Github user bbende commented on the issue:
https://github.com/apache/nifi/pull/2581
Not sure what others do, but I can't remember doing anything in my IDE
(IntelliJ) other than changing the new Java class template to have the Apache
License at the top by default.
I just run `mvn clean install -Pcontrib-check` before submitting a PR. If I
changed code all over the place then I run it from the root, or if I was
working in a single module then I run inside that module.
I think most standard Java styling passes the check-style, almost every
time I have a failure it is from an unused import.
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