JEP proposed to target JDK 25: 513: Flexible Constructor Bodies
Mark Reinhold
mark.reinhold at oracle.com
Wed May 7 13:33:07 UTC 2025
2025/4/29 16:41:35 -0400, mark.reinhold at oracle.com:
> The following JEP is proposed to target JDK 25:
>
> 513: Flexible Constructor Bodies
> https://openjdk.org/jeps/513
>
> Summary: In the body of a constructor, allow statements to appear
> before an explicit constructor invocation, i.e., super(...) or
> this(...). Such statements cannot reference the object under
> construction, but they can initialize its fields and perform other safe
> computations. This change allows many constructors to be expressed
> more naturally. It also allows fields to be initialized before they
> become visible to other code in the class, such as methods called from
> a superclass constructor, thereby improving safety.
>
> 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 21:00 UTC on Tuesday, 6 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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