2 Replies Latest reply on Sep 29, 2004 8:58 AM by Angelo Immediata

    Message Driven Bean Error... i don't understand it. Help me

    Angelo Immediata Newbie

      Hi all! I'm newbie in JBoss...
      I have read the JAAS howto tutorial but i have some problems... I have an EJB (WorkflowEngine WE) that is in a secure-domain called danetworkflow; i have created a new EJB (Message Driven Bean MDB) that is tring to call WE.. since they weren't in the same security-domain i had an exception (Principal=null); now when i try to call WE from my MDB i have an exception even if i have modified my ejb-jar.xml file and my jboss.xml, i post them:

      JBoss.xml:

      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_3_0.dtd">



      <security-domain>java:/jaas/danetworkflow</security-domain>
      <enterprise-beans>

      <!--
      To add beans that you have deployment descriptor info for, add
      a file to your XDoclet merge directory called jboss-beans.xml that contains
      the , and <message-driven></message-driven>
      markup for those beans.
      -->

      <message-driven>
      <ejb-name>BbkCmdRcvBean</ejb-name>
      <destination-jndi-name>queue/BBkEvtMgrQueue</destination-jndi-name>
      </message-driven>

      </enterprise-beans>

      <resource-managers>
      </resource-managers>






      ejb-jar.xml:
      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">

      <ejb-jar >

      <![CDATA[No Description.]]>
      <display-name>Generated by XDoclet</display-name>

      <enterprise-beans>

      <!-- Session Beans -->
      <!--
      To add session beans that you have deployment descriptor info for, add
      a file to your XDoclet merge directory called session-beans.xml that contains
      the markup for those beans.
      -->

      <!-- Entity Beans -->
      <!--
      To add entity beans that you have deployment descriptor info for, add
      a file to your XDoclet merge directory called entity-beans.xml that contains
      the markup for those beans.
      -->

      <!-- Message Driven Beans -->
      <message-driven >
      <![CDATA[<!-- begin-user-doc --> You can insert your documentation for 'BbkCmdRcvBean'.]]>

      <ejb-name>BbkCmdRcvBean</ejb-name>

      <ejb-class>com.bbk.evtmgr.ejbs.BbkCmdRcvBean</ejb-class>

      <transaction-type>Container</transaction-type>
      <acknowledge-mode>Auto-acknowledge</acknowledge-mode>
      <message-driven-destination>
      <destination-type>javax.jms.Queue</destination-type>
      </message-driven-destination>
      <security-identity>
      <run-as>
      <role-name>StaffManagementRole_0</role-name>
      </run-as>
      </security-identity>

      </message-driven>

      <!--
      To add message driven beans that you have deployment descriptor info for, add
      a file to your XDoclet merge directory called message-driven-beans.xml that contains
      the <message-driven></message-driven> markup for those beans.
      -->

      </enterprise-beans>

      <!-- Relationships -->

      <!-- Assembly Descriptor -->
      <assembly-descriptor >
      <!--
      To add additional assembly descriptor info here, add a file to your
      XDoclet merge directory called assembly-descriptor.xml that contains
      the <assembly-descriptor></assembly-descriptor> markup.
      -->

      <!-- finder permissions -->
      <method-permission >
      <![CDATA[description not supported yet by ejbdoclet]]>
      <role-name>StaffManagementRole_0</role-name>

      <![CDATA[description not supported yet by ejbdoclet]]>
      <ejb-name>BbkCmdRcvBean</ejb-name>
      <method-name>*</method-name>

      </method-permission>
      <!-- transactions -->

      <!-- finder transactions -->
      <container-transaction >

      <ejb-name>BbkCmdRcvBean</ejb-name>
      <method-name>*</method-name>

      <trans-attribute>Required</trans-attribute>
      </container-transaction>
      </assembly-descriptor>

      </ejb-jar>



      Even if i have done this i have this exception:

