That was exactly was I offered to do: new maven-ext-logback module part
of the source tree but not included in the default distribution [1] .
And the consensus was that having optional modules in the core did not
add enough (or any) value to the users, so we decided not to do it. If
other maven developers changed their opinion since that discussion, I
should be able to contribute this extension to the core in couple of
weeks (rather busy this week and traveling the next).

[1]
http://mail-archives.apache.org/mod_mbox/maven-dev/201505.mbox/%3C1432756538.3324739.279772321.3EEF1C60%40webmail.messagingengine.com%3E

-- 
Regards,
Igor

On Thu, Jan 7, 2016, at 09:01 AM, Arnaud Héritier wrote:
> And couldn't we have some optional extensions in the distribution ?
> Not activated by default but that users can easily activate by moving a
> jar
> ?
> 
> On Thu, Jan 7, 2016 at 2:51 PM, Jason van Zyl <ja...@takari.io> wrote:
> 
> > And I liked this extension and wanted it! I only thought it inappropriate
> > because the deps were not there by default in the core, and that we said
> > we’d discuss it. Even though I think by virtue of the fact you did the work
> > and have consistently done work in the core that you should really be able
> > to make the change. I was just trying to be consistent with what we said
> > we’d do.
> >
> > > On Jan 6, 2016, at 10:26 PM, Igor Fedorenko <i...@ifedorenko.com> wrote:
> > >
> > > It is already possible to implement advanced logging as an extension.
> > > This was what I did when my offer to provide multi-threaded logging
> > > support in the core was turned down on this list few months ago. So at
> > > this point the discussion/decision is purely political.
> > >
> > > --
> > > Regards,
> > > Igor
> > >
> > > On Wed, Jan 6, 2016, at 08:53 PM, Nick Stolwijk wrote:
> > >> This isn't a mail to convince anyone between Log4J2 or Logback.
> > >>
> > >> I have updated my Maven installation with Log4J2, instead of the
> > default,
> > >> which worked fine.
> > >>
> > >> I missed one thing and I hope with different log implementations we
> > still
> > >> could do this "right". Maven has a nice command line parameter to give
> > >> out
> > >> extra logging, the "-X" parameter. With the Log4J2 in place, this
> > logging
> > >> parameter didn't work. I have to change the logging configuration to
> > >> include DEBUG logging. Is there a way to print out the logging, without
> > >> regard to the logging framework, to include the debug information when
> > >> given the "-X" parameter?
> > >>
> > >> I think it is very valuable to get extra logging without touching any
> > >> configuration files.
> > >>
> > >> With regards,
> > >>
> > >> Nick Stolwijk
> > >>
> > >> ~~~ Try to leave this world a little better than you found it and, when
> > >> your turn comes to die, you can die happy in feeling that at any rate
> > you
> > >> have not wasted your time but have done your best ~~~
> > >>
> > >> Lord Baden-Powell
> > >>
> > >> On Thu, Jan 7, 2016 at 1:27 AM, Jason van Zyl <ja...@takari.io> wrote:
> > >>
> > >>> I’ve no issue with the fix to make any implementation to work, just the
> > >>> merging of the log4j2 branch in general.
> > >>>
> > >>>> On Jan 6, 2016, at 7:20 PM, Ralph Goers <ralph.go...@dslextreme.com>
> > >>> wrote:
> > >>>>
> > >>>> Jason,
> > >>>>
> > >>>> I really don’t care which logging framework Maven uses. There isn’t
> > >>> going to be much difference between Logback and Log4j 2 in a batch
> > process
> > >>> like Maven, although asynchronous loggers might speed up larger builds
> > >>> somewhat.
> > >>>>
> > >>>> However, these comparisons are still incorrect. Log4j is using the
> > ASF’s
> > >>> git repository and hasn’t really integrated pull requests from github
> > so
> > >>> you are comparing apples and oranges. If you look at the changes.xml
> > file
> > >>> you will see 250 due-to attributions, some of which include committers
> > but
> > >>> most of which are not. Just in the latest release, 2.5, there were
> > >>> contributions from 13 individuals outside of the ASF and in the 2.4
> > release
> > >>> there were contributions from more than 20. If Logback has only had
> > >>> contributions from 70+ non-committers since they moved to git, then
> > Log4j
> > >>> is easily winning that metric.
