public static Optional<Map<?, ?>> findCachedServices(final Class<?> spiClass, final Collection<?> types) {
        return Optional.ofNullable(cache.get()).map(optional -> optional.get(new Key(spiClass, types)));
    }
@Test
    void assertNotFindCachedServices() {
        assertFalse(OrderedServicesCache.findCachedServices(OrderedSPIFixture.class, Collections.singleton(new OrderedInterfaceFixtureImpl())).isPresent());
    }