RFR: 8366178: Implement JEP 526: Lazy Constants (Second Preview) [v25]

[Per Minborg]

On Fri, 14 Nov 2025 09:45:39 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> Per Minborg has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 112 commits:
>> 
>>  - Clarify toString spec
>>  - Merge branch 'master' into lazy-constants
>>  - Add @AOTSafeClassInitializer
>>  - Address comments in PR
>>  - Fix merge mistake
>>  - Merge master
>>  - Rework toString implementations
>>  - Update after doc comments
>>  - Merge branch 'master' into lazy-constants
>>  - Revert the AbstractMap.keySet @Stable annotation
>>  - ... and 102 more: https://git.openjdk.org/jdk/compare/76a1109d...1f439bec
>
> src/java.base/share/classes/java/lang/LazyConstant.java line 280:
> 
>> 278:      * {@code computingFunction} at least until initialization completes successfully.
>> 279:      * <p>
>> 280:      * If the provided computing function is already an instance of
> 
> Not sure how I feel about that -- it seems to soft-break equals...

Let's think about this once more.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27605#discussion_r2531779955