CLIENT_ACKNOWLEDGE not working with DefaultMessageListener

[vishalj]

Hi,
I am trying to acknowledge the message in my MessageListener implementation by making a call to jmsMessage.acknowledge() but even before this call happens the message is removed from Queue

Setting:
ActiveMQ 5.4.2
Spring 3.0.0

<jms:listener-container connection-factory="receiverConnectionFactory" acknowledge="client" >
    	<jms:listener destination="${queue}" ref="jmsMessageListener" />
    </jms:listener-container>

Regards,
Vishal

[beaupral]

According to Spring Javadoc :

* "sessionAcknowledgeMode" set to "AUTO_ACKNOWLEDGE" (default): Automatic message acknowledgment before listener execution; no redelivery in case of exception thrown.
* "sessionAcknowledgeMode" set to "CLIENT_ACKNOWLEDGE": Automatic message acknowledgment after successful listener execution; no redelivery in case of exception thrown.
* "sessionAcknowledgeMode" set to "DUPS_OK_ACKNOWLEDGE": Lazy message acknowledgment during or after listener execution; potential redelivery in case of exception thrown.
* "sessionTransacted" set to "true": Transactional acknowledgment after successful listener execution; guaranteed redelivery in case of exception thrown.


I think the reason why the message disappears from the queue as soon as you read it is to avoid duplicate read of the same message. I *think* it can be returned if it doesn't get acknowledged...