@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    key = DataSerializer.readObject(in);
  }
Send RemoteFetchVersionMessage to the recipient for the given key

@return the processor used to fetch the VersionTag for the key
@throws RemoteOperationException if the member is no longer available
geode-core/src/main/java/org/apache/geode/internal/cache/tx/RemoteFetchVersionMessage.java