ClassCast exception when executing simple process

[sergey.rybets]

Hello.
I have following problem -
23:37:37,248 ERROR [[Test]] Servlet.service() for servlet Test threw exception
java.lang.ClassCastException: org.jbpm.msg.jms.JmsMessageServiceFactoryImpl
at org.jbpm.svc.Services.getServiceFactory(Services.java:122)
at org.jbpm.svc.Services.getService(Services.java:139)
at org.jbpm.svc.Services.getCurrentService(Services.java:88)
at org.jbpm.svc.Services.getCurrentService(Services.java:81)
at org.jbpm.graph.def.Node.enter(Node.java:314)
at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke()
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163)
at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$6bc12d7d.enter()
at org.jbpm.graph.def.Transition.take(Transition.java:151)
at org.jbpm.graph.def.Node.leave(Node.java:393)
at org.jbpm.graph.node.StartState.leave(StartState.java:70)

I've written simple servlet that executes process definition to check if I've done everything ok with configuring JMS.

process definition:

<process-definition xmlns="urn:jbpm.org:jpdl-3.2" name="testasync">
 <start-state name="start">
 <transition name="s" to="s"></transition>
 </start-state>
 <node name="s" async="true">
 <transition name="" to="node1"></transition>
 </node>
 <node name="node1">
 <transition name="" to="end1"></transition>
 </node>
 <end-state name="end1"></end-state>
</process-definition>

configuration of jbpm context:

<jbpm-context>
 <service name="persistence">
 <factory>
 <bean
 class="org.jbpm.persistence.db.DbPersistenceServiceFactory">
 <field name="isCurrentSessionEnabled">
 <false />
 </field>
 <field name="isTransactionEnabled">
 <false />
 </field>
 </bean>
 </factory>
 </service>
 <service name="message">
 <factory>
 <bean
 class="org.jbpm.msg.jms.JmsMessageServiceFactoryImpl">
 <field name="connectionFactoryJndiName">
 <string value="java:/JmsXA" />
 </field>
 <field name="destinationJndiName">
 <string value="queue/JbpmJobQueue" />
 </field>
 </bean>
 </factory>
 </service>

 <service name="scheduler"
 factory="org.jbpm.scheduler.ejbtimer.EjbSchedulerServiceFactory"/>
 <service name="tx" factory="org.jbpm.tx.TxServiceFactory" />
 <service name="logging"
 factory="org.jbpm.logging.db.DbLoggingServiceFactory" />
 <service name="authentication"
 factory="org.jbpm.security.authentication.DefaultAuthenticationServiceFactory" />
 </jbpm-context>

I watched in debug mode all of these services are not null but I can't get what's wrong. Help, it seems that I've don everything like was described in user guide. What can be wrong?
Thank you

P.S. if I remove attribute async from node ClassCastException appears on casting org.jbpm.scheduler.ejbtimer.EjbSchedulerServiceFactory to org.jbpm.svc.ServiceFactory.

[sergey.rybets]

no more the problem, thx

[mailinator]

Hi,
How have you done ?

Regards,

O.M.

[jdbertron]

It sounds like you have a problem with your configuration of the factories.
I have the same situation and I suspect a problem with the declaration of the factories in the jbpm.cfg.xml. Somewhere the JBoss SOA documentation warns not to mix the two styles of factory declarations.

The jBPM apparently had no problem using the JTA Db service, but somewhere along the line, it becomes unable to instantiate the 'other' factories.

[aguizar]

You seem to have figured out the problem, but just for the record, class org.jbpm.persistence.db.DbPersistenceServiceFactory is not in jbpm-jpdl.jar, but in jbpm-enterprise.jar. That is because the JMS message service requires a component that reads the job messages and executes the jobs. Said module is currently provided as a message-driven bean. Non EJB-based job executors could exist, but I don't quite see the point.