code: @Override
      public void endElement(String uri, String localName, String qName) throws SAXException {
          if (HINT.equals(qName) && rule != null) {
              hintRules.add(rule);
              rule = null;
          }
      }
docs: Handles the end element event.
  
  @param uri the element's URI
  @param localName the local name
  @param qName the qualified name
  @throws SAXException thrown if there is an exception processing the
  element