Minecraft 1.8 still enforces JAVA 6 on my new mac book pro

Bought a new Mac. My son wants to play minecraft. Bought the game. Guess what? The minecraft installer wants to revert the mac java 8 to ancient technology java 6 full of security holes.

Could you please update the mac installer so it uses a more recent version of JAVA?
I now need to play it in a windows virtual machine on my Mac.