Another notable: I disabled the constraint to see if it was actually going to write the correct data and it was just the commit order as I suspected, or if the parent key was really not being saved. Turns out, the parent key (Task Instance) is not being saved or is actively being deleted during the save. (There are Log rows referencing a Task Instance that no longer exists.) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4034346#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...