IDs of MenuItems are weird

Hello,

I've created a menubar with four (!) items. I set the command to

Command click = new Command() {

            @Override
            public void menuSelected(MenuItem selectedItem) {
                Notification.show("Clicked " + selectedItem.getId());
            }
            
        };

The notifcations shows ...

• ... "Clicked 2" for the first item
• ... "Clicked 3" for the second item
• ... "Clicked 4" for the third item
• ... "Clicked 5" for the fouth item

However, I would excpect to see "Clicked 0", "Clicked 1" and so on or at least "Clicked 1", "Clicked 2" ...
Why are the ids of MenuItems that strange? And are they reliable? Can I use them to refer to a particular item?

Thanks :)

Knee-jerk reaction says that item 0 is the menu bar itself, while item 1 is the submenu container.

Patrik Lindström: Knee-jerk reaction says that item 0 is the menu bar itself, while item 1 is the submenu container.

Ah, thank you :)