@Override
  public void toData(DataOutput out,
      SerializationContext context) throws IOException {
    super.toData(out, context);
    out.writeInt(processorId);
    out.writeInt(newId);
  }
Empty constructor to support DataSerializable instantiation
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/IdentityUpdateMessage.java