code: private static SAXParser getSAXParser() {
          SoftReference<SAXParser> ref = PARSER.get();
          SAXParser result = ref.get();
          if (result == null) {
              Exception thrown;
              try {
                  result = SAX_FACTORY.newSAXParser();
                  ref = new SoftReference<SAXParser>(result);
                  PARSER.set(ref);
                  return result;
              } catch (ParserConfigurationException ex) {
                  thrown = ex;
              } catch (SAXException ex) {
                  thrown = ex;
              }
              throw(new IllegalStateException(
                      "Could not create SAX parser", thrown));
          } else {
              result.reset();
              return result;
          }
      }
docs: Gets a SAXParser for use in parsing incoming messages.
  
  @return parser instance