@SuppressWarnings("UnusedParameters")
  private ID getMemberFromView(ID jgId, short version) {
    return services.getJoinLeave().getMemberID(jgId);
  }
returns the member ID for the given GMSMember object
geode-membership/src/main/java/org/apache/geode/distributed/internal/membership/gms/messenger/JGroupsMessenger.java