@Test
  public void testNotNullablePrimitiveArrays() {
    NullPointerException e =
        assertThrows(NullPointerException.class, () -> PrimitiveArrays.create(null, new int[0]));
    assertThat(e).hasMessageThat().contains("booleans");
  }
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