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List:       synapse-dev
Subject:    [jira] Created: (SYNAPSE-592) If a url with a space submitted to
From:       "Supun Kamburugamuva (JIRA)" <jira () apache ! org>
Date:       2009-10-13 22:47:31
Message-ID: 739410503.1255474051458.JavaMail.jira () brutus
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If a url with a space submitted to the synapse, nhttp transport goes in to an \
                infinite loop
-------------------------------------------------------------------------------------------


                 Key: SYNAPSE-592
                 URL: https://issues.apache.org/jira/browse/SYNAPSE-592
             Project: Synapse
          Issue Type: Bug
            Reporter: Supun Kamburugamuva
         Attachments: SYNAPSE-592.patch

I've submitted an invalid url (a url with a space) to synapse. When this happens NIO \
transport goes to an infinite loop. It shows the following exception repeatedly. The \
reason for this is a Null point exception. 

In case of HTTP error, synapse ServerHandler doesn't get called for the input. But \
the outputready method of the ServerHandler is called. In the output ready method we \
check a output buffer variable. But since the input is not given to syanpse this \
buffer is not set. Resulting in the null point. I've done a simple fix to avoid this. \
But I think this should be handled in the HTTP Core Nio level. It shouldn't call the \
output ready method when there is an error.

2009-10-13 15:07:46,671 [-] [http-Listener I/O dispatcher-1]  WARN \
HttpCoreNIOListener System may be unstable: IOReactor encountered a runtime exception \
: null java.lang.NullPointerException
        at org.apache.synapse.transport.nhttp.ServerHandler.outputReady(ServerHandler.java:209)
                
        at org.apache.http.impl.nio.DefaultNHttpServerConnection.produceOutput(DefaultNHttpServerConnection.java:207)
                
        at org.apache.http.impl.nio.DefaultServerIOEventDispatch.outputReady(DefaultServerIOEventDispatch.java:153)
                
        at org.apache.http.impl.nio.reactor.BaseIOReactor.writable(BaseIOReactor.java:185)
                
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:342)
                
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:319)
                
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:275)
                
        at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
                
        at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:528)
  at java.lang.Thread.run(Thread.java:595)
2009-10-13 15:07:46,750 [-] [http-Listener I/O dispatcher-1]  WARN \
HttpCoreNIOListener System may be unstable: IOReactor encountered a runtime exception \
: null java.lang.NullPointerException
        at org.apache.synapse.transport.nhttp.ServerHandler.outputReady(ServerHandler.java:209)
                
        at org.apache.http.impl.nio.DefaultNHttpServerConnection.produceOutput(DefaultNHttpServerConnection.java:207)
                
        at org.apache.http.impl.nio.DefaultServerIOEventDispatch.outputReady(DefaultServerIOEventDispatch.java:153)
                
        at org.apache.http.impl.nio.reactor.BaseIOReactor.writable(BaseIOReactor.java:185)
                
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:342)
                
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:319)
                
        at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:275)
                
        at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
                
        at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:528)
  at java.lang.Thread.run(Thread.java:595)
2009-10-13 15:07:46,843 [-] [http-Listener I/O dispatcher-1]  WARN \
HttpCoreNIOListener System may be unstable: IOReactor encountered a runtime exception \
: null java.lang.NullPointerException

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