Hi, I hope you can give me a little idea what goes wrong with my MDB. I really double checked all settings in jbossmq.xml, jboss.xml, ejb-jar.xml according to your example and am sure that anything should work because the error I get is happening after I start to send a message to the queue my mdb is listeneing on. I tried with jboss-2.2.2 and tomcat 3.2.2 and also using jboss-2.4.0 with tomcat 3.2.3 From the Log: ConnectionReceiver: Receive(ReceiveRequest[1]) SpyConnectionConsumer:Queue@testQueue <mailto:SpyConnectionConsumer:Queue@testQueue>->addMessage(mes=org.jbossmq.SpyObjectMessage@7cdb7e <mailto:mes=org.jbossmq.SpyObjectMessage@7cdb7e>) SpyConnectionConsumer:Queue@testQueue <mailto:SpyConnectionConsumer:Queue@testQueue>->processMessages() SpyConnectionConsumer:Queue@testQueue <mailto:SpyConnectionConsumer:Queue@testQueue> Starting the ServerSession. SpySession: run() 23:38:12 INFO [Thread Pool Worker:] JBossMQService.logToCategory Exception in JMSCI message listener: : java.lang.NoSuchMethodException In the error log I get the following stack trace: java.lang.NoSuchMethodException at java.lang.Class.getMethod0(Native Method) at java.lang.Class.getMethod(Class.java:888) at org.jboss.ejb.MessageDrivenEnterpriseContext.<init>(MessageDrivenEnterpriseContext.java:65) at org.jboss.ejb.plugins.MessageDrivenInstancePool.create(MessageDrivenInstancePool.java:48) at org.jboss.ejb.plugins.AbstractInstancePool.get(AbstractInstancePool.java:106) at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:50) at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:128) at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:195) at org.jboss.ejb.MessageDrivenContainer.invoke(MessageDrivenContainer.java:281) at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:150) at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:495) at org.jbossmq.SpyMessageConsumer.deliverMessage(SpyMessageConsumer.java:296) at org.jbossmq.SpySession.run(SpySession.java:218) at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:132) at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:655) at java.lang.Thread.run(Thread.java:484) I hope someone of you can get somthing out of these Information I am really frustrated because I have even not found any entry in the mailing list archives. Many thanks in advance Torsten Glunde _______________________________________________ Jboss-development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development