ldcsaa opened a new issue, #12778: URL: https://github.com/apache/dubbo/issues/12778
<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy --> - [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate. ### Environment * Dubbo version: 3.2.4 * Operating System version: Win10 * Java version: JDK17 ### Steps to reproduce this issue 1. start provider 2. start consumer 3. consumer 启动时会调用provider，加载Metadata 4. 进入自定义filter 5. 自定义filter调用 RpcContext.getServiceContext().isConsumerSide() 6. 报告 NPE 异常 ``` 2023-07-24 00:01:32.568 ERROR [Dubbo-framework-metadata-retry-thread-1] ?#(L:) -> [DUBBO] Failed to get app metadata for revision b384072965c05583421a94c95d869418 for type local from instance 192.168.59.1:6002, dubbo version: 3.2.4, current host: 192.168.59.1, error code: 1-39. This may be caused by , go to https://dubbo.apache.org/faq/1/39 to find instructions. org.apache.dubbo.rpc.RpcException: Failed to invoke remote method: getMetadataInfo, provider: dubbo://192.168.59.1:6002/org.apache.dubbo.metadata.MetadataService?connections=1&corethreads=2&dubbo=2.0.2&group=hp-demo-infra-service&port=6002&prefer.serialization=fastjson2&protocol=dubbo&release=3.2.4&retries=0&serialization=fastjson2&side=provider&threadpool=cached&threads=100&timeout=5000&version=1.0.0, cause: org.apache.dubbo.remoting.RemotingException: java.lang.NullPointerException: Cannot invoke "org.apache.dubbo.common.URL.getSide(String)" because the return value of "org.apache.dubbo.rpc.RpcServiceContext.getUrl()" i s null java.lang.NullPointerException: Cannot invoke "org.apache.dubbo.common.URL.getSide(String)" because the return value of "org.apache.dubbo.rpc.RpcServiceContext.getUrl()" is null at org.apache.dubbo.rpc.RpcServiceContext.isConsumerSide(RpcServiceContext.java:146) at com.github.hpsocket.soa.framework.web.dubbo.filter.DubboMdcFilter.invoke(DubboMdcFilter.java:32) at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CopyOfFilterChainNode.invoke(FilterChainBuilder.java:334) at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CallbackRegistrationInvoker.invoke(FilterChainBuilder.java:196) at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:156) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:110) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:200) at org.apache.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:53) at org.apache.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:62) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at org.apache.dubbo.common.threadlocal.InternalRunnable.run(InternalRunnable.java:41) at java.base/java.lang.Thread.run(Thread.java:833) at org.apache.dubbo.rpc.protocol.AbstractInvoker.waitForResultIfSync(AbstractInvoker.java:296) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.rpc.protocol.AbstractInvoker.invoke(AbstractInvoker.java:190) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.rpc.proxy.InvocationUtil.invoke(InvocationUtil.java:57) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:75) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.metadata.MetadataServiceDubboProxy1.getMetadataInfo(MetadataServiceDubboProxy1.java) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.registry.client.metadata.MetadataUtils.getRemoteMetadata(MetadataUtils.java:173) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.registry.client.AbstractServiceDiscovery.lambda$getRemoteMetadata$2(AbstractServiceDiscovery.java:227) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.metrics.event.MetricsEventBus.post(MetricsEventBus.java:88) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.registry.client.AbstractServiceDiscovery.getRemoteMetadata(AbstractServiceDiscovery.java:226) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.lambda$doOnEvent$2(ServiceInstancesChangedListener.java:165) ~[dubbo-3.2.4.jar:3.2.4] at java.util.Optional.orElseGet(Optional.java:364) [?:?] at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.doOnEvent(ServiceInstancesChangedListener.java:165) [dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener.onEvent(ServiceInstancesChangedListener.java:119) [dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener$AddressRefreshRetryTask.run(ServiceInstancesChangedListener.java:496) [dubbo-3.2.4.jar:3.2.4] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?] at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) [?:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?] at java.lang.Thread.run(Thread.java:833) [?:?] Caused by: java.util.concurrent.ExecutionException: org.apache.dubbo.remoting.RemotingException: java.lang.NullPointerException: Cannot invoke "org.apache.dubbo.common.URL.getSide(String)" because the return value of "org.apache.dubbo.rpc.RpcServiceContext.getUrl()" is null java.lang.NullPointerException: Cannot invoke "org.apache.dubbo.common.URL.getSide(String)" because the return value of "org.apache.dubbo.rpc.RpcServiceContext.getUrl()" is null at org.apache.dubbo.rpc.RpcServiceContext.isConsumerSide(RpcServiceContext.java:146) at com.github.hpsocket.soa.framework.web.dubbo.filter.DubboMdcFilter.invoke(DubboMdcFilter.java:32) at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CopyOfFilterChainNode.invoke(FilterChainBuilder.java:334) at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CallbackRegistrationInvoker.invoke(FilterChainBuilder.java:196) at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:156) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:110) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:200) at org.apache.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:53) at org.apache.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:62) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at org.apache.dubbo.common.threadlocal.InternalRunnable.run(InternalRunnable.java:41) at java.base/java.lang.Thread.run(Thread.java:833) at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396) ~[?:?] at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2096) ~[?:?] at org.apache.dubbo.rpc.AsyncRpcResult.get(AsyncRpcResult.java:218) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.rpc.protocol.AbstractInvoker.waitForResultIfSync(AbstractInvoker.java:287) ~[dubbo-3.2.4.jar:3.2.4] ... 19 more Caused by: org.apache.dubbo.remoting.RemotingException: java.lang.NullPointerException: Cannot invoke "org.apache.dubbo.common.URL.getSide(String)" because the return value of "org.apache.dubbo.rpc.RpcServiceContext.getUrl()" is null java.lang.NullPointerException: Cannot invoke "org.apache.dubbo.common.URL.getSide(String)" because the return value of "org.apache.dubbo.rpc.RpcServiceContext.getUrl()" is null at org.apache.dubbo.rpc.RpcServiceContext.isConsumerSide(RpcServiceContext.java:146) at com.github.hpsocket.soa.framework.web.dubbo.filter.DubboMdcFilter.invoke(DubboMdcFilter.java:32) at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CopyOfFilterChainNode.invoke(FilterChainBuilder.java:334) at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CallbackRegistrationInvoker.invoke(FilterChainBuilder.java:196) at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:156) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:110) at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:200) at org.apache.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:53) at org.apache.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:62) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at org.apache.dubbo.common.threadlocal.InternalRunnable.run(InternalRunnable.java:41) at java.base/java.lang.Thread.run(Thread.java:833) at org.apache.dubbo.remoting.exchange.support.DefaultFuture.doReceived(DefaultFuture.java:249) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.remoting.exchange.support.DefaultFuture.received(DefaultFuture.java:200) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.remoting.exchange.support.DefaultFuture.received(DefaultFuture.java:188) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleResponse(HeaderExchangeHandler.java:65) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:206) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:53) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:62) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.common.threadpool.ThreadlessExecutor$RunnableWrapper.run(ThreadlessExecutor.java:152) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.common.threadpool.ThreadlessExecutor.waitAndDrain(ThreadlessExecutor.java:77) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.rpc.AsyncRpcResult.get(AsyncRpcResult.java:205) ~[dubbo-3.2.4.jar:3.2.4] at org.apache.dubbo.rpc.protocol.AbstractInvoker.waitForResultIfSync(AbstractInvoker.java:287) ~[dubbo-3.2.4.jar:3.2.4] ... 19 more ``` -- This is an automated message from the Apache Git Service. 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