Escape key needs to be pressed twice to get focus away from the empty/diabled Menu.
This is on Windows OS with XP L&F and is reproducible with the swing pit build 7.0 b07.
Steps to reproduce:
Compile, and Run the attached test with
java -Dswing.defaultlaf=com.sun.java.swing.plaf.windows.WindowsLookAndFeel MenuTest
When the UI comes up observe that the focus is by default on Button1.
1)Click on BuggyMenu1/BuggyMenu3. Focus moves away from Button1.
(BuggyMenu1 and BuggyMenu3 are empty menus)
a) Click escape once.
Expected behavior
Focus should move to Button1.
Actual Behavior
Nothing Happens
b)Click Escape again - focus moves to Button1

2)Now click on BuggyMenu1, Press right arrow to get Disabled Buggymenu2 into focus, Click on BuggyMenu2
Repeat a) & b) to bserve the incorrect same behavior

3)Now click on menu named Four, scroll down and then click on BuggyMenu4( this is a submenu).
Repeat a) & b) to observe same incorrect behavior.

4)Press Shift +F10 to get the Popup menu. Click on buggy1/buggy2
Repeat a) & b) to observe same incorrect behavior.