JEP proposed to target JDK 25: 506: Scoped Values

Mark Reinhold mark.reinhold at oracle.com
Fri May 16 11:41:53 UTC 2025


2025/5/8 13:12:16 -0400, mark.reinhold at oracle.com:
> The following JEP is proposed to target JDK 25:
> 
>   506: Scoped Values
>        https://openjdk.org/jeps/506
> 
>   Summary: Introduce scoped values, which enable a method to share
>   immutable data both with its callees within a thread, and with child
>   threads.  Scoped values are easier to reason about than thread-local
>   variables.  They also have lower space and time costs, especially when
>   used together with virtual threads (JEP 444) and structured concurrency
>   (JEP 505).
> 
> Feedback on this proposal from JDK Project Committers and Reviewers [1]
> is more than welcome, as are reasoned objections.  If no such objections
> are raised by 18:00 UTC on Thursday, 15 May, or if they’re raised and
> then satisfactorily answered, then per the JEP 2.0 process proposal [2]
> I’ll target this JEP to JDK 25.

Hearing no objections, I’ve targeted this JEP to JDK 25.

- Mark


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