Hi, I'm creating a select query using entity manager createQuery and execute it with getSingleResult() which throws a NoResultException. However, it should return a result. The query that is executed (which I get from the MySQL query log) returns exactly what I would expect it to return but somehow this result cannot be turned into a result by the entity manager. Any hints how to debug this? This is JBoss AS 4.2.1 with MySQL 4.1. Thanks, Georges View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4090548#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...