Has the problem been solved. I am using Jboss 4.0.3 with no MDB.It is a simple JMS consumer inside of Jboss. 15:21:24,099 INFO [STDOUT] java.lang.ClassCastException: org.apache.activemq.command.ActiveMQQueue | 15:21:24,099 INFO [STDOUT] at org.jboss.mq.SpyQueueReceiver.<init>(SpyQueueReceiver.java:42) | 15:21:24,099 INFO [STDOUT] at org.jboss.mq.SpySession.createReceiver(SpySession.java:689) | 15:21:24,099 INFO [STDOUT] at org.jboss.mq.SpySession.createConsumer(SpySession.java:649) | 15:21:24,099 INFO [STDOUT] at org.jboss.mq.SpySession.createConsumer(SpySession.java:635) | .... | Please help me. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968323#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...