I have recently downloaded the jWebSocket server in order to test the new Web Sockets API, which is an part of HTML 5. The following video clip shows a chat demo running using the jWebSocket server.

Stable Values in Java (JEP 502): Deferred Immutability with JVM Trust
Explore Stable Values – a new Java 25 upcoming feature (JEP 502) enabling lazy initialization with immutable performance and JVM-level optimizations.