Using log4j with JBoss 7.1

jboss7.x, log4j

Solution

There will soon be a way that will just work for you, but currently you have to exclude the log4j dependency from your deployment. You will also have to manually invoke the PropertyConfigurator.configure() to load the properties file.

The following file (jboss-deployment-structure.xml) needs to contain the following:

<jboss-deployment-structure>
    <deployment>
        <!-- Exclusions allow you to prevent the server from automatically adding some dependencies -->
        <exclusions>
            <module name="org.apache.log4j" />
        </exclusions>
    </deployment>
</jboss-deployment-structure>

Then adding including your own version of log4j in the `WEB-INF/lib` directory should work as you expect it to.

Problem

How can I use log4j with JBoss 7.1? I have a log4j-1.2.16.jar in my WebContent/WEB-INF/lib folder. When I output the result of `Logger.getRootLogger().getClass().toString()` I get `class org.jboss.logmanager.log4j.BridgeLogger` which is wrong. If I add `Dependencies: org.apache.commons.logging` to my MANIFEST.MF file I get the same result. This results into the problem that my log4j.properties file (which I created unter WEB-INF/classes) is ignored.

Original source