@Override
    public String toString() {
      StringBuilder buff = new StringBuilder();
      buff.append("UpdateAttributesMessage (adviseePath=");
      buff.append(adviseePath);
      buff.append("; processorId=");
      buff.append(processorId);
      buff.append("; profile=");
      buff.append(profile);
      if (exchangeProfiles) {
        buff.append("; exchangeProfiles");
      }
      if (removeProfile) {
        buff.append("; removeProfile");
      }
      buff.append(")");
      return buff.toString();
    }
If this processor being used by controller then return ALL members; otherwise defer to super.

@return a Set of the current members
@since GemFire 5.7
geode-core/src/main/java/org/apache/geode/internal/cache/UpdateAttributesProcessor.java