private boolean isNew(final ID m) {
    return !latestView.contains(m) && !surpriseMembers.containsKey(m);
  }
Indicate whether the given member is in the zombie list (dead or dying)

@param m the member in question

@return true if the given member is a zombie
geode-membership/src/main/java/org/apache/geode/distributed/internal/membership/gms/GMSMembership.java