Learn how we are co-evolving the Java language, JVM, and common coding practices to improve how fields, arrays, and objects are initialized, which provides stronger guarantees about their contents. These guarantees help eliminate bugs and provide new opportunities for run time optimizations; the Valhalla project at OpenJDK uses such optimizations to deliver previously-unattainable performance improvements. This session covers the Flexible Constructor Bodies preview feature of Java 24, and describes additional language enhancements planned for the future. Presented by Dan Smith - Senior Developer (Java Platform Group - Oracle) at JavaOne 2025 (CA, March 2025). All JavaOne 2025 talks ➤