Split JodaTime Interval into intervals

SplitInterval.java

    private static Collection<Interval> splitDuration(Interval interval, int chunks)
    {
        long startMillis = interval.getStartMillis();
        long endMillis = interval.getEndMillis();
        long durationMillis = endMillis - startMillis;
        long chunkSize = durationMillis / chunks;

        Collection<Interval> list = new ArrayList<Interval>();
        for (int i = 1; i <= chunks; ++i) {
            list.add(new Interval(startMillis, startMillis += chunkSize));
        }

        return list;
    }