Thank you for your help @TonioF, I’ve got it working now. I used the maven-dependency-plugin with the maven-jar-plugin; I chose to have a light executable jar with all the dependencies in a lib/ directory. This post shows a relevent excerpt from my pom.xml file. I only kept the two lines referencing my new operators in my OperatorSpi file. The complete files can be found in the project on gitlab.