Description
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Which Component eg. Nacos Discovery, Sentinel
Describe the bug A clear and concise description of what the bug is. 应用关闭时报错，报错日志如下
2026-02-05 18:32:36.182 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.client.naming : Shutdown naming grpc client proxy for uuid->801b6ebc-3cdc-4902-a027-405de8b04db8 2026-02-05 18:32:36.182 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.client.naming : Shutdown grpc redo service executor java.util.concurrent.ScheduledThreadPoolExecutor@7699bf76[Running, pool size = 1, active threads = 0, queued tasks = 1, completed tasks = 119] 2026-02-05 18:32:36.182 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.common.remote.client : Shutdown rpc client, set status to shutdown 2026-02-05 18:32:36.182 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.common.remote.client : Shutdown client event executor java.util.concurrent.ScheduledThreadPoolExecutor@24049fed[Running, pool size = 2, active threads = 2, queued tasks = 0, completed tasks = 0] 2026-02-05 18:32:36.182 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.common.remote.client : Close current connection 1770287195645_192.168.134.1_8996 2026-02-05 18:32:36.185 [system-admin,,,] [licationShutdownHook] INFO 7444 --- c.a.n.c.remote.client.grpc.GrpcClient : Shutdown grpc executor java.util.concurrent.ThreadPoolExecutor@536f0b6a[Running, pool size = 6, active threads = 0, queued tasks = 0, completed tasks = 154] 2026-02-05 18:32:36.185 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.client.naming : shutdown and remove naming rpc client for uuid ->801b6ebc-3cdc-4902-a027-405de8b04db8 2026-02-05 18:32:36.185 [system-admin,,,] [licationShutdownHook] ERROR 7444 --- c.a.c.n.r.NacosGracefulShutdownDelegate : Error occurred while performing Nacos client graceful shutdown
java.lang.NullPointerException: Cannot read field "sharePublisher" because "com.alibaba.nacos.common.notify.NotifyCenter.INSTANCE" is null at com.alibaba.nacos.common.notify.NotifyCenter.deregisterSubscriber(NotifyCenter.java:242) at com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcClientProxy.shutdown(NamingGrpcClientProxy.java:537) at com.alibaba.nacos.client.naming.remote.NamingClientProxyDelegate.shutdown(NamingClientProxyDelegate.java:212) at com.alibaba.nacos.client.naming.NacosNamingService.shutDown(NacosNamingService.java:637) at com.alibaba.cloud.nacos.NacosServiceManager.nacosServiceShutDown(NacosServiceManager.java:117) at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.close(NacosServiceRegistry.java:120) at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:311) at com.alibaba.cloud.nacos.registry.NacosGracefulShutdownDelegate.doGracefulShutdown(NacosGracefulShutdownDelegate.java:69) at com.alibaba.cloud.nacos.registry.NacosGracefulShutdownDelegate.onApplicationEvent(NacosGracefulShutdownDelegate.java:64) at com.alibaba.cloud.nacos.registry.NacosGracefulShutdownDelegate.onApplicationEvent(NacosGracefulShutdownDelegate.java:34) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:185) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:178) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:156) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:454) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:387) at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1166) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.doClose(ServletWebServerApplicationContext.java:179) at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1129) at org.springframework.boot.SpringApplicationShutdownHook.closeAndWait(SpringApplicationShutdownHook.java:147) at java.base/java.lang.Iterable.forEach(Iterable.java:75) at org.springframework.boot.SpringApplicationShutdownHook.run(SpringApplicationShutdownHook.java:116) at java.base/java.lang.Thread.run(Thread.java:1583)
2026-02-05 18:32:36.207 [system-admin,,,] [licationShutdownHook] INFO 7444 --- o.s.b.w.e.tomcat.GracefulShutdown : Commencing graceful shutdown. Waiting for active requests to complete 2026-02-05 18:32:36.219 [system-admin,,,] [ tomcat-shutdown] INFO 7444 --- o.s.b.w.e.tomcat.GracefulShutdown : Graceful shutdown complete 2026-02-05 18:32:36.228 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.client.naming : com.alibaba.nacos.client.naming.cache.ServiceInfoHolder do shutdown begin 2026-02-05 18:32:36.228 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.client.naming : com.alibaba.nacos.client.naming.backups.FailoverReactor do shutdown begin 2026-02-05 18:32:36.228 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.client.naming : com.alibaba.nacos.client.naming.backups.FailoverReactor do shutdown stop 2026-02-05 18:32:36.228 [system-admin,,,] [licationShutdownHook] INFO 7444 --- com.alibaba.nacos.client.naming : com.alibaba.nacos.client.naming.cache.ServiceInfoHolder do shutdown stop
Simplest demo The URL of the simplest demo to reproduce the problem.
To Reproduce Steps to reproduce the behavior:
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- See error
Expected behavior A clear and concise description of what you expected to happen.
Screenshots If applicable, add screenshots to help explain your problem.
Additional context Add any other context about the problem here. e.g. MacOS 、Java8 、 Version 0.2.1.RELEASE java21 spring-boot 3.5.10 spring-cloud.version 2025.0.0 spring-cloud-alibaba 2025.0.0.0 nacos server 3.1.1