Weather the Storm: Java’s Value Classes Unleashed

Imagine swapping heavyweight Java objects for sleek, immutable Lego bricks—that’s exactly what Project Valhalla’s value classes bring to the table. In this beginner-friendly talk, Remi Forax and Clément de Tast show how value classes, the biggest shift since Java 8, slash boxing overhead, cut memory allocations, and open the door to brand-new JVM optimizations.

Using real-world weather data as a playground, you’ll dive into what value classes are, why they outperform regular (identity) classes, and how they slot right into features like records, generics, and collections. By the end, you’ll have migration strategies in hand to start supercharging your existing codebase.

Watch on YouTube