Navigating to a Selected node in a JTree

Hi
I have a Jtree which has nodes and sub nodes.Whenever I expand a node and click on its subnode I want to highlight/navigate to that subnode in the tree.
e.g:
Root
--- node1
--node2
--node3
--- node2
--node4
When I expand node1 and click on node2 I want the other node2 highlighted.
I tried the following thing but it does not work:
public void valueChanged(TreeSelectionEvent e) {
Object[] obj = new Object[2];
obj[0] = (DefaultMutableTreeNode)node.getPath()[0].getChildAt(0);
obj[1] = (DefaultMutableTreeNode)node.getPath()[0].getChildAt(1);
TreePath tp=new TreePath(obj);
tree.setSelectionPath(tp);
Any suggestions??

thanks a lot for all your inputs.I was able to solve the problem using the following code:
DefaultTreeModel dt = (DefaultTreeModel )tree.getModel();
TreeNode[] nodes = dt.getPathToRoot(childNode);
TreePath path = new TreePath(nodes);
tree.scrollPathToVisible(path);
tree.setSelectionPath(path);
One of the things which I was doing incorrectly was creating the array of nodes to be passed to the treepath constructor manulaly.When I replaced it with the getPathToRoot method of the model it worked!!..
Thanks a lot once again!!

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