JTree, Knoten-Selektion durch Doppel-Klick

Einen Doppelklick auf einen Treenode kann man so feststellen:

final JTree tree = new JTree();
tree.addMouseListener(new MouseAdapter() {
   public void mousePressed(MouseEvent e) {
      int row = tree.getRowForLocation(e.getX(), e.getY());
      TreePath path = tree.getPathForLocation(e.getX(), e.getY());
      if (row != -1) 
         if (e.getClickCount() == 2)
            System.out.println("Row: " + row + "  Path: " + path + "  Node: " + tree.getLastSelectedPathComponent());
    }
});