Sorry it was a type, the createRecipe.ingredients should be inside EL #{}. Now the problem solved. Thanks! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4056635#4056635 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4056635