Property bound to an attribute must be of a type that XB knows how to (un)marshal from/to a simple value, e.g. a primitive type (or a wrapper) or String. @XmlAttribute(name = "search") | public void setSearch(SearchInfo search) Is none of that. An adapter should be provided that will perform (un)marshalling from/to simple string values. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4242630#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...