What if you try:
entityManager.find(Language.class, "en ");
(en with 6 spaces)
Just a wild guess...
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972672#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...