RFR: 8361238: G1 tries to get CPU info from terminated threads at shutdown

[Arno Zeller]

On Wed, 2 Jul 2025 07:57:28 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review this fix after the recent changes in void JDK-8274051 where G1 tries to get thread cpu time on already terminated threads.
> 
> The fix is to move the printing/statistics before stopping the threads. This seems fine for the two implementors of the method.
> 
> In a future change, since so few GCs implement `print_tracing_info`, the call should probably move to `stop()/begin_exit()`.
> 
> Testing: gha
> 
> Thanks,
>   Thomas

Looks good to me - just verified that it solves the issues we have seen on AIX in tier1 tests.

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PR Comment: https://git.openjdk.org/jdk/pull/26086#issuecomment-3027438351