2 Replies Latest reply on Mar 10, 2015 6:20 PM by Marco Rietveld

    Null Pointer Exception

    Hector Caicedo Newbie

      Hi everyone   I've been creating a fairly complex process with   jBPM v6.1 beta2. This process uses several "Service Task" custom created nodes. After a while of editing properties I begin receiving a null pointer exception error. The big problem with this was that I could not longer edit the process on the web editor. Playing around with the code I found that correcting the source code on two places fix the problem:

       

      1) In the file

         jbpm-designer-6.1.0.Beta2/jbpm-designer-backend/src/main/java/org/jbpm/designer/bpmn2/impl/Bpmn2JsonMarshaller.java

       

         line 1475. Replace this

          if(dia.getTargetRef().getId().equals(din.getId())) {

        

         with this

          if(dia.getTargetRef() != null && dia.getTargetRef().getId().equals(din.getId())) {

       

      2) In the file

        jbpm-6.1.0.Beta2/jbpm-bpmn2/src/main/java/org/jbpm/bpmn2/xml/TaskHandler.java

        line 93 replace this

         if ( "sourceRef".equals(subNode.getNodeName()))

       

      with this

         if (subNode != null && subNode.getNextSibling() != null && "sourceRef".equals(subNode.getNodeName()))

       

      Now the process is back working again and I can fix the problem that prevent the deployment on first place