@Override
  public ID[] getAllMembers(final ID[] arrayType) {
    final List<ID> keySet = latestView.getMembers();
    return keySet.toArray(arrayType);
  }
in order to avoid split-brain occurring when a member is shutting down due to race conditions
in view management we add it as a shutdown member when we receive a shutdown message. This is
not the same as a SHUNNED member.
geode-membership/src/main/java/org/apache/geode/distributed/internal/membership/gms/GMSMembership.java