RFR: 8373643: Test serviceability/jvmti/vthread/ThreadListStackTracesTest/ThreadListStackTracesTest.java still failing [v2]

[Serguei Spitsyn]

On Fri, 9 Jan 2026 04:21:25 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

>> test/hotspot/jtreg/serviceability/jvmti/vthread/ThreadListStackTracesTest/ThreadListStackTracesTest.java line 48:
>> 
>>> 46: 
>>> 47:     public void ensureReadyAndWaiting(Thread vt, Thread.State expState, ReentrantLock rlock) {
>>> 48:         sleep(50); // reliability: wait for a potential ReentrantLock class loading to complete
>> 
>> It is not clear how ReentrantLock might be not loaded already.  Can you please explain what do you mean?
>
> There can be more than one class. E.g., some can be involved on contention.

I've update the comment an removed the word `ReentrantLock` to avoid possible confusions.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29102#discussion_r2678039810