[GitHub] [incubator-shenyu] siegezhang commented on issue #3394: [BUG] when json body is {},and dubbo method has ParameterType，can not find dubbo method

Mon, 09 May 2022 04:00:59 -0700 


siegezhang commented on issue #3394:
URL: 
https://github.com/apache/incubator-shenyu/issues/3394#issuecomment-1120953320

   > Can you show the dubbo code part?
   
   dubbo method :
   
   
![image](https://user-images.githubusercontent.com/7414806/167395944-2526ce76-813a-41cd-8968-213bf29946c9.png)
   
   
   input ：
   
   
![image](https://user-images.githubusercontent.com/7414806/167396044-b150e2d8-fe37-4e7c-97f6-55f3f30e5e0c.png)
   
   
   dubbo  GenericFilter  filter handle:
   
   
![image](https://user-images.githubusercontent.com/7414806/167396351-d3605424-08ce-4ea2-ae72-fb17f3d18fe6.png)
   
   
   `Method method = 
ReflectUtils.findMethodByMethodSignature(invoker.getInterface(), name, types);`
   
   will throw Exception:
   
   
   
![image](https://user-images.githubusercontent.com/7414806/167396646-a36e94db-418f-4d80-baa3-72479870386d.png)
   
   the root reason is lost the parameterTypes info i mentioned above


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