ComponentUtil.register(second, componentName);
        String retrieved2 = ComponentUtil.getComponent(componentName);
        assertSame(second, retrieved2);
    }

    @Test
    public void test_multiple_components() {
        String comp1 = "component1";
        String comp2 = "component2";
        Integer comp3 = 123;

        ComponentUtil.register(comp1, "name1");
        ComponentUtil.register(comp2, "name2");