Hmm, using a ServletOutputStream os shouldn't make a difference, should it? One one think that it's the same code called... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4122811#4122811 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4122811