code: public DiffNode getChild(final NodePath nodePath)
  	{
  		if (parentNode != null)
  		{
  			return parentNode.getChild(nodePath.getElementSelectors());
  		}
  		else
  		{
  			return getChild(nodePath.getElementSelectors());
  		}
  	}
docs: Retrieve a child that matches the given absolute path, starting from the current node.
  
  @param nodePath The path from the object root to the requested child node.
  @return The requested child node or <code>null</code>.