I found a solution to this same problem today. For some unfathomable reason (to me at least) you need the propOrder property on the @XmlType annotation. The culprit code from the Jboss src in class org.jboss.ws.metadata.umdm.FaultMetaData: | String[] propertyNames = xmlType.propOrder(); | int propertyCount = propertyNames.length; | propertyTypes = new Class[propertyCount]; | faultBeanProperties = new WrappedParameter[propertyCount]; | serviceExceptionGetters = new Method[propertyCount]; | | for (int i = 0; i < propertyCount; i++) | { | String propertyName = propertyNames[\i]; | // extract property metadata from the fault bean | try | { | PropertyDescriptor propertyDescriptor = new PropertyDescriptor(propertyName, faultBean); | ... | } | catch (IntrospectionException ie) | { | throw new WSException("Property '" + propertyName + "' not found in fault bean '" + faultBeanName + "'", ie); | } | ... | } Someone ought to log a JIRA issue or submit a patch. I'm a little too lazy for that. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4206729#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...