JEP draft: Prepare to make final mean final

A cursory glance at "setAccessible" usage reveals popular libraries such as serializers like gson and jaxb, class manipulation and generation like cglib, aspectj and even jdk.internal.reflect, testing frameworks and libraries including junit, mockito and other mocking libraries, lombok, groovy, spring, and the list goes on and on.

My bet is that this will be yet another "checked exception" or "module system", where many applications now need to add "--add-opens". If you'll use ANY of many of the more popular frameworks or libraries you'll end up giving this assurance away, which will make library developers not able to rely on it and we're back to square one.

Yeah like the module system. Looks good on paper, is probably hard to deal with. There are still tons of popular libraries that have no module-info. Java does evolve, but the direction it does is so weird. And than the tooling is strange and it’s worse that there are basically two build tools, both with their upsides and downsides but they still feel more complicated than tools for other languages like cargo, go (if you consider that), msbuild (the modern csproj stuff/slnx)