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From "Daniel Aioanei (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-906) Exception does not lead to redelivery for AUTO_ACKNOWLEDGE
Date Thu, 31 Aug 2006 14:49:23 GMT
Exception does not lead to redelivery for AUTO_ACKNOWLEDGE
----------------------------------------------------------

                 Key: AMQ-906
                 URL: https://issues.apache.org/activemq/browse/AMQ-906
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 4.0.1
            Reporter: Daniel Aioanei


I have a message driven pojo configured configured with with auto_acknowledge, nontransactional
and some persistent message in a queue. All my mdp does it to throw new RuntimeException("please
retry") but unfortunately the messages are not retried:

SEVERE: error dispatching message: 
java.lang.RuntimeException: Please retry
	at net.activem.jms.ExceptionTestOutboundMdp.onMessage(ExceptionTestOutboundMdp.java:46)
	at org.jencks.LocalTransactionEndpoint.onMessage(LocalTransactionEndpoint.java:68)
	at org.apache.activemq.ra.MessageEndpointProxy$MessageEndpointAlive.onMessage(MessageEndpointProxy.java:120)
	at org.apache.activemq.ra.MessageEndpointProxy.onMessage(MessageEndpointProxy.java:60)
	at org.apache.activemq.ActiveMQSession.run(ActiveMQSession.java:692)
	at org.apache.activemq.ra.ServerSessionImpl.run(ServerSessionImpl.java:163)
	at org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:291)
	at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown Source)

Looking in the ActiveMQ source code I think the problem might be in these lines:

            try { 
                messageListener.onMessage(message);
            } catch ( Throwable e ) {  
                // TODO: figure out proper way to handle error.
                log.error("error dispatching message: ",e);
                connection.onAsyncException(e);
            }

	at java.lang.Thread.run(Thread.java:595)


found in org.apache.activemq.ActiveMQSession.

According to JMS spec, I'd say that with auto_ack a msg should be retried in case the message
listener throws an exception, even if the operation is non-transactional:

http://java.sun.com/j2ee/1.4/docs/api/javax/jms/Session.html#AUTO_ACKNOWLEDGE

public static final int AUTO_ACKNOWLEDGE

    With this acknowledgment mode, the session automatically acknowledges a client's receipt
of a message either when the session has successfully returned from a call to receive or when
the message listener the session has called to process the message successfully returns.



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