The title says it. I've looked around and couldn't find anything.

HarvestDropsEvent

clear list.

 

OR - If your customBlock:

Use:

getItemDropped

quantityDropped

Or:

getDrops - for total power over drops (like the event). Return empty list.

Thanks, will this work?

@Override
public ArrayList<ItemStack> getDrops(World world, int posX, int posY, int posZ, int metadata, int fortune){
    return new ArrayList<ItemStack>();
}

It should

Ya, Minecraft is weird. On good days everything works, on bad days the same thing crashes the game.