The nifi-media-processors depend on Tika-Parsers 1.16 as of now. They need to be upgraded to at least Tika-Parsers 1.18 to resolve the licensing problem identified to the Tika team and which they resolved in https://issues.apache.org/jira/browse/TIKA-2535
We aren't susceptible to the licensing problem at this time because when we did the last update for Tika-Parsers this was flagged and excluded though we could be exposing bugs for certain datayptes we'd do mime detection on (maybe). I have a comment about this in our pom.
This Jira is to upgrade, ensure no invalid libs are used, and clean up the comments and move on.