[jboss-user] [JBoss jBPM] - Exception instancing process

[cocampo]

Hello:

Tom, Roland, Koen, I hope you jBPM guys can help me (anybody else's help is apreciated too, but as this seems to be a jBPM API problem...)

Tools:

JBoss 4.0.4GA, jBPM 3.1.2, jBPM DB is running on MySQL 5.0, JDK 1.5.08.


I'm having an exception while instancing a process.

Here is the error:


  | 15:01:42,171 ERROR [STDERR] java.lang.ClassCastException: org.jbpm.graph.def.ProcessDefinition
  | 15:01:42,171 ERROR [STDERR] 	at org.jbpm.db.GraphSession.findLatestProcessDefinition(GraphSession.java:138)
  | 15:01:42,171 ERROR [STDERR] 	at mx.com.gigante.perfil.servlet.SubmitPdfServletOO.instanciarProceso(SubmitPdfServletOO.java:169)
  | 15:01:42,187 ERROR [STDERR] 	at mx.com.gigante.perfil.servlet.SubmitPdfServletOO.doPost(SubmitPdfServletOO.java:138)
  | 15:01:42,187 ERROR [STDERR] 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  | 15:01:42,187 ERROR [STDERR] 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  | 15:01:42,187 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 15:01:42,187 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 15:01:42,187 ERROR [STDERR] 	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 15:01:42,187 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 15:01:42,203 ERROR [STDERR] 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 15:01:42,203 ERROR [STDERR] 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  | 15:01:42,203 ERROR [STDERR] 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  | 15:01:42,203 ERROR [STDERR] 	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  | 15:01:42,203 ERROR [STDERR] 	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  | 15:01:42,203 ERROR [STDERR] 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  | 15:01:42,203 ERROR [STDERR] 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  | 15:01:42,203 ERROR [STDERR] 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  | 15:01:42,218 ERROR [STDERR] 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  | 15:01:42,218 ERROR [STDERR] 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  | 15:01:42,218 ERROR [STDERR] 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  | 15:01:42,218 ERROR [STDERR] 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  | 15:01:42,218 ERROR [STDERR] 	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  | 15:01:42,234 ERROR [STDERR] 	at java.lang.Thread.run(Thread.java:595)
  | 15:01:42,234 ERROR [GraphSession] java.lang.ClassCastException: org.jbpm.graph.def.ProcessDefinition
  | 

This is my process definition:


  | <?xml version="1.0" encoding="UTF-8"?>
  | 
  | <process-definition xmlns="urn:jbpm.org:jpdl-3.1"
  | 	name="proceso_perfil_proveedor">
  | 	<start-state name="start">
  | 		<transition name="" to="creacion contrato"></transition>
  | 	</start-state>
  | 	<task-node name="creacion contrato">
  | 		<task name="crear_contrato"></task>
  | 		<transition name="" to="1a revision contrato"></transition>
  | 	</task-node>
  | 	<task-node name="1a revision contrato">
  | 		<task name="revision_contrato_1">
  | 			<!-- dejar tiempo suficiente (5 segundos) para que quede almacenado el correo en la variable de tarea -->
  | 			<timer 
  | 				name="envio_correo" 
  | 				duedate="5 seconds"		
  | 				repeat="7 days">
  | 				<action
  | 					class='mx.com.gigante.perfil.timers.GeneradorCorreos' />
  | 			</timer>
  | 		</task>
  | 		<transition name="contrato_revisado"
  | 			to="2a revision contrato">
  | 		</transition>
  | 		<transition name="contrato_cancelado"
  | 			to="cancelacion contrato">
  | 		</transition>
  | 		<transition name="contrato_aprobado" to="impresion contrato"></transition>
  | 		<transition name="contrato_rechazado"
  | 			to="correccion contrato">
  | 		</transition>
  | 	</task-node>
  | 	<task-node name="2a revision contrato">
  | 		<task name="revision_contrato_2" >
  | 		</task>
  | 		<transition name="contrato_cancelado"
  | 			to="cancelacion contrato">
  | 		</transition>
  | 		<transition name="contrato_rechazado"
  | 			to="1a revision contrato">
  | 			<action name="reenviar_contrato"></action>
  | 		</transition>
  | 		<transition name="contrato_aprobado" to="impresion contrato"></transition>
  | 	</task-node>
  | 	<task-node name="correccion contrato">
  | 		<task name="correccion_contrato"></task>
  | 		<transition name="contrato_corregido"
  | 			to="1a revision contrato">
  | 		</transition>
  | 	</task-node>
  | 	<task-node name="cancelacion contrato">
  | 		<task name="cancelar_contrato"></task>
  | 		<transition name="" to="end1"></transition>
  | 	</task-node>
  | 	<task-node name="impresion contrato">
  | 		<task name="imprimir_contrato"></task>
  | 		<transition name="" to="carga documento"></transition>
  | 	</task-node>
  | 	<task-node name="carga documento">
  | 		<task name="cargar_documento"></task>
  | 		<transition name="" to="end1"></transition>
  | 	</task-node>
  | 	<end-state name="end1"></end-state>
  | </process-definition>
  | 

And finally, here is the line where I'm getting the exception...

  |             ProcessInstance processInstance = jbpmContext.newProcessInstance("proceso_perfil_proveedor");
  | 


anonymous wrote : 
  |   
  |     <![CDATA[
  |      select pd
  |      from org.jbpm.graph.def.ProcessDefinition as pd
  |      where pd.name = :name
  |      order by pd.version desc    
  |     ]]>
  |   
  | 
It looks OK to me, but as soon as the values retrieved try to be assigned to a ProcessDefinition-type variable, I got the "ClassCastException".
I've been dealing with this problem for about a week, so any help would be mostly apreciated.

It seems to be an error while executing the next query:


Thanks in advance.



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