      12:39:31,187 INFO [STDOUT] Message Driven Bean got message org.jboss.mq.SpyObjectMessage {
      Header {
      jmsDestination : QUEUE.BBkEvtMgrQueue
      jmsDeliveryMode : 2
      jmsExpiration : 0
      jmsPriority : 4
      jmsMessageID : ID:13-10960223709261
      jmsTimeStamp : 1096022370926
      jmsCorrelationID: null
      jmsReplyTo : null
      jmsType : null
      jmsRedelivered : true
      jmsProperties : {JMS_JBOSS_REDELIVERY_COUNT=5}
      jmsPropReadWrite: false
      msgReadOnly : true
      producerClientId: ID:13
      }
      }
      12:39:31,187 ERROR [LogInterceptor] TransactionRolledbackException in method: public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException, causedBy:
      javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
      at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invokeHome(StatelessSessionContainer.java:632)
      at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:205)
      at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invokeHome(StatelessSessionInstanceInterceptor.java:51)
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:88)
      at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
      at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:128)
      at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:94)
      at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
      at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
      at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
      at org.jboss.ejb.Container.invoke(Container.java:743)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:324)
      at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
      at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
      at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
      at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
      at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
      at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
      at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:97)
      at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90)
      at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
      at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
      at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
      at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
      at $Proxy161.create(Unknown Source)
      at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:206)
      at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:324)
      at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
      at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
      at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
      at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
      at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
      at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
      at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
      at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
      at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
      at org.jboss.ejb.Container.invoke(Container.java:723)
      at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
      at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
      at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
      at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
      at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
      at org.jboss.mq.SpySession.run(SpySession.java:347)
      at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
      at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
      at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
      at java.lang.Thread.run(Thread.java:534)
      12:39:31,197 INFO [STDOUT] [StandardWorkflowServiceFactory,ERROR] Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
      javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
      javax.transaction.TransactionRolledbackException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
      javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:214)
      at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
      at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:128)
      at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:94)
      at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
      at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
      at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
      at org.jboss.ejb.Container.invoke(Container.java:743)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:324)
      at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
      at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
      at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
      at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
      at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
      at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
      at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:97)
      at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90)
      at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
      at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
      at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
      at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
      at $Proxy161.create(Unknown Source)
      at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:206)
      at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:324)
      at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
      at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
      at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
      at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
      at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
      at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
      at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
      at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
      at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
      at org.jboss.ejb.Container.invoke(Container.java:723)
      at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
      at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
      at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
      at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
      at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
      at org.jboss.mq.SpySession.run(SpySession.java:347)
      at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
      at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
      at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
      at java.lang.Thread.run(Thread.java:534)
      Caused by: javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
      at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invokeHome(StatelessSessionContainer.java:632)
      at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:205)
      at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invokeHome(StatelessSessionInstanceInterceptor.java:51)
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:88)
      ... 51 more
      12:39:31,197 ERROR [BbkCmdRcvBean] com.bbk.evtmgr.ejbs.BbkCmdRcvBean
      de.danet.an.workflow.api.FactoryConfigurationError: Cannot create WorkflowEngineEJB: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
      javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
      at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:220)
      at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:324)
      at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
      at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
      at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
      at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
      at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
      at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
      at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
      at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
      at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
      at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
      at org.jboss.ejb.Container.invoke(Container.java:723)
      at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
      at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
      at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
      at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
      at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
      at org.jboss.mq.SpySession.run(SpySession.java:347)
      at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
      at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
      at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
      at java.lang.Thread.run(Thread.java:534)
      12:39:31,197 INFO [STDOUT] Finishing onMessage


      I have my MDB in a .jar file and the other ejb in another .jar file that is in a .WAR archive... i'm wrong something but i don't know what...

      I'm using JBoss 3.2.5, JDK 1.4.2_05, WindowsXP Home Edition
      Can anybodu help me, also showiung a little sample? Thanks

        • 1. Re: Message Driven Bean Error... i don't understand it. Help
          Angelo Immediata Newbie

          Hi all; i have a MDB that is tring to communicate with WfmOpen; i have solved the problem "pricipal=null" by adding the security-domain to this MDB; now, when i try to call the workflow engine i have this exception:

          13:35:58,150 INFO [STDOUT] Message Driven Bean got message org.jboss.mq.SpyObjectMessage {
          Header {
          jmsDestination : QUEUE.BBkEvtMgrQueue
          jmsDeliveryMode : 2
          jmsExpiration : 0
          jmsPriority : 4
          jmsMessageID : ID:8-10963713577991
          jmsTimeStamp : 1096371357799
          jmsCorrelationID: null
          jmsReplyTo : null
          jmsType : null
          jmsRedelivered : true
          jmsProperties : {JMS_JBOSS_REDELIVERY_COUNT=6}
          jmsPropReadWrite: false
          msgReadOnly : true
          producerClientId: ID:8
          }
          }
          13:35:58,160 ERROR [LogInterceptor] TransactionRolledbackException in method: public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException, causedBy:
          javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
          at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invokeHome(StatelessSessionContainer.java:632)
          at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:205)
          at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invokeHome(StatelessSessionInstanceInterceptor.java:51)
          at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:88)
          at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
          at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:128)
          at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:94)
          at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
          at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
          at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
          at org.jboss.ejb.Container.invoke(Container.java:743)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:324)
          at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
          at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
          at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
          at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
          at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
          at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
          at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:97)
          at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90)
          at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
          at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
          at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
          at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
          at $Proxy150.create(Unknown Source)
          at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:206)
          at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:324)
          at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
          at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
          at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
          at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
          at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
          at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
          at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
          at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
          at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
          at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
          at org.jboss.ejb.Container.invoke(Container.java:723)
          at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
          at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
          at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
          at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
          at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
          at org.jboss.mq.SpySession.run(SpySession.java:347)
          at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
          at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
          at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
          at java.lang.Thread.run(Thread.java:534)
          13:35:58,160 INFO [STDOUT] [StandardWorkflowServiceFactory,ERROR] Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
          javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
          javax.transaction.TransactionRolledbackException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
          javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
          at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:214)
          at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
          at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:128)
          at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:94)
          at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
          at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
          at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
          at org.jboss.ejb.Container.invoke(Container.java:743)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:324)
          at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
          at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
          at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
          at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
          at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
          at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
          at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:97)
          at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90)
          at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
          at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
          at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
          at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
          at $Proxy150.create(Unknown Source)
          at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:206)
          at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:324)
          at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
          at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
          at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
          at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
          at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
          at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
          at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
          at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
          at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
          at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
          at org.jboss.ejb.Container.invoke(Container.java:723)
          at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
          at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
          at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
          at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
          at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
          at org.jboss.mq.SpySession.run(SpySession.java:347)
          at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
          at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
          at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
          at java.lang.Thread.run(Thread.java:534)
          Caused by: javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
          at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invokeHome(StatelessSessionContainer.java:632)
          at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:205)
          at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invokeHome(StatelessSessionInstanceInterceptor.java:51)
          at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:88)
          ... 51 more
          13:35:58,160 ERROR [BbkCmdRcvBean] com.bbk.evtmgr.ejbs.BbkCmdRcvBean
          de.danet.an.workflow.api.FactoryConfigurationError: Cannot create WorkflowEngineEJB: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
          javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
          at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:220)
          at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:324)
          at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
          at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
          at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
          at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
          at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
          at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
          at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
          at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
          at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
          at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
          at org.jboss.ejb.Container.invoke(Container.java:723)
          at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
          at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
          at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
          at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
          at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
          at org.jboss.mq.SpySession.run(SpySession.java:347)
          at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
          at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
          at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
          at java.lang.Thread.run(Thread.java:534)
          13:35:58,170 INFO [STDOUT] Finishing onMessage


