The Android 3.0 platform introduces new widgets we can use when developing Java applications for it. The following video clips present some of them. You can find the source code as well as the slides that explain these new widgets available for free personal usage 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.