public static void moveSelectedRow(final JTree tree, final int direction) {
final TreePath selectionPath = tree.getSelectionPath();
final DefaultMutableTreeNode treeNode =
(DefaultMutableTreeNode) selectionPath.getLastPathComponent();
final DefaultMutableTreeNode parent = (DefaultMutableTreeNode) treeNode.getParent();
final int idx = parent.getIndex(treeNode);
parent.remove(treeNode);
parent.insert(treeNode, idx + direction);
((DefaultTreeModel) tree.getModel()).reload(parent);
selectNode(tree, treeNode);
}
