Constantly pressing the fullscreen button (f11) causes java to stop working and the game crashes.

going into and exiting fullscreen mode by pressing f11 quickly caused the game to crash.

What I expected to happen was...:
go into full screen and normal window

What actually happened was...:
the game froze and crashed
Steps to Reproduce:
1. Repeatedly tap the fullscreen hotkey (f11)
2. Game will freeze
3. ...