Those three capabilities are: Value objects that would enhance the Java object model with class instances that have only final instance fields and lack object identity.

Valhalla is nothing short of a Java language overhaul, promising to correct longstanding performance issues. Here’s a first look at what’s coming, starting with the new value classes and ...

However, an ideal solution would be to restrict the inheritance to a few specific classes. That's exactly where the sealed class comes into the picture. What is a sealed class? Sealed classes, ...