class AtomicPositiveInteger extends Number {

    public final int addAndGet(int delta) {
        if (delta < 0) {
            throw new IllegalArgumentException("delta " + delta + " < 0");
        }
        return indexUpdater.addAndGet(this, delta) & Integer.MAX_VALUE;
    }

    public  AtomicPositiveInteger();
    public  AtomicPositiveInteger(int initialValue);

}