Alex, you haven't explained how we can migrate list safely, then. If lots and lots of legacy code cannot accept new-style lists, then trying to integrate with the older code is going to be a very frustrating exercise.
Which brings us back to my original point: Modularization is very cool, and we really need it, but without some serious wrapping/view/translation tricks, modularization is not going to allow us to fix bad core API. Some work on the fringe might be possible if sun is okay with losing backwards compatibility in very rare circumstances. On Feb 26, 1:48 am, Alex Buckley <alex.buck...@sun.com> wrote: > On Feb 25, 8:54 am, Reinier Zwitserloot <reini...@gmail.com> wrote: > > > Okay, so, now, you're saying that the default for just about every > > library out there is going to be java[7,8), whereas before you said > > that updating list is no problem, because most modules will say they > > want the list from java[7,*]. > > Unmodularized code - which claims no module membership and gives no > explicit dependencies - implicitly depends on JDK 6. Assuming no > breaking changes in JDK 7, such code can be bound when running on a 7 > VM to JDK 7.*. 7.* is also known as known as [7,8). > > Modularized code - which gives explicit dependencies - can be split > into code which a) uses or b) reuses "core" APIs like List. I said "A > module using or reusing List should ask for >=7 or 7.* respectively". > In fact, it's still pretty naughty to rely on >=7 even if you simply > refer to List, since methods might be removed or made less accessible > (binary incompatible change), but I can imagine ways the risk might be > mitigated by the provider, e.g. JDK 8. > > > You're not making any sense. > > What we're mainly discussing is migration compatibility - how an > unversioned library uses or reuses versioned libraries. Back in JDK > 1.5, the most subtle part of generics was migration compatibility - > how a non-generic client uses or reuses generic types. You are keeping > me honest by posing your questions, keep them coming :-) > > Alex --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to javaposse@googlegroups.com To unsubscribe from this group, send email to javaposse+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/javaposse?hl=en -~----------~----~----~----~------~----~------~--~---
