Github user yanghua commented on the issue:
https://github.com/apache/flink/pull/5954
@tillrohrmann That's all right. I know you are very busy. Just a little
question, I have reviewed PR(#6202). I saw it used `Exception`, and there is a
suggestion from Stephan in May 7 :
```
I would use Throwable in the signatures. It may always be that some Error
is the cause (class not found, etc.)
```
So I replaced the `Exception ` to `Throwable` in this PR, do you think it
can be consider? If not, I would close this PR.
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