@Test
  public void testExcludedNullablePropertyImplementation() throws NoSuchMethodException {
    Method method =
        AutoValue_AutoValueJava8Test_NullablePropertiesNotCopied.class.getDeclaredMethod(
            "nullableString");
    assertThat(method.getAnnotatedReturnType().getAnnotations())
        .asList()
        .doesNotContain(nullable());
  }
Returns a set containing this test's {@link Nullable @Nullable} annotation, plus possibly
another {@code @Nullable} that is present on the parameter of {@link Object#equals}.
value/src/it/functional/src/test/java/com/google/auto/value/AutoValueJava8Test.java