Github user mattyb149 commented on the issue:
https://github.com/apache/nifi/pull/3015
Unfortunately I believe you need to enumerate all the transitive
dependencies in the L&N. You should have been able to copy that from the Groovy
NOTICE, but it does not have its own dependencies listed in there (assuming
some of the dependencies have NOTICEs), so we have to do it here. Their LICENSE
mentions a couple of dependencies, but I'm not sure it's complete, so you'll
have to verify both our L&N include the appropriate entries.
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