code: public void setEscapedFragment(String escapedFragment) throws URIException {
          if (escapedFragment == null) {
              _fragment = null;
              hash = 0;
              return;
          }
          setRawFragment(escapedFragment.toCharArray());
      }
docs: Set the escaped fragment string.
  
  @param escapedFragment the escaped fragment string
  @throws URIException escaped fragment not valid