[GitHub] [dubbo-spi-extensions] cdfive opened a new issue, #122: NPE encountered when using dubbo-mock-admin

[GitBox <gi...@apache.org>]

cdfive opened a new issue, #122:
URL: https://github.com/apache/dubbo-spi-extensions/issues/122

   ### Environment
   
   * Dubbo version: 3.0.8
   * Dubbo Admin version: 0.4.0
   * dubbo-mock-admin version: 3.0.6-SNAPSHOT
   
   Add depedency `dubbo-mock-admin` in consumer project, using the `AdminMockFilter` provided.
   I found that after mockResult got by `mockService.mock(mockContext)`, 
   if the result is not enable, then`invoker.invoke(invocation)` will throw NPE.
   
   It seems that the `consumerUrl` has been changed in `RpcServiceContext`, 
   the protocolServiceKey is `org.apache.dubbo.mock.api.MockService`,
   and `getServiceInfo(protocolServiceKey)` can't get the serviceInfo.
   
   ### Exception trace:
   
   ```
   [nio-9092-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
   
   java.lang.NullPointerException: null
   	at org.apache.dubbo.registry.client.InstanceAddressURL.getServiceMethodParameter(InstanceAddressURL.java:243) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.registry.client.InstanceAddressURL.getMethodParameter(InstanceAddressURL.java:266) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.common.URL.getMethodParameter(URL.java:834) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker.initLoadBalance(AbstractClusterInvoker.java:425) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:335) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.rpc.cluster.router.RouterSnapshotFilter.invoke(RouterSnapshotFilter.java:46) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CopyOfFilterChainNode.invoke(FilterChainBuilder.java:321) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:99) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CopyOfFilterChainNode.invoke(FilterChainBuilder.java:321) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.rpc.protocol.dubbo.filter.FutureFilter.invoke(FutureFilter.java:51) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CopyOfFilterChainNode.invoke(FilterChainBuilder.java:321) ~[dubbo-3.0.8.jar:3.0.8]
   	at org.apache.dubbo.mock.filter.AdminMockFilter.invoke(AdminMockFilter.java:148) ~[dubbo-mock-admin-3.0.6-SNAPSHOT.jar:3.0.6-SNAPSHOT]
   	...
   ```
   


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