public static void blacklistItemFromMagnet(ItemStack stack){
  String key=getMagnetKey(stack);
  magnetBlacklist.add(key);
}

public static void blacklistItemFromMagnet ( ItemStack stack ) { String key = getMagnetKey ( stack ) ; magnetBlacklist . add ( key ) ; }
blacklists an item from being pulled by the ring of magnetization . short . max_value can be used as the stack ' s damage for a wildcard .
