How can you write simple and performant equals() methods for your Java classes: the full tutorial.

Usually you do not write your equals() and hashCode() methods yourself. You delegate that to your IDE and forget about it. This JEP Café deep dives into the different solutions offered by Eclipse and IntelliJ, as well as Guava and Apache Commons Lang 3. It compares these solutions and checks the performance they offer on various real-life use cases. It also compares them with the Pattern Matching solution, available from Java 17 and Java 21.