4 Replies Latest reply: Dec 16, 2005 12:09 PM by for Jbpm RSS

Servlet.service() for servlet jsp threw exception

for Jbpm Novice

Hi,

I was trying to deploy my processarchive which I couldn't deploy with Eclipse IDE-> move curser to your par process ->right click -> select deploy process archieve.

So I followed this post
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=71043
and could successfully deploy my process.

this activity is logged in my log as :

16:12:30,662 DEBUG [DeployServlet] deploying archive file:///JBPM_HOME/build/ECSDemo4.par
16:12:30,847 DEBUG [FileDefinition] preparing file 'processimage.jpg' for storage in the database
16:12:30,852 DEBUG [FileDefinition] preparing file 'gpd.xml' for storage in the database
16:12:30,864 DEBUG [ProcessArchiveDeployer] starting transaction to deploy process ProcessDefinition(ECSDemo4)
16:12:31,486 DEBUG [ProcessArchiveDeployer] flushing...
16:12:31,795 DEBUG [ProcessArchiveDeployer] committing transaction to deploy process ProcessDefinition(ECSDemo4)
16:12:31,857 DEBUG [PersistenceContext] committing transaction


But when I log in and click on my process to start new process execution I get error as
16:14:00,459 DEBUG [GraphElement] event 'process-start' on 'ProcessDefinition(ECSDemo4)' for 'Token(/)'
16:14:00,466 DEBUG [GraphElement] event 'task-create' on 'Task(Start)' for 'Token(/)'
16:14:00,481 DEBUG [GraphElement] event 'task-assign' on 'Task(Start)' for 'Token(/)'
16:14:00,516 DEBUG [TaskBean] initialized availableTransitions null
16:14:01,580 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
 at org.jbpm.webapp.tag.ProcessImageTag.extractBoxConstraint(ProcessImageTag.java:98)
 at org.jbpm.webapp.tag.ProcessImageTag.writeTable(ProcessImageTag.java:69)
 at org.jbpm.webapp.tag.ProcessImageTag.doEndTag(ProcessImageTag.java:42)
 at org.apache.jsp.task_jsp._jspx_meth_jbpm_processimage_0(org.apache.jsp.task_jsp:722)
 at org.apache.jsp.task_jsp._jspx_meth_f_view_0(org.apache.jsp.task_jsp:168)
 at org.apache.jsp.task_jsp._jspService(org.apache.jsp.task_jsp:116)
 at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
 at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
 at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
 at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
 at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
 at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
 at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
 at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
 at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:300)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:95)
 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:25)
 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.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.webapp.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.webapp.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.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:595)
16:14:01,588 DEBUG [PersistenceContext] rolling back transaction
16:14:01,606 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception
javax.faces.FacesException: org.apache.jasper.JasperException
 at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:425)
 at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
 at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:300)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:95)
 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:25)
 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.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.webapp.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.webapp.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.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:595)
Caused by: org.apache.jasper.JasperException
 at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
 at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
 at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
 at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
 at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
 at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
 at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
 ... 34 more


One suggestion was to check my processimage.
I checked my processimage its not cropped or anything. Its still clear.


If any one has/ is faced/facing such kind of problem , I would like to know some hints/suggestions...

Thaks

  • 1. Re: Servlet.service() for servlet jsp threw exception
    for Jbpm Novice

    Hi!

    I am getting these exception for most of my processes.. Whenever I try to
    Start New Process Execution..
    even if the Process is exact copy of websale example.

    16:16:01,516 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception
    javax.faces.FacesException: org.apache.jasper.JasperException
    at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:425)
    at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
    at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:300)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:95)
    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:25)
    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.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.webapp.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.webapp.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.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:595)
    Caused by: org.apache.jasper.JasperException
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
    at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
    ... 34 more


    Please Help!



  • 2. Re: Servlet.service() for servlet jsp threw exception
    for Jbpm Novice

    Hi!

    I also Always get exceptions whenever I try to *save and close * the instance.

    17:06:54,286 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:25)
    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.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.webapp.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.webapp.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.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: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)
    ... 37 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.executeActions(GraphElement.java:195)
    at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:149)
    at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:133)
    at org.jbpm.graph.def.Transition.take(Transition.java:79)
    at org.jbpm.graph.def.Node.leave(Node.java:349)
    at org.jbpm.graph.node.StartState.leave(StartState.java:73)
    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.webapp.bean.TaskBean.saveAndClose(TaskBean.java:123)
    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)
    ... 38 more
    Caused by: java.lang.NullPointerException
    at org.jbpm.graph.def.Action.execute(Action.java:79)
    at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:186)
    ... 53 more

    Thanks!



  • 3. Re: Servlet.service() for servlet jsp threw exception
    Ronald van Kuijk Master

    Is there more logging in the servlet engine? I've seen comparable errors, but there was always more detail in the logging.

    Can you see what is going on in

    at org.jbpm.graph.def.Action.execute(Action.java:79)
    at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:186)
    ... 53 more

  • 4. Re: Servlet.service() for servlet jsp threw exception
    for Jbpm Novice

    Looked in to code :
    in GraphElement.java error is at

    action.execute(ExecutionContext)


    which traces back to
    actionHandler.execite(executionContext)


    At this place ActionHandler must be null

    ActionHandler actionHandler =(ActionHandler) actionDelegation.getInstance();


    that look quite acceptable as actionDelegation is not set yet (???)

    I still cant understand what is referncedAction ??

    I will again go through code. Need to understand it better.

    Any opinion about * Thu Dec 15, 2005 16:25 PM * error post?



    Thanks!