I have recently completed to develop the master pages topic in my ASP.NET course. You can find the community version of this course available for free personal and academic usage at www.abelski.com. More information about the professional version can be found at www.xperato.com. The following are few samples for the video clips I prepared for explaining this topic.

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.