"mrokka123" wrote : I'm also having the same problem. I'm using jboss4.2.0+jbossWS2.0.1+jdk1.5 | everything is fine,WSDL is ok & client is also calling the service but instead of returning the subclass reference | it always returns base class object. | I also have tried using @XmlSeeAlso but same problem. | Any Suggestion to solve my problem. You have to provide package-info.class file(s) to your application. Take a look to: http://jira.jboss.org/jira/browse/JBWS-1795 Richard View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091088#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...