Github user MikeThomsen commented on the issue:
https://github.com/apache/nifi/pull/2420
It's whack-a-mole. To see many/all of them at once do this from the source
root:
`mvn clean install -Pcontrib-check :nifi-gcp-processors`
(I didn't look closely. I'm assuming `nifi-gcp-processors` was the maven
module that was failing. It needs to be the failing maven module's maven name +
`:` at the start to tell Maven to only build that one module w/ the full
contrib-check profile)
Then you just keep changing until you make stylecheck happy.
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