Adding a vertical separator in PopupMenu, in the task bar

Question

How can I add a vertical separator in the pop up menu of the app in the task bar ?

   tray = SystemTray.getSystemTray();             
   openMenuItem = new MenuI         


        

Answer 1

ideas

1. add Borders (MatteBorders for example) to the JMenuItem(s)

2. add JPanel to the JPopup

   • have to set BorderLayout for JPopup and put JPanel to the CENTER area (and/or with Borders too)

   • set BorderLayout for JPanel

   • there put JSeparator to the EAST or WEST area (depends or direction)

   • put there another JPanel with JButtons that simulating JMenuItem (doesn't difrerence on 1st sight) with output to the Swing Action or ActionListener

3. the same things with JWindow (I using by default instead JPopup or ToolTip) instead of JPopup

4. maybe I'm wrong but JPopup looks like as chameleon

   • once time as JPanel,

   • another as JWindow,

   • sorry no deepest knowledge, interest about