class BitSetIntSet extends GridSerializableCollection<Integer> implements IntSet {

    @Override public boolean contains(Object o) {
        if (o == null)
            throw new NullPointerException("Null values are not supported!");

        return contains((int)o);
    }

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

}