After releasing Vaadin 8 and 8.1, the certification was updated to the version 8 as well. If you are considering taking the certification, this review will come in handy.
Java enables you to manipulate integers on a bit level, that means operating on specific bits, which represent an integer number. In some cases, it can be really handy.
Java’s own mechanism for copying objects is deeply flawed. What are the alternatives? What are the pitfalls if you decide to use Java cloning anyway?
Java 9 brings a new improved string, which in most cases, will reduce String memory consumption to half.
@Deprecated annotation, introduced in Java 5, received several enhancements in Java 9, which makes easier to document the deprecation of API.