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From "Torsten Mielke (JIRA)" <>
Subject [jira] [Created] (AMQ-3430) activemq-web: SessionPool.returnSession() should discard sessions that are closed.
Date Mon, 01 Aug 2011 10:41:09 GMT
activemq-web: SessionPool.returnSession() should discard sessions that are closed. 

                 Key: AMQ-3430
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.5.0, 5.6.0
            Reporter: Torsten Mielke
             Fix For: 5.6.0

In activemq.web project, SessionPool.returnSession() does not check if the session is still
open. As long as the session isn't null, its returned back to the pool.
At least one customer reported a problem when using the web console for browsing a queue,
where the session was already closed. 

javax.jms.IllegalStateException: The Session is closed
at org.apache.activemq.ActiveMQSession.checkClosed(
at org.apache.activemq.ActiveMQSession.createQueue(
at org.apache.activemq.web.QueueBrowseQuery.getQueue(
at org.apache.activemq.web.QueueBrowseQuery.createBrowser(
at org.apache.activemq.web.QueueBrowseQuery.getBrowser(
at sun.reflect.GeneratedMethodAccessor125.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(
at javax.el.BeanELResolver.getValue(

Not sure what triggered the closure of the session, however once it is closed it should not
be returned to the pool but be discarded. If its not discarded, then the pool will always
return the closed session and any invocations on the session return an exception. Restarting
the broker is the only remedy.


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