Session Hibernate fermé de problème!

La fonction ci-dessous est la actionListener pour un bouton que j'ai dans mon application web, je suis à la suppression de l'ancienne choisi les lignes d'une table dans une base de données et de l'insertion de la de nouveaux à la base de données.

public void getSelectedExemptionItems(ActionEvent ae) {
Session hibernateSession;
Session hibernate2Session;
selectedExemptions = new ArrayList<ExemptionBean>();
for (ExemptionBean eBean : exemBean) { //iterating over the list of ExemptionBean class
if (selectedExemptionIDs.get(eBean.getExemptionID()).booleanValue()) {
selectedExemptions.add(eBean); //adding every ExemptionBean that is selected.
}
}
//getting importane session variables
SessionBean1 theSessionBean = (SessionBean1) FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("SessionBean1");
JAdmApplication admApplication = theSessionBean.getAdmApplication();
long admAppID = admApplication.getJAdmApplicationId();
//       ArrayList<JAdmAppExemption> admAppExemption = (ArrayList<JAdmAppExemption>)theSessionBean.getAdmAppExemption();
JAdmAppExemption admAppExem = new JAdmAppExemption();
//try catch : delete all previously chosen exemptions from database by logged-in user.
try {
hibernateSession = HibernateUtil.getAdmSessionFactory().getCurrentSession();
Transaction t = hibernateSession.beginTransaction();
t.begin();
String sequel = "DELETE FROM JAdmAppExemption WHERE createdby = ?";
Query q = hibernateSession.createQuery(sequel);
q.setParameter(0, theSessionBean.getPortalUserId());
} catch (Exception e){
System.out.println("Row could not be deledted from database!!");
}
//        adding all selected exemptions to the database
for (ExemptionBean e : selectedExemptions) {
admAppExem.setAdClientId(1000001);
admAppExem.setAdOrgId(1000001);
admAppExem.setCreated(getTimestamp());
admAppExem.setCreatedby(theSessionBean.getPortalUserId());
admAppExem.setIsactive('Y');
admAppExem.setJAdmAppExemptionId(getJAdmAppExemptionIdSequence());
admAppExem.setJAdmApplicationId(admAppID);
admAppExem.setJAdmExemptionId(e.getExemptionID());
admAppExem.setUpdated(getTimestamp());
admAppExem.setUpdatedby(theSessionBean.getPortalUserId());
hibernate2Session = HibernateUtil.getAdmSessionFactory().getCurrentSession(); //session is opened here!
Transaction tx = hibernate2Session.beginTransaction();
tx.begin();
try {
hibernate2Session.beginTransaction();
hibernate2Session.save(admAppExem); //is it save or saveOrUpdate??
hibernate2Session.getTransaction().commit();
updateJAdmAppExemptionIdSequence();
} catch (Throwable ex){
if (hibernate2Session.getTransaction().isActive()) {
hibernate2Session.getTransaction().rollback();
}
ex.printStackTrace();
}
}
}

Je reçois une exception : la fermeture de la Session !! quelqu'un peut-il expliquer la façon dont les sessions sont fermées en veille prolongée (automatiquement?) et comment travailler avec eux..

voici la description détaillée trace de la pile de l'exception:

javax.faces.FacesException: org.hibernate.SessionException: Session is closed!
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:90)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:18)
at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:132)
at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:74)
at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:31)
at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24)
at com.icesoft.faces.webapp.http.servlet.BasicAdaptingServlet.service(BasicAdaptingServlet.java:16)
at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:53)
at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:26)
at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:131)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
at java.lang.Thread.run(Thread.java:619)
Caused by: javax.faces.el.EvaluationException: org.hibernate.SessionException: Session is closed!
at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
at javax.faces.component.UICommand.broadcast(UICommand.java:380)
at com.icesoft.faces.component.panelseries.UISeries$RowEvent.broadcast(UISeries.java:617)
at com.icesoft.faces.component.panelseries.UISeries.broadcast(UISeries.java:285)
at com.icesoft.faces.component.paneltabset.PanelTabSet.broadcast(PanelTabSet.java:320)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
... 27 more
Caused by: org.hibernate.SessionException: Session is closed!
at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:49)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1319)
at sun.reflect.GeneratedMethodAccessor2480.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:301)
at $Proxy233.beginTransaction(Unknown Source)
at univportal.AdmissionApplication.Application.getSelectedExemptionItems(Application.java:1595)
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:597)
at org.apache.el.parser.AstValue.invoke(AstValue.java:172)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
... 34 more

Merci,

OriginalL'auteur Saher Ahwal | 2010-06-29