https://jira.jboss.org/jira/browse/JBAS-5895 This looks like a problem of EARStructure not explicitly excluding ear's lib directory? I cannot find library-directory element as part of EarMetaData: - http://anonsvn.jboss.org/repos/jbossas/projects/metadata/trunk/src/main/j... So this might be a reason why it wasn't excluded - you put the element in spec file. But on the other hand I see this in EARStructure: | // Add the ear lib contents to the classpath | String libDir = appMetaData.getLibraryDirectory() == null ? "lib" : appMetaData.getLibraryDirectory(); | Hence if emtpy library-directory is parsed as null, then we would always get lib as default. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4175789#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...