[jboss-user] [JBoss jBPM] - Problems , when inserting data from the database.

[mr.sathya]

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 at 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 at 6258e1
14:41:25,452 DEBUG [Services] closing service 'authentication': org.jbpm.security.authentication.DefaultAuthenticationSe
rvice at 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

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