@Override
    public int compareTo(SelfComparableExample o) {
      return 0;
    }
  }

  public void testBuilderGenerics_selfComparable() {
    ImmutableSortedMap.Builder<SelfComparableExample, Object> unusedNatural =
        ImmutableSortedMap.naturalOrder();

    ImmutableSortedMap.Builder<SelfComparableExample, Object> unusedReverse =

    @Override
    public int compareTo(SelfComparableExample o) {
      return 0;
    }
  }

  public void testBuilderGenerics_selfComparable() {
    // testing simple creation
    ImmutableSortedSet.Builder<SelfComparableExample> natural = ImmutableSortedSet.naturalOrder();
    assertThat(natural).isNotNull();