[jboss-user] [JBoss jBPM] - get processinstance with task id

[galvino]

hi every body, 
i want to get a processinstance by using a task id, 
i am using:

  | public ProcessInstance getProcessInstance(String taskId){
  | 		jbpmContext=jbpmConfiguration.createJbpmContext();
  | 		try{
  | 			 taskInstance=this.getTaskinstanceByID(taskId);
  | 			 processInstance=taskInstance.getTaskMgmtInstance().getProcessInstance();	
  | 			 System.out.println("\n  id processinstance:   "+processInstance.getId());
  | //			 processInstance=graphSession.getProcessInstance(processInst.getId());
  | 		}catch(Exception exception){exception.printStackTrace();}
  | 		finally{
  | 			jbpmContext.close();
  | 		}
  | 		return processInstance;
  | 	}
  | 

where :


  | public TaskInstance getTaskinstanceByID(String taskInstanceId){
  | 		try{
  | 		jbpmContext=jbpmConfiguration.createJbpmContext();
  | 		taskInstance = jbpmContext.getTaskInstance(Long.parseLong(taskInstanceId));
  | 		}finally{
  | 			jbpmContext.close();
  | 		}
  | 		return taskInstance;
  | 	}
  | 

there is an error when it execute:

  | processInstance=taskInstance.getTaskMgmtInstance().getProcessInstance();	
  | 

error is:


  | GRAVE: could not initialize proxy - the owning Session was closed
  | org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed
  | 	at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:60)
  | 	at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
  | 	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:150)
  | 	at org.jbpm.taskmgmt.exe.TaskMgmtInstance$$EnhancerByCGLIB$$6d252382.getProcessInstance(<generated>)
  | 	at com.savoi.business.TaskBusiness.getProcessInstance(TaskBusiness.java:80)
  | 	at com.savoi.actions.ValidateAction.performAction(ValidateAction.java:48)
  | 	at com.savoi.actions.BaseAction.execute(BaseAction.java:17)
  | 	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
  | 	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
  | 	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
  | 	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
  | 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
  | 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  | 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
  | 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
  | 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  | 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  | 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  | 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
  | 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
  | 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
  | 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
  | 	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
  | 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
  | 	at java.lang.Thread.run(Unknown Source)
  | 
  | 



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