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 <[email protected]> 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 <[email protected]> wrote:
>> 
>> thanks for this valuable comment Jason :(
>> 
>> On Wed, Jan 6, 2016 at 1:46 PM, Jason van Zyl <[email protected]> wrote:
>> 
>>> -1
>>> 
>>> Do not merge this branch.
>>> 
>>>> On Jan 6, 2016, at 4:05 AM, Tibor Digana <[email protected]> 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] <
>>>> [email protected]> 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
>>>>> Twitter/Skype : aheritier
>>>>> 
>>>>> 
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>>>>> NAML
>>>>> <
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>>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> --
>>>> View this message in context:
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>>>> Sent from the Maven Developers mailing list archive at Nabble.com.
>>> 
>>> Thanks,
>>> 
>>> Jason
>>> 
>>> ----------------------------------------------------------
>>> Jason van Zyl
>>> Founder, Takari and Apache Maven
>>> http://twitter.com/jvanzyl
>>> http://twitter.com/takari_io
>>> ---------------------------------------------------------
>>> 
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>>> 
>>> 
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: [email protected]
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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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> 

Thanks,

Jason

----------------------------------------------------------
Jason van Zyl
Founder, Takari and Apache Maven
http://twitter.com/jvanzyl
http://twitter.com/takari_io
---------------------------------------------------------

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