frameworks for j2ee app build/deploy

A fair number of Java developers at work have been getting into AppFuse. AppFuse is supposed to simplify building and deploying J2EE applications by providing build scripts and preconfigured OSS frameworks (Struts, Spring, Hibernate, etc.). Their hope is that AppFuse will make it easier for junior developers (and possibly some senior developers) to create and manage J2EE applications in spite of all the XML deployment descriptor muck.

Today, I stumbled upon the Java Application Generator or JAG for short. JAG looks like it takes this concept even a step further by taking your database model and your object model (defined in XMI using a tool like Poseidon)in order to generate everything you need. It looks like JAG is a little more rigid in terms of what frameworks you can use in certain tiers, but the idea of having design phase artifacts as inputs to automated app generation just sounds very cool to me.

As you can tell, I know very little about either of these frameworks as many of you who are reading this are shouting, "That's not what these frameworks really do!" I hope I can find time to look at both of these to see if they would be helpful for new J2EE apps. Anyone out there have any strong opinions on either of these?