Github user mgaido91 commented on the issue:
https://github.com/apache/nifi/pull/2201
@frett27 I tried your fix, but if you add custom properties to the scripted
processor, then it results as invalid with the message:
```
... is not a supported property.
```
Thus a more complete UT might help discovering all the problems and solve
all of them, because this fix at the moment seems not to be enough to make
`InvokeScriptedProcessor` working with `AbstractProcessor`.---
