assertBitEquals(x + y, a.get());
      }
    }
  }

  /** getAndAccumulate with max stores max of given value to current, and returns previous value */
  public void testGetAndAccumulateWithMax() {
    for (double x : VALUES) {
      for (double y : VALUES) {
        AtomicDouble a = new AtomicDouble(x);
        double z = a.getAndAccumulate(y, Double::max);
        double expectedMax = max(x, y);