          This is my ejb-jar.xml:
          <?xml version="1.0" encoding="UTF-8"?>
          <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">

          <ejb-jar >

          <description><![CDATA[No Description.]]></description>
          <display-name>Generated by XDoclet</display-name>

          <enterprise-beans>

          <!-- Session Beans -->

          <!--
          To add session beans that you have deployment descriptor info for, add
          a file to your XDoclet merge directory called session-beans.xml that contains
          the <session></session> markup for those beans.
          -->
          <!-- Entity Beans -->
          <!--
          To add entity beans that you have deployment descriptor info for, add
          a file to your XDoclet merge directory called entity-beans.xml that contains
          the <entity></entity> markup for those beans.
          -->

          <!-- Message Driven Beans -->
          <message-driven >
          <description><![CDATA[<!-- begin-user-doc --> You can insert your documentation for '<em><b>BbkCmdRcvBean</b></em>'.]]></description>

          <ejb-name>BbkCmdRcvBean</ejb-name>
          <ejb-class>com.bbk.evtmgr.ejbs.BbkCmdRcvBean</ejb-class>
          <transaction-type>Container</transaction-type>
          <acknowledge-mode>Auto-acknowledge</acknowledge-mode>
          <message-driven-destination>
          <destination-type>javax.jms.Queue</destination-type>
          </message-driven-destination>
          <ejb-ref>
          <ejb-ref-name>ejb/WorkflowEngine</ejb-ref-name>
          <ejb-ref-type>Session</ejb-ref-type>
          <home>de.danet.an.workflow.ejbs.WorkflowEngineHome</home>
          <remote>de.danet.an.workflow.ejbs.WorkflowEngine</remote>
          </ejb-ref>
          <security-identity>
          <run-as>
          <role-name>StaffManagementRole_0</role-name>
          </run-as>
          </security-identity>
          </message-driven>

          <!--
          To add message driven beans that you have deployment descriptor info for, add
          a file to your XDoclet merge directory called message-driven-beans.xml that contains
          the <message-driven></message-driven> markup for those beans.
          -->

          </enterprise-beans>

          <!-- Relationships -->

          <!-- Assembly Descriptor -->
          <assembly-descriptor >
          <!--
          To add additional assembly descriptor info here, add a file to your
          XDoclet merge directory called assembly-descriptor.xml that contains
          the <assembly-descriptor></assembly-descriptor> markup.
          -->
          <security-role>
          <description><![CDATA[description not supported yet by ejbdoclet]]></description>
          <role-name>StaffManagementRole_0</role-name>
          </security-role>

          <method-permission >
          <description><![CDATA[description not supported yet by ejbdoclet]]></description>
          <role-name>StaffManagementRole_0</role-name>
          <method >
          <description><![CDATA[description not supported yet by ejbdoclet]]></description>
          <ejb-name>BbkCmdRcvBean</ejb-name>
          <method-name>*</method-name>
          </method>
          </method-permission>
          <!-- finder permissions -->

          <!-- transactions -->
          <container-transaction >
          <method >
          <ejb-name>BbkCmdRcvBean</ejb-name>
          <method-name>*</method-name>
          </method>
          <trans-attribute>Required</trans-attribute>
          </container-transaction>
          <!-- finder transactions -->
          </assembly-descriptor>
          </ejb-jar>

          This is my jboss.xml:
          <?xml version="1.0" encoding="UTF-8"?>
          <!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_3_0.dtd">

          <jboss>

          <!--<unauthenticated-principal>nobody</unauthenticated-principal>-->
          <security-domain>java:/jaas/danetworkflow-ia</security-domain>
          <enterprise-beans>