> > >>>>
> > >>>> That said, I don’t use Maven for how cool its logging framework is.
> > >>> However, Gary’s original complaint about an unsupported SLF4J binding
> > seems
> > >>> like it should be addressed. Why can’t a user use their own custom
> > SLF4J
> > >>> implementation?
> > >>>>
> > >>>> Ralph
> > >>>>
> > >>>>> On Jan 6, 2016, at 3:49 PM, Jason van Zyl <ja...@takari.io> wrote:
> > >>>>>
> > >>>>>>
> > >>>>>> On Jan 6, 2016, at 5:46 PM, Paul Benedict <pbened...@apache.org
> > >>> <mailto:pbened...@apache.org>> wrote:
> > >>>>>>
> > >>>>>> Jason, I am sorry but to disagree with you. Your statistics are
> > still
> > >>> not
> > >>>>>> telling a full story. I can glance at the commit graphs of these 76
> > >>> logback
> > >>>>>> contributors rather quickly to see really how "diverse" this
> > community
> > >>> is.
> > >>>>>>
> > >>>>>> * 35 (~45%) only ever made 1 contribution
> > >>>>>> * 18 (~25%) have only ever made 2 contributions
> > >>>>>> * 16 (~20%) have between 3-10 contributions.
> > >>>>>>
> > >>>>>
> > >>>>> This is still awesome. I would love to have 35 contributors making
> > one
> > >>> change. It all adds up.
> > >>>>>
> > >>>>>> That leaves only 7 logback contributors (~10%) who actually do
> > >>> something.
> > >>>>>> And of those 7, only 4 committed something in 2015 ... and Cecki is
> > the
> > >>>>>> leader by far. It's clearly a very visible one man show with sparse
> > >>>>>> contributions from others.
> > >>>>>>
> > >>>>>> Based on these numbers, I think Log4J2 has the better community
> > >>> involvement.
> > >>>>>>
> > >>>>>
> > >>>>> Everyone will interpret numbers as they wish but it’s a simple thing
> > >>> even to make one change in an open source project. 99% of people never
> > do
> > >>> so to have that number of people make one or two changes is a
> > significant
> > >>> thing.
> > >>>>>
> > >>>>>> Cheers,
> > >>>>>> Paul
> > >>>>>>
> > >>>>>> On Wed, Jan 6, 2016 at 4:31 PM, Jason van Zyl <ja...@takari.io>
> > wrote:
> > >>>>>>
> > >>>>>>> A contributor on that page is not a comparison of committers vs
> > not.
> > >>>>>>> People who have made pull requests to Maven are listed as
> > >>> contributors.
> > >>>>>>> Just as they would for Log4J2. A measure, albeit one, of the
> > overall
> > >>>>>>> diversity of contribution.
> > >>>>>>>
> > >>>>>>>> On Jan 6, 2016, at 5:27 PM, Paul Benedict <pbened...@apache.org>
> > >>> wrote:
> > >>>>>>>>
> > >>>>>>>> I am writing regarding this statement: "Ceki may do more commits
> > but
> > >>> it’s
> > >>>>>>>> certainly not a one man show. 76 contributors for Logback and 8
> > >>>>>>>> contributors for Log4J2."
> > >>>>>>>>
> > >>>>>>>> The numbers in themselves do not tell a full story. It's in
> > >>> appropriate
> > >>>>>>> to
> > >>>>>>>> conclude that since 76 > 8, therefore logback is a better choice.
> > >>> The 8
> > >>>>>>>> contributors in Log4J2 have been voted in according to Apache
> > bylaws.
> > >>>>>>>> Conversely, there aren't any bylaws for logback; the logback
> > Github
> > >>>>>>> project
> > >>>>>>>> owner can freely grant commit privileges at will ... and
> > evidently,
> > >>> they
> > >>>>>>>> do! So the bar for committer rights is much (much) lower than at
> > >>> Apache.
> > >>>>>>> I
> > >>>>>>>> don't think the above comparison is fair toward log4j2.
