@Override
    public int size()
    {
        return IndexedQueueSizeUtil.size(this, IndexedQueueSizeUtil.IGNORE_PARITY_DIVISOR);
    }
@param initialCapacity the queue initial capacity. If chunk size is fixed this will be the chunk size.
                       Must be 2 or more.
jctools-core/src/main/java/org/jctools/queues/BaseMpscLinkedArrayQueue.java