@Override
      public void actionPerformed(ActionEvent e) {
        final TreePath path = myWizardTree.getSelectionPath();
        if (path != null && 0 == myWizardTree.getModel().getChildCount(path.getLastPathComponent())) {
          handleSelect(false, null);
          return;
        }
        oldExpandAction.actionPerformed(e);
      }
@Override
      public void actionPerformed(ActionEvent e)