Simple Java AJAX Message Listener that I would classify as a template rather than a framework. Used for simple messaging between the browser and the server. All the files, including source code, are included and ready to be deployed on a J2EE App Server.
iText Programming Tutorials. Example code and detail explanation on how to generate Adobe PDF document with iText API. Example of AcroForm, bookmark, anchor, insert images, generate PDF with Java App, JSP or Servlet, create PDF table and etc.