          <!--
          To add beans that you have deployment descriptor info for, add
          a file to your XDoclet merge directory called jboss-beans.xml that contains
          the <session></session>, <entity></entity> and <message-driven></message-driven>
          markup for those beans.
          -->

          <message-driven>
          <ejb-name>BbkCmdRcvBean</ejb-name>
          <destination-jndi-name>queue/BBkEvtMgrQueue</destination-jndi-name>
          <ejb-ref>
          <ejb-ref-name>ejb/WorkflowEngine</ejb-ref-name>
          <jndi-name>jnp://127.0.0.1:1099/WfMCore/de.danet.an.workflow.Engine</jndi-name>
          </ejb-ref>
          </message-driven>


          </enterprise-beans>

          <resource-managers>
          <resource-manager res-class="org.jboss.ejb.deployment.JDBCResource">
          <res-name>jdbc/WfEngine</res-name>
          <res-jndi-name>java:/DefaultDS</res-jndi-name>
          </resource-manager>
          <resource-manager>
          <res-name>mail/WfEngine</res-name>
          <res-jndi-name>java:/DefaultMail</res-jndi-name>
          </resource-manager>
          </resource-managers>

          </jboss>


          As you can see i have modified these files for using external reference of WE, but i have always that excepetion you have seen.
          I think it's something that i'm wrong... but really i don't know. Any ideas?
          Thanks

          • 2. Re: Message Driven Bean Error... i don't understand it. Help
            Angelo Immediata Newbie

            Hi; i had the exception:

            12:39:31,187 INFO [STDOUT] Message Driven Bean got message org.jboss.mq.SpyObjectMessage {
            Header {
            jmsDestination : QUEUE.BBkEvtMgrQueue
            jmsDeliveryMode : 2
            jmsExpiration : 0
            jmsPriority : 4
            jmsMessageID : ID:13-10960223709261
            jmsTimeStamp : 1096022370926
            jmsCorrelationID: null
            jmsReplyTo : null
            jmsType : null
            jmsRedelivered : true
            jmsProperties : {JMS_JBOSS_REDELIVERY_COUNT=5}
            jmsPropReadWrite: false
            msgReadOnly : true
            producerClientId: ID:13
            }
            }
            12:39:31,187 ERROR [LogInterceptor] TransactionRolledbackException in method: public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException, causedBy:
            javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
            at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invokeHome(StatelessSessionContainer.java:632)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:205)
            at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invokeHome(StatelessSessionInstanceInterceptor.java:51)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:88)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:128)
            at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:94)
            at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
            at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
            at org.jboss.ejb.Container.invoke(Container.java:743)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
            at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
            at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
            at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
            at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:97)
            at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90)
            at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
            at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
            at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
            at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
            at $Proxy161.create(Unknown Source)
            at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:206)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
            at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
            at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
            at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
            at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
            at org.jboss.ejb.Container.invoke(Container.java:723)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
            at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
            at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
            at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
            at org.jboss.mq.SpySession.run(SpySession.java:347)
            at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
            at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
            at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
            at java.lang.Thread.run(Thread.java:534)
            12:39:31,197 INFO [STDOUT] [StandardWorkflowServiceFactory,ERROR] Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
            javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
            javax.transaction.TransactionRolledbackException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
            javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:214)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:128)
            at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:94)
            at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
            at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
            at org.jboss.ejb.Container.invoke(Container.java:743)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
            at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
            at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
            at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
            at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:97)
            at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90)
            at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
            at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
            at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
            at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
            at $Proxy161.create(Unknown Source)
            at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:206)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
            at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
            at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
            at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
            at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
            at org.jboss.ejb.Container.invoke(Container.java:723)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
            at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
            at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
            at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
            at org.jboss.mq.SpySession.run(SpySession.java:347)
            at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
            at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
            at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
            at java.lang.Thread.run(Thread.java:534)
            Caused by: javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
            at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invokeHome(StatelessSessionContainer.java:632)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:205)
            at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invokeHome(StatelessSessionInstanceInterceptor.java:51)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:88)
            ... 51 more
            12:39:31,197 ERROR [BbkCmdRcvBean] com.bbk.evtmgr.ejbs.BbkCmdRcvBean
            de.danet.an.workflow.api.FactoryConfigurationError: Cannot create WorkflowEngineEJB: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException; nested exception is:
            javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract de.danet.an.workflow.ejbs.WorkflowEngine de.danet.an.workflow.ejbs.WorkflowEngineHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException
            at de.danet.an.workflow.ejbs.client.StandardWorkflowServiceFactory.newWorkflowService(StandardWorkflowServiceFactory.java:220)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:156)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
            at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
            at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
            at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
            at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
            at org.jboss.ejb.Container.invoke(Container.java:723)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
            at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
            at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
            at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
            at org.jboss.mq.SpySession.run(SpySession.java:347)
            at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
            at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
            at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
            at java.lang.Thread.run(Thread.java:534)
            12:39:31,197 INFO [STDOUT] Finishing onMessage



            Now it seems to me that i solved it by inserting in the file standardjboss.xml this string:

