Hi, Georg You can't put a jar file inside another jar file. One solution is to reference external.jar as a shared lib inside ear's application.xml Your packaging layout would become: | ear | - module_1.jar | - module_2.jar | - lib | - external.jar | and your application.xml would be something like this, assuming all files 'module_X.jar' are ejb modules: | <application xmlns="http://java.sun.com/xml/ns/j2ee" | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee | http://java.sun.com/xml/ns/j2ee/application_5_0.xsd" | version="5.0"> | | <module> | <ejb>module_1.jar</ejb> | </module> | | <module> | <ejb>module_2.jar</ejb> | </module> | | <library-directory>lib</library-directory> | | </application> | | Cheers, View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4188797#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...