RFR: 8316401: sun/tools/jhsdb/JStackStressTest.java failed with "InternalError: We should have found a thread that owns the anonymous lock" [v3]

[Roman Kennke]

On Thu, 28 Sep 2023 09:11:12 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> The SA can run concurrently with Java threads, SA code that inspects locking state should be able to deal with that. On the other hand, the particular code is only used in printing routine and is not expected to be precise. When resolving an anonymous owner, we may not find one, because Java threads may already have moved on. Instead of crashing with a stacktrace, we should gracefully return null here.
>> 
>> Testing:
>>  - [x] sun/tools/jhsdb/JStackStressTest.java
>>  - [x] sun/tools/jhsdb
>>  - [x] serviceability/sa
>
> Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix comment

Thanks!

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PR Comment: https://git.openjdk.org/jdk/pull/15907#issuecomment-1740721744