Excellent, Thank you for taking time to reply.
You are right in saying that the integration should be same as it would be with any other Java based solution. I was concerned because Play is a little different as it's not based on selrvlet (and breaks the whole EE paradigm) and prohibs one from using Java EE libraries that assume that a Java servlet will respond to requests (or any other stuff like servletFilter, HttpSessionListener). I being new to noth Java and jBPM wasn't sure if that would have any impact in integrating jBPM with Play. (I hope your reply still applies, in light of this information).