zrlw commented on issue #9079:
URL: https://github.com/apache/dubbo/issues/9079#issuecomment-950985548
我在windows机器上的eclipse验证了一下，方法如下：
1. dubbo-samples-version的pom里的dubbo.version改为当前dubbo 3.0分支的3.0.5-SNAPSHOT
2.
从dubbo-samples-basic里copy一个EmbeddedZooKeeper到dubbo-samples-version，修改一下VersionProvider，在启动context前面加上启动zk的代码：
```
new EmbeddedZooKeeper(2181, false).start();
// wait for embedded zookeeper start completely.
Thread.sleep(1000);
```
3. 依次启动VersionProvider，VersionProvider2
4. 然后对dubbo-samples-version执行 run as junit test测试
对比结果如下：
VersionService1IT和VersionService2IT添加了下面的代码，测试就ok:
```
@AfterClass
public static void after() {
DubboBootstrap.reset();
}
```
不添加上述代码，就持续抛异常：
```
main ERROR listener.ServiceInstancesChangedListener: [DUBBO] Failed to load
service metadata, meta type is local, dubbo version: 3.0.5-SNAPSHOT, current
host: x.x.x.x
java.lang.IllegalStateException: DubboProtocol is destroyed
```
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