            <!--<interceptor call-by-value="false">org.jboss.invocation.InvokerInterceptor</interceptor>-->
            <interceptor call-by-value="false">org.jboss.invocation.ByValueInvokerInterceptor</interceptor>


            But by doing so i have the classic exception principal=null; i post here this exception:

            13:57:57,574 INFO [STDOUT] Message Driven Bean got message org.jboss.mq.SpyObjectMessage {
            Header {
            jmsDestination : QUEUE.BBkEvtMgrQueue
            jmsDeliveryMode : 2
            jmsExpiration : 0
            jmsPriority : 4
            jmsMessageID : ID:7-10964590775341
            jmsTimeStamp : 1096459077534
            jmsCorrelationID: null
            jmsReplyTo : null
            jmsType : null
            jmsRedelivered : false
            jmsProperties : {}
            jmsPropReadWrite: false
            msgReadOnly : true
            producerClientId: ID:7
            }
            }
            13:57:57,874 ERROR [SecurityInterceptor] Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            13:57:57,914 ERROR [LogInterceptor] EJBException, causedBy:
            java.lang.SecurityException: Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at org.jboss.ejb.plugins.SecurityInterceptor.checkSecurityAssociation(SecurityInterceptor.java:229)
            at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:83)
            at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
            at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
            at org.jboss.ejb.Container.invoke(Container.java:743)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
            at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
            at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
            at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
            at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:360)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
            at sun.rmi.transport.Transport$1.run(Transport.java:148)
            at java.security.AccessController.doPrivileged(Native Method)
            at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
            at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
            at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
            at java.lang.Thread.run(Thread.java:534)
            13:57:57,954 INFO [STDOUT] [EJBUtil,WARN] Exception in $Proxy146.create():
            java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
            java.rmi.ServerException: EJBException:; nested exception is:
            javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
            Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:292)
            at sun.rmi.transport.Transport$1.run(Transport.java:148)
            at java.security.AccessController.doPrivileged(Native Method)
            at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
            at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
            at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
            at java.lang.Thread.run(Thread.java:534)
            at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
            at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
            at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
            at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
            at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:135)
            at org.jboss.invocation.ByValueInvokerInterceptor.invoke(ByValueInvokerInterceptor.java:62)
            at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
            at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
            at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
            at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
            at $Proxy146.create(Unknown Source)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at de.danet.an.util.EJBUtil.createSession(EJBUtil.java:371)
            at de.danet.an.util.EJBUtil.createSession(EJBUtil.java:345)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.createNewWfService(BbkCmdRcvBean.java:205)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:167)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
            at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
            at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
            at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
            at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
            at org.jboss.ejb.Container.invoke(Container.java:723)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
            at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
            at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
            at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
            at org.jboss.mq.SpySession.run(SpySession.java:347)
            at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
            at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
            at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
            at java.lang.Thread.run(Thread.java:534)
            Caused by: java.rmi.ServerException: EJBException:; nested exception is:
            javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
            Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:347)
            at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:124)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
            at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
            at org.jboss.ejb.Container.invoke(Container.java:743)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
            at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
            at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
            at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
            at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:360)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
            at sun.rmi.transport.Transport$1.run(Transport.java:148)
            at java.security.AccessController.doPrivileged(Native Method)
            at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
            at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
            at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
            ... 1 more
            Caused by: javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
            Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at org.jboss.ejb.plugins.SecurityInterceptor.checkSecurityAssociation(SecurityInterceptor.java:230)
            at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:83)
            at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
            ... 25 more
            13:57:57,954 INFO [STDOUT] [EJBUtil,WARN] Unwrapped exception is:
            java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
            java.rmi.ServerException: EJBException:; nested exception is:
            javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
            Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:292)
            at sun.rmi.transport.Transport$1.run(Transport.java:148)
            at java.security.AccessController.doPrivileged(Native Method)
            at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
            at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
            at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
            at java.lang.Thread.run(Thread.java:534)
