WAS7 message listener error, MQQueue incompatible wih MQDestination

Question

while trying to startup one message-listener-port in was7. I have checked all the Connection factory JNDI & Destination JNDI names, everything looks ok. And I can able to browse the queue in the terminal as well.

Pls help!

[1/13/12 17:21:26:259 GMT+08:00] 00000029 MDBListenerIm W WMSG0019E: Unable to start MDB Listener ods, JMSDestination jms/quexx : java.lang.ClassCastException: com.ibm.mq.jms.MQQueue incompatible with com.ibm.mq.jms.MQDestination at com.ibm.mq.jms.MQConnection.createConnectionConsumer(MQConnection.java:210) at com.ibm.ejs.jms.JMSConnectionHandle.createConnectionConsumer(JMSConnectionHandle.java:1272) at com.ibm.ejs.jms.listener.MDBListenerImpl.createResources(MDBListenerImpl.java:542) at com.ibm.ejs.jms.listener.MDBListenerImpl.internalStart(MDBListenerImpl.java:730) at com.ibm.ejs.jms.listener.MDBListenerImpl.start(MDBListenerImpl.java:653) at com.ibm.ejs.jms.listener.MDBListenerManagerImpl.start(MDBListenerManagerImpl.java:851) at com.ibm.ejs.jms.listener.MsgListenerPort.start(MsgListenerPort.java:317) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:600) at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:37) at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:600) at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:244) at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1086) at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:967) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761) at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1332) at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118) at com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:1225) at com.ibm.ws.management.connector.AdminServiceDelegator.invoke(AdminServiceDelegator.java:181) at com.ibm.ws.management.connector.ipc.CallRouter.route(CallRouter.java:242) at com.ibm.ws.management.connector.ipc.IPCConnectorInboundLink.doWork(IPCConnectorInboundLink.java:353) at com.ibm.ws.management.connector.ipc.IPCConnectorInboundLink$IPCConnectorReadCallback.complete(IPCConnectorInboundLink.java:595) at com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1772) at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:816) at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1563)

[1/13/12 17:21:26:264 GMT+08:00] 00000029 MDBListenerIm I WMSG0043I: MDB Listener lpquexx stopped for JMSDestination jms/quexx [1/13/12 17:21:26:266 GMT+08:00] 00000029 MDBListenerIm I WMSG0058I: Listener Port lpquexx will attempt to restart in 60 seconds

Answer 1

That sounds like a class loader issue, i.e. a class loaded by the container is clashing with a class loaded by your application.

Any chance you've accidentally included an MQ JAR somewhere in your app?