Dynamic, typesafe queries in JPA 2.0 – A query for persistent Java™ objects is typesafe if a compiler can verify it for syntactic correctness. Version 2.0 of the Java Persistence API (JPA) introduces the Criteria API, which brings the power of typesafe queries to Java applications for the first time and provides a mechanism for constructing queries dynamically at run tim
Build better Web applications with Google Sitebricks – Sitebricks is a lightweight framework that provides versatile tools for rapidly creating Web applications. It extends the Guice philosophy to the Web. Best of all, Sitebricks is still a young framework. You'll want to keep an eye on upcoming features and on the ecosystem developing around Sitebricks
Gears API Blog: Hello HTML5 – If you've wondered why there haven't been many Gears releases or posts on the Gears blog lately, it's because we've shifted our effort towards bringing all of the Gears capabilities into web standards like HTML5
Book of Vaadin – vaadin.com – Book of Vaadin is a comprehensive documentation of Vaadin. It shows how to get started, gives a good overview of the features and tutors you through advanced aspects of the framework.