Sorry... my first time :( I'm using Jboss.4.2.3 I have this interface @WebMethod(operationName = "process", action = "http://com.sns.bas.dbenabler.web.jmsws/action/processIn") public DoneMessage process(Hashtable<String, Object> listParameter ) { } @WebMethod(operationName = "dummy", action = "http://com.sns.bas.dbenabler.web.jmsws/action/processIn") public QueryVO dummy(QueryVO arg1) { } I want the hashtable receive any Objects like String, Integer or QueryVO. All is ok when i send String or Integer. But when the client send a QueryVO the JAXBContext does not found the QName("queryVO","","") because it is searching for QName("queryVO","http://com.hds.eihv./DBEnabler","ns3") This is the what the client send: <entry> | <key> | VO | </key> | <value xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://com.hds.eihv./DBEnabler" xsi:type="ns3:queryVO"> | <sql> | select | </sql> | </value> | </entry> There is a way to include a (QName, Class) to JAXBContext ? How can i ride this problem? Thanks in advance Leo View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4212413#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...