zrlw opened a new issue #9283:
URL: https://github.com/apache/dubbo/issues/9283
### Environment
* Dubbo version: 3.0
ReferenceCountExchangeClient的replaceWithLazyClient方法没有判断当前是否正在destroy，创建LazyConnectExchangeClient对象时new
ServiceConfigURL调用可能会NPE，原因是url.getPath()调用InstanceAddressURL#getPath方法时，getProtocolServiceKey()方法因为RpcServiceContext.consumerUrl为null而返回null，传入metadataInfo.getServiceInfo方法入参为null导致ConcurrentHashMap.get调用NPE：
```
java.lang.NullPointerException
at
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
at
org.apache.dubbo.metadata.MetadataInfo.getServiceInfo(MetadataInfo.java:174)
at
org.apache.dubbo.registry.client.InstanceAddressURL.getPath(InstanceAddressURL.java:133)
at
org.apache.dubbo.rpc.protocol.dubbo.LazyConnectExchangeClient.<init>(LazyConnectExchangeClient.java:65)
at
org.apache.dubbo.rpc.protocol.dubbo.ReferenceCountExchangeClient.replaceWithLazyClient(ReferenceCountExchangeClient.java:217)
at
org.apache.dubbo.rpc.protocol.dubbo.ReferenceCountExchangeClient.closeInternal(ReferenceCountExchangeClient.java:187)
at
org.apache.dubbo.rpc.protocol.dubbo.ReferenceCountExchangeClient.close(ReferenceCountExchangeClient.java:164)
at
org.apache.dubbo.rpc.protocol.dubbo.DubboInvoker.destroyInternal(DubboInvoker.java:174)
at
org.apache.dubbo.rpc.protocol.dubbo.DubboInvoker.destroy(DubboInvoker.java:141)
at
org.apache.dubbo.rpc.listener.ListenerInvokerWrapper.destroy(ListenerInvokerWrapper.java:89)
at org.apache.dubbo.rpc.Invoker.destroyAll(Invoker.java:50)
at
org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory.destroyAllInvokers(ServiceDiscoveryRegistryDirectory.java:344)
at
org.apache.dubbo.registry.integration.DynamicDirectory.destroy(DynamicDirectory.java:297)
at
org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker.destroy(AbstractClusterInvoker.java:126)
at
org.apache.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.destroy(MockClusterInvoker.java:80)
at
org.apache.dubbo.registry.client.migration.MigrationInvoker.destroy(MigrationInvoker.java:316)
at
org.apache.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:72)
at org.apache.dubbo.common.bytecode.proxy4.$destroy(proxy4.java)
at
org.apache.dubbo.config.utils.SimpleReferenceCache.destroyReference(SimpleReferenceCache.java:244)
at
org.apache.dubbo.config.utils.SimpleReferenceCache.lambda$5(SimpleReferenceCache.java:234)
at
java.util.concurrent.ConcurrentHashMap.forEach(ConcurrentHashMap.java:1597)
at
org.apache.dubbo.config.utils.SimpleReferenceCache.destroyAll(SimpleReferenceCache.java:232)
at
org.apache.dubbo.config.deploy.DefaultModuleDeployer.unreferServices(DefaultModuleDeployer.java:402)
at
org.apache.dubbo.config.deploy.DefaultModuleDeployer.postDestroy(DefaultModuleDeployer.java:205)
at
org.apache.dubbo.rpc.model.ModuleModel.onDestroy(ModuleModel.java:107)
at org.apache.dubbo.rpc.model.ScopeModel.destroy(ScopeModel.java:108)
at
org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onContextClosedEvent(DubboDeployApplicationListener.java:127)
at
org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:100)
at
org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:1)
at
org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:96)
at
org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:335)
at
org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1059)
at
org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1020)
at
org.apache.dubbo.test.spring.SpringXmlConfigTest.test(SpringXmlConfigTest.java:69)
```
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