private String getActivitiJobXml(String namespace, String jobName) {
   BpmnModel bpmnModel = new BpmnModel();
   Process process = new Process();
   process.setId(namespace + '.' + jobName);
   {
     StartEvent element = new StartEvent();
     element.setId("start");
     process.addFlowElement(element);
   }
   {
     EndEvent element = new EndEvent();
     element.setId("end");
     process.addFlowElement(element);
   }
   process.addFlowElement(new SequenceFlow("start", "end"));
   bpmnModel.addProcess(process);
   return getActivitiXmlFromBpmnModel(bpmnModel);
 }