RFR: 8314323: Implement JEP 527: TLS 1.3 Hybrid Key Exchange [v4]

[Artur Barashev]

On Tue, 14 Oct 2025 20:38:25 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 one additional commit since the last revision:
> 
>   Call getProvider() in NamedGroup.java

test/jdk/javax/net/ssl/TLSCommon/NamedGroup.java line 42:

> 40:     FFDHE8192("ffdhe8192");
> 41: 
> 42:     X25519MLKEM768("X25519MLKEM768);

Invalid syntax: The matching quotation mark is missing,

test/jdk/javax/net/ssl/TLSCommon/NamedGroup.java line 43:

> 41: 
> 42:     X25519MLKEM768("X25519MLKEM768);
> 43:     SecP256r1MLKEM768("SecP256r1MLKEM768");

Invalid syntax: enums should be comma-separated.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27614#discussion_r2430617097
PR Review Comment: https://git.openjdk.org/jdk/pull/27614#discussion_r2430620520