CLASS cjr net/minecraft/world/gen/surfacebuilder/NetherSurfaceBuilder
	FIELD S GLOWSTONE Lbvh;
	FIELD a seed J
	FIELD b noise Lckb;
	FIELD c CAVE_AIR Lbvh;
	FIELD d NETHERRACK Lbvh;
	FIELD e GRAVEL Lbvh;
