You're very much right, I conflated the two initially, and then separated the two later, should've edited that. From my experience, a lot of the upgrade issues

You're very much right, I conflated the two initially, and then separated the two later, should've edited that. From my experience, a lot of the upgrade issues were around things fiddling with a bunch bytecode like Spring. I'm really glad strong encapsulation is enabled by default now, it highlights dubious stuff- reusing my Powermock example, the lib is trying to mock methods on Object itself...