[VDZ22] "Change is the Only Constant”. Really? by Maurice Naftalin

The philosophers tell us that change is inevitable, but the designers of the Java Collections Framework don’t agree: unmodifiable collections and view collections are a major feature of the Framework. But exactly what cannot be modified – which modifications are supported or prohibited – depends on the collection or view and how it was created. How are these different, and why? If you’ve ever wondered about what unmodifiability means, how it’s different from immutability, and why we would want it at all in an object-oriented language, this talk is for you.