Oozie newbie question: V 3.2 on AWS

[Gautam Singaraju]

I might be overlooking something very minor.
But, I just installed RC 1 for Oozie version 3.2 and ran the example
program; it worked great. I wrote another and placed the jar file in the
lib folder. However, the jar file is not being picked up. Instead a default
MR seems to be running. Any suggestions?
Thanks!
---
Gautam