For the records, I've worked a bit on JBWS-3607. There's basically nothing to be changed on the current modules shipped in the AS, see the brief explanation at https://issues.jboss.org/browse/JBWS-3607?focusedCommentId=12773037&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12773037 and the more in details documentation additions at https://docs.jboss.org/author/display/JBWS/JBoss+Modules#JBossModules-SpringbasedincontainerBuscreation (now also linked at https://docs.jboss.org/author/display/JBWS/Apache+CXF+integration#ApacheCXFintegration-Clientside )
The use of a jboss-deployment-structure.xml here is required because there's no way to import META-INF and META-INF/cxf paths using the MANIFEST.MF Dependencies entry.