I was working around and solve this problem by
1. get the task
2. query its reminder's Job
3. get remider's duedate
Thanks for looking.
View the original post :
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4248599#...
Reply to the post :
http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...