Java 17, the latest long-term support (LTS) release, has arrived with a plethora of exciting new features and enhancements. In this blog post, we’ll take an in-depth look at all the noteworthy additions to the Java ecosystem in this groundbreaking release. 1. Sealed Classes Sealed classes provide a new way to restrict the inheritance hierarchy, allowing developers to define a limited set of…

JDK 17 – Switch Case Performance

Switch statements in Java have evolved over time. Switch statements supported primitive types at the beginning, then came along String,  now JDK17 stable release is out and we have pattern matching which allows us to pass different object types to the switch statement. We can now have switch statements like this: (example taken from Oracle JavaSE 17 docs) record Point(int x, int y) { } enum…

Pattern Matching for Switch in Java (JDK 17)

If all you have is a hammer, everything looks like a nail. This sentence summarizes pretty much how I felt about the idiomatic polymorphism approach to most problems in Java until recently. Polymorphism is just a tool, and as for any tool, it excels at some tasks and performs poorly at others. So what are the tasks where polymorphism does a good job? I would say it is a good tool when you have a…