[jboss-user] [JBoss jBPM] - JBPM 3.2 - Mailing process - Exception during deployment

[ygiriyap]

Hi All ...

I am trying to send a mail from my work flow.
I am using Eclipse plugin to build and deploy my workflow.

processdefinition.xml file looks like this
  | <?xml version="1.0" encoding="UTF-8"?>
  | 
  | <process-definition
  |   xmlns="urn:jbpm.org:jpdl-3.2"  name="mailing">
  | 
  |    <swimlane name="SL_bert">
  |       <assignment actor-id="bert"></assignment>
  |    </swimlane>
  |    
  |    
  |    <start-state name="SN_Mailing">
  |       <transition name="N_MailAction_SendMail" to="N_MailAction_SendMail"></transition>
  |    </start-state>
  | 
  | 	<node name="N_MailAction_SendMail">
  |       <event type="node-enter">
  |          <mail name="M_MailAction"  to="someid at gmail.com" template="jbpm.mail.templates.xml">
  |          	<subject>Subject: Mail action - mail</subject>
  |          	<text>Text: This mail is of type- mail actions</text>
  |          </mail>   
  |       </event>
  |       <transition name="EN_Mailing" to="EN_Mailing"></transition>
  |    </node>
  |    
  |    <end-state name="EN_Mailing"></end-state>   
  |    
  | </process-definition>
  | 

I am using mail action inside the event to send a mail.
When i try to deploy the process following Exception is thrown.

Caused by: org.hibernate.HibernateException: instance not of expected entity type: org.jbpm.graph.action.MailAction is not a: org.jbpm.graph.def.Action



  | org.jbpm.persistence.JbpmPersistenceException: hibernate commit failed
  |         at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:216)
  |         at org.jbpm.svc.Services.close(Services.java:222)
  |         at org.jbpm.JbpmContext.close(JbpmContext.java:139)
  |         at org.jbpm.webapp.servlet.ProcessUploadServlet.service(ProcessUploadServlet.java:69)
  |         at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  |         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  |         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
  |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  |         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  |         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  |         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
  |         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |         at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
  |         at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
  |         at java.lang.Thread.run(Unknown Source)
  | Caused by: org.hibernate.HibernateException: instance not of expected entity type: org.jbpm.graph.action.MailAction is not a: org.jbpm.graph.def.Action
  |         at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassEntityPersister(AbstractEntityPersister.java:3583)
  |         at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1347)
  |         at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:180)
  |         at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:487)
  |         at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:84)
  |         at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
  |         at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507)
  |         at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
  |         at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:218)
  |         at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
  |         at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
  |         at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
  |         at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
  |         at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
  |         at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
  |         at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
  |         at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
  |         at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:131)
  |         at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:122)
  |         at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65)
  |         at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
  |         at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
  |         at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
  |         at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
  |         at org.jbpm.persistence.db.DbPersistenceService.commit(DbPersistenceService.java:253)
  |         at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:211)
  |         ... 22 more
  | 

Please let me know if I have done anything wrong?
What all configurations are involved in successfully executing a mailing workflow process?

Kindly help.
Thanks in advance.
--Yash

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