RFR: 8312174: missing JVMTI events from vthreads parked during JVMTI attach [v2]

[Serguei Spitsyn]

On Fri, 8 Sep 2023 03:03:56 GMT, Leonid Mesnik <lmesnik at openjdk.org> wrote:

>> Serguei Spitsyn has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
>> 
>>  - Merge
>>  - 8312174: missing JVMTI events from vthreads parked during JVMTI attach
>
> test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadEventTest/VThreadEventTest.java line 86:
> 
>> 84:             log("WARNING: test expects at least 8 processors.");
>> 85:         }
>> 86:         Counter ready1 = new Counter(THREAD_CNT);
> 
> I think that CountDownLatch should works fine here and no need to use custom Counter.

Thanks. Replaced it with the CountDownLatch now.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15467#discussion_r1320422749