Draft Spec for Second Preview of Implicit Classes and Instance Main Methods (JEP 463)

Gavin Bierman gavin.bierman at oracle.com
Thu Nov 2 00:38:33 UTC 2023

Dear experts:

The first draft of a spec covering JEP 463 (Implicit Classes and Instance Main Methods (Second Preview)) is now available at:


Feel free to contact me directly or on this list with any comments.


> On 1 Nov 2023, at 17:58, Mark Reinhold <mark.reinhold at oracle.com> wrote:
> https://openjdk.org/jeps/463
>  Summary: Evolve the Java programming language so that students can
>  write their first programs without needing to understand language
>  features designed for large programs. Far from using a separate dialect
>  of the language, students can write streamlined declarations for
>  single-class programs and then seamlessly expand their programs to use
>  more advanced features as their skills grow. This is a preview language
>  feature.
> - Mark

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