@Override
  public int hashCode() {
    int result;
    result = (myAttachedObject != null ? myAttachedObject.hashCode() : 0);
    result = 29 * result + (myDropPossible ? 1 : 0);
    result = 29 * result + (myExpectedDropResult != null ? myExpectedDropResult.hashCode() : 0);
    result = 29 * result + myHighlighting;
    return result;
  }
@Override
  public int hashCode()