Hi, I just installed the latest JBoss messaging 1.2 as a replacement to JBossMQ. In our application, in the processing of an MDB, we are creating a acknowledgement message that we submit on a queue. When the message is created on the queue (through Spring's JMSTemplate), we get this error : 2007-03-02 15:36:46,290 ERROR [org.jboss.jms.client.JBossConnectionFactory] Failed to download and/or install client side AOP stack org.jboss.jms.util.MessagingNetworkFailureException: Failed to connect client at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.createClient(ClientConnectionFactoryDelegate.java:288) at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.org$jboss$jms$client$delegate$ClientConnectionFactoryDelegate$getClientAOPStack$aop(ClientConnectionFactoryDelegate.java:222) at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.getClientAOPStack(ClientConnectionFactoryDelegate.java) at org.jboss.jms.client.ClientAOPStackLoader.load(ClientAOPStackLoader.java:67) at org.jboss.jms.client.JBossConnectionFactory.createConnectionInternal(JBossConnectionFactory.java:199) at org.jboss.jms.client.JBossConnectionFactory.createConnection(JBossConnectionFactory.java:88) at org.jboss.jms.client.JBossConnectionFactory.createConnection(JBossConnectionFactory.java:83) at org.springframework.jms.core.JmsTemplate.createConnection(JmsTemplate.java:760) at org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:420) at org.springframework.jms.core.JmsTemplate.send(JmsTemplate.java:477) at com.notary.app.taxsocnot.notice.jms.XmlSenderImpl.send(XmlSenderImpl.java:42) at com.notary.app.taxsocnot.notice.jms.XmlSenderImpl.send(XmlSenderImpl.java:37) at com.notary.app.taxsocnot.notice.service.NoticeManagerImpl.sendNotificationAck(NoticeManagerImpl.java:608) at com.notary.app.taxsocnot.notice.service.NoticeManagerImpl.receiveNotification(NoticeManagerImpl.java:544) at com.notary.app.taxsocnot.notice.service.NoticeManagerImpl$$FastClassByCGLIB$$7e317016.invoke() at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149) at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:685) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170) at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:623) at com.notary.app.taxsocnot.notice.service.NoticeManagerImpl$$EnhancerByCGLIB$$d5118cf3.receiveNotification() at com.notary.app.taxsocnot.notice.service.impl.NoticeFacadeImpl.processNotification(NoticeFacadeImpl.java:95) at sun.reflect.GeneratedMethodAccessor289.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:287) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:181) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176) at $Proxy65.processNotification(Unknown Source) at com.notary.app.taxsocnot.notice.service.ejb.ReceivePRNOTIFBean.onMessage(ReceivePRNOTIFBean.java:72) at sun.reflect.GeneratedMethodAccessor286.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.invocation.Invocation.performCall(Invocation.java:359) at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:495) at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:158) at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:116) at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63) at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121) at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350) at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181) at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:109) at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205) at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:136) at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:402) at org.jboss.ejb.Container.invoke(Container.java:954) at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:987) at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1287) at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:266) at org.jboss.jms.client.remoting.MessageCallbackHandler.callOnMessage(MessageCallbackHandler.java:153) at org.jboss.jms.client.container.SessionAspect.handleRun(SessionAspect.java:791) at org.jboss.aop.advice.org.jboss.jms.client.container.SessionAspect14.invoke(SessionAspect14.java) at org.jboss.jms.client.delegate.ClientSessionDelegate$run_N8003352271541955702.invokeNext(ClientSessionDelegate$run_N8003352271541955702.java) at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:171) at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:105) at org.jboss.jms.client.delegate.ClientSessionDelegate$run_N8003352271541955702.invokeNext(ClientSessionDelegate$run_N8003352271541955702.java) at org.jboss.jms.client.container.ExceptionInterceptor.invoke(ExceptionInterceptor.java:71) at org.jboss.jms.client.delegate.ClientSessionDelegate$run_N8003352271541955702.invokeNext(ClientSessionDelegate$run_N8003352271541955702.java) at org.jboss.jms.client.container.ClientLogInterceptor.invoke(ClientLogInterceptor.java:107) at org.jboss.jms.client.delegate.ClientSessionDelegate$run_N8003352271541955702.invokeNext(ClientSessionDelegate$run_N8003352271541955702.java) at org.jboss.jms.client.delegate.ClientSessionDelegate.run(ClientSessionDelegate.java) at org.jboss.jms.client.JBossSession.run(JBossSession.java:211) at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:194) at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.RuntimeException: Couldn't find valid client invoker class for transport 'bisocket' at org.jboss.remoting.InvokerRegistry.createClientInvoker(InvokerRegistry.java:333) at org.jboss.remoting.Client.(Client.java:178) at org.jboss.remoting.Client.(Client.java:157) at org.jboss.remoting.Client.(Client.java:126) at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.createClient(ClientConnectionFactoryDelegate.java:282) ... 68 more Being new to Jboss messaging, I'm wondering if this could be a configuration problem (and if yes, what it could be) or if this is an issue. Thanks for your help. Philippe View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4024660#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...