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:

anonymous wrote : 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:
anonymous wrote : <?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>
  |       <ejb-ref>
  |         <ejb-ref-name>ejb/WorkflowEngine</ejb-ref-name>
  |         <ejb-ref-type>Session</ejb-ref-type>
  |         de.danet.an.workflow.ejbs.WorkflowEngineHome
  |         de.danet.an.workflow.ejbs.WorkflowEngine        
  |       </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>
  |          <![CDATA[description not supported yet by ejbdoclet]]>
  |          <role-name>StaffManagementRole_0</role-name>
  |       </security-role>
  | 
  |       <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>
  |    <!-- finder permissions -->
  | 
  |    <!-- transactions -->
  |    <container-transaction >
  |       
  |          <ejb-name>BbkCmdRcvBean</ejb-name>
  |           <method-name>*</method-name>
  |        
  |        <trans-attribute>Required</trans-attribute>
  |     </container-transaction>
  |    <!-- finder transactions -->
  |    </assembly-descriptor>
  | </ejb-jar>
This is my jboss.xml:
anonymous wrote : <?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";>
  | 
  | 
  | 
  |    <!--<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 ,  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>
  | 
  | 

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

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http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3849723#3849723

Reply to the post : 
http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3849723


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