> > >>>>>>>>
> > >>>>>>>> Cheers,
> > >>>>>>>> Paul
> > >>>>>>>>
> > >>>>>>>> On Wed, Jan 6, 2016 at 4:09 PM, Jason van Zyl <ja...@takari.io>
> > >>> wrote:
> > >>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>> On Jan 6, 2016, at 12:25 PM, Arnaud Héritier <
> > aherit...@gmail.com>
> > >>>>>>>>> wrote:
> > >>>>>>>>>>
> > >>>>>>>>>> great, more constructive feedback :-)
> > >>>>>>>>>> Thanks Jason
> > >>>>>>>>>>
> > >>>>>>>>>> Both projects are well known and widely used even if log4j v2 is
> > >>>>>>> younger
> > >>>>>>>>>> with less downloads such figures are not really representative
> > >>> with all
> > >>>>>>>>>> caches/repositories managers I think.
> > >>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> I don’t have a single peer that uses Log4j2 and that’s important
> > to
> > >>> me.
> > >>>>>>> I
> > >>>>>>>>> do not believe Log4J2 is well known or widely use. I think 3
> > years
> > >>> of
> > >>>>>>>>> releases is fairly representative in that Logback is getting
> > close
> > >>> to
> > >>>>>>> the
> > >>>>>>>>> Log4J incoming edge count and if you remove all the incoming
> > edges
> > >>> from
> > >>>>>>>>> Apache there are not a lot of users.
> > >>>>>>>>>
> > >>>>>>>>>> About logback vs log4j I have really no real preference
> > technically
> > >>>>>>>>>> speaking (I had both branches working in the past and used them
> > a
> > >>> lot
> > >>>>>>> in
> > >>>>>>>>> my
> > >>>>>>>>>> professional life -
> > >>> http://www.aheritier.net/united-colors-of-maven/).
> > >>>>>>>>>>
> > >>>>>>>>>> In term of community, Log4J is in our apache community and we
> > have
> > >>> few
> > >>>>>>>>>> active committers arround. On Logback side even if I really
> > >>> appreciate
> > >>>>>>>>> Ceki
> > >>>>>>>>>> I'm always afraid about this one-man show project. (and Ceki
> > isn't
> > >>>>>>>>> perfect
> > >>>>>>>>>> too when we see the nightmare of slf4j-api 1.5+
> > incompatibilities
> > >>> we
> > >>>>>>>>> always
> > >>>>>>>>>> have in 2016 !!).
> > >>>>>>>>>
> > >>>>>>>>> Ceki may do more commits but it’s certainly not a one man show.
> > 76
> > >>>>>>>>> contributors for Logback and 8 contributors for Log4J2. It’s
> > stable
> > >>> and
> > >>>>>>>>> mature at this point with 54 releases versus 33 for Log4J2. I
> > don’t
> > >>>>>>> think
> > >>>>>>>>> any person responsible for picking a package for logging would
> > get
> > >>> much
> > >>>>>>>>> support in their organization for Log4J2, as the data would
> > >>> suggest. I
> > >>>>>>>>> think with few contributors and usage it would likely be deemed a
> > >>> less
> > >>>>>>> wise
> > >>>>>>>>> choice than Logback and possibly a risk. There are also lots of
> > >>> Apache
> > >>>>>>>>> projects that use Logback. I think pragmatism is a factor in all
> > the
> > >>>>>>> other
> > >>>>>>>>> projects at Apache who selected Logback. Being at Apache
> > obviously
> > >>>>>>> wasn’t
> > >>>>>>>>> the determining criterion and it shouldn’t be.
> > >>>>>>>>>
> > >>>>>>>>>> I agree that we are just talking about a logging implementation
> > >>> but you
> > >>>>>>>>> saw
> > >>>>>>>>>> what it gave for eclipse/aether ….
> > >>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> I’m not sure what your point is here. No one worked on any of the
> > >>> parts,
> > >>>>>>>>> ever, whether here or at Eclipse. I doubt anyone will work on it
> > >>> when it
> > >>>>>>>>> comes back. So I’m not sure what analogy you’re trying to make.
> > >>>>>>>>>
> > >>>>>>>>>> I'm clearly not enough involved enough in the project to try to
> > >>>>>>> convince
> > >>>>>>>>>> anyone about a choice to do but I can just say that not having a
> > >>>>>>>>> colorized
> > >>>>>>>>>> console in 2016 is .... irritating.
