RFR: 8314100: G1: Improve collection set candidate selection code

Fri Aug 11 13:30:58 UTC 2023

On Fri, 11 Aug 2023 07:36:23 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   discussions during review of [JDK-8140326](https://bugs.openjdk.org/browse/JDK-8140326) indicated that he code surrounding selecting candidates after marking/rebuild for the collection set could be improved.
> 
> Testing: gha
> 
> Thanks,
>   Thomas

Passed tier1-3 too.

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PR Comment: https://git.openjdk.org/jdk/pull/15243#issuecomment-1674772141