[jboss-user] [JBoss jBPM] - Getting error to click commit button.

[tom_sri74]

Hi PaL

Can anybody tell the below error message what it cause?
The below issue come when I click commit button in a JSP.
I checked the code and database everything are proper. I am not able to find the pitfall. Appreciate if any body can response.

rgds
Tom

2006-10-11 17:47:19,778 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/DBIWeb].[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception
javax.faces.FacesException: Error calling action method of component with id dbiForm:_id107
	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.filter.AuthenticationFilter.doFilter(AuthenticationFilter.java:26)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jbpm.filter.PersistenceFilter.doFilter(PersistenceFilter.java:28)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jbpm.filter.ContextFilter.doFilter(ContextFilter.java:19)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jbpm.filter.LogFilter.doFilter(LogFilter.java:38)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jbpm.util.UTF8Filter.doFilter(UTF8Filter.java:56)
	at org.jbpm.util.UTF8Filter.doFilter(UTF8Filter.java:43)
	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:159)
	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:534)
Caused by: javax.faces.el.EvaluationException: Exception while invoking expression #{taskBean.commit}
	at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)
	at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
	... 41 more
Caused by: org.jbpm.graph.def.DelegationException
	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:299)
	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:293)
	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:293)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.invokeAssignmentHandler(TaskMgmtInstance.java:149)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.getInitializedSwimlaneInstance(TaskMgmtInstance.java:131)
	at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:131)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:102)
	at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:136)
	at org.jbpm.graph.def.Node.enter(Node.java:284)
	at org.jbpm.graph.def.Transition.take(Transition.java:92)
	at org.jbpm.graph.def.Node.leave(Node.java:349)
	at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:101)
	at org.jbpm.graph.node.Decision.execute(Decision.java:94)
	at org.jbpm.graph.def.Node.enter(Node.java:284)
	at org.jbpm.graph.def.Transition.take(Transition.java:92)
	at org.jbpm.graph.def.Node.leave(Node.java:349)
	at org.jbpm.graph.node.TaskNode.leave(TaskNode.java:167)
	at org.jbpm.graph.exe.Token.signal(Token.java:127)
	at org.jbpm.graph.exe.Token.signal(Token.java:92)
	at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:351)
	at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:274)
	at org.jbpm.bean.TaskBean.commit(TaskBean.java:2680)
	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:324)
	at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)
	... 42 more
Caused by: java.lang.NullPointerException
	at org.jbpm.instantiation.ProcessClassLoader.findClass(ProcessClassLoader.java:35)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
	at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:105)
	at org.jbpm.taskmgmt.exe.TaskMgmtInstance.invokeAssignmentHandler(TaskMgmtInstance.java:141)
	... 65 more

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