RFR: 8334445: Parallel: Decouple maximum compaction from SoftReference clearing [v3]

[Liang Mao]

On Tue, 2 Jul 2024 09:05:33 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Simple refactoring to not assume maximum-compaction from soft-ref-clearing.
>
> Albert Mingkun Yang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
> 
>  - Merge branch 'master' into pgc-max-compact
>  - Merge branch 'master' into pgc-max-compact
>  - pgc-max-compact

Marked as reviewed by lmao (no project role).

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PR Review: https://git.openjdk.org/jdk/pull/19763#pullrequestreview-2162703036