focuse8 opened a new issue, #13368: URL: https://github.com/apache/dubbo/issues/13368
<!-- 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: 3.2.7 * Operating System version: xxx * Java version: 1.8 ### Steps to reproduce this issue 1. 设置dubbo版本3.2.7 2. triple协议泛型掉用 genericService.$invoke("methodName", null, new Object[]) Pls. provide [GitHub address] to reproduce this issue. ### Expected Behavior 正常返回 <!-- What do you expect from the above steps？--> ### Actual Behavior 提供者找不到对应方法 原因分析： org.apache.dubbo.rpc.protocol.tri.TripleInvoker#invokeUnary 里面使用org.apache.dubbo.rpc.support.RpcUtils#getParameterTypes获取实际参数类型 public static Class<?>[] getParameterTypes(Invocation invocation) { if ($INVOKE.equals(invocation.getMethodName()) && invocation.getArguments() != null && invocation.getArguments().length > 1 && invocation.getArguments()[1] instanceof String[]) { String[] types = (String[]) invocation.getArguments()[1]; if (types == null) { return new Class<?>[0]; } Class<?>[] parameterTypes = new Class<?>[types.length]; for (int i = 0; i < types.length; i++) { parameterTypes[i] = ReflectUtils.forName(types[i]); } return parameterTypes; } return invocation.getParameterTypes(); } 如果传的是null，则 invocation.getArguments()[1] instanceof String[]不会成立，导致返回的实际参数类型泛型的参数类型 [String, Ljava.lang.String, Ljava.lang.Object] 提供者收到的请求如下图，  -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