> > >>>>>>>>>>
> > >>>>>>>>>> For the problem reported by Gary I think that applying the fix
> > in
> > >>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>
> > >>>
> > maven-embedder/src/main/resources/META-INF/maven/slf4j-configuration.properties
> > >>>>>>>>>> (
> > >>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>
> > >>>
> > https://github.com/apache/maven/commit/8cddea291c279130d437bcdf3337f16296558530
> > >>>>>>>>>> )
> > >>>>>>>>>> is safe to be back-ported in master. It is just that
> > >>>>>>>>>> org.slf4j.helpers.Log4jLoggerFactorywas for Log4J 1 AFAIU and
> > now
> > >>> that
> > >>>>>>>>>> Log4J2 is release/stabilized there is a new one :
> > >>>>>>>>>> org.apache.logging.slf4j.Log4jLoggerFactory
> > >>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> If I asked Ceki for help I’d get it immediately also. Who isn’t
> > >>> going to
> > >>>>>>>>> help there to get their library bundled with Maven?
> > >>>>>>>>>
> > >>>>>>>>>> For the replacement of the implementation and activate colors I
> > >>> prefer
> > >>>>>>> to
> > >>>>>>>>>> let active committers decide of what they are doing (I imagine
> > >>> that for
> > >>>>>>>>> any
> > >>>>>>>>>> choice they are doing it doesn't avoid you to use another one in
> > >>> your
> > >>>>>>> own
> > >>>>>>>>>> distribution ?
> > >>>>>>>>>>
> > >>>>>>>>>> I would prefer log4j2 but clearly I never merged it because of
> > the
> > >>>>>>> slf4j
> > >>>>>>>>>> conflict that I don't understand (but I didn't spend a lot of
> > time
> > >>> on
> > >>>>>>> it)
> > >>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> To me the most important factor is usage, of course you need some
> > >>>>>>>>> threshold of developers so that people are working on it but even
> > >>> there
> > >>>>>>> I’d
> > >>>>>>>>> say it’s pretty sparse in Log4J2. But with widespread usage comes
> > >>>>>>>>> examination, issue submissions, pull requests and ultimately more
> > >>> people
> > >>>>>>>>> that contribute and that’s clearly the case with Logback. I don’t
> > >>> see
> > >>>>>>> how
> > >>>>>>>>> you can logically refute that and see Log4J2 a better choice
> > >>> because of
> > >>>>>>>>> what organization it’s developed within? Logback has a community
> > it
> > >>> just
> > >>>>>>>>> doesn’t happen to be here, and Ceki's not some random guy. He
> > also
> > >>> has a
> > >>>>>>>>> long track record of open source dedication and contribution.
> > >>>>>>>>>
> > >>>>>>>>>> Cheers
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>> On Wed, Jan 6, 2016 at 5:46 PM, Jason van Zyl <ja...@takari.io>
> > >>> wrote:
> > >>>>>>>>>>
> > >>>>>>>>>>> These are the numbers I arrived at, happy to run them with
> > >>> different
> > >>>>>>>>>>> coordinates but thought these were representative:
> > >>>>>>>>>>>
> > >>>>>>>>>>> gremlin> g.V('vc', 'log4j:log4j').inE.count()
> > >>>>>>>>>>> ==>84570
> > >>>>>>>>>>>
> > >>>>>>>>>>> gremlin> g.V('vc',
> > 'ch.qos.logback:logback-classic').inE.count()
> > >>>>>>>>>>> ==>62389
> > >>>>>>>>>>>
> > >>>>>>>>>>> gremlin> g.V('vc',
> > >>> 'org.apache.logging.log4j:log4j-core').inE.count()
> > >>>>>>>>>>> ==>3134
> > >>>>>>>>>>>
> > >>>>>>>>>>> These are incoming edges across all versions of said
> > coordinate.
> > >>>>>>>>>>>
> > >>>>>>>>>>>> On Jan 6, 2016, at 11:15 AM, Jason van Zyl <ja...@takari.io>
> > >>> wrote:
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> As we said previously when the the question arose again there
> > >>> would
> > >>>>>>> be
> > >>>>>>>>> a
> > >>>>>>>>>>> discussion. You may not remember, but I expect there to be a
> > >>>>>>> discussion.
