In one of our projects we have reached the point where we have to ditch out old Madisson-based platform and move on. Unfortunately, Aurora does not look like a perfect fit, so we are looking at alternatives.
One option is to build a GWT based front end. This would allow us to drop JSP, Dojo and most JavaScript in favor of a Java-based platform.
Has anybody tried anything like this before?
How would I make it work with for example Dynacache?
I would read this redbook. It has an example of how to code the JSPs - http://www.redbooks.ibm.com/redbooks/pdfs/sg247393.pdf.
Also if you're moving to FEP6, you'll also want to use the WebSphere Commerce tag libraries and some of the metatags so that the inline editing and some of the advanced store preview features work correctly.
Finally, I would engage your local IBM technical team since there are other customer who have done this before and you want to learn from their best practices.