It doesn't help. As and addendum to first post: objects larger than 4kB get truncated to 4kB when persisting. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4111996#4111996 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4111996