Github user pferrel commented on the issue:
https://github.com/apache/incubator-predictionio-template-java-ecom-recommender/pull/6
Making templates easier for users doing upgrades is extremely important IMO.
Getting them working with 0.12.0 is first priority and I for one appreciate
@shimamoto and @takezoe taking this on. But we need to make this better for the
future. ---
