RFR: 8349910: Implement HTTP/3 for the HTTP Client API [v2]

[Sean Mullan]

On Thu, 24 Apr 2025 16:59:45 GMT, Daniel Fuchs <dfuchs at openjdk.org> wrote:

>> Hi,
>> 
>> Please find here a PR for the implementation of JEP [JDK-8291976: HTTP/3 for the HTTP Client API](https://bugs.openjdk.org/browse/JDK-8291976).
>> 
>> The CSR can be viewed at [JDK-8350588: Implement HTTP/3 for the HTTP Client API](https://bugs.openjdk.org/browse/JDK-8350588)
>> 
>> This JEP proposes to enhance the HttpClient implementation to support HTTP/3.
>> It adds a non-exposed / non-exported internal implementation of the QUIC protocol based on DatagramChannel and the SunJSSE SSLContext provider.
>
> Daniel Fuchs has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 409 commits:
> 
>  - merge latest changes from master branch
>  - http3: add missing <p> separator to Http3DiscoveryMode.ALT_SVC API documentation
>  - http3: improve documentation for Http3DiscoveryMode.ALT_SVC
>  - http3: Use AlgorithmConstraints and OCSP responses when validating server certificate during QUIC TLS handshake
>  - http3: Artur's review - use SecurityUtils.removeFromDisabledTlsAlgs() in test
>  - http3: minor improvement to log message
>  - http3: Artur's review - remove commented out code from test
>  - http3: Artur's review - make methods package private
>  - http3: qpack - allow 0 capacity when max capacity is 0
>  - Remove flow control from stream limit comments
>  - ... and 399 more: https://git.openjdk.org/jdk/compare/1ec64811...4da61bbe

test/jdk/java/net/httpclient/http3/H3QuicTLSConnection.java line 130:

> 128:                             + "expect UnsupportedProtocolVersionException",
> 129:                     () -> connect(uriString, new SSLParameters(
> 130:                             new String[] { "SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA" },

Shouldn't this be "TLS_AES_128_GCM_SHA256" (per the test comment above)?

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PR Review Comment: https://git.openjdk.org/jdk/pull/24751#discussion_r2064322739