From jwagantall suggestion:

That's actually not the issue in this case. 

following the log's instructions, it says itself how to resolve this issue:

https://cwiki.apache.org/confluence/display/MAVEN/OutOfMemoryError

Basically, we need to make sure this job is configured to run the maven step with the params:

-Xmx512m -XX:MaxPermSize=128m

Can you guys please add these as mvn-params in your appc.yaml?

Thanks!

Jess