}
  }

  private static class WildcardSubtypingTests extends SubtypeTester {
    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public Iterable<?> noBounds(List<?> list) {
      return isSubtype(list);
    }

    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public Iterable<List<?>> listOfListOfWildcard(List<List<?>> listOfList) {

    }
  }

  private static class WildcardSubtypingTests extends SubtypeTester {
    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public Iterable<?> noBounds(List<?> list) {
      return isSubtype(list);
    }

    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public Iterable<List<?>> listOfListOfWildcard(List<List<?>> listOfList) {

    TypeVariable<?> noBound = withBounds(noBoundJvmType);
    TypeVariable<?> objectBound = withBounds(objectBoundJvmType, Object.class);
    TypeVariable<?> upperBound = withBounds(upperBoundJvmType, Number.class, CharSequence.class);

    assertEqualTypeVariable(noBoundJvmType, noBound);
    assertEqualTypeVariable(noBoundJvmType, withBounds(noBoundJvmType, Object.class));