RFR: Merge openjdk/jdk21u:master [v2]

[William Kemper]

On Tue, 26 Aug 2025 22:26:39 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Merges tag jdk-21.0.9+4
>
> William Kemper 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.

Superseded by https://github.com/openjdk/shenandoah-jdk21u/pull/216.

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PR Comment: https://git.openjdk.org/shenandoah-jdk21u/pull/215#issuecomment-3234646276