XStream facade to create ObjectOutputStream/ObjectInputStream

XStream already provides a mechanism for having an XML backed ObjectInputStream/ObjectOutputStream (necessary for implementing Serializable/Externalizable support).

A simple method should be added to the XStream facade making it easy to create one of these - allowing XStream to be used in many places as a drop in replacement to standard Java serialization.

So, instead of:

ObjectOutputStream oos = new ObjectOutputStream(out);
oos.writeObject(myObject);

You could do:

ObjectOutputStream oos = xstream.createObjectOutputStream(out, "root-element");
oos.writeObject(myObject);