What UI Library(widgets) are you using in your Spring MVC or Spring Web Flow Project?

I am working on a number of projects with Spring MVC and Spring Web Flow and we started to use Dojo(dijit) widgets for the UI Library. I would like to hear from other projects if anyone knows of anything better or what are you using??

My screens looks like the one below.. the layouts are easy but I need hightlighting, tooltips and more...

Screen Shot 2012-10-26 at 8.50.45 PM.jpg