code: public void initialise(XMLReader reader, AbstractGpxParserDefault parent) {
          setReader(reader);
          setParent(parent);
          setContentBuffer(parent.getContentBuffer());
          setWptPreparedStmt(parent.getWptPreparedStmt());
          setElementNames(parent.getElementNames());
          setCurrentPoint(parent.getCurrentPoint());
      }
docs: Create a new specific parser. It has in memory the default parser, the
  contentBuffer, the elementNames and the currentPoint.
  
  @param reader The XMLReader used in the default class
  @param parent The parser used in the default class