Update: I've written a simple JAXB unmarshalling implementation over JBossXB so it is a sort of half-way house solution. JAXB annotations with JBossXB http://www.jboss.com/index.html?module=bb&op=viewtopic&t=101041 The advantages are: 1) We don't have to choose a JAXB implementation which gets forced on the users. 2) We can fix the bugs when there is a problem (my version doesn't have the bug reported above - although it probably has others :-) 3) We can implement new stuff/features like dtd support which is going to be pretty difficult to get into the spec/RI. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4013018#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...