如何解决java.lang.ClassCastException：javax.swing.JList $ 3无法转换为javax.swing.DefaultListModel

Question

当我运行该应用程序时，我正在构建一个新的应用程序。

 private void userPermession(){
 try {
     DefaultListModel model = new DefaultListModel();
     String sql="select * from userMenu order by menuno";
        pst = conn.prepareStatement(sql);
        rs = pst.executeQuery();
          while(rs.next()){
          String m = rs.getString("menuName");
          model.addElement(m);
          }
          lstMenu.setModel(model);

    } catch (SQLException ex) {
        JOptionPane.showMessageDialog(null, ex, "Error", HEIGHT);
    }  
}