            at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
            at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
            at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
            at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
            at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:135)
            at org.jboss.invocation.ByValueInvokerInterceptor.invoke(ByValueInvokerInterceptor.java:62)
            at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
            at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
            at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
            at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
            at $Proxy146.create(Unknown Source)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at de.danet.an.util.EJBUtil.createSession(EJBUtil.java:371)
            at de.danet.an.util.EJBUtil.createSession(EJBUtil.java:345)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.createNewWfService(BbkCmdRcvBean.java:205)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:167)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
            at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
            at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
            at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
            at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
            at org.jboss.ejb.Container.invoke(Container.java:723)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
            at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
            at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
            at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
            at org.jboss.mq.SpySession.run(SpySession.java:347)
            at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
            at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
            at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
            at java.lang.Thread.run(Thread.java:534)
            Caused by: java.rmi.ServerException: EJBException:; nested exception is:
            javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
            Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:347)
            at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:124)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:93)
            at org.jboss.ejb.StatelessSessionContainer.internalInvokeHome(StatelessSessionContainer.java:319)
            at org.jboss.ejb.Container.invoke(Container.java:743)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:61)
            at org.jboss.mx.server.Invocation.dispatch(Invocation.java:53)
            at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
            at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:185)
            at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
            at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:360)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
            at sun.rmi.transport.Transport$1.run(Transport.java:148)
            at java.security.AccessController.doPrivileged(Native Method)
            at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
            at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
            at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
            ... 1 more
            Caused by: javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
            Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at org.jboss.ejb.plugins.SecurityInterceptor.checkSecurityAssociation(SecurityInterceptor.java:230)
            at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:83)
            at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:120)
            ... 25 more
            13:57:57,954 ERROR [BbkCmdRcvBean] com.bbk.evtmgr.ejbs.BbkCmdRcvBean
            de.danet.an.util.ResourceNotAvailableException: RemoteException occurred in server thread; nested exception is:
            java.rmi.ServerException: EJBException:; nested exception is:
            javax.ejb.EJBException: checkSecurityAssociation; CausedByException is:
            Insufficient method permissions, principal=null, method=create, interface=HOME, requiredRoles=[StaffManagementRole_0], principalRoles=null
            at de.danet.an.util.EJBUtil.createSession(EJBUtil.java:388)
            at de.danet.an.util.EJBUtil.createSession(EJBUtil.java:345)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.createNewWfService(BbkCmdRcvBean.java:205)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:167)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
            at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
            at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
            at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
            at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
            at org.jboss.ejb.Container.invoke(Container.java:723)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
            at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
            at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
            at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
            at org.jboss.mq.SpySession.run(SpySession.java:347)
            at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
            at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
            at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
            at java.lang.Thread.run(Thread.java:534)
            13:57:57,954 ERROR [BbkCmdRcvBean] com.bbk.evtmgr.ejbs.BbkCmdRcvBean
            java.lang.IllegalArgumentException: WorkflowService may not be null.
            at com.bbk.platform.wfx.DefaultWfxProxy.<init>(DefaultWfxProxy.java:99)
            at com.bbk.platform.wfx.DefaultWfxProxy.<init>(DefaultWfxProxy.java:69)
            at com.bbk.evtmgr.ejbs.BbkCmdRcvBean.onMessage(BbkCmdRcvBean.java:167)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
            at java.lang.reflect.Method.invoke(Method.java:324)
            at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:458)
            at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
            at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:62)
            at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
            at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
            at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
            at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:90)
            at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
            at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
            at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:372)
            at org.jboss.ejb.Container.invoke(Container.java:723)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:914)
            at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1208)
            at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:276)
            at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:871)
            at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:159)
            at org.jboss.mq.SpySession.run(SpySession.java:347)
            at org.jboss.jms.asf.StdServerSession.run0(StdServerSession.java:200)
            at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
            at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
            at java.lang.Thread.run(Thread.java:534)
            13:57:57,954 INFO [STDOUT] Finishing onMessage


