In nomine Mithras et Cybele
This project is custom Nifi monitor. It differs from the original one in way, it doesn't sends file to inactive chanel while processor is starting up.
You need build it with Java 8.
Processor tested with Nifi 1.14.0.
mvn package
cp nifi-MonitorActivity-nar/target/*.nar $NIFI_HOME/lib/