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List:       rampart-dev
Subject:    [jira] Created: (AXIS2-4759) JMS transport prevents clean Axis2
From:       "Grant Patterson (JIRA)" <jira () apache ! org>
Date:       2010-06-30 3:52:50
Message-ID: 18820791.126891277869970407.JavaMail.jira () thor
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JMS transport prevents clean Axis2 shutdown
-------------------------------------------

                 Key: AXIS2-4759
                 URL: https://issues.apache.org/jira/browse/AXIS2-4759
             Project: Axis2
          Issue Type: Bug
          Components: transports
    Affects Versions: 1.5.1
         Environment: Tomcat 6.0
Open MQ 4.3
            Reporter: Grant Patterson


JMSListener doesn't close its JMS connections on shutdown. Open MQ connections have \
two threads that terminate when the connection is closed (imqConnectionFlowControl-0 \
and iMQReadChannel-0). If the connection isn't closed on shutdown then these threads \
prevent Axis2 and Tomcat from shutting down normally.

ServiceTaskManager is responsible for the JMS connections. On shutdown, it calls \
Connection.stop() rather than Connection.close(). This pauses the connection rather \
than closing it, and in the case of Open MQ the two connection threads remain \
running.

I have fixed this issue and will upload a patch.

The patch replaces the stop() call with a close() call and fixes several other issues \
                with that were exposed once the connection was properly closed:
 - double-checked locking and synchronization on the wrong monitor when creating a \
                new shared connection
 - Qpid deadlocks if a session's connection is closed on another thread while the \
session is closing. This caused the unit tests to fail.

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