Here is a snippet from the log: 2006-12-14 08:22:40,171 DEBUG [org.jboss.jms.server.endpoint.ServerConnectionEndpoint] ConnectionEndpoint[-2147483646] started 2006-12-14 08:22:40,171 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@e7f6eb, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@131cd12{ url=null ,addedOrder=0} 2006-12-14 08:22:40,171 DEBUG [org.jboss.jms.client.JBossSession] attempting to create consumer for destination:JBossQueue[B] 2006-12-14 08:22:40,187 DEBUG [org.jboss.jms.server.security.SecurityMetadataStore] No SecurityMetadadata was available for B, using default security config 2006-12-14 08:22:40,187 DEBUG [org.jboss.jms.server.endpoint.ServerSessionEndpoint] creating consumer for JBossQueue[B], selector null, subscription null 2006-12-14 08:22:40,187 DEBUG [org.jboss.jms.server.endpoint.ServerConsumerEndpoint] ConsumerEndpoint[-2147483644] constructed 2006-12-14 08:22:40,218 DEBUG [org.jboss.jms.server.ServerPeer] ServerPeer [server.0] caching consumer -2147483644 2006-12-14 08:22:40,218 DEBUG [org.jboss.jms.server.endpoint.ServerSessionEndpoint] created and registered ConsumerEndpoint[-2147483644] 2006-12-14 08:22:40,468 DEBUG [org.jboss.soa.esb.listeners.message.EsbListenerController] About to sleep 26141 2006-12-14 08:22:40,468 DEBUG [org.jboss.soa.esb.listeners.message.JmsQueueListener] run() method of JmsQueueListener started on thread Thread-27 2006-12-14 08:22:40,468 INFO [org.jboss.soa.esb.services.registry.RegistryException] Going to load null 2006-12-14 08:22:40,468 DEBUG [org.jboss.soa.esb.common.Factory] Using the Context ClassLoader 2006-12-14 08:22:40,468 FATAL [org.jboss.soa.esb.listeners.message.JmsQueueListener] Could not register service Invocation exception. null org.jboss.soa.esb.services.registry.RegistryException: Invocation exception. null at org.jboss.soa.esb.services.registry.RegistryFactory.getRegistry(RegistryFactory.java:49) at org.jboss.soa.esb.listeners.message.EsbListenerController.register(EsbListenerController.java:571) at org.jboss.soa.esb.listeners.message.JmsQueueListener.run(JmsQueueListener.java:87) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.NullPointerException at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at org.jboss.soa.esb.common.Factory.getClassForName(Factory.java:47) at org.jboss.soa.esb.services.registry.RegistryFactory.getRegistry(RegistryFactory.java:43) ... 3 more 2006-12-14 08:23:06,609 INFO [org.jboss.soa.esb.services.registry.RegistryException] Going to load null 2006-12-14 08:23:06,968 INFO [org.jboss.soa.esb.listeners.message.EsbListenerController] Reloading parameters _____________________________________________________ 2006-12-14 08:23:08,671 DEBUG [org.jboss.soa.esb.common.Factory] Using the Context ClassLoader 2006-12-14 08:23:08,671 WARN [org.jboss.soa.esb.listeners.message.JmsQueueListener] Could not un register service Invocation exception. null 2006-12-14 08:23:08,687 WARN [org.jboss.soa.esb.listeners.message.AbstractListener] Attribute maxThreads has not been set. Action pipeline will be processed by only one thread 2006-12-14 08:23:08,687 INFO [org.jboss.soa.esb.listeners.message.JmsQueueListener] Reading value for destination-name 2006-12-14 08:23:08,687 INFO [org.jboss.soa.esb.listeners.message.JmsQueueListener] Reading value for service-category 2006-12-14 08:23:08,687 INFO [org.jboss.soa.esb.listeners.message.JmsQueueListener] Reading value for service-name 2006-12-14 08:23:08,687 DEBUG [org.jboss.jms.client.remoting.MessageCallbackHandler] MessageCallbackHandler[-2147483644] closing 2006-12-14 08:23:08,687 DEBUG [org.jboss.soa.esb.listeners.message.JmsQueueListener] No value specified for: message-selector - All messages in queue will be received by this listener 2006-12-14 08:23:08,687 INFO [org.jboss.soa.esb.listeners.message.JmsQueueListener] Reading value for jndi-type 2006-12-14 08:23:08,687 INFO [org.jboss.soa.esb.listeners.message.JmsQueueListener] Reading value for jndi-URL 2006-12-14 08:23:08,687 INFO [org.jboss.soa.esb.listeners.message.JmsQueueListener] Reading value for connection-factory 2006-12-14 08:23:08,687 DEBUG [org.jboss.jms.client.container.ClosedInterceptor] ClosedInterceptor.ClientConsumerDelegate[-2147483644] closed 2006-12-14 08:23:08,703 DEBUG [org.jboss.jms.client.remoting.JMSRemotingConnection] JMSRemotingConnection[socket://10.84.0.4:4457/?clientSocketClass=org.jboss.jms.client.remoting.ClientSocketWrapper&dataType=jms&marshaller=org.jboss.jms.server.remoting.JMSWireFormat&serializationtype=jboss&socket.check_connection=false&unmarshaller=org.jboss.jms.server.remoting.JMSWireFormat] created 2006-12-14 08:23:08,703 DEBUG [org.jboss.remoting.transport.socket.SocketServerInvoker] ServerInvoker (org.jboss.remoting.transport.socket.SocketServerInvoker@1c330aa) added client callback handler org.jboss.jms.client.remoting.DummyCallbackHandler@7a6c34 with session id of a2c04-eb4k4s-evpbmlgb-1-evpbnrj3-d+a2c04-eb4k4s-evpbmlgb-1-evpbnrj3-e and callback handle object of null. 2006-12-14 08:23:08,703 DEBUG [org.jboss.jms.server.ServerPeer] ServerPeer [server.0] removing consumer -2147483644 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3993898#... 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