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> I have built a graph of Maven Central to analyze the rank
> > (count
> > >>> of
> > >>>>>>> all
> > >>>>>>>>>>> incoming edges) for Log4J2 and Logback and it is clear from
> > those
> > >>>>>>>>> numbers
> > >>>>>>>>>>> that everyone has gone from Log4J to Logback. What has
> > happened, I
> > >>>>>>>>> believe
> > >>>>>>>>>>> from the numbers, is that the community followed the founder of
> > >>> the
> > >>>>>>>>> project
> > >>>>>>>>>>> and not the owner project in pretty much the exact same way
> > users
> > >>> went
> > >>>>>>>>> with
> > >>>>>>>>>>> Jenkins and not Hudson. Anyone is happy to take the graph and
> > >>> verify
> > >>>>>>>>> this
> > >>>>>>>>>>> themselves, or generate their own data from the machine that is
> > >>>>>>> housing
> > >>>>>>>>> the
> > >>>>>>>>>>> copy of Maven Central at Google.
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> Additionally Igor has an implementation for logging during
> > >>> concurrent
> > >>>>>>>>>>> builds based on Logback that I would really like to use, and
> > the
> > >>> color
> > >>>>>>>>>>> logging is also easy with Logback. I do not want to use
> > something
> > >>> that
> > >>>>>>>>> the
> > >>>>>>>>>>> community at large has not adopted.
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> Again, anyone is welcome to the code and/or the data if they
> > >>> want to
> > >>>>>>>>>>> verify this themselves.
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> I also am not interested in a debate so if we disagree then
> > just
> > >>>>>>> leave
> > >>>>>>>>>>> the simple implementation in place. I’m not philosophically
> > >>> motivated
> > >>>>>>>>> much
> > >>>>>>>>>>> here in these discussions but I’m vehemently opposed to
> > >>> integrating
> > >>>>>>>>> Log4J2.
> > >>>>>>>>>>>>
> > >>>>>>>>>>>>> On Jan 6, 2016, at 7:55 AM, Arnaud Héritier <
> > >>> aherit...@gmail.com>
> > >>>>>>>>>>> wrote:
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> thanks for this valuable comment Jason :(
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> On Wed, Jan 6, 2016 at 1:46 PM, Jason van Zyl <
> > ja...@takari.io>
> > >>>>>>>>> wrote:
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>>> -1
> > >>>>>>>>>>>>>>
> > >>>>>>>>>>>>>> Do not merge this branch.
> > >>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>> On Jan 6, 2016, at 4:05 AM, Tibor Digana <
> > >>> tibordig...@apache.org>
> > >>>>>>>>>>> wrote:
> > >>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>> Hi Arnaud,
> > >>>>>>>>>>>>>>> Do you plan a Release Version to merge this branch o
> > master in
> > >>>>>>>>> Maven?
> > >>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>> On Tue, Jan 5, 2016 at 7:18 AM, Arnaud Héritier [via
> > Maven] <
> > >>>>>>>>>>>>>>> ml-node+s40175n5857870...@n5.nabble.com> wrote:
> > >>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>> Just because only 2.4 was available when I updated this
> > >>> feature
> > >>>>>>>>>>> branch
> > >>>>>>>>>>>>>> few
> > >>>>>>>>>>>>>>>> months ago.
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>> Le mardi 5 janvier 2016, Gary Gregory <[hidden email]
> > >>>>>>>>>>>>>>>> <http:///user/SendEmail.jtp?type=node&node=5857870&i=0>>
> > a
> > >>>>>>> écrit :
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>> Hi Arnaud,
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>> Thank you for the update.
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>> Why not update the Log4j 2 dep from 2.4 to 2.5?
