if (node == null) { return false; }
while (current != null && current != this) current = current.getParent();
	public boolean isNodeDescendant(DefaultMutableTreeNode node) {		// Variables		TreeNode	current;		// Sanity Check		if (node == null) {			return false;		} // if		// Search For Descendant		current = node;		while (current != null && current != this) {			current = current.getParent();		} // while		// Check for Descendant		if (current == this) {			return true;		} // if		// Otherwise, no		return false;	} // isNodeDescendant()