@Override
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new java.lang.IllegalArgumentException();
      }

      switch (field) {
      case LOCAL_PORT:
        return isSetLocalPort();
      case HOST:
        return isSetHost();
      case OPTS:
        return isSetOpts();
      case EXTRA_ENVS:
        return isSetExtraEnvs();
      }
      throw new java.lang.IllegalStateException();
    }
@Override
    public boolean isSet(_Fields field)