JBoss 5.1 -> 4.2 compatibility: javax.naming.Reference cannot be cast to javax.jms.Queue

[mihbor]

Hi,

We're trying to to lookup a JMS Queue that resides on JBoss-4.2.2 from an ear deployed in JBoss 5.1.0 (specifically sar packaged inside and ear)

We are getting:

java.lang.ClassCastException: javax.naming.Reference cannot be cast to javax.jms.Queue
        at pl.bluepay.utils.jms.MDBUtil.getQueue(MDBUtil.java:56)

I understand this is related to incompatible changes in the client libs between the versions.

We tried putting jbossall-client.jar from JBoss-4.2.2 inside the ear (classloader isolation is enabled in the ear-deployer), and referenced it from the sar's MANIFEST file, but this caused the thread to hang.

Does anybody know a solution?

[sweetlandj]

This was posted some time ago, but it comes up as one of the top results on a Google search, so I thought I'd post a reply to save others some time.  I had this same issue until I copied jbossmq.jar (from JBoss 4.2.x) into my JBoss 5 $SERVER/lib directory.  The hint came from the JBoss Messaging installation guide, section 4.6.1, found here:

http://docs.jboss.org/jbossmessaging/docs/userguide-1.4.1.GA/html/installation.html