The following test timed out in the JDK26 CI:

sun/security/tools/jarsigner/CheckSignerCertChain.java

Here's a snippet from the log file:

#section:main
----------messages:(11/361)----------
command: main CheckSignerCertChain
reason: Assumed action based on file name: run main CheckSignerCertChain
started: Mon Oct 06 10:14:40 UTC 2025
Mode: agentvm
Agent id: 254
Process id: 29140
Timeout signalled after 120 seconds
Timeout information:
--- Timeout information end.
finished: Mon Oct 06 10:23:46 UTC 2025
elapsed time (seconds): 546.208
----------configuration:(14/1395)*----------

<snip>

Exit value: 0
----------System.err:(3/38)----------

JavaTest Message: Test complete.

result: Error. "main" action timed out with a timeout of 120 seconds on agent 254


test result: Error. "main" action timed out with a timeout of 120 seconds on agent 254

The "JavaTest Message: Test complete." mesg means that the test
did finish. The elapsed time is:

elapsed time (seconds): 546.208

The problem is that I can't determine if the test finished before
the 120 second timeout and the rest of the time was taken up
by the agent thread or if the test itself executed for longer than
the allotted 120 seconds.