[jboss-user] [EJB 3.0] - Unable to deploy simple MDB

fmarchioni do-not-reply at jboss.com
Wed Sep 10 09:06:11 EDT 2008


Dear all,
I'm trying to deploy a simple MDB on JBoss 4.2.0 GA. However once I package the mdb in a jar file and deploy it I get this error:

14:44:33,828 WARN  [ServiceController] Problem creating service jboss.j2ee:service=EJB3,module=DummyMDBean.jar
  | java.lang.ClassNotFoundException: No ClassLoaders found for: com.sample.DummyMDBean
  |         at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:212)
  |         at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:514)
  |         at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:408)
  |         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
  |         at org.jboss.ejb3.Ejb3AnnotationHandler.populateBaseInfo(Ejb3AnnotationHandler.java:293)
  |         at org.jboss.ejb3.Ejb3AnnotationHandler.getContainers(Ejb3AnnotationHandler.java:138)
  |         at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:468)
  |         at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:424)
  |         at org.jboss.ejb3.Ejb3Deployment.deployUrl(Ejb3Deployment.java:405)
  |         at org.jboss.ejb3.Ejb3Deployment.deploy(Ejb3Deployment.java:366)
  |         at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:321)
  |         at org.jboss.ejb3.Ejb3Module.createService(Ejb3Module.java:77)
  |         at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:260)
  |         at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:243)
  |         at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceControl
  | ler.java:978)
  |         at $Proxy0.create(Unknown Source)

This is the source code:


  | package com.sample;
  | 
  | import javax.ejb.ActivationConfigProperty;
  | import javax.ejb.MessageDriven;
  | import javax.jms.Message;
  | import javax.jms.MessageListener;
  | 
  |    @MessageDriven(
  |    name="MessageMDBSample",
  |    activationConfig = {
  |    @ActivationConfigProperty(
  |    propertyName = "destinationType",
  |    propertyValue = "javax.jms.Queue"),
  |    @ActivationConfigProperty(propertyName = "destination",
  |    propertyValue = "testQueue"),
  |    @ActivationConfigProperty(
  |    propertyName = "acknowledgeMode",
  |    propertyValue = "Auto-acknowledge")})
  | 
  |    public class DummyMDBean implements MessageListener {
  | 
  |    public void onMessage(Message message) {
  | 
  |       System.out.println("Message received "+message.toString());
  | 
  |    }
  | 
  |     
  | 
  |   }

The queue was deployed separately under the "deploy" directory

 <server>
  |   <mbean code="org.jboss.mq.server.jmx.Queue"
  | 	 name="jboss.mq.destination:service=Queue,name=testQueue">
  |     <depends optional-attribute-name="DestinationManager">jboss.mq:service=DestinationManager</depends>
  |   </mbean>
  | </server>

Any help ?
thanks a lot
frank

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