class MenuServiceFallbackFactory implements FallbackFactory<MenuService> {
    @Override
    public MenuService create(Throwable throwable) {<FILL_FUNCTION_BODY>}
}

        return roleIds -> {
            log.error("调用findByRoleCodes异常：{}", roleIds, throwable);
            return CollectionUtil.newArrayList();
        };
    
<no_super_class>