return false;
      }
      if (aspect2 != other.aspect2) {
        return false;
      }
      return true;
    }

    @Override
    public int hashCode() {
      int result = 17;
      result = 37 * result + aspect1;
      result = 37 * result + aspect2;
      return result;
    }
  }

  /** Test class with invalid hashCode method. */
  private static class InvalidHashCodeObject {

        return false;
      }
      if (aspect2 != other.aspect2) {
        return false;
      }
      return true;
    }

    @Override
    public int hashCode() {
      int result = 17;
      result = 37 * result + aspect1;
      result = 37 * result + aspect2;
      return result;
    }
  }

  /** Test class with invalid hashCode method. */
  private static class InvalidHashCodeObject {