I remember when it was on G4, I know that clip is still somewhere on the internet.
http://youtu.be/u57OlRl3V8EFirst result on google lol
what doesnt minecraft have nowadays
decent gameplay
a rendering engine that will work well on older machines due to its very low quality graphics (AHEM NOTCH why the forget would you make it in java of all languages)
You can't center all the blame on Java. Apparently the game is poorly optimized and isn't coded very well, as far as I know.