@SuppressWarnings("unused")
private INodeForObject getRootNodeFromXstream()
throws MemInspectorException {
final XStream stream = new XStream();
FileInputStream inputStream = null;
final INodeForObject fromXML;
try {
inputStream = new FileInputStream(fileName);
fromXML = (INodeForObject) stream.fromXML(inputStream);
} catch (FileNotFoundException exception) {
throw new MemInspectorException(exception);