Re: [I] INTERNAL exception occurred when sending generic parameter in streaming [dubbo]

Wed, 29 Nov 2023 21:56:05 -0800 


zzps commented on issue #13363:
URL: https://github.com/apache/dubbo/issues/13363#issuecomment-1833153104

   > ## 问题
   > 
   > 
![image](https://private-user-images.githubusercontent.com/50894526/286463499-b29e393e-09e7-4140-848b-6c55e13545c8.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.tlyMbSF9QwYZiR7dydIpY6diWbDKL_aiZ1cOaFM3AGc)
 
![image](https://private-user-images.githubusercontent.com/50894526/286463755-e0af6028-9f9f-45de-a5b0-116fe9d8a5c7.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJp
 
c3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTEiLCJleHAiOjE3MDEzMDM4NzUsIm5iZiI6MTcwMTMwMzU3NSwicGF0aCI6Ii81MDg5NDUyNi8yODY0NjM3NTUtZTBhZjYwMjgtOWY5Zi00NWRlLWE1YjAtMTE2ZmU5ZDhhNWM3LnBuZz9YLUFtei1BbGdvcml0aG09QVdTNC1ITUFDLVNIQTI1NiZYLUFtei1DcmVkZW50aWFsPUFLSUFJV05KWUFYNENTVkVINTNBJTJGMjAyMzExMzAlMkZ1cy1lYXN0LTElMkZzMyUyRmF3czRfcmVxdWVzdCZYLUFtei1EYXRlPTIwMjMxMTMwVDAwMTkzNVomWC1BbXotRXhwaXJlcz0zMDAmWC1BbXotU2lnbmF0dXJlPTM0MGI0OWNmM2RmMDE5ZTg4YmY2NTQyOTZkNTdhNjk0ZGY3N2EwMDk0MmQ0OWVjYThhZGRhZTk0MDM1MmM1MDkmWC1BbXotU2lnbmVkSGVhZGVycz1ob3N0JmFjdG9yX2lkPTAma2V5X2lkPTAmcmVwb19pZD0wIn0.zocT6RgHHJMNP30ppwbgKd06E7nxLbT2gZSJm58m5zc)
 
![image](https://private-user-images.githubusercontent.com/50894526/286464019-57a4953d-461a-472b-96c5-9c86ea93a538.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTEiLCJleHAiOjE3MDEzMDM4NzUsIm5iZiI6MTcwMTMwMzU3NSwicGF0aCI6Ii81MDg5NDUyNi8yODY0NjQwMTkt
 
NTdhNDk1M2QtNDYxYS00NzJiLTk2YzUtOWM4NmVhOTNhNTM4LnBuZz9YLUFtei1BbGdvcml0aG09QVdTNC1ITUFDLVNIQTI1NiZYLUFtei1DcmVkZW50aWFsPUFLSUFJV05KWUFYNENTVkVINTNBJTJGMjAyMzExMzAlMkZ1cy1lYXN0LTElMkZzMyUyRmF3czRfcmVxdWVzdCZYLUFtei1EYXRlPTIwMjMxMTMwVDAwMTkzNVomWC1BbXotRXhwaXJlcz0zMDAmWC1BbXotU2lnbmF0dXJlPTUzYjQ5NGUyOTllMjFjNTc2MTY3OWExZGI2NGM5Y2Y5YjgyMWY3MzE2N2M0NmVlYzhhN2ViYjUxODY1NzhjMzcmWC1BbXotU2lnbmVkSGVhZGVycz1ob3N0JmFjdG9yX2lkPTAma2V5X2lkPTAmcmVwb19pZD0wIn0.1W2sTzaz3OEAhDIamJ3KhwPTNBDWjemuWVik9s_3Gbs)
 `ParameterizedTypeImpl`和`Class` 并没有继承关系,强转报错了
   > ## 改动+验证
   > ### 单元测试
   > 
   > 
![image](https://private-user-images.githubusercontent.com/50894526/286529563-6176e558-8758-40e6-801c-bbb1429d44aa.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.by13T8sNnbjPie0XYTOZ0NIIxCu3Zp3VbblSGsOCEfM)
 看这的逻辑似乎是想获取`StreamObserver<X>`里的X的类型,加个判断,如果X也带泛型,获取X本身的类型
   > ### 集成测试
   > 
   > 改动前 
![image](https://private-user-images.githubusercontent.com/50894526/286541614-3c12b9f0-79a2-4114-aa13-e070b6ad6701.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.xcXBDl8zzWpHMbRDCT7NHYM50sKyLWo1pr63ZWrRYDk)
 改动后 
![image](https://private-user-images.githubusercontent.com/50894526/286555670-fdc0f5d1-614c-4fff-9b89-9b2baa7c6f31.png?jwt=eyJhbGciOiJIUzI1NiIsI
 
nR5cCI6IkpXVCJ9.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.vW4vsa1ipOX3bDXCVhtIwCmr7mk4PB9dd0557qtMZcQ)
   有心了
   


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