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https://issues.apache.org/jira/browse/HTTPCLIENT-2122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17219119#comment-17219119
]
ASF subversion and git services commented on HTTPCLIENT-2122:
-------------------------------------------------------------
Commit 90bc5123fdf390a822d09d26d6b87c7b4c92d253 in httpcomponents-client's
branch refs/heads/master from Oleg Kalnichevski
[ https://gitbox.apache.org/repos/asf?p=httpcomponents-client.git;h=90bc512 ]
HTTPCLIENT-2122: async client to throw `HTTP/2 tunneling not supported`
protocol exception in case of `force HTTP/2` version policy used along with
request proxy routing
> Details of H2ConnectionException are omitted by ConnectionClosedException
> -------------------------------------------------------------------------
>
> Key: HTTPCLIENT-2122
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2122
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (async)
> Affects Versions: 5.0.3
> Reporter: synth3
> Priority: Major
> Labels: http2, proxy
> Fix For: 5.0.4, 5.1-beta1
>
> Attachments: hc5_session.log
>
>
> As said in a comment of ticket HTTPCLIENT-2120 following a description of the
> error handling issue:
> When I unbiasedly tried to establish a HTTP/2 connection via HTTP-Proxy I
> noticed that in the logs there is a frame size error that is not obvious from
> the exception thrown by {{Future<SimpleHttpResponse>}}{{.get()}}:
> * In the logs I can see {{Code FRAME_SIZE_ERROR}} and {{Frame size exceeds
> maximum}} which might be caused by trying to consume the HTTP-1.1 proxy
> response as HTTP/2
> ** The associated Exception ({{H2ConnectionException: Frame size exceeds
> maximum}}) is omitted in
> {{org.apache.hc.core5.http2.impl.nio.AbstractH2StreamMultiplexer.onException(Exception)}}
> where {{((ExecutableCommand) command).failed(new
> ConnectionClosedException())}} is called
> The following snipped can be used to reproduce the issue ({{coconutpi:8080}}
> points to a basic squid 4.6 setup on a raspberry pi in my home network):
> {code:java}
> CloseableHttpAsyncClient client =
> HttpAsyncClients.custom().setVersionPolicy(HttpVersionPolicy.FORCE_HTTP_2)
> .setProxy(HttpHost.create("coconutpi:8080")).build();
> client.start();
> // throws org.apache.hc.core5.http.ConnectionClosedException: Connection is
> closed
> client.execute(SimpleHttpRequests.get("https://http2.pro/client";),
> null).get();
> {code}
> StackTrace of exception thrown by {{Future<SimpleHttpResponse>.get()}}:
> {code:java}
> ava.util.concurrent.ExecutionException:
> org.apache.hc.core5.http.ConnectionClosedException: Connection is closed
> at
> org.apache.hc.core5.concurrent.BasicFuture.getResult(BasicFuture.java:72)
> at org.apache.hc.core5.concurrent.BasicFuture.get(BasicFuture.java:85)
> at com.test.MinimalProxyTest.basicTest(MinimalProxyTest.java:40)
> at com.test.MinimalProxyTest.main(MinimalProxyTest.java:26)
> Caused by: org.apache.hc.core5.http.ConnectionClosedException: Connection is
> closed
> at
> org.apache.hc.core5.http2.impl.nio.AbstractH2StreamMultiplexer.onException(AbstractH2StreamMultiplexer.java:661)
> at
> org.apache.hc.core5.http2.impl.nio.AbstractH2IOEventHandler.exception(AbstractH2IOEventHandler.java:91)
> at
> org.apache.hc.core5.http2.impl.nio.ClientH2IOEventHandler.exception(ClientH2IOEventHandler.java:39)
> Caused by: org.apache.hc.core5.http.ConnectionClosedException: Connection is
> closed
> at
> org.apache.hc.core5.reactor.InternalDataChannel.onException(InternalDataChannel.java:162)
> at
> org.apache.hc.core5.reactor.InternalChannel.handleIOEvent(InternalChannel.java:55)
> at
> org.apache.hc.core5.reactor.SingleCoreIOReactor.processEvents(SingleCoreIOReactor.java:179)
> at
> org.apache.hc.core5.reactor.SingleCoreIOReactor.doExecute(SingleCoreIOReactor.java:128)
> at
> org.apache.hc.core5.reactor.AbstractSingleCoreIOReactor.execute(AbstractSingleCoreIOReactor.java:85)
> at
> org.apache.hc.core5.reactor.IOReactorWorker.run(IOReactorWorker.java:44)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {code}
> StackTrace of the omitted exception:
> {code:java}
> org.apache.hc.core5.http2.H2ConnectionException: Frame size exceeds maximum
> at
> org.apache.hc.core5.http2.impl.nio.FrameInputBuffer.read(FrameInputBuffer.java:101)
> at
> org.apache.hc.core5.http2.impl.nio.AbstractH2StreamMultiplexer.onInput(AbstractH2StreamMultiplexer.java:440)
> at
> org.apache.hc.core5.http2.impl.nio.AbstractH2IOEventHandler.inputReady(AbstractH2IOEventHandler.java:65)
> at
> org.apache.hc.core5.http2.impl.nio.ClientH2IOEventHandler.inputReady(ClientH2IOEventHandler.java:39)
> at
> org.apache.hc.core5.reactor.InternalDataChannel.onIOEvent(InternalDataChannel.java:124)
> at
> org.apache.hc.core5.reactor.InternalChannel.handleIOEvent(InternalChannel.java:51)
> at
> org.apache.hc.core5.reactor.SingleCoreIOReactor.processEvents(SingleCoreIOReactor.java:179)
> at
> org.apache.hc.core5.reactor.SingleCoreIOReactor.doExecute(SingleCoreIOReactor.java:128)
> at
> org.apache.hc.core5.reactor.AbstractSingleCoreIOReactor.execute(AbstractSingleCoreIOReactor.java:85)
> at
> org.apache.hc.core5.reactor.IOReactorWorker.run(IOReactorWorker.java:44)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {code}
> The complete session log can be found in the attachment [^hc5_session.log].
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