frame.setLayout(null);
  public void uninstallUI(JComponent c)  {    uninstallKeyboardActions();    uninstallComponents();    uninstallListeners();    uninstallDefaults();    frame.setLayout(null);    ((JComponent) frame.getRootPane().getGlassPane()).setOpaque(true);    frame.getRootPane().getGlassPane().setVisible(false);    frame = null;  }