}

    @Test
    public void test_user_carLicense() {
        final User user = new User();
        assertNull(user.getCarLicense());

        user.setCarLicense("ABC123");
        assertEquals("ABC123", user.getCarLicense());
    }

    @Test
    public void test_user_city() {
        final User user = new User();
        assertNull(user.getCity());

                        .forEach(v -> modifyDeleteEntry(modifyList, attrInitials, v)));
        final String attrCarLicense = fessConfig.getLdapAttrCarLicense();
        OptionalUtil.ofNullable(user.getCarLicense())
                .filter(StringUtil::isNotBlank)
                .ifPresent(s -> modifyReplaceEntry(modifyList, attrCarLicense, s))
                .orElse(() -> getAttributeValueList(result, attrCarLicense).stream()