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>> Gary
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>> On Mon, Jan 4, 2016 at 2:46 PM, Arnaud Héritier <[hidden
> > >>> email]
> > >>>>>>>>>>>>>>>> <http:///user/SendEmail.jtp?type=node&node=5857870&i=1>
> > >>>>>>>>>>>>>>>>> <javascript:;>> wrote:
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>> Hi Gary,
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>> I fixed this in the branch :
> > >>>>>>>>>>>>>>>>>> https://github.com/apache/maven/commits/slf4j-log4j2.4
> > >>>>>>>>>>>>>>>>>> The fix is in
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>
> > >>>
> > maven-embedder/src/main/resources/META-INF/maven/slf4j-configuration.properties
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>> (
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>
> > >>>
> > https://github.com/apache/maven/commit/8cddea291c279130d437bcdf3337f16296558530
> > >>>>>>>>>>>>>>>>>> )
> > >>>>>>>>>>>>>>>>>> It is the update I did after my old blog post :
> > >>>>>>>>>>>>>>>>>> http://www.aheritier.net/united-colors-of-maven/
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>> BR
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>> On Fri, Dec 25, 2015 at 4:09 PM, Gary Gregory <[hidden
> > >>> email]
> > >>>>>>>>>>>>>>>> <http:///user/SendEmail.jtp?type=node&node=5857870&i=2>
> > >>>>>>>>>>>>>>>>> <javascript:;>>
> > >>>>>>>>>>>>>>>>>> wrote:
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> Hi All,
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> Happy Holidays.
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> Can the next version of Maven be rid of this warning:
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> [WARN] The SLF4J binding actually used is not
> > supported by
> > >>>>>>>>> Maven:
> > >>>>>>>>>>>>>>>>>>> org.apache.logging.slf4j.Log4jLoggerFactory
> > >>>>>>>>>>>>>>>>>>> [WARN] Maven supported bindings are:
> > >>>>>>>>>>>>>>>>>>> [WARN] (from
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>
> > >>>
> > jar:file:/E:/Java/apache-maven-3.3.9/bin/../lib/maven-embedder-3.3.9.jar!/META-INF/maven/slf4j-configuration.properties)
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> - ch.qos.logback.classic.LoggerContext
> > >>>>>>>>>>>>>>>>>>> - org.slf4j.helpers.Log4jLoggerFactory
> > >>>>>>>>>>>>>>>>>>> - org.slf4j.impl.SimpleLoggerFactory
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> Is there a step I am missing to use Log4j 2 cleanly? My
> > >>> steps
> > >>>>>>>>> are
> > >>>>>>>>>>>>>>>> here:
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>
> > >>> https://garygregory.wordpress.com/2015/03/23/watch-maven-in-color/
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> --
> > >>>>>>>>>>>>>>>>>>> E-Mail: [hidden email]
> > >>>>>>>>>>>>>>>> <http:///user/SendEmail.jtp?type=node&node=5857870&i=3>
> > >>>>>>>>>>> <javascript:;>
> > >>>>>>>>>>>>>> | [hidden
> > >>>>>>>>>>>>>>>> email] <http://
> > >>> /user/SendEmail.jtp?type=node&node=5857870&i=4>
> > >>>>>>>>>>>>>>>>> <javascript:;>
> > >>>>>>>>>>>>>>>>>>> Java Persistence with Hibernate, Second Edition
> > >>>>>>>>>>>>>>>>>>> <http://www.manning.com/bauer3/>
> > >>>>>>>>>>>>>>>>>>> JUnit in Action, Second Edition <
> > >>>>>>>>> http://www.manning.com/tahchiev/
> > >>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>> Spring Batch in Action <
> > http://www.manning.com/templier/>
> > >>>>>>>>>>>>>>>>>>> Blog: http://garygregory.wordpress.com
> > >>>>>>>>>>>>>>>>>>> Home: http://garygregory.com/
> > >>>>>>>>>>>>>>>>>>> Tweet! http://twitter.com/GaryGregory
> > >>>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>> --
> > >>>>>>>>>>>>>>>>>> -----
> > >>>>>>>>>>>>>>>>>> Arnaud Héritier
> > >>>>>>>>>>>>>>>>>> http://aheritier.net
