Problems ,when inserting data from the database.
Hi Friends and Kukultjee sir,
I am new to jbpm.Hope u will help me in solving this Problem..
I am using Jbpm-3.1.4 and Jboss 4.0.2 as apllication server and database MsSQL ....
I developed processdefinition.xml file and deployed in jbpm-3.1.4 .it is running successfully with hardcoding values...
Now,what i am doing is i am inserting the values from the database using
stored procedure directly to the first node ie.startstate which contains
two textboxes i.e projectname,plan status .after
executing the storedprocedure the corresponding values are populated in
these textboxes..Up to Now..it's Ok..But after clicking the 'Save and Close' button
it is generating the following errors..
exception stacktrace:
14:41:25,436 DEBUG [JbpmContext] closing JbpmContext
14:41:25,436 DEBUG [Services] closing service 'persistence': org.jbpm.persistence.db.DbPersistenceService@19707
14:41:25,436 DEBUG [DbPersistenceService] committing hibernate transaction
14:41:25,452 INFO [STDOUT] couldn't commit hibernate session
14:41:25,452 DEBUG [DbPersistenceService] closing hibernate session
14:41:25,452 DEBUG [Services] closing service 'logging': org.jbpm.logging.db.DbLoggingService@6258e1
14:41:25,452 DEBUG [Services] closing service 'authentication': org.jbpm.security.authentication.DefaultAuthenticationSe
rvice@b9242e
14:41:25,452 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception
javax.faces.FacesException: Error calling action method of component with id taskform:transitionButton
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:90)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:164)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:271)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:94)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jbpm.webapp.filter.AuthenticationFilter.doFilter(AuthenticationFilter.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jbpm.web.JbpmContextFilter.doFilter(JbpmContextFilter.java:83)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:62)
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:81)
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.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
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:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
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)
Caused by: javax.faces.el.EvaluationException: Exception while invoking expression #{taskBean.saveAndClose}
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
... 34 more
Caused by: org.jbpm.graph.def.DelegationException
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:247)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.getInitializedSwimlaneInstance(TaskMgmtInstance.java:202)
at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:202)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:157)
at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:177)
at org.jbpm.graph.def.Node.enter(Node.java:321)
at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke()
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$1b65fd46.enter()
at org.jbpm.graph.def.Transition.take(Transition.java:129)
at org.jbpm.graph.def.Node.leave(Node.java:399)
at org.jbpm.graph.node.TaskNode.leave(TaskNode.java:213)
at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke()
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$1b65fd46.leave()
at org.jbpm.graph.exe.Token.signal(Token.java:181)
at org.jbpm.graph.exe.Token.signal(Token.java:149)
at org.jbpm.graph.exe.Token$$FastClassByCGLIB$$74df1c6e.invoke()
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
at org.jbpm.graph.exe.Token$$EnhancerByCGLIB$$82f38682.signal()
at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:469)
at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:408)
at org.jbpm.taskmgmt.exe.TaskInstance$$FastClassByCGLIB$$cb2c21af.invoke()
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
at org.jbpm.taskmgmt.exe.TaskInstance$$EnhancerByCGLIB$$7b99ebe5.end()
at org.jbpm.webapp.bean.TaskBean.saveAndClose(TaskBean.java:189)
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)
... 35 more
Caused by: org.jbpm.identity.assignment.ExpressionAssignmentException: couldn't resolve assignment expression 'user(Aari
f)'
at org.jbpm.identity.assignment.ExpressionAssignmentHandler.assign(ExpressionAssignmentHandler.java:104)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignmentDelegation(TaskMgmtInstance.java:259)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:228)
... 69 more
Caused by: java.lang.NullPointerException
at org.jbpm.identity.hibernate.IdentitySession.getUserByName(IdentitySession.java:168)
at org.jbpm.identity.assignment.ExpressionAssignmentHandler.getUserByName(ExpressionAssignmentHandler.java:226)
at org.jbpm.identity.assignment.ExpressionAssignmentHandler.resolveFirstTerm(ExpressionAssignmentHandler.java:15
6)
at org.jbpm.identity.assignment.ExpressionAssignmentHandler.assign(ExpressionAssignmentHandler.java:80)
... 71 more
I tried and didnt find the solution Hope u will help me in this
Thanx in Advance...
-sathya
