The following test timed out in the JDK21 CI:

java/util/zip/DeInflate.java

Here's a snippet from the log file:

#section:main
----------messages:(10/299)----------
command: main DeInflate
reason: Assumed action based on file name: run main DeInflate
started: Wed May 03 20:37:19 UTC 2023
Mode: agentvm
Agent id: 44
Timeout refired 480 times
Timeout information:
--- Timeout information end.
finished: Wed May 03 20:45:58 UTC 2023
elapsed time (seconds): 519.222
----------configuration:(12/1402)----------

<snip>

result: Error. Agent error: java.lang.Exception: Agent 44 timed out with a timeout of 480 seconds; check console log for any additional details