RFR: JDK-8310584: GetThreadState reports blocked and runnable for pinned suspended virtual threads [v2]

[Serguei Spitsyn]

On Tue, 18 Jul 2023 00:48:30 GMT, Alex Menkov <amenkov at openjdk.org> wrote:

>> The change fixes handling of "suspended" bit in VT state.
>> The code looks very strange.
>> java_lang_VirtualThread::RUNNING == 3, so line 803 clears JVMTI_THREAD_STATE_ALIVE(1) and JVMTI_THREAD_STATE_TERMINATED(2)
>> Per log this code came from loom repo with VT integration.
>> 
>> Testing: tier1-4, updated GetThreadStateMountedTest.java
>
> Alex Menkov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   check that VT is alive before applying suspend/interrupt bits

The update looks good.
Need to make sure there are no new failures though.
Thanks,
Serguei

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Marked as reviewed by sspitsyn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14878#pullrequestreview-1534021752