[jdk11u-dev] RFR: 8322511: JfrCheckpointThreadClosure::do_thread crashes when fetching thread_id

[Goetz Lindenmaier]

On Thu, 21 Dec 2023 08:19:32 GMT, 唐佳未 <duke at openjdk.org> wrote:

> Threads which are in the state of `is_attaching_via_jni` may have the NULL object as their `_threadObj` . 
> So the JVM will crash when calling `JfrCheckpointThreadClosure::do_thread()`.

Hi,
is this an error in 11 only?
If so, explain why & where this was fixed in higher versions.
Else please close this PR, reopen it against repo jdk. Once it is submitted there, backport it to 21, 17 and 11.
See also https://wiki.openjdk.org/display/JDKUpdates/How+to+contribute+or+backport+a+fix

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PR Comment: https://git.openjdk.org/jdk11u-dev/pull/2413#issuecomment-1867349537