Two framework-wide technology were introduced. i18n - localization. You
can see example on main page (home) with simulated main menu. This
implementation based on sessionLocalResolver so local get pulled/store
in user session (there are others cookie based and browser based one)
JSR303 - validation
standard(http://en.wikipedia.org/wiki/Bean_Validation). Two example on
registration page for first name and last name. 

Next step - find the fucking way to make them work TOGETHER!!!