RFR: 8349910: Implement JEP 517: HTTP/3 for the HTTP Client API [v7]

[Jaikiran Pai]

On Wed, 25 Jun 2025 19:48:47 GMT, Artur Barashev <abarashev at openjdk.org> wrote:

>> Hello Artur, we currently don't expose the `HandshakeContext` outside of the `QuicTLSEngineImpl`. The `HandshakeContext` is what is needed to get the relevant user specified algorithm constraints. So I decided to let the `HandshakeContext` be an internal detail in `QuicTLSEngineImpl` and introduce the `getAlgorithmConstraints()` method on it. Do you think we should hand out the `HandshakeContext` outside of `QuicTLSEngineImpl`?
>
> Hi Jaikiran! Sounds good. It's likely we are going to re-work this code anyhow when we make QUIC engine public in the next iteration. We had a discussion with Daniel about it today.

Thank you Artur.

@dfuch this conversation can be resolved too.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/24751#discussion_r2167888998