public int next() {
        while(ordinal < previousOrdinalsLength) {
            ordinal = populatedOrdinals.nextClearBit(ordinal + 1);
            if(previousOrdinals.get(ordinal))
                return ordinal;
        }

        return ORDINAL_NONE;
    }
@Test
    public void iteratesOverAddedOrdinals() {
        RemovedOrdinalIterator iterFlip = new RemovedOrdinalIterator(PREVIOUS_ORDINALS, CURRENT_ORDINALS, true);

        Assert.assertEquals(5, iterFlip.next());
        Assert.assertEquals(8, iterFlip.next());
        Assert.assertEquals(-1, iterFlip.next());
    }