private String getDesc(Object o) {
    if (o == null) {
      return "";
    } else if (o instanceof RemoteCacheCallback) {
      return o.toString();
    } else {
      return o.getClass().getName();
    }
  }
For use only by DataExternalizable mechanism
geode-core/src/main/java/org/apache/geode/internal/admin/remote/RemoteRegionAttributes.java