hyberbin opened a new issue #8299:
URL: https://github.com/apache/dubbo/issues/8299
### Environment
* Dubbo version: 3.0.1
* Operating System version: win10 /centos 7
* Java version: 1.8
### Steps to reproduce this issue
退出dubbo相关的应用程序时会报这种错，2.7.8版本的时候没有这种问题
### Actual Result
win10下报错
```
[Dubbo-framework-scheduler-thread-1] ERROR o.a.d.c.bootstrap.DubboBootstrap
- [DUBBO] Refresh instance and metadata error, dubbo version: 3.0.1, current
host: 192.168.xxxx
java.lang.IllegalStateException: instance must be started before calling
this method
at
org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.createPersistent(CuratorZookeeperClient.java:130)
at
org.apache.dubbo.remoting.zookeeper.support.AbstractZookeeperClient.create(AbstractZookeeperClient.java:183)
at
org.apache.dubbo.metadata.store.zookeeper.ZookeeperMetadataReport.publishAppMetadata(ZookeeperMetadataReport.java:145)
at
org.apache.dubbo.registry.client.metadata.store.RemoteMetadataServiceImpl.lambda$publishMetadata$0(RemoteMetadataServiceImpl.java:72)
at java.util.concurrent.ConcurrentHashMap.forEach(Unknown Source)
at
org.apache.dubbo.registry.client.metadata.store.RemoteMetadataServiceImpl.publishMetadata(RemoteMetadataServiceImpl.java:59)
at
org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils.refreshMetadataAndInstance(ServiceInstanceMetadataUtils.java:262)
at
org.apache.dubbo.config.bootstrap.DubboBootstrap.lambda$registerServiceInstance$10(DubboBootstrap.java:1386)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.runAndReset$$$capture(Unknown Source)
at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown
Source)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: instance must be started before
calling this method
at
org.apache.curator.shaded.com.google.common.base.Preconditions.checkState(Preconditions.java:444)
at
org.apache.curator.framework.imps.CuratorFrameworkImpl.create(CuratorFrameworkImpl.java:416)
at
org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.createPersistent(CuratorZookeeperClient.java:122)
... 15 common frames omitted
```
centos报错
```
[DUBBO] Refresh instance and metadata error, dubbo version: 3.0.1, current
host: 192.168.xxxxjava.util.ConcurrentModificationException: null
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
at java.util.HashMap$EntryIterator.next(HashMap.java:1479)
at java.util.HashMap$EntryIterator.next(HashMap.java:1477)
at
com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.write(MapTypeAdapterFactory.java:206)
at
com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.write(MapTypeAdapterFactory.java:145)
at
com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:69)
at
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:127)
at
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:245)
at com.google.gson.Gson.toJson(Gson.java:704)
```
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