I pretty much hope you guys can help me out here. I, via xjc, compiled a .XSD into several classes. Automatically xs:dateTime schema types are translated to XMLGregorianCalendar java type. No problem about that. I then use some of the generated classes as WS parameters for a service I'm designing. No problem about that either. The thing is that when JBoss WS generates the WSDL file from my service, it translates the XMLGregorianDate type to xs:anySimpleType. I checked it out and it seems that it should be the default behavior of JAXB. I'd like to know how can I force the translation of XMLGregorianCalendar to xs:dateTime rather than put an annotation @XMLSchemaType in all the properties that are XMLGregorianCalendar types. Thanks in advance, Antonio Souza. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4134915#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...