RFR: 8370890: Start of release updates for JDK 27 [v12]

[Iris Clark]

On Wed, 3 Dec 2025 15:48:23 GMT, Nizar Benalla <nbenalla at openjdk.org> wrote:

>> Get JDK 27 underway.
>
> Nizar Benalla 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 24 additional commits since the last revision:
> 
>  - Merge branch 'master' into start-of-release-27
>  - fix jls 27 link
>  - fix typo and add entry for 27
>  - Merge branch 'master' into start-of-release-27
>  - revert changes to avoid conflict
>  - add 27 to the acceptable boot versions
>  - Merge branch 'master' into start-of-release-27
>  - problem list failing test
>  - Merge branch 'master' into start-of-release-27
>  - expand start of release documentation
>  - ... and 14 more: https://git.openjdk.org/jdk/compare/afcc5cbc...444cc1c8

Marked as reviewed by iris (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28130#pullrequestreview-3536041848