New Relic Heroku Java Installation Fails

New Relic Heroku Java Installation Fails

I just followed the steps at
https://devcenter.heroku.com/articles/newrelic#java-configuration
from step
Add the New Relic agent as a Maven dependency
up until step
Add the New Relic agent as a Scala+SBT/Play 2 dependency
to install New Relic add on for my web service (Jetty JAX-RS REST).
I customized the newrelic.yml (same folder as pom.xml) with my own app
license_key and app name. However, when logged onto my Heroku app's
newrelic page, I just see a bunch of configuration steps. After clicking
on "Connect to my application", it just stalls. Needless to say, it's been
over a couple of hours with my webservice taking traffic.
I have a feeling new relic isn't even running. I updated the newrelic.yml
to have DEBUG logging, but there were no logs from new relic at startup.
Does newrelic.jar expect the newrelic.yml at the root with pom.xml?
Thanks,
Luke