Discussion :

[sheridan08]

Bonjour a tous , je travaille sur une application web , un user se connecte , remplie une formulaire , les donnes saisite passe par cette methode que voici:

Code :

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public ProcessInstance startNewProcessInstance(String processDefinitionName) {
 
	        JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
	        try {/*recupirer le graphe de l'instance*/
	            GraphSession graphSession = jbpmContext.getGraphSession(); 
	              /*recupirer le dernier processus déployer*/
 
	            ProcessDefinition definition = graphSession.findLatestProcessDefinition(processDefinitionName);
 
	            ProcessInstance instance = definition.createProcessInstance();
	           	            Token token = instance.getRootToken(); 
			     System.out.println("**********la premiere tâche  qui doit etre executée est:"+token.getNode().getName());
 
			     // c'est a partir de cette ligne que mes probleme commenceTaskInstancetach=instance.getTaskMgmtInstance().createStartTaskInstance();
			      // Now the process is in the state 's'.
			     // System.out.println("**********la deuxième tâche a executéeest:"+token.getNode().getName());
 
			     System.out.println("**********la premiere tâche a executéeest:"+token.getNode().getName());
			     System.out.println("je suis en train d'afficher une task instance(creation)******"+tach);
 
			    // System.out.println("le reponsable de la taskinstance===="+taskInstance.getActorId());
			      Map<String, Object> taskVariables = new HashMap<String, Object>();
			         taskVariables.put("nom", "bendimerad");
			         taskVariables.put("prenom", "feriel");
			         taskVariables.put("gradee"," informaticienne");
			         tach.addVariables(taskVariables);
			         tach.end("valider");
			         //fin d'ajout
 
	            long id = instance.getId(); /*recupirere l'ID de process creer*/
	            jbpmContext.save(instance); /*enregistrer*/
 
	            return instance;
	        } finally {
	            jbpmContext.close();
	        }

les erreurs affiché dans la console sont:

Code :

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10:55:04,002 INFO  [STDOUT] **********la premiere tâche  qui doit etre executée est:lancer demande de conge
10:55:04,008 ERROR [LazyInitializationException] 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.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:166)
	at org.jbpm.taskmgmt.def.Task_$$_javassist_29.getName(Task_$$_javassist_29.java)
	at org.jbpm.taskmgmt.exe.TaskInstance.setTask(TaskInstance.java:100)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:124)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createStartTaskInstance(TaskMgmtInstance.java:386)
	at com.application.beans.JbpmDemandeConge.remplirFormulaire1(JbpmDemandeConge.java:175)
	at com.application.servlets.jbpmControl.doPost(jbpmControl.java:15)
	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: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.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Unknown Source)
10:55:04,011 ERROR [[jbpmControl]] "Servlet.service()" pour la servlet jbpmControl a généré une exception
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.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:166)
	at org.jbpm.taskmgmt.def.Task_$$_javassist_29.getName(Task_$$_javassist_29.java)
	at org.jbpm.taskmgmt.exe.TaskInstance.setTask(TaskInstance.java:100)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:124)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createStartTaskInstance(TaskMgmtInstance.java:386)
	at com.application.beans.JbpmDemandeConge.remplirFormulaire1(JbpmDemandeConge.java:175)
	at com.application.servlets.jbpmControl.doPost(jbpmControl.java:15)
	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: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.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Unknown Source)

j'ai essayé de mettre lazy a false , mais je ne sais pas ou la positionner , si quelqu'un a une idée du probleme