**注解中指定分组和在yaml中配置分组都无效**,导致指定了分组的无法访问

demo下载地址：https://wws.lanzoui.com/iE2BEsrb3nc

**dubbo3.0.1可以正常，升级到3.0.2无法访问，报下面的错。**

![image](https://user-images.githubusercontent.com/1773414/129695093-5b72d7da-d93b-49bb-981c-4234ec2b866c.png)


![image](https://user-images.githubusercontent.com/1773414/129683664-6c524e09-2422-4540-9894-28a4e8ab469e.png)



生产端：
![image](https://user-images.githubusercontent.com/1773414/129694805-4786164b-9c11-4c3e-bb9c-23d87b12d775.png)


消费端
![image](https://user-images.githubusercontent.com/1773414/129694877-052bb465-f5fe-44f4-a3a3-7c4265c1fcc7.png)


nacos控制台：
![image](https://user-images.githubusercontent.com/1773414/129680657-edacb8af-7825-45cf-996a-5cd60fcc4e56.png)



throws NullPointerException, IllegalArgumentException {
        execute(namingService, service -> {
            listener.getServiceNames().forEach(serviceName -> {
                try {
                    service.subscribe(serviceName, e -> { 
                        if (e instanceof NamingEvent) {
                            NamingEvent event = (NamingEvent) e;
                            handleEvent(event, listener);
                        }
                    });
                } catch (NacosException e) {
                    logger.error("add nacos service instances changed listener fail ", e);
                }
            });
        });
    }
    @Override
    public URL getUrl() {
        return registryURL;
    }
    private void handleEvent(NamingEvent event, ServiceInstancesChangedListener listener) {
        String serviceName = event.getServiceName();
        List<ServiceInstance> serviceInstances = event.getInstances()
                .stream()
                .map(NacosNamingServiceUtils::toServiceInstance)
                .collect(Collectors.toList());
        listener.onEvent(new ServiceInstancesChangedEvent(serviceName, serviceInstances));
    }
}