RFR: 8244291: Test: gc/z/TestGarbageCollectorMXBean.java failed: "unexpected cycles"
per.liden at oracle.com
Tue May 19 20:20:34 UTC 2020
The test gc/z/TestGarbageCollectorMXBean.java has failed once on Windows
(out of several thousands of runs) in our CI. I've been unable to
reproduce the problem, and code inspection has not reviled anything
suspicious. The only explanation that seems semi-plausible is that the
the Notification thread was severely starved on CPU and didn't manage to
send notifications in a timely manner.
This patch extends the notification timeout from 60 to 90 seconds, and
adds additional logging with timestamps, which will hopefully help us
understand the problem a bit better if it ever happens again.
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