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From "Caldarale, Charles R" <Chuck.Caldar...@unisys.com>
Subject RE: Weblogic library and Tomcat
Date Fri, 13 Feb 2009 03:12:33 GMT
> From: Christopher Schultz [mailto:chris@christopherschultz.net]
> Subject: Re: Weblogic library and Tomcat
>
> log4j:ERROR LogMananger.repositorySelector was null likely
> due to error in class reloading, using NOPLoggerRepository.
>
> I'm a little unclear as to whether that log4j error message is coming
> from Tomcat trying to shut down log4j or what. log4j.jar is only
> available in my webapp's WEB-INF/lib directory.

It's likely from having this system property:
  org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES
set to true (the default).  The behavior controlled by this property was implemented to help
clear up memory leaks due to sloppy reference handling in numerous libraries.  Look here for
details:
http://tomcat.apache.org/tomcat-6.0-doc/config/systemprops.html#Other
https://issues.apache.org/bugzilla/show_bug.cgi?id=41939

 - Chuck


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