Github user trixpan commented on the issue:
https://github.com/apache/nifi/pull/1521
**JPercivall**
For the new dependencies, NOTICE/LICENSE information needs to be added if
applicable. Paho is EPL 1.0 licensed and requires being added to the nar NOTICE
like so[1]. Do the other two new deps have license or notice information to add?
[1]
https://github.com/apache/nifi/blob/f47af1ce8336c9305916f00738976f3505b01b0b/nifi-nar-bundles/nifi-mqtt-bundle/nifi-mqtt-nar/src/main/resources/META-INF/NOTICE#L29
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