Getting errors while deploying sample jBPM Workflow.

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

dynamolalit

Hi,

I have configured Alfresco 3.0 on JBoss 4.2.2 & I have created a sample workflow using eclipse as

<?xml version="1.0" encoding="UTF-8"?>

<process-definition 
  xmlns="urn:jbpm.org:jpdl-3.2"
  name="simple">
   <start-state name="start">
      <transition name="to_state" to="first">
         <action name="action" class="com.sample.action.MessageActionHandler">
            <message>Going to the first state!</message>
         </action>
      </transition>
   </start-state>
   <state name="first">
      <transition name="to_end" to="end">
         <action name="action" class="com.sample.action.MessageActionHandler">
            <message>About to finish!</message>
         </action>
      </transition>
   </state>
   <end-state name="end"></end-state>
</process-definition>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

But while using this workflow on content in my workspace,i am getting these errors on my alfresco server console.

10:01:39,229 INFO  [STDOUT] 10:01:39,219 User:admin ERROR [ui.common.Utils] A system error happened during the operation: null
java.lang.NullPointerException
        at org.alfresco.web.bean.workflow.WorkflowUtil.prepareTaskParams(WorkflowUtil.java:190)
        at org.alfresco.web.bean.workflow.StartWorkflowWizard.finishImpl(StartWorkflowWizard.java:185)
        at org.alfresco.web.bean.dialog.BaseDialogBean$1.execute(BaseDialogBean.java:121)
        at org.alfresco.web.bean.dialog.BaseDialogBean$1.execute(BaseDialogBean.java:118)
        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:320)
        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:227)
        at org.alfresco.web.bean.dialog.BaseDialogBean.finish(BaseDialogBean.java:127)
        at org.alfresco.web.bean.wizard.WizardManager.finish(WizardManager.java:580)
        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:132)
        at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:61)
        at javax.faces.component.UICommand.broadcast(UICommand.java:109)
        at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:97)
        at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:171)
        at org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:32)
        at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:95)
        at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:70)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:139)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.alfresco.web.app.servlet.AuthenticationFilter.doFilter(AuthenticationFilter.java:81)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
        at java.lang.Thread.run(Thread.java:595)

It can be the case that some more files are needed to deploy  this workflow but i am not getting any help.

Please help me resolve the issue.It is very urgent.

Thank You,
Regards,
Lalit

janv

Based on the stacktrace, the code currently requires a start task definition in order to set the start task node. For examples, please refer to the OOTB process definitions (eg. adhoc_processDefinition.xml) or alternatively: http://wiki.alfresco.com/wiki/WorkflowAdministration#Hand_developed_jPDL_XML_Definition

   …
   <start-state name="start">
      <task name="wf:submitAdhocTask" swimlane="initiator"/>
      <transition name="" to="adhoc"/>
   </start-state>
   …
‍‍‍‍‍‍‍‍

Regards,
Jan