On Thu, 7 Mar 2024 00:13:56 GMT, Serguei Spitsyn <sspit...@openjdk.org> wrote:

>> Please, review this fix correcting the JVMTI  `RawMonitorWait()` 
>> implementation.
>> The `RawMonitorWait()` is using the the  `jt->is_interrupted(true)` to 
>> update the interrupt status of the interrupted waiting thread.  The issue is 
>> that when it calls `jt->is_interrupted(true)` to fetch and clear the 
>> `interrupt status` of the virtual thread, this information is not propagated 
>> to the `java.lang.Thread` instance.
>> In the `VirtualThread` class implementation the `interrupt status` for 
>> virtual thread is stored for both virtual and carrier threads. It is because 
>> the implementation of object monitors for virtual threads is based on 
>> pinning virtual threads, and so, always operates on carrier thread. The fix 
>> is to clear the interrupt status for both virtual and carrier  
>> `java.lang.Thread` instances.
>> 
>> Testing:
>>  - tested with new test 
>> `hotspot/jtreg/serviceability/jvmti/vthread/InterruptRawMonitor` which is 
>> passed with the fix and failed without it
>>  - ran mach5 tiers 1-6
>
> Serguei Spitsyn has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   review: dropped the catch of InterruptedException in Object.wait

Can you check if 
vmTestbase/nsk/jvmti/scenarios/bcinstr/BI04/bi04t002/TestDescription.java is 
passing now? That test is a bit annoying in that it fails every time we touch 
j.l.Object so you might have to update 
BI04/bi04t002/newclass02/java.base/java/lang/Object.java  again.

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

PR Comment: https://git.openjdk.org/jdk/pull/18093#issuecomment-1982739813

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