Pastebin
That is the error log, I installed osu! and ran it, and it wouldn’t launch. I create a lot of mods for Minecraft and knew that this ran off Java, so instantly suspected Java. I was right. I have never seen this error though. I think it is something to do with Java, I have already put this on Java forums but they told me it wasn’t their problem : p
EDIT: Added full log here: Pastebin