assertThat(GenericsUtil.getActualElementClassOfSet(method.getGenericReturnType(), map), is(sameClass(String.class)));
    }

    /**
     * @throws Exception
     */
    public void testGetActualKeyClassOfMap() throws Exception {
        final Map<TypeVariable<?>, Type> map = GenericsUtil.getTypeVariableMap(Hoge.class);
        final Method method = Hoge.class.getMethod("map");