[jboss-user] [JBoss jBPM] - when i end the TaskInstance, an LazyInitializationException o

[foolpcman]

first,i want say sorry ,because i'm a Chinese and english isn't well.
i think you can know the folowing language:
when i do this:
RndfReport businessReport = new RndfReport();
  |         businessReport.setExampleName(example_name);
  |         businessReport.setExampleRemark(example_remark);
  |         
  |         JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();
  |         JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
  | 		Session hsession = jbpmContext.getSessionFactory().openSession();
  | 		Transaction transaction = hsession.beginTransaction();
  | 		try {
  |             
  |             hsession.save(businessReport);
  |             transaction.commit();
  |             ProcessDefinition pd = jbpmContext.getGraphSession().findLatestProcessDefinition("RNDFProcess");
  |             ProcessInstance pi = pd.createProcessInstance();
  |             pi.getContextInstance().setVariable("username", from_username);
  |             TaskInstance ti = pi.getTaskMgmtInstance().createStartTaskInstance();
  |             ti.setVariable("report_id", businessReport.getReportId());            
  |             ti.end();
  | 		} catch (Exception e) {
  | 			System.out.println("Unknown error in the SaveGo().");
  | 			return_code = Property.SQL_ERROR;
  | 			message = "?????????";
  | 			event_type = "";
  | 			e.getMessage();
  | 			e.printStackTrace();
  | 			transaction.rollback();
  | 		}finally{
  | 			hsession.close();
  | 			jbpmContext.close();
  | 		}
exception:15:06:16,671 [http8001-Processor25] ERROR LazyInitializationException : failed to lazily initialize a collection of role: org.jbpm.graph.def.Node.leavingTransitions, no session or session was closed
  | org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.jbpm.graph.def.Node.leavingTransitions, no session or session was closed
  | 	at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
  | 	at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
  | 	at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97)
  | 	at org.hibernate.collection.PersistentList.size(PersistentList.java:91)
  | 	at org.jbpm.graph.def.Node.getDefaultLeavingTransition(Node.java:217)
  | 	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:585)
  | 	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:147)
  | 	at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$57ae0d8c.getDefaultLeavingTransition(<generated>)
  | 	at org.jbpm.graph.exe.Token.signal(Token.java:136)
  | 	at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:475)
  | 	at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:389)
  | 	at buesiness.BusinessEngine.SaveGo(BusinessEngine.java:119)
  | 	at buesiness.BusinessEngine.exectue(BusinessEngine.java:63)
  | 	at org.apache.jsp.order_005fexec_jsp._jspService(order_005fexec_jsp.java:99)
  | 	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
  | 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
  | 	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
  | 	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
  | 	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
  | 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
  | 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
  | 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
  | 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
  | 	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245)
  | 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
  | 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
  | 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
  | 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195)
  | 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
  | 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
  | 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
  | 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
  | 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
  | 	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
  | 	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563)
  | 	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
  | 	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:209)
  | 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:670)
  | 	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:517)
  | 	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:575)
  | 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:666)
  | 	at java.lang.Thread.run(Thread.java:595)
thank you !!!!!

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