@Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;
      OffsetNavigationItem item = (OffsetNavigationItem)o;
      return myFile.equals(item.myFile) &&
             myValue.equals(item.myValue);
    }
@Override
    public boolean equals(Object o)