I've been looking into the https://jira.jboss.org/jira/browse/JBAS-4193 To make it work, the following should be uncommented for the following two deployers <bean name="EARStructureDeployer" class="org.jboss.deployment.EARStructure"> | <property name="comparatorClassName">org.jboss.system.deployers.LegacyDeploymentContextComparator</property> | <!-- uncomment to disable xml validation property name="useValidation">false</property --> | </bean> | | <!-- application.xml parsing deployer --> | <bean name="AppParsingDeployer" class="org.jboss.deployment.AppParsingDeployer"> | <!-- uncomment to disable xml validation property name="useValidation">false</property --> | <!-- in case xml validation is disabled, it's also better to turn off schema validation property name="useSchemaValidation">false</property --> | </bean> Since the application.xml is parsed twice during deployment. For now I left it commented. There is a test in the testsuite for this issue but it has been commented out and I also left it commented out for now. Having to modify different properties in different services to enable/disable a feature like this is not nice. It would be better to have something like a system property for this. What do you think? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4177106#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...