Is it possible to configure HTTPClient to support HTTP/1.1, HTTP/2 and HTTP/3 simultaneously?

[cowwoc]

Jetty Version
12.0.3

Java Version
openjdk version "21.0.1" 2023-10-17 LTS
OpenJDK Runtime Environment Zulu21.30+15-CA (build 21.0.1+12-LTS)
OpenJDK 64-Bit Server VM Zulu21.30+15-CA (build 21.0.1+12-LTS, mixed mode, sharing)

Question
When I configure HttpClient as follows:

SslContextFactory.Client sslContextFactory = new SslContextFactory.Client();
sslContextFactory.setKeyStorePath("keystore/keystore.p12");
sslContextFactory.setKeyStorePassword("changeit");
Security.addProvider(new OpenSSLProvider());
sslContextFactory.setProvider("Conscrypt");

sslContextFactory.setTrustAll(true);
sslContextFactory.setHostnameVerifier((hostName, _) -> hostName.endsWith("localhost"));

ClientConnectionFactory.Info http11 = HttpClientConnectionFactory.HTTP11;

HTTP2Client http2Client = new HTTP2Client();
http2Client.getClientConnector().setSslContextFactory(sslContextFactory);
ClientConnectionFactory.Info http2 = new ClientConnectionFactoryOverHTTP2.HTTP2(http2Client);

HTTP3Client http3Client = new HTTP3Client();
http3Client.getClientConnector().setSslContextFactory(sslContextFactory);
clientConnectionFactory.Info http3 = new ClientConnectionFactoryOverHTTP3.HTTP3(http3Client);

ttpClientTransport transport = new HttpClientTransportDynamic(http3, http2, http11);
HttpClient client = new HttpClient(transport);
client.setSslContextFactory(sslContextFactory);

and try hitting a server endpoint that supports HTTP/1.1, HTTP/2 and HTTP/3, I get:

java.lang.ClassCastException: class org.eclipse.jetty.http2.client.HTTP2ClientConnectionFactory$HTTP2ClientConnection cannot be cast to class org.eclipse.jetty.http3.HTTP3StreamConnection (org.eclipse.jetty.http2.client.HTTP2ClientConnectionFactory$HTTP2ClientConnection is in module [email protected] of loader 'app'; org.eclipse.jetty.http3.HTTP3StreamConnection is in module [email protected] of loader 'app')

