Skelespawner Float Trap Minecraft 1

Due to a recent Minecraft update alpha 1.2.2 November 2010 skeletons swim much better than they did before.
My previous drowning trap wasnt working anymore.
I took advantage of their new swimming ability to trick them into swimming up into water with no exit at the top making them drown themselves.
I got the idea from this thread:

Источник: rutube.ru