I was thinking the exact same thing. My superficial reaction is that they could embed jruby in their java code and use the real active record model. this would let them reuse the validation logic and all that good stuff.
I'm really curious if they explored this possibility, and if so why they rejected it.
I immediately jumped to this conclusion as well. I judge that it may not have occurred to them. If most of their experience was in Java they may not have thought of embedding as a solution.
I'm really curious if they explored this possibility, and if so why they rejected it.