On Thu, 29 Jun 2023 18:40:50 GMT, Alex Menkov <amen...@openjdk.org> wrote:

>> This is follow-up JDK-8307153/JDK-8309612 (JVMTI GetThreadState on carrier 
>> should return STATE_WAITING)
>> New test tests GetThreadState for different thread states.
>> The test detected a bug in the implementation, new issue is created: 
>> JDK-8310584
>> Corresponding testcases are commented now in the test, fix for JDK-8310584 
>> will uncomment them
>
> Alex Menkov has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   updated comment

Just a couple of comment suggestions. Otherwise looks good.

What testing did you do? Any -Xcomp testing?

test/hotspot/jtreg/serviceability/jvmti/vthread/GetThreadStateMountedTest/GetThreadStateMountedTest.java
 line 41:

> 39: /**
> 40:  * The test implements different scenarios to get desired JVMTI thread 
> states.
> 41:  * For each scenario test also checks states after carrier and virtual 
> threads suspend/resume

Suggestion:

 * For each scenario the test also checks states after carrier and virtual 
threads suspend/resume

test/hotspot/jtreg/serviceability/jvmti/vthread/GetThreadStateMountedTest/GetThreadStateMountedTest.java
 line 45:

> 43:  * Special handling is required for WAITING state scenarios:
> 44:  * Spurious wakeups may cause unexpected thread state change and this 
> causes test failure.
> 45:  * To avoid this test thread should be suspended (i.e. carrier and/or 
> mounted virtual thread is suspended).

Suggestion:

 * To avoid this, the test thread should be suspended (i.e. carrier and/or 
mounted virtual thread is suspended).

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

Marked as reviewed by cjplummer (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14622#pullrequestreview-1523188533
PR Review Comment: https://git.openjdk.org/jdk/pull/14622#discussion_r1259012273
PR Review Comment: https://git.openjdk.org/jdk/pull/14622#discussion_r1259012879

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