ADDITIONAL SYSTEM INFORMATION :
This is on Linux mint, 21.2, Cinnamon.

A DESCRIPTION OF THE PROBLEM :
I have a JMenu popup menu in a JTreeView and any menu item that covers part of the task panel is not selectable.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
I first saw this in NetBeans (It has long popup menus in its tree view) After checking one of my applications, moving it so the popup menu will cover the panel, it doesn't allow the menu to be selected either.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The menu item can be clicked
ACTUAL -
The menu item cannot be clicked

CUSTOMER SUBMITTED WORKAROUND :
Make sure your JTreeView's popup menu is high enough not to cover part of the panel

FREQUENCY : always