You are on the right track, actually :) You've specified the namespace using JBossXmlSchema annotation. Which is correct. You should still add namespace element to the XmlRootElement annotation, which is a bit confusing having JBossXmlSchema. You don't have to do that XmlElement annotations. Unfortunately, we don't have JAXB tutorial for JBossXB. But you can find one for JAXB on Sun's web-site and use javadoc. For examples you can see tests in XB http://anonsvn.jboss.org/repos/common/jbossxb/trunk/src/test/java/org/jbo... And post issues here. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4238869#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...