title: Background image for frame is covering components
body: <p>I am facing a problem with <code>JFrame</code>, when I am adding a background Image to frame, all the other components are hidden under the image, but I want to have it in opposite way, that everything goes on top of image (<code>JButton</code>, <code>JPasswordField</code> etc.) </p>
  
  <p>Thank's for your effort and time.</p>
  
  <pre><code>    setUndecorated(true);
      sestSize(new Dimension(width, height));
      window.setLayout(null);
      setLocationRelativeTo(null);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setTitle("MyFrame\u2122");
      getContentPane().add(window);
      setResizable(false);
      setContentPane(new JLabel(new ImageIcon("C:/Users/path/to/some/image/Image.jpg")));
  </code></pre>