How can they coexist when they use the same package names? This is why I want to use a different package name root for 3.x, like org.apache.log4j3 or something like that.
On Mon, Apr 18, 2022, 17:07 Ralph Goers <ralph.go...@dslextreme.com> wrote: > Gary, that really doesn’t say anything. 2.x and 3.x are already designed > to be able to coexist. > > Ralph > > > On Apr 18, 2022, at 10:50 PM, Gary Gregory <garydgreg...@gmail.com> > wrote: > > > > For my 2c, the better internals are not going to motivate the majority of > > users to update to 3.0, features are. It might be different for plugin > > authors, but how many of those are there? My guess is a minuscule > amount. I > > agree that 2.x should live for a long long time, and should be able to > > coexist with 1.x and 3.x. > > > > Gary > > > > Gary > > > > On Mon, Apr 18, 2022, 14:56 Piotr P. Karwasz <piotr.karw...@gmail.com> > > wrote: > > > >> Hi Volcan, > >> > >> On Sun, 17 Apr 2022 at 22:42, Volkan Yazıcı <vol...@yazi.ci> wrote: > >> > >>> 1. I was working on LOG4J2-3082 (support external serializers, e.g., > >>> Jackson, in JTL) and there I needed `@RequiredClass`. Ralph already > >>> implemented this in `master`, I just need to copy it to > `release-2.x`, > >>> after all it is just a `@ConstraintValidator`, right? Right... But it > >>> simply won't work. Because JTL, as `PatternLayout`, uses > >>> `PluginManager` to > >>> load plugins and that doesn't support `@ConstraintValidator` et al.?! > >>> I've > >>> discussed this with Matt and we came to the conclusion that porting > >> the > >>> new > >>> plugin infra from 3.x to 2.x is easier compared to fixing the problem > >> in > >>> 2.x. > >>> > >> > >> Maybe this can be solved in other ways. For example we could have a: > >> 1. `SerializerFactory` with multiple implementations each one in a > separate > >> module, > >> 2. You use the `ServiceLoaderUtil` to find an implementation or you use > the > >> internal one if there are none. > >> > >> I think that the dependency injector is a feature that should stay in > 3.0 > >> to motivate people to move from 2.x. > >> > >> Piotr > >> > >
