final public void configuration_item() throws ParseException {
    if (jj_2_3(2147483647)) {
      block_configuration();
    } else {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case FOR:
        component_configuration();
        break;
      default:
        jj_la1[23] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
    }
  }