How to run simulations via gatling maven plugin

$ mvn gatling:execute -DsimulationsFolder=/src/test/resources/simulations -Dgatling.simulation=simulations.tooeezzy.service.region.RegionSimulation
$ mvn gatling:execute -DsimulationsFolder=/src/test/resources/simulations -Dgatling.simulationClass=simulations.tooeezzy.service.region.RegionSimulation

I’ve tried above commands(depends on versions) with gatling archetype project… but get

Caused by: java.lang.ClassNotFoundException: simulations.tooeezzy.service.region.RegionSimulation

How can I specify directory for plugin to find simulations in? Thanks!

simulationClass is a full class name (like in java: package + . + simple class name)
=> -Dgatling.simulationClass=tooeezzy.service.region.RegionSimulation (supposing tooeezzy.service.region is indeed the package name and RegionSimulation the simple class name).