onMessage method does not receive message

[honeychen03]

First I am using JBoss 6.0.0.Final.

Is there any other things that I need to do?

I configured following in my MDB

@MessageDriven(activationConfig =

{

        @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/com.globalsight.everest.jms.WorkflowAdditions"),

        @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),

        @ActivationConfigProperty(propertyName = "subscriptionDurability", propertyValue = "Durable")})

and added below queue into hornetq-jms.xml

<queue name="WorkflowAdditions">

    <entry name="queue/com.globalsight.everest.jms.WorkflowAdditions"/>

</queue>

JBoss started correctly BUT after jms sends the messge, the onMessage method does not receive the messge in. Note: I have removed ejb-jar.xml and jboss.xml for these ejb configurations (only for MDB)

Please advise.

[nickarls]

See in the log that the queue is created?

[honeychen03]

You mean the jboss console? no queue created log in the console after I quit using the ejb-jar xml and jboss.xml. Any more is needed to do?

[nickarls]

Try making a typo in the queue name of the MDB, I think deploy should fail if the queue is not found (at least then we'll know if there is a queue or not)

[honeychen03]

Do you mean this name <queue name="WorkflowAdditions">? This name is just a meaningless string. Does it need to be pointing to somewhere?

[nickarls]

Try

@ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/ladjflajksdflkajsdflkjasfd"),

If it fails to deploy (and it deployed before) it means that the original queue existed.

[honeychen03]

BTW, the jms message is sent successfully. Following is the code:

Context context = s_appServer.getNamingContext();

        Queue queue = (Queue) context.lookup("queue/com.globalsight.everest.jms.WorkflowAdditions");

        QueueSender sender = s_queueSession.createSender(queue);

        ObjectMessage om = s_queueSession.createObjectMessage(p_msg);

        sender.send(om);

        sender.close();

But there is no response in the onMessage() method. Why?

[nickarls]

Show the code of the MDB. How is it deployed?

[honeychen03]

I just removed ejb-jar.xml and jboss.xml which were successfully deployed with the MDBs.

And then added annotation in the MDB. No other changes were made. I thought it could be easily working. Currently for the MDB configuration, only hornetq-configuration.xml and hornetq-jms.xml are put at .ear\META-INF directory.

Here is the main content of the MDB:

@MessageDriven(activationConfig =

{

        @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/com.globalsight.everest.jms.WorkflowAdditions"),

        @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),

        @ActivationConfigProperty(propertyName = "subscriptionDurability", propertyValue = "Durable")})

@TransactionManagement(value = TransactionManagementType.BEAN)

/**

* This is the concrete implementation of the WorkflowAdditionListener.

*/

public class WorkflowAdditionMDB extends GenericQueueMDB

{

public WorkflowAdditionMDB()

    {

        super();

    }

@Override

    public void onMessage(Message p_cxeRequest)

    {

        ....

     }

}

GenericQueueMDB is an abstract class implemented MessageDrivenBean and MessageListener.

I also tried the class name like this public class WorkflowAdditionMDB implements MessageListener but the same result.

[jaikiran]

Where exactly in the .ear is this class located? Can you post the output of:

jar -tf yourapp.ear

[honeychen03]

The class is packaged in my project jar located at deploy\myproject.ear\lib\myproject.jar and the location of the class in the jar is com/globalsight/everest/workflowmanager/WorkflowAdditionMDB.class.

BTW, myproject.ear is just a folder under deploy directory, not a jar.

[jaikiran]

The EJB annotations (and other Java EE component annotations) will not be scanned for jars in .ear/lib folder. So move it to the root of the .ear at myproject.ear/myproject.jar.

[honeychen03]

Then this will not affect to find other classes from myproject.jar? Does putting the jar in .ear\lib and .ear have difference during runtime of my system?

[jaikiran]

just lee wrote:

Then this will not affect to find other classes from myproject.jar?

You can put your interfaces and other libraries which need to be accessed by other classes, in the .ear/lib folder. But component implementation classes like this MDB (which shouldn't be referred to by other classes) shouldn't be part of the jars in .ear/lib.

[honeychen03]

Sorry, forgive me. I am a bit new to jboss. Can you explain a little bit about what component implementation classes are so that I can tell what classes should be put in.ear and what classes go to .ear/lib?