	at [email protected]/org.eclipse.jetty.http3.HTTP3Session.newHTTP3Stream(HTTP3Session.java:303)
	at [email protected]/org.eclipse.jetty.http3.HTTP3Session.lambda$createStream$3(HTTP3Session.java:278)
	at java.base/java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1916)
	at [email protected]/org.eclipse.jetty.http3.HTTP3Session.createStream(HTTP3Session.java:274)
	at [email protected]/org.eclipse.jetty.http3.client.HTTP3SessionClient.newRequest(HTTP3SessionClient.java:114)
	at [email protected]/org.eclipse.jetty.http3.client.HTTP3SessionClient.newRequest(HTTP3SessionClient.java:97)
	at [email protected]/org.eclipse.jetty.http3.client.transport.internal.HttpSenderOverHTTP3.sendHeaders(HttpSenderOverHTTP3.java:131)
	at [email protected]/org.eclipse.jetty.client.transport.HttpSender$ContentSender.process(HttpSender.java:515)
	at [email protected]/org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:243)
	at [email protected]/org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224)
	at [email protected]/org.eclipse.jetty.client.transport.HttpSender.send(HttpSender.java:85)
	at [email protected]/org.eclipse.jetty.http3.client.transport.internal.HttpChannelOverHTTP3.send(HttpChannelOverHTTP3.java:82)
	at [email protected]/org.eclipse.jetty.client.transport.HttpChannel.send(HttpChannel.java:137)
	at [email protected]/org.eclipse.jetty.client.transport.HttpConnection.send(HttpConnection.java:112)
	at [email protected]/org.eclipse.jetty.http3.client.transport.internal.HttpConnectionOverHTTP3.send(HttpConnectionOverHTTP3.java:85)
	at [email protected]/org.eclipse.jetty.client.transport.HttpDestination.send(HttpDestination.java:422)
	at [email protected]/org.eclipse.jetty.client.transport.HttpDestination.process(HttpDestination.java:398)
	at [email protected]/org.eclipse.jetty.client.transport.HttpDestination.process(HttpDestination.java:353)
	at [email protected]/org.eclipse.jetty.client.transport.HttpDestination.send(HttpDestination.java:336)
	at [email protected]/org.eclipse.jetty.client.transport.HttpDestination.succeeded(HttpDestination.java:269)
	at [email protected]/org.eclipse.jetty.client.AbstractConnectionPool.proceed(AbstractConnectionPool.java:315)
	at [email protected]/org.eclipse.jetty.client.AbstractConnectionPool$FutureConnection.succeeded(AbstractConnectionPool.java:576)
	at [email protected]/org.eclipse.jetty.client.AbstractConnectionPool$FutureConnection.succeeded(AbstractConnectionPool.java:554)
	at [email protected]/org.eclipse.jetty.util.Promise$Wrapper.succeeded(Promise.java:195)
	at [email protected]/org.eclipse.jetty.http3.client.transport.internal.SessionClientListener.onSettings(SessionClientListener.java:53)
	at [email protected]/org.eclipse.jetty.http3.HTTP3Session.notifySettings(HTTP3Session.java:382)
	at [email protected]/org.eclipse.jetty.http3.HTTP3Session.onSettings(HTTP3Session.java:375)
	at [email protected]/org.eclipse.jetty.http3.client.HTTP3SessionClient.onSettings(HTTP3SessionClient.java:90)
	at [email protected]/org.eclipse.jetty.http3.parser.BodyParser.notifySettings(BodyParser.java:106)
	at [email protected]/org.eclipse.jetty.http3.parser.SettingsBodyParser.onSettings(SettingsBodyParser.java:138)
	at [email protected]/org.eclipse.jetty.http3.parser.SettingsBodyParser.parse(SettingsBodyParser.java:114)
	at [email protected]/org.eclipse.jetty.http3.parser.ControlParser.parse(ControlParser.java:116)
	at [email protected]/org.eclipse.jetty.http3.internal.ControlStreamConnection.onFillable(ControlStreamConnection.java:89)
	at [email protected]/org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:322)
	at [email protected]/org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
	at [email protected]/org.eclipse.jetty.quic.common.QuicStreamEndPoint.onReadable(QuicStreamEndPoint.java:252)
	at [email protected]/org.eclipse.jetty.http3.client.ClientHTTP3Session.onReadable(ClientHTTP3Session.java:244)
	at [email protected]/org.eclipse.jetty.quic.common.ProtocolSession.processReadableStreams(ProtocolSession.java:130)
	at [email protected]/org.eclipse.jetty.quic.common.ProtocolSession$StreamsProducer.produce(ProtocolSession.java:222)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.produceTask(AdaptiveExecutionStrategy.java:512)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:258)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.produce(AdaptiveExecutionStrategy.java:195)
	at [email protected]/org.eclipse.jetty.quic.common.ProtocolSession.produce(ProtocolSession.java:78)
	at [email protected]/org.eclipse.jetty.quic.client.ClientProtocolSession.lambda$new$0(ClientProtocolSession.java:31)
	at [email protected]/org.eclipse.jetty.util.thread.Invocable$ReadyTask.run(Invocable.java:105)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:478)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:426)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.produce(AdaptiveExecutionStrategy.java:195)
	at [email protected]/org.eclipse.jetty.quic.common.QuicConnection.onFillable(QuicConnection.java:165)
	at [email protected]/org.eclipse.jetty.quic.client.ClientQuicConnection.onFillable(ClientQuicConnection.java:127)
	at [email protected]/org.eclipse.jetty.quic.common.QuicConnection$FillableCallback.succeeded(QuicConnection.java:426)
	at [email protected]/org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
	at [email protected]/org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
	at [email protected]/org.eclipse.jetty.util.thread.Invocable.invokeNonBlocking(Invocable.java:156)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.invokeAsNonBlocking(AdaptiveExecutionStrategy.java:495)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:431)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293)
	at [email protected]/org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.produce(AdaptiveExecutionStrategy.java:195)
	at [email protected]/org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:971)
	at [email protected]/org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1196)
	at [email protected]/org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1151)

Is this a bug or a configuration error on my part?

[cowwoc]

It looks like this issue is blocked by #8979

If you agree, please close this issue and I will wait for the aforementioned issue to get fixed.

[sbordet]

Yes, it's currently not possible to support TCP-based transports with UDP-based transports.

[sbordet]

It will be possible to perform TCP-based requests with UDP-based requests in the same HttpClient when #8979 is fixed.

[sbordet]

@cowwoc can you please try #11368 and see if you can now use the same HttpClient for all HTTP versions?
We have a test for that case, but would be great if you can confirm. Thanks!