private void appendToJobContext(String exitStatus) {
   String es = jobCtx.getExitStatus();
   if (es == null) {
     logger.fine("First addition to Job ExitStatus = " + es);
     jobCtx.setExitStatus(exitStatus);
   } else {
     String newExitStatus = es.concat(",").concat(exitStatus);
     logger.fine("Existing Job ExitStatus = " + es + " ; Updating to : " + newExitStatus);
     jobCtx.setExitStatus(newExitStatus);
   }
 }