From: <glassfish_at_javadesktop.org>
Date: Tue, 10 Apr 2007 11:36:30 PDT

You are using an old build - this NPE has been already fixed.
You have several alternative options:
1. Grab the latest build - everything will work;
2. In your code substitute AUTO for TABLE:
@GeneratedValue(strategy=GenerationType.TABLE)
[Message sent by forum member 'ailitche' (ailitche)]

http://forums.java.net/jive/thread.jspa?messageID=211723