It's not blackbox in that you can't look inside... it's blackbox in that you can choose to ignore it and be just fine. Springboot takes an opinionated approach

It's not blackbox in that you can't look inside... it's blackbox in that you can choose to ignore it and be just fine. Springboot takes an opinionated approach to a lot of things, but always lets you override it and do whatever you want wherever you want. I suppose that's more of a greybox...