The Play Framework @ YouTube
As the non-blocking I/O pattern is gaining popularity, the Java framework that supports in simple mechanism would be nice rather than struggling on thread pools.
This tutorial video covers simple todo-list type of application, which is often seen as tutorials. Though there’re some Java related redundant notations (compared with the script-language ones like AngularJS), its concept is simple. Considering the static-type checking and detailed error messaging, it would be a good option especially for large applications. Also, it seems the Play has built-in testing-framework for application/integration tests along with stubbing/mocking features. Nice.