> > >>>>>>>>>>>>>>>>>> Mail/GTalk: aheritier AT gmail DOT com
> > >>>>>>>>>>>>>>>>>> Twitter/Skype : aheritier
> > >>>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>> --
> > >>>>>>>>>>>>>>>>> E-Mail: [hidden email]
> > >>>>>>>>>>>>>>>> <http:///user/SendEmail.jtp?type=node&node=5857870&i=5>
> > >>>>>>>>>>> <javascript:;>
> > >>>>>>>>>>>>>> | [hidden
> > >>>>>>>>>>>>>>>> email] <http://
> > >>> /user/SendEmail.jtp?type=node&node=5857870&i=6>
> > >>>>>>>>>>>>>>>>> <javascript:;>
> > >>>>>>>>>>>>>>>>> Java Persistence with Hibernate, Second Edition
> > >>>>>>>>>>>>>>>>> <http://www.manning.com/bauer3/>
> > >>>>>>>>>>>>>>>>> JUnit in Action, Second Edition <
> > >>>>>>> http://www.manning.com/tahchiev/
> > >>>>>>>>>>
> > >>>>>>>>>>>>>>>>> Spring Batch in Action <http://www.manning.com/templier/
> > >
> > >>>>>>>>>>>>>>>>> Blog: http://garygregory.wordpress.com
> > >>>>>>>>>>>>>>>>> Home: http://garygregory.com/
> > >>>>>>>>>>>>>>>>> Tweet! http://twitter.com/GaryGregory
> > >>>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>>
> > >>>>>>>>>>>>>>>> --
> > >>>>>>>>>>>>>>>> -----
> > >>>>>>>>>>>>>>>> Arnaud Héritier
> > >>>>>>>>>>>>>>>> http://aheritier.net
> > >>>>>>>>>>>>>>>> Mail/GTalk: aheritier AT gmail DOT com
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> > >>>>>>>>>>>>>> Jason
> > >>>>>>>>>>>>>>
> > >>>>>>>>>>>>>> ----------------------------------------------------------
> > >>>>>>>>>>>>>> Jason van Zyl
> > >>>>>>>>>>>>>> Founder, Takari and Apache Maven
> > >>>>>>>>>>>>>> http://twitter.com/jvanzyl
> > >>>>>>>>>>>>>> http://twitter.com/takari_io
> > >>>>>>>>>>>>>> ---------------------------------------------------------
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> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> --
> > >>>>>>>>>>>>> -----
> > >>>>>>>>>>>>> Arnaud Héritier
> > >>>>>>>>>>>>> http://aheritier.net
> > >>>>>>>>>>>>> Mail/GTalk: aheritier AT gmail DOT com
> > >>>>>>>>>>>>> Twitter/Skype : aheritier
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> Thanks,
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> Jason
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> ----------------------------------------------------------
> > >>>>>>>>>>>> Jason van Zyl
> > >>>>>>>>>>>> Founder, Takari and Apache Maven
> > >>>>>>>>>>>> http://twitter.com/jvanzyl
> > >>>>>>>>>>>> http://twitter.com/takari_io
> > >>>>>>>>>>>> ---------------------------------------------------------
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> {script:nopre:"/Users/jvanzyl/signature/signature.sh"}
> > >>>>>>>>>>>>
> > >>>>>>>>>>>>
> > >>>>>>>>>>>>
> > >>> ---------------------------------------------------------------------
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> > >>>>>>>>>>>> For additional commands, e-mail: dev-h...@maven.apache.org
> > >>>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>>>>>>> Thanks,
> > >>>>>>>>>>>
> > >>>>>>>>>>> Jason
> > >>>>>>>>>>>
> > >>>>>>>>>>> ----------------------------------------------------------
> > >>>>>>>>>>> Jason van Zyl
> > >>>>>>>>>>> Founder, Takari and Apache Maven
> > >>>>>>>>>>> http://twitter.com/jvanzyl
> > >>>>>>>>>>> http://twitter.com/takari_io
> > >>>>>>>>>>> ---------------------------------------------------------
> > >>>>>>>>>>>
> > >>>>>>>>>>> {script:nopre:"/Users/jvanzyl/signature/signature.sh"}
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>> ---------------------------------------------------------------------
> > >>>>>>>>>>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
> > >>>>>>>>>>> For additional commands, e-mail: dev-h...@maven.apache.org
> > >>>>>>>>>>>
> > >>>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>> --
> > >>>>>>>>>> -----
> > >>>>>>>>>> Arnaud Héritier
> > >>>>>>>>>> http://aheritier.net
