Hallo, I've got a simple web service with a stateless session bean as endpoint. I use jboss 4.2.2.GA and the current jaxws 3.0.1. The wsdl file of my service is generated automatically and accessing the methods by a jaxws-client works fine, but... I would like to have a simple get-method in my ws: | | public Object get(Long param); | | The generated wsdl file maps the return value to :anyType. If the implementation of this method returns a default Java Object like a String, there are no problems in marshal or unmarshal, but if the object is an ArrayList or even an own complex type, the following error occurs on the server side: class ArrayList|MyOwnClass nor any of its super class is known to this context. How can I put the classes into the JAXBContext at runtime? I tried the @XmlSeeAlso annotation without success. Creating my own JAXBContext in the stateless session bean method, adding the arraylist and marshalling causes another exception: @XMLRootElement is missing in ArrayList ... Thanks a lot for help! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4153629#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...