New candidate JEP: 513: Flexible Constructor Bodies

Iris Clark iris.clark at oracle.com
Tue Apr 22 17:22:32 UTC 2025


The following JEP with scope "SE" has been moved to the Candidate state:

  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.

A JEP in the Candidate state is a feature deemed worthy of consideration by
the JDK Project, but with no commitment to deliver the feature in any
particular release of the JDK Project. Later, the JEP may be moved to the
Targeted state, which indicates that the feature is expected to appear in a
specific release of the JDK Project.  For more information about states, see
the JEP Process document:

    https://openjdk.org/jeps/1

A JEP with "SE" scope that reaches the Targeted state will be listed in the
Specification of the Java SE Platform JSR which corresponds to the targeted
JDK Project release.

A dashboard that lists JEPs with "SE" scope may be found via a link on this
page:

    https://openjdk.org/projects/jdk/25/spec/

Thanks,
Iris


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