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From Stephen Connolly <stephen.alan.conno...@gmail.com>
Subject Re: Maven 4.0.0
Date Sat, 04 Nov 2017 12:52:18 GMT
On Sat 4 Nov 2017 at 12:49, Michael Osipov <michaelo@apache.org> wrote:

> Am 2017-11-04 um 13:20 schrieb Stephen Connolly:
> > The past two days, Hervé, Robert and I have been discussing our next
> steps.
> >
> > I think we have a semi-consensus which I want to bring back to the list:
> >
> > We keep 3.5.x as a stable branch with critical bug fixes only
> >
> > We switch master to 4.0.0 and start to burn down a release scope.
> >
> > 4.0.0 will not change the pom modelVersion
> >
> > The 4.0.0 scope should probably be:
> >
> > Required:
> > * drop Java 7, switch codebase to Java 8 idioms (while maintaining binary
> > api compatibility for plugins)
>
> Who is going to do this? I haven't even seen any Java 7 improvements
> (NIO 2 and others) in core since 3.3. I doubt that core will we be
> rewritten with Java 8 idioms.
> Consider that we still have plugins running Maven 2.2.x which need more
> attention first.


We are going to ask the wider community to contribute PRs towards that
goal, each PR limited to ~20 Lines of diff.

We will need infrastructure to assure binary compatibility (like clirr used
to do before it died) before we can start that effort.

Aim is to find people willing to dive in and get them familiar with the
code base by making many small low/no risk changes


>
> > * specify the classloader behaviour and fix impl to align with spec (may
> > need a plugin flag to allow plugins to opt in to spec behaviour)
> > * specify the extension spec
> > * allow limited mutation of the runtime model (reducing transitive
> > dependencies for consumers within the reactor, only for plugin goals that
> > declare intent) use case: shade plugin
> > * better CI integration hooks
> > * nice error message for newer pom modelVersion
>
> This looks quite reasonable to me.
>
> Michael
>
>
>
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