fv.close();
  public boolean gzclose()  {    if ((_fileValue == null) || (_fileValue == BooleanValue.FALSE)) {      return false;    }    FileValue fv = (FileValue) _fileValue;    try {      if( _gout != null ) {        _gout.close();        _gout = null;      }    }    catch (Exception e) {      throw QuercusModuleException.create(e);    }    fv.close();    return true;  }