But I have seen an example in ejb-jar.xml like this in Ivan Krizan's study guide:
My notes is :<assembly-description>
<message-destination>
<message-destination-name> ...
//JNDI name of the a physical queue defined in the application server.
<lookup-name>jms/ForwardingTopic</lookup-name>
</message-destination>
</assembly-description>
application assembler can specify actual message destination in ejb-jar.xml.