I have recently completed to develop the Routed Events topic in my Silverlight course. The course community version is available for free personal usage at www.abelski.org. The professional version is available at www.abelski.com.

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.