Sealed classes in Java are a new feature that provides a way to restrict the classes that can inherit from a superclass or extend an interface. This new language feature enhances the encapsulation and provides more control to developers over their codebase. In this tutorial, we will explore sealed classes, how to use them to find all subclasses, and how …

We have all likely worked on a project, that has grown quite “mature” over time, who knows we might even have forgotten to keep our dependencies up to date? Mayhap we finally got the green light to move from JDK 8 to 17? This will quite likely entail a lot of library updates, and maybe some interesting changes (cough javax …

This is part 2 of a two part series on Starting Apache Kafka Server, Configuring Kafka Topic, and Creating a Core Java Based Kafka Consumer, as also a Core Java Based Kafka Producer. All this is demonstrated in step-by-step examples. All of this is for Java v8.0, Apache Kafka v3.4 on Windows 10. Part 1 focused on Kafka Consumer and …