I not think that would be a benefit, because removing the class loader call
will also work with older versions of checkstyle.
Also, of the plugin is just a wrapper, why even bother to detect if the
checkstyle.xml and checkstyle dependency will work together?

Or am I missing something?

On Mon, 23 Dec 2019, 09:32 Romain Manni-Bucau, <rmannibu...@gmail.com>
wrote:

> What about loading checkstyle from a dependency resolver and use a custom
> classloader with an integration per version (a bit like surefire). It
> enables to use any version and even detect an user override in plugin deps.
>
> Le lun. 23 déc. 2019 à 09:27, Benjamin Marwell <bmarw...@gmail.com> a
> écrit :
>
> > Hi Enrico,
> >
> > that would mean a lot of incompatibilities which I wanted to avoid.
> > If the checkstyle jar is updated first (8.xx), maven users wouldn't be
> able
> > to use a current version for quite a while, because the Maven plugin
> would
> > throw NoSuchMethodExceptions. I wanted to avoid this.
> >
> > On the other hand, if the Maven plugin gets updated and released first,
> > there is more time for users to migrate to a more recent maven plugin.
> > Hence my PR.
> >
> > I really do not see the benefit of updating the checkstyle jar first and
> > this having a period of time where Maven users cannot use a recent
> version
> > of checkstyle at all.
> >
> > Maybe I did express the issue with checkstyle 8.24 in a wrong way. Users
> > can already use it if they rewrite their checkstyle.xml. it's just that
> the
> > maven plugin should not update the default checkstyle version to not
> break
> > any default setups and force users to rewrite their checks.
> >
> >
> >
> >
> > On Mon, 23 Dec 2019, 08:45 Enrico Olivelli, <eolive...@gmail.com> wrote:
> >
> > > Ben,
> > > What about having a release of checkstyle with all of the requested
> > changes
> > > and then update maven plugin and then release it?
> > > Checkstyle maven plugin is just a wrapper over checkstyle library.
> > >
> > > The best way would be that you (or anyone from Checkstyle) create a PR
> > when
> > > you are ready with the new release.
> > >
> > > I will be happy to help you move forward with this change and cut a
> > release
> > >
> > > Cheers
> > > Enrico
> > >
> > > Il lun 23 dic 2019, 07:21 Benjamin Marwell <bmarw...@gmail.com> ha
> > > scritto:
> > >
> > > > Hi all,
> > > >
> > > > The checkstyle team is waiting for my PR:
> > > >
> > > > https://github.com/apache/maven-checkstyle-plugin/pull/18
> > > >
> > > > The problem is, that they want to remove a method. If they do this
> too
> > > > early, maven users will not be able to update the checkstyle version
> > > > anymore.
> > > >
> > > > Also, the maven Checkstyle plugin cannot ship a Checkstyle version
> > beyond
> > > > 8.23 because of breaking changes. There is also an issue for this.
> > > >
> > > > This really needs some attention by someone with more responsibility.
> > > >
> > > > Please keep in mind that there is already a jira issue about the 8.24
> > > > incompability. I commented that they should have made it a major
> > version,
> > > > and maybe the checkstyle plugin will have to jump to a new major
> > release
> > > at
> > > > some point?
> > > >
> > > > Thanks for looking into this.
> > > >
> > > > Ben
> > > >
> > >
> >
>

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