Note: Also happens in the april fools snapshot which isn't listed as a version

Game stops on opening of worlds with a message saying 'Java(TM) platform SE binary has stopped working'. It only first happened with the recent April fools snapshot. The next day, I realised that it happened all-ways.

My Launcher log looks like this:

http://pastebin.com/NucHMCDH

It happens every time but I don't know why.