Hello, I'm attemtping to achieve isolated classloading for individual war based applications (without much success) in a JBoss 4.0.4GA environment. I understand that these issues have changed since at least the 3.x days as well as perhaps again since the 4.0.2 daysfrom what I have found in the wiki at http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration. Anyway, I am hoping to have entirely self sufficient war applications that do not use anything such as the MyFaces and log4j libs from the parent classloaders. From the wiki, I have tried the following. Here is what I have in my: jbossweb-tomcat55.sar/META-INF/jboss-service.xml: false false <attribute "FilteredPackages">org.apache.commons.logging In each war I have added a WEB-INF/jboss-web.xml with the following content: <jboss-web> <class-loading java2ClassLoadingCompliance="false"> <loader-repository> dot.com:loader=unique-archive-name <loader-repository-config>java2ParentDelegation=false</loader-repository-config> </loader-repository> </class-loading> </jboss-web> However, this is not providing isolation for me (as adding MyFaces and/or log4j jars of different versions to my WEB-INF/lib causes conflicts symptomatic of non-isolated class loading). Am I missing something unique in 4.0.4 or otherwise missing something? How can this desired behavior be achieved? TIA! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3965939#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...