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https://issues.apache.org/jira/browse/JCR-4796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17552688#comment-17552688
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Julian Reschke commented on JCR-4796:
-------------------------------------

As Konrad said, using slf4j is a deliberate decision, and is done in many other 
projects as well. It's unfortunate that you have a problem with a class 
conflict, and it would be good to understand what exactly goes wrong here.

I find out a bit funny that, in another ticket, you just asked for adding an 
(optional) runtime dependendy to make things easier for you to configure, and 
here you ask to remove a required dependency.

> Remove slf4j from Jackrabbit libraries
> --------------------------------------
>
>                 Key: JCR-4796
>                 URL: https://issues.apache.org/jira/browse/JCR-4796
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>            Reporter: Graham Leggett
>            Priority: Major
>
> Life is too short to deal with exceptions like this one:
> java.lang.LinkageError: loader constraint violation: when resolving method 
> 'org.slf4j.ILoggerFactory 
> org.slf4j.impl.StaticLoggerBinder.getLoggerFactory()' the class loader 
> org.apache.catalina.loader.ParallelWebappClassLoader @4bd217c of the current 
> class, org/slf4j/LoggerFactory, and the class loader java.net.URLClassLoader 
> @7907ec20 for the method's defining class, org/slf4j/impl/StaticLoggerBinder, 
> have different Class objects for the type org/slf4j/ILoggerFactory used in 
> the signature (org.slf4j.LoggerFactory is in unnamed module of loader 
> org.apache.catalina.loader.ParallelWebappClassLoader @4bd217c, parent loader 
> java.net.URLClassLoader @7907ec20; org.slf4j.impl.StaticLoggerBinder is in 
> unnamed module of loader java.net.URLClassLoader @7907ec20, parent loader 
> 'app')
> Remove slf4j and replace with the java default behaviour.



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