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From "Paul Donohue (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCORE-322) SSLIOSession infinite loop after alert during handshake
Date Thu, 15 Nov 2012 16:48:12 GMT
Paul Donohue created HTTPCORE-322:
-------------------------------------

             Summary: SSLIOSession infinite loop after alert during handshake
                 Key: HTTPCORE-322
                 URL: https://issues.apache.org/jira/browse/HTTPCORE-322
             Project: HttpComponents HttpCore
          Issue Type: Bug
          Components: HttpCore NIO
            Reporter: Paul Donohue
            Priority: Critical


I have an application using httpcore-nio that occasionally gets stuck in an infinite loop
in SSLIOSession:
"I/O dispatcher 1" prio=10 tid=0x00002aaab82da000 nid=0x5448 runnable [0x000000004271c000]
   java.lang.Thread.State: RUNNABLE
        at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:767)
        - locked <0x00000000a4f03420> (a sun.security.ssl.SSLEngineImpl)
        at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:719)
        - locked <0x00000000a51faaa0> (a java.lang.Object)
        at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624)
        at org.apache.http.nio.reactor.ssl.SSLIOSession.doUnwrap(SSLIOSession.java:228)
        at org.apache.http.nio.reactor.ssl.SSLIOSession.decryptData(SSLIOSession.java:348)
        at org.apache.http.nio.reactor.ssl.SSLIOSession.isAppInputReady(SSLIOSession.java:371)
        - locked <0x00000000a4f03498> (a org.apache.http.nio.reactor.ssl.SSLIOSession)
        at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:118)
        at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:160)
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:342)
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:320)
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:280)
        at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:106)
        at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:604)
        at java.lang.Thread.run(Thread.java:636)

In the above example, I was able to determine that this behavior was caused by a client sending
a ClientHello that resumed an established session, immediately followed by a CloseNotify Alert.
 This sequence only sometimes triggers the infinite loop, so the problem appears to be timing
related.  I get the feeling that there are other sequences that may trigger this, but I don't
have any other concrete examples at the moment.

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