RFR: 8314323: Implement JEP 527: TLS 1.3 Hybrid Key Exchange [v9]

[Sean Mullan]

On Wed, 26 Nov 2025 19:46:38 GMT, Bradford Wetmore <wetmore at openjdk.org> wrote:

>> Could this class could be renamed to something more meaningful?  e.g. `DHasKEM`, `DHasaKEM` or something similar.   A class name of `DH` by itself hints this will be a DH implementation.  I would expect a `KeyAgreement` impl, not as a wrapper.
>
> One other nit, currently the `Params` class doesn't actually handle `DH`, just `ECDH`/`XDH`.  Should you remove `DH` from the `DH/ECDH/XDH` javadoc?

Also, if it is only used by JSSE, I think it should be in the `sun.security.ssl` package.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27614#discussion_r2577682240