JavaOne 2026 Session

Summary

Just-in-time (JIT) compilation within the JVM is essential to Java's performance and plays a central role in ongoing OpenJDK projects such as Valhalla, Leyden, and Panama. JIT compilation is constantly evolving to support the evolution of the Java language, its main application areas, deployment models, and underlying hardware.

This talk provides an overview of recent performance improvements delivered by the JVM's JIT compilers, both as part of and in addition to OpenJDK projects, and highlights some of the most significant ongoing developments in this area.