> > >>>>>>>>>> Mail/GTalk: aheritier AT gmail DOT com
> > >>>>>>>>>> Twitter/Skype : aheritier
> > >>>>>>>>>
> > >>>>>>>>> Thanks,
> > >>>>>>>>>
> > >>>>>>>>> Jason
> > >>>>>>>>>
> > >>>>>>>>> ----------------------------------------------------------
> > >>>>>>>>> Jason van Zyl
> > >>>>>>>>> Founder, Takari and Apache Maven
> > >>>>>>>>> http://twitter.com/jvanzyl
> > >>>>>>>>> http://twitter.com/takari_io
> > >>>>>>>>> ---------------------------------------------------------
> > >>>>>>>>>
> > >>>>>>>>> {script:nopre:"/Users/jvanzyl/signature/signature.sh"}
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>>
> > >>> ---------------------------------------------------------------------
> > >>>>>>>>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
> > >>>>>>>>> For additional commands, e-mail: dev-h...@maven.apache.org
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>
> > >>>>>>> Thanks,
> > >>>>>>>
> > >>>>>>> Jason
> > >>>>>>>
> > >>>>>>> ----------------------------------------------------------
> > >>>>>>> Jason van Zyl
> > >>>>>>> Founder, Takari and Apache Maven
> > >>>>>>> http://twitter.com/jvanzyl
> > >>>>>>> http://twitter.com/takari_io
> > >>>>>>> ---------------------------------------------------------
> > >>>>>>>
> > >>>>>>> {script:nopre:"/Users/jvanzyl/signature/signature.sh"}
> > >>>>>>>
> > >>>>>>>
> > >>>>>>>
> > ---------------------------------------------------------------------
> > >>>>>>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
> > >>>>>>> For additional commands, e-mail: dev-h...@maven.apache.org
> > >>>>>>>
> > >>>>>>>
> > >>>>>
> > >>>>> Thanks,
> > >>>>>
> > >>>>> Jason
> > >>>>>
> > >>>>> ----------------------------------------------------------
> > >>>>> Jason van Zyl
> > >>>>> Founder, Takari and Apache Maven
> > >>>>> http://twitter.com/jvanzyl <http://twitter.com/jvanzyl>
> > >>>>> http://twitter.com/takari_io <http://twitter.com/takari_io>
> > >>>>> ---------------------------------------------------------
> > >>>>>
> > >>>>> {script:nopre:"/Users/jvanzyl/signature/signature.sh"}
> > >>>>>
> > >>>>>
> > >>>>> ---------------------------------------------------------------------
> > >>>>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org <mailto:
> > >>> dev-unsubscr...@maven.apache.org>
> > >>>>> For additional commands, e-mail: dev-h...@maven.apache.org <mailto:
> > >>> dev-h...@maven.apache.org>
> > >>>
> > >>> Thanks,
> > >>>
> > >>> Jason
> > >>>
> > >>> ----------------------------------------------------------
> > >>> Jason van Zyl
> > >>> Founder, Takari and Apache Maven
> > >>> http://twitter.com/jvanzyl
> > >>> http://twitter.com/takari_io
> > >>> ---------------------------------------------------------
> > >>>
> > >>> {script:nopre:"/Users/jvanzyl/signature/signature.sh"}
> > >>>
> > >>>
> > >>> ---------------------------------------------------------------------
> > >>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
> > >>> For additional commands, e-mail: dev-h...@maven.apache.org
> > >>>
> > >>>
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
> > > For additional commands, e-mail: dev-h...@maven.apache.org
> > >
> >
> > Thanks,
> >
> > Jason
> >
> > ----------------------------------------------------------
> > Jason van Zyl
> > Founder, Takari and Apache Maven
> > http://twitter.com/jvanzyl
> > http://twitter.com/takari_io
> > ---------------------------------------------------------
> >
> > {script:nopre:"/Users/jvanzyl/signature/signature.sh"}
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org
> > For additional commands, e-mail: dev-h...@maven.apache.org
> >
> >
> 
> 
> -- 
> -----
> Arnaud Héritier
> http://aheritier.net
> Mail/GTalk: aheritier AT gmail DOT com
> Twitter/Skype : aheritier

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