Object result = data.getDataMap().get("strings");
        assertEquals(stringList, result); // Non-entity collections are registered as-is
    }

    @Test
    public void test_register_nonEntitySet() {
        RenderData data = new RenderData();
        Set<Integer> intSet = new HashSet<>(Arrays.asList(1, 2, 3));

        RenderDataUtil.register(data, "numbers", intSet);