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From Ryan Hoegg <rho...@isisnetworks.net>
Subject Re: HttpClient needs commons-logging on Solaris with iPlanet 4.1,
Date Mon, 12 May 2003 17:08:03 GMT
I think that somehow on Windows you are having two different 
Classloaders load the Log interface and the Jdk14Logger class.  I think 
adding it to the WAR in WEB-INF/lib is the "right" solution, but since 
Tomcat already knows about the commons-logging classes you may still 
have problems.  Cocoon had to tell users to copy several JARs into 
tomcat's endorsed directory to get past a similar problem iirc.

Hope this helps,

Ryan Hoegg
ISIS Networks

Karr, David wrote:

>My biggest quandary with this problem is figuring out which list I
>should write this on, httpclient, commons, or tomcat.
>I have an application that I originally built with Tomcat 4.1.18 on
>WinXP, using JDK 1.2.2.  It uses HttpClient.  When I compiled it all and
>deployed it, it worked fine, and did not seem to require
>commons-logging, perhaps because Tomcat already uses commons-logging.
>However, when I deployed it to iPlanet 4.1 on Solaris (also using JDK
>1.2.2), I found it was getting the following exception inside the
>HttpConnection constructor:
>java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
>So, I put "commons-logging.jar" into the iPlanet classpath, and then
>this worked fine.  Since I didn't like having a jar file required on one
>platform and not used on another, I decided to try to put
>commons-logging into the Tomcat deployment, just so I could verify I was
>using the same jars.  The application compiled fine with
>"commons-logging.jar" in the application, but when I deployed it, I got
>Caused by: org.apache.commons.logging.LogConfigurationException:
>org.apache.commons.logging.LogConfigurationException: Class
>org.apache.commons.logging.impl.Jdk14Logger does not implement Log
>        at
>        at
>        at
>        at
>        at
>Note that I'm using JDK 1.2.2.
>So, I'm at a point where I have to include "commons-logging.jar" when I
>deploy to Solaris/iPlanet, but I CAN'T include it on Windows/Tomcat.
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