final public void context_item() throws ParseException {
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case LIBRARY:
      library_clause();
      break;
    case USE:
      use_clause();
      break;
    default:
      jj_la1[2] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
  }