            My MDB code is:

            import java.rmi.RemoteException;
            import java.util.HashMap;
            import java.util.Hashtable;
            import java.util.Map;

            import javax.ejb.MessageDrivenBean;
            import javax.jms.JMSException;
            import javax.jms.MessageListener;
            import javax.jms.ObjectMessage;
            import javax.naming.InitialContext;
            import javax.naming.NamingException;

            import org.apache.log4j.Logger;

            import com.bbk.platform.exception.WfxInvalidCommandException;
            import com.bbk.platform.exception.WfxNotExecutedCommandException;
            import com.bbk.platform.model.WfxCommand;
            import com.bbk.platform.wfx.DefaultWfxProxy;

            import de.danet.an.util.EJBUtil;
            import de.danet.an.util.ResourceNotAvailableException;
            import de.danet.an.workflow.api.FactoryConfigurationError;
            import de.danet.an.workflow.api.WorkflowService;
            //import de.danet.an.workflow.api.WorkflowServiceFactory;
            import de.danet.an.workflow.ejbs.WorkflowEngine;
            import de.danet.an.workflow.ejbs.WorkflowEngineHome;
            import de.danet.an.workflow.ejbs.client.StandardWorkflowService;

            /**
            *
            * <!-- begin-user-doc --> You can insert your documentation for '<em><b>BbkCmdRcvBean</b></em>'. <!-- end-user-doc --> *
            <!-- begin-lomboz-definition -->
            <?xml version="1.0" encoding="UTF-8"?>
            <lomboz:EJB xmlns:j2ee="http://java.sun.com/xml/ns/j2ee" xmlns:lomboz="http://lomboz.objectlearn.com/xml/lomboz">
            <lomboz:message-driven>
            <lomboz:messageDrivenEjb>
            <j2ee:display-name>BbkCmdRcvBean</j2ee:display-name>
            <j2ee:ejb-name>BbkCmdRcv</j2ee:ejb-name>
            <j2ee:ejb-class>com.bbk.evtmgr.ejbs.BbkCmdRcvBean</j2ee:ejb-class>
            <j2ee:transaction-type>Container</j2ee:transaction-type>
            <j2ee:message-destination-type>javax.jms.Queue</j2ee:message-destination-type>
            </lomboz:messageDrivenEjb>
            <lomboz:messageDestination>
            <j2ee:message-destination-name>queue/BBkEvtMgrQueue</j2ee:message-destination-name>
            </lomboz:messageDestination>
            </lomboz:message-driven>
            </lomboz:EJB>
            <!-- end-lomboz-definition -->
            *
            *
            * <!-- begin-xdoclet-definition -->
            * @ejb.bean name="BbkCmdRcvBean"
            * acknowledge-mode="Auto-acknowledge"
            * destination-type="javax.jms.Queue"
            * transaction-type="Container"
            *
            *--
            * This is needed for JOnAS.
            * If you are not using JOnAS you can safely remove the tags below.
            * @jonas.bean ejb-name="BbkCmdRcvBean"
            * jndi-name="BbkCmdRcv"
            * @jonas.message-driven-destination jndi-name="queue/BBkEvtMgrQueue"
            *
            *--
            *
            *--
            * This is needed for JBOSS.
            * If you are not using JBOSS you can safely remove the tags below.
            * @jboss.destination-jndi-name name="queue/BBkEvtMgrQueue"
            *
            *--
            * <!-- end-xdoclet-definition -->
            * @generated
            **/
            public class BbkCmdRcvBean implements MessageDrivenBean, MessageListener {


            private String module = BbkCmdRcvBean.class.getName();

            private Logger log = Logger.getLogger( module );
            /**
            * <!-- begin-user-doc -->
            * <!-- end-user-doc -->
            * The context for the message-driven bean, set by the EJB container.
            * @generated
            */
            private javax.ejb.MessageDrivenContext messageContext = null;

            /**
            * Required method for container to set context.
            * @generated
            */
            public void setMessageDrivenContext(
            javax.ejb.MessageDrivenContext messageContext)
            throws javax.ejb.EJBException {
            this.messageContext = messageContext;
            if( log.isDebugEnabled() ){

            log.debug( "Settato MessageDrivenBeanContext Principal: " );
            }
            }

            /**
            * Required creation method for message-driven beans.
            *
            * <!-- begin-user-doc -->
            * <!-- end-user-doc -->
            *
            * <!-- begin-xdoclet-definition -->
            * @ejb.create-method
            * <!-- end-xdoclet-definition -->
            * @generated
            */
            public void ejbCreate() {
            //no specific action required for message-driven beans
            }

            /**
            * Required removal method for message-driven beans.
            * <!-- begin-user-doc -->
            * <!-- end-user-doc -->
            * @generated
            */
            public void ejbRemove() {
            messageContext = null;
            }

            /**
            * This method implements the business logic for the EJB.
            *
            * <p>Make sure that the business logic accounts for asynchronous message processing.
            * For example, it cannot be assumed that the EJB receives messages in the order they were
            * sent by the client. Instance pooling within the container means that messages are not
            * received or processed in a sequential order, although individual onMessage() calls to
            * a given message-driven bean instance are serialized.
            *
            * <p>The <code>onMessage()</code> method is required, and must take a single parameter
            * of type javax.jms.Message. The throws clause (if used) must not include an application
            * exception. Must not be declared as final or static.
            * <!-- begin-user-doc -->
            * <!-- end-user-doc -->
            * @generated
            */
            public void onMessage(javax.jms.Message message) {

            System.out.println("Message Driven Bean got message " + message);
            if( log.isDebugEnabled() ){

            log.debug( "on Message method in class: "+ module.toUpperCase()+ " Creating workflow engine" );
            }
            try {

            WfxCommand cmd = ( WfxCommand ) ( ( ( ObjectMessage )( message ) ).getObject() );
            if( log.isDebugEnabled() ){

            log.debug( "Received cmd: "+ cmd.toString() );
            }

            DefaultWfxProxy theProxyServer = new DefaultWfxProxy( createNewWfService() );
            theProxyServer.sendCommand( cmd );

            } catch (JMSException e) {

            log.error( module, e );
            } catch (RemoteException e) {

            log.error( module, e );
            } catch (FactoryConfigurationError e) {

            log.error( module, e );
            } catch (WfxInvalidCommandException e) {

            log.error( module, e );
            } catch (WfxNotExecutedCommandException e) {

            log.error( module, e );
            } catch (Exception e) {

            log.error( module, e );
            }
            System.out.println( "Finishing onMessage" );
            }

            private WorkflowService createNewWfService(){

            WorkflowEngine wfE = null;
            Hashtable env = null;
            InitialContext context = null;
            Map recoveryProp = new HashMap();
            WorkflowService wfService = null;
            try {

            if( log.isDebugEnabled() ){

            log.debug( "Creating new Wfe" );
            }
            wfE = ( WorkflowEngine )( EJBUtil.createSession( WorkflowEngineHome.class, "java:comp/env/ejb/WorkflowEngine" ) );
            if( log.isDebugEnabled() ){

            log.debug( "Creating new IntialContext" );
            }
            context = new InitialContext();
            recoveryProp.put( "javax.naming.InitialContext.Environment", context );
            if( log.isDebugEnabled() ){

            log.debug( "Creating new WorkflowService" );
            }
            wfService = new StandardWorkflowService( recoveryProp, context, wfE );
            } catch (ResourceNotAvailableException e1) {
            log.error( module, e1 );
            } catch (IllegalArgumentException e1) {
            log.error( module, e1 );
            }catch (NamingException e) {
            log.error( module, e );
            }
            if( log.isDebugEnabled() ){

            log.debug( "Going out from createNeWfService method" );
            }
            return wfService;
            }
            }


