class BitSetIntSet extends GridSerializableCollection<Integer> implements IntSet {

    @Override public boolean add(Integer integer) {
        if (integer == null)
            throw new IllegalArgumentException("Negative or null values are not supported!");

        return add((int)integer);
    }

    public  BitSetIntSet();
    public  BitSetIntSet(int initCap);
    public  BitSetIntSet(int initCap, Collection<Integer> coll);

}