1 Reply Latest reply on Jun 25, 2007 8:11 PM by Roberto Alonso Ramos Zapata

    LazyInitializationException

    Ricardo Marques Novice

      Hi guys, while getting the comments for a task instance using the command interface, i'm having this exception:

      12:19:00,265 ERROR [LazyInitializationException] failed to lazily initialize a collection of role: org.jbpm.taskmgmt.exe.TaskInstance.comments, no session or session was closed
      org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.jbpm.taskmgmt.exe.TaskInstance.comments, 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 com.pep.workflow.console.beans.Task.fetchComments(Task.java:189)
       at com.pep.workflow.console.beans.Task.initialize(Task.java:240)
       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.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)
       at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
       at javax.faces.component.UICommand.broadcast(UICommand.java:106)
       at javax.faces.component.UIData.broadcast(UIData.java:513)
       at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)
       at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:168)
       at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)
       at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
       at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
       at java.lang.Thread.run(Thread.java:595)
      
      


      I've have read some other post's regarding this issue but still have some question, i'm complitely newbie in hibernate, and I trying to figure out the best way to solve this.

      I'm wandering if the best approach is to write my hibernate query?


      thanks