protected void parseChildElements(String elementName, BaseElement parentElement, BpmnModel model, XMLStreamReader xtr) throws Exception {
    parseChildElements(elementName, parentElement, null, model, xtr);
  }
protected void parseChildElements ( String elementName , BaseElement parentElement , BpmnModel model , XMLStreamReader xtr ) throws Exception { parseChildElements ( elementName , parentElement , null , model , xtr ) ; }
To BpmnModel converter convenience methods