Java SE (Java Platform, Standard Edition)

Hi there,

I'm having a little trouble while trying to restore JTree expansion state. While using the method

Enumeration en = jtree.getExpandedDescendants(new TreePath(jtree.getModel().getRoot()));

It returns me all the actual expanded nodes. No problem with that. The problem is that the TreePaths it stores aren't doing their thing when I try to restore the JTree state.
I do the following:

while(en.hasMoreElements()){
        TreePath tp = (TreePath)en.nextElement();
        jtreeQware.expandPath(tp);
}

Unfortunately it does not expand the tree paths! And if i try to get the row index based on the tree path it always return -1 ! Really odd...

int row = jtree.getRowForPath(tp)

This ALWAYS return -1. Anyone got an idea of what am I doing wrong?? Need help, please.