On Mon, 5 Jun 2023 15:10:18 GMT, Alan Bateman <al...@openjdk.org> wrote:

>> test/hotspot/jtreg/vmTestbase/nsk/monitoring/share/ThreadController.java 
>> line 660:
>> 
>>> 658:         expectedMethods.add(Thread.class.getName() + ".sleep");
>>> 659:         expectedMethods.add(Thread.class.getName() + ".sleepNanos");
>>> 660:         expectedMethods.add(Thread.class.getName() + ".sleepNanos0");
>> 
>> I'm surprised this test doesn't list `beforeSleep` and `afterSleep`.
>
>> There is one potential, pre-existing, test omission noted below.
>> I'm surprised this test doesn't list `beforeSleep` and `afterSleep`.
> 
> The monitoring/stress/thread tests will fail if they observe an unexpected 
> method name in the stack trace. I don't think it can happen because the tests 
> poll the thread state and for SleepingThread, it will sample the stack trace 
> when the thread state is timed-wait. The beforeSleep/afterSleep methods won't 
> in the stack trace when sleeping. It would be harmless to add them in that 
> they aren't going to cause these tests to fail but might help with any 
> further changes.

The following commit in loom heavily modified this file with a lot of added 
expected methods. There are other related tests with similar changes. I'm not 
so sure I understand the need for so many additions, and also why 
expectedLength is so out of sync with the number of added method. I don't 
believe this commit was reviewed individually, but was just part of the overall 
loom review when merge into jdk. Perhaps it should be revisited.

https://github.com/openjdk/loom/commit/26e66bc1a6a0dd735c8138a696809caba3e82b26

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/14303#discussion_r1218539693

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