Right clicking on a tray icon deadlocks. It is reproducible on a Solaris system with AWT PIT build for mustang b51. This is reproducible 2 out of three times. I could not reproduce it on the b48.

To reproduce:
1. Run the attached manual testcase, passing the flag -DresultsDir=.
2. Click the checkbox 'Add a system tray icon' - this will add an icon to system tray
3. Move the mouse and right click the icon

Attached is the thread dump