public static MemberIdentifier createMemberID(int port) {
    UUID uuid = UUID.randomUUID();
    try {
      return new MemberIdentifierFactoryImpl().create(new GMSMemberData(InetAddress.getLocalHost(),
          port, KnownVersion.CURRENT_ORDINAL, uuid.getMostSignificantBits(),
          uuid.getLeastSignificantBits(), -1));
    } catch (UnknownHostException e) {
      throw new RuntimeException(e);
    }
  }
Create a new membership ID that is preferred for coordinator and has a UUID established
geode-membership/src/integrationTest/java/org/apache/geode/distributed/internal/membership/gms/util/MemberIdentifierUtil.java