To Kumasasa : Yes I saw that, but it is wrong in my opinion.
MC-6665 describes a crash when switching to full screen. MC-21603 and MC-23207 describe a black screen when switching to full screen BUT NO CRASH - on my setup, the game continues to run, and it works ok without restarting when I press F11 again to revert to windowed mode.
So MC-21603 and MC-23207 may be duplicates but neither MC-21603 nor MC-23207 are similar to 6665, despite them being tagged as duplicates of MC-6665.
It looks to be close to https://mojang.atlassian.net/browse/MC-21603
21603 is also said to be resolved, but we're still experiencing something very similar. It may be noted that 21603 also happens in Mac OS 10.6.8
(indeed not duplicate with MC-6665 you linked to)
This bug is said to be resolved, but I'm still experiencing it in 1.6.2 (Mac OS 10.6.8, Java 1.6.0_51. Game works fine in windowed mode but black screen when switching to full screen.
Here is a report of a manually triggered crash. I triggered the crash while the game was running full screen (black screen then)