public static Tree.Node getTreeNode(final Actor actor) {
        final LmlUserObject userObject = getOptionalLmlUserObject(actor);
        if (userObject != null) {
            return userObject.getNode();
        }
        return null;
    }
public static Tree . Node getTreeNode ( final Actor actor ) { final LmlUserObject userObject = getOptionalLmlUserObject ( actor ) ; if ( userObject != null ) { return userObject . getNode ( ) ; } return null ; }
@param actor might be a tree node.
@return tree node containing the actor if it is a tree node or null.