I have been using drupal, but I am constantly hitting its limitations. the drupal CCK (and associated modules) is a cool module in Drupal which allow you to specify new "content types" and add fields to them such as Images, text, check-boxes. Drupal then generates pages to add/edit and display these content types on the web. Obviously the benefit of this, is that the developer can specify a content type and leave all the forms/validation, database back-end/SQL, user permissions, and web display output to drupal.
I am guessing that lots of CMS systems support user definable content types, which are then rendered using form processing, editing and templates/blocks for display - however the list of Java CMS on wikipedia and java-source.net; http://java-source.net/open-source/content-managment-systems
but there are many more than I could hope to meaningfully review, so I am hoping someone could suggest any RAD tools for java CMS, and prototyping custom "content types"
Thanks,
Tom
ps some of the Java CMS systems that I am looking into are; onehippo.com/en/ondemand/hippo-service liferay.net/web/guest/home alfresco.com