I deploy the same jar file (kevin.jar) in a war and its containing ear. In the war, I have a test JSP that loads a class from kevin.jar and displays its class loader.

The class is loaded using the war class loader. So, I added the following to jboss-web.xml under the war's WEB-INF

<class-loading java2ClassLoadingCompliance='true'>

Didn't work. So I added this:

<class-loading java2ClassLoadingCompliance='true'>
<loader-repository>
dot.com:loader=unique-archive-name
<loader-repository-config>
java2ParentDelegaton=true
</loader-repository-config>
</loader-repository>
</class-loading>

Didn't work either. Class continues to be loaded from war's class loader.

Deleted JAR from WEB-INF/lib and class is now loaded from ear.