Adding vertical scroll to a JPopupMenu?

Question

I would like to add a way to scroll through menu items in a JPopupMenu, much like scrolling through a list of items in a JComboBox.

Let\'s

Answer 1

Basically you can add any JComponents to the JPopupMenu, you can add JScrollpane to the JPopup by nesting JPanel / JList with another JComponents,

Notice but there is rule that swing GUI doesn't allowing two lightweight popup window in same time, best example is common Bug in Swing about JComboBox in the JPopup

you have look at JWindow, create once time and re_use that for another Action, nothing best around as to check how popup JWindow really works for JCalendar by Kai Toedter