From: <glassfish_at_javadesktop.org>
Date: Wed, 07 Jan 2009 20:58:54 PST
GlassFish v3 prelude does not support EAR deployment. That is being added for the upcoming next release. The v3 prelude release focuses on web technologies.
Please see the v3 prelude download page for a complete list of what v3 prelude supports: