.base --add-exports java.base/jdk.internal.misc=ALL-UNNAMED
Process id: 81788
Timeout information:
--- Timeout information end.
finished: Wed Jul 02 23:21:06 UTC 2025
elapsed time (seconds): 913.65
----------configuration:(4/115)----------
Boot Layer
  add modules: java.base
  add exports: java.base/jdk.internal.misc ALL-UNNAMED

----------System.out:(2/48)----------
Sample #0
Timeout signalled after 480 seconds
----------System.err:(0/0)----------
----------rerun:(45/7250)*----------

...
test result: Error. Program `java` timed out (timeout set to 480000ms, elapsed time including timeout handling was 913635ms).