[jboss-user] [JBoss jBPM] - Re: java activity argument problem

[nuvole]

"nuvole" wrote : Hi, all~!
  | I'm using jbpm4-beta2 version and jpdl java activity.
  | but i don't know how java activity invoke method with Object type argument.
  | 
  | <?xml version="1.0" encoding="UTF-8"?>
  |   | 
  |   | <process name="Java" xmlns="http://jbpm.org/4.0/jpdl">
  |   | 
  |   |   <start g="20,20,48,48">
  |   |     <transition name="" to="invoke java method"/>
  |   |   </start>
  |   | 
  |   |   <java class="com.xener.jbpm.JohnDoe" g="96,16,127,52" method="hello" name="invoke java method" var="answer">
  |   |         
  |   |     <field name="state"><string value="fine"/></field>
  |   | 	<field name="session"><env type="org.hibernate.Session"/></field>
  |   | 
  |   |     <arg>
  |   |     	<object class="com.xener.jbpm.JohnDoeMsg">
  |   |     		<field name="msg"><string value="#{msgObject}"/></field>
  |   |     	</object>
  |   |     </arg>
  |   |     
  |   |     <transition name="" to="wait"/>
  |   |     
  |   |   </java>
  |   |   
  |   |   <state g="255,16,88,52" name="wait"/>
  |   | 
  |   | </process>
  | 
  | but this error occured:
  | 
  |   | 16:38:12,187 ERROR [STDERR] org.hibernate.HibernateException: instance not of expected entity type:
  |   | org.jbpm.pvm.internal.type.variable.UnpersistableVariable is not a: org.jbpm.pvm.internal.type.Vari
  |   | ble
  |   |         at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassEntityPersister(Abstra
  |   | tEntityPersister.java:3663)
  |   |         at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1374)
  |   |         at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:203)
  |   |         at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListen
  |   | r.java:535)
  |   |         at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSave
  |   | rUpdateEventListener.java:103)
  |   |         at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpd
  |   | teEventListener.java:93)
  |   |         at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:534)
  |   |         at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:526)
  |   |         at org.hibernate.engine.CascadingAction$5.cascade(CascadingAction.java:241)
  |   |         at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:291)
  |   |         at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:239)
  |   |         at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:192)
  |   |         at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:319)
  |   |         at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:265)
  |   |         at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:242)
  |   |         at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:192)
  |   |         at org.hibernate.engine.Cascade.cascade(Cascade.java:153)
  |   |         at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEve
  |   | tListener.java:154)
  |   |         at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlush
  |   | ngEventListener.java:145)
  |   |         at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(Abstra
  |   | tFlushingEventListener.java:88)
  |   |         at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java
  |   | 49)
  |   |         at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
  |   |         at org.jbpm.pvm.internal.tx.HibernateSessionResource.prepare(HibernateSessionResource.java:
  |   | 4)
  |   |         at org.jbpm.pvm.internal.tx.StandardTransaction.commit(StandardTransaction.java:106)
  |   |         at org.jbpm.pvm.internal.tx.StandardTransaction.complete(StandardTransaction.java:65)
  |   |         at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInter
  |   | eptor.java:61)
  |   |         at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:54)
  |   |         at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)
  |   |         at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceByKey(ExecutionServic
  |   | Impl.java:72)
  |   |         at com.xener.jbpm.JavaInstantiateTest.testJavaInstantiate(JavaInstantiateTest.java:65)
  |   |         at com.xener.jbpm.web.JBPMServlet.doGet(JBPMServlet.java:23)
  |   |         at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
  |   |         at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  |   |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.
  |   | ava:290)
  |   |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206
  |   | 
  |   |         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |   |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.
  |   | ava:235)
  |   |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206
  |   | 
  |   |         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
  |   |         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
  |   |         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.j
  |   | va:190)
  |   |         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
  |   |         at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextE
  |   | tablishmentValve.java:126)
  |   |         at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEs
  |   | ablishmentValve.java:70)
  |   |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  |   |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
  |   |         at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java
  |   | 158)
  |   |         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  |   |         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
  |   |         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
  |   |         at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.j
  |   | va:601)
  |   |         at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
  |   |         at java.lang.Thread.run(Thread.java:619)
  |   | 
  | 
  | Thanks for any help~!

View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4233811#4233811

Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4233811