@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    SortedIntSet set = (SortedIntSet)o;
    if (mySize != set.mySize) return false;
    return Arrays.equals(myData, 0, mySize, set.myData, 0, mySize);
  }
@Override
  public boolean equals(Object o)