I've just started using play for the last two weeks, but so far i really don't understand the critics on java vs scala or the documentation. True, so far i've o

I've just started using play for the last two weeks, but so far i really don't understand the critics on java vs scala or the documentation. True, so far i've only dealt with json. / db / file upload & download , but even that covers quite a vast area, and it was pretty obvious that every time play had both a simple and documented way of doing those , even in java.