[slf4j-user] jcl104-over-slf4j on the web's classpath causes redirection of tomcat's internal logging

Ceki Gulcu listid at qos.ch
Tue Sep 23 15:47:45 CEST 2008

Hello Zoltan,

I would not have expected Tomcat's logs to be intercepted by slf4j. Which 
version of Tomcat is this?

Szel, Zoltan (IT) wrote:
> Hi everyone,
> i have a web application which uses jcl as it's dependency(e.g spring). 
> When i deploy my application on tomcat i notice, that tomcat's internal 
> logging ends up in my config file. Is there a way to completely separate 
> the internal logging from my applications logging? I know this can be 
> filtered out very easily, but in that case i will still get logging 
> output until my backend is configured via a servlet. I have googled a 
> lot and haven't found any related issue, so i am wondering what i am 
> doing wrong.
> Here is my classpath configuration:
> Tomcat's classpath:
>     commons-logging-api.jar
>     commons-logging.jar
>     log4j.jar
> Web apps classpath;
>     slf4j-api.jar
>     jcl104-over-slf4j.jar
>     logback jars
> I am using slf4j 1.4.3
> Any help appreciated.
> Thank you in advance!
> Regards
> Zoltan Szel

Ceki Gülcü
Logback: The reliable, generic, fast and flexible logging framework for Java.

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