Github user mattyb149 commented on the issue:
https://github.com/apache/nifi/pull/2310
@joewitt There are presumably a handful of classes that the client needs
that are inexplicably associated with the server module. I will try to pare the
dependencies down to the minimum number. Also will add the reference in
nifi-nar-bundles.
Also, initial research indicates that there is no client security in Druid
at the time of this PR, so if there is nothing to do for Kerberos on the client
side, this PR (with updates from the previous comments and any other reviews)
should be good to go
---