yangyichao-mango commented on pull request #3078:
URL: 
https://github.com/apache/incubator-dolphinscheduler/pull/3078#issuecomment-651103351


   Hi,
   You can check this same error issue [1], and which branch of you error.
   In my opinion, if this error is actually happened in program, we should fix 
it in front-end but not back-end Jackson serde function, because it should 
throw exception when deserialize from an empty string enum json string.
   
   你可以看下 [1] 中的issue,也是同样的问题。你的分支是哪个分支呢?
   
个人理解,如果这个错误确实存在,我理解我们最好应该在前端向后端传参时就避免这个问题,如果后端在序列化上去处理这个问题的话,可能会导致吞掉一些其他枚举类型在序列化时本应该抛出来的错误。
   
   [1] https://github.com/apache/incubator-dolphinscheduler/issues/3028


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