            As you can see it's nothing particular...; my ejb-jar.xml is this one:
            <?xml version="1.0" encoding="UTF-8"?>
            <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">

            <ejb-jar >

            <description><![CDATA[No Description.]]></description>
            <display-name>Generated by XDoclet</display-name>

            <enterprise-beans>

            <!-- Session Beans -->
            <!--
            To add session beans that you have deployment descriptor info for, add
            a file to your XDoclet merge directory called session-beans.xml that contains
            the <session></session> markup for those beans.
            -->

            <!-- Entity Beans -->
            <!--
            To add entity beans that you have deployment descriptor info for, add
            a file to your XDoclet merge directory called entity-beans.xml that contains
            the <entity></entity> markup for those beans.
            -->

            <!-- Message Driven Beans -->
            <message-driven >
            <description><![CDATA[<!-- begin-user-doc --> You can insert your documentation for '<em><b>BbkCmdRcvBean</b></em>'.]]></description>

            <ejb-name>BbkCmdRcvBean</ejb-name>

            <ejb-class>com.bbk.evtmgr.ejbs.BbkCmdRcvBean</ejb-class>

            <transaction-type>Container</transaction-type>
            <acknowledge-mode>Auto-acknowledge</acknowledge-mode>
            <message-driven-destination>
            <destination-type>javax.jms.Queue</destination-type>
            </message-driven-destination>

            <ejb-ref>
            <ejb-ref-name>ejb/WorkflowEngine</ejb-ref-name>
            <ejb-ref-type>Session</ejb-ref-type>
            <home>de.danet.an.workflow.ejbs.WorkflowEngineHome</home>
            <remote>de.danet.an.workflow.ejbs.WorkflowEngine</remote>
            <security-identity>
            <run-as>
            <role-name>StaffManagementRole_0</role-name>
            </run-as>
            </security-identity>
            </ejb-ref>

            <security-identity>
            <run-as>
            <role-name>StaffManagementRole_0</role-name>
            </run-as>
            </security-identity>
            </message-driven>

            <!--
            To add message driven beans that you have deployment descriptor info for, add
            a file to your XDoclet merge directory called message-driven-beans.xml that contains
            the <message-driven></message-driven> markup for those beans.
            -->

            </enterprise-beans>

            <!-- Relationships -->

            <!-- Assembly Descriptor -->
            <assembly-descriptor >
            <!--
            To add additional assembly descriptor info here, add a file to your
            XDoclet merge directory called assembly-descriptor.xml that contains
            the <assembly-descriptor></assembly-descriptor> markup.
            -->
            <security-role>
            <description><![CDATA[description not supported yet by ejbdoclet]]></description>
            <role-name>StaffManagementRole_0</role-name>
            </security-role>

            <method-permission >
            <description><![CDATA[description not supported yet by ejbdoclet]]></description>
            <role-name>StaffManagementRole_0</role-name>
            <method >
            <description><![CDATA[description not supported yet by ejbdoclet]]></description>
            <ejb-name>BbkCmdRcvBean</ejb-name>
            <method-name>*</method-name>
            </method>
            </method-permission>
            <!-- finder permissions -->

            <!-- transactions -->
            <container-transaction >
            <method >
            <ejb-name>BbkCmdRcvBean</ejb-name>
            <method-name>*</method-name>
            </method>
            <trans-attribute>Required</trans-attribute>
            </container-transaction>
            <!-- finder transactions -->
            </assembly-descriptor>
            </ejb-jar>

            while my jboss.xml is:

            <?xml version="1.0" encoding="UTF-8"?>
            <!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_3_0.dtd">

            <jboss>

            <!--<unauthenticated-principal>nobody</unauthenticated-principal>-->
            <security-domain>java:/jaas/danetworkflow-ia</security-domain>

            <enterprise-beans>

            <!--
            To add beans that you have deployment descriptor info for, add
            a file to your XDoclet merge directory called jboss-beans.xml that contains
            the <session></session>, <entity></entity> and <message-driven></message-driven>
            markup for those beans.
            -->

            <message-driven>
            <ejb-name>BbkCmdRcvBean</ejb-name>
            <destination-jndi-name>queue/BBkEvtMgrQueue</destination-jndi-name>
            <ejb-ref>
            <ejb-ref-name>ejb/WorkflowEngine</ejb-ref-name>
            <jndi-name>jnp://127.0.0.1:1099/de.danet.an.workflow.Engine</jndi-name>
            </ejb-ref>
            </message-driven>
            </enterprise-beans>

            <resource-managers>
            </resource-managers>

            </jboss>

            Can anyone tell me why i have this error? I know that MDB have no caller, i think it's this the problem; if so... how can i pass the right role to workflow ejb? Thanks for your help