RFR: 8366328: G1: Crash on reading os::thread_cpu_time

Thu Sep 4 08:30:45 UTC 2025

On Thu, 4 Sep 2025 07:48:11 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

> Hi,
> 
> Please review this patch to ensure that we do not attempt to read CPU time for GC threads that have already been terminated.
> 
> Testing: Tier 1-3.

I wonder if the logic and `_is_shutting_down` should be lifted to `CollectedHeap`. It seems to me that it would useful to support this for all collectors.

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PR Comment: https://git.openjdk.org/jdk/pull/27087#issuecomment-3252488472