class ImmutableThing implements Thing {

    @Override
    public Thing setFeatureProperties(final String featureId, final FeatureProperties properties) {
        if (null == features || features.isNull()) {
            return setFeature(ThingsModelFactory.newFeature(featureId, properties));
        }
        return setFeatures(features.setProperties(featureId, properties));
    }

    private  ImmutableThing(@Nullable final ThingId thingId,
            @Nullable final AccessControlList acl,
            @Nullable final PolicyId policyId,
            @Nullable final ThingDefinition definition,
            @Nullable final Attributes attributes,
            @Nullable final Features features,
            @Nullable final ThingLifecycle lifecycle,
            @Nullable final ThingRevision revision,
            @Nullable final Instant modified,
            @Nullable final Instant created,
            @Nullable final Metadata metadata);

}