JavaMelody : monitoring of JavaEE applications
Java EE 7 Samples
Applied domain-driven design blueprints for Java EE
The API and Issue Tracker for the JCP Standard Java Servlet Specification
Writing scalable server applications in the Java programming language has always been difficult. Before the advent of the Java New I/O API (NIO), thread management issues made it impossible for a server to scale to thousands of users. The Grizzly NIO framework has been designed to help developers to take advantage of the Java NIO API.