public final boolean isPickupRestricted(final int itemId) {
        final ItemInformation i = getItemInformation(itemId);
        if (i == null) {
            return false;
        }
        return ((i.flag & 0x80) != 0 || GameConstants.isPickupRestricted(itemId)) && itemId != 4001168 && itemId != 4031306 && itemId != 4031307;
    }