<i18n dev> RFR: 8366178: Implement JEP 526: Lazy Constants (Second Preview)

[Maurizio Cimadamore]

On Thu, 2 Oct 2025 10:51:08 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> Implement JEP 526: Lazy Constants (Second Preview)
> 
> The lazy list/map implementations are broken out from `ImmutableCollections` to a separate class.
> 
> The old benchmarks are not moved/renamed to allow comparison with previous releases.
> 
> `java.util.Optional` is updated so that its field is annotated with `@Stable`.  This is to allow `Optional` instances to be held in lazy constants and still provide constant folding.

test/jdk/java/lang/LazyConstant/DemoImperativeTest.java line 25:

> 23: 
> 24: /* @test
> 25:  * @summary Demo of an imperative stable value based on a lazy constant

Should this summary be updated (and. some of the classes defined here)

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PR Review Comment: https://git.openjdk.org/jdk/pull/27605#discussion_r2426297364