RFR: 8314323: Implement JEP 527: TLS 1.3 Hybrid Key Exchange [v14]

[Weijun Wang]

On Fri, 5 Dec 2025 16:37:04 GMT, Hai-May Chao <hchao at openjdk.org> wrote:

>> Implement hybrid key exchange support for TLS 1.3 by adding three post-quantum hybrid named groups: X25519MLKEM768, SecP256r1MLKEM768, and SecP384r1MLKEM1024.
>> Please see [JEP 527](https://openjdk.org/jeps/527) for details about this change.
>
> Hai-May Chao has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Updates with Weijun's comments
>  - Comments added for possession creation per handshake

src/java.base/share/classes/sun/security/ssl/Hybrid.java line 143:

> 141: 
> 142:         @Override
> 143:         public void initialize(AlgorithmParameterSpec params,

Since you initialize here, is it still necessary to init inside the constructor?

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PR Review Comment: https://git.openjdk.org/jdk/pull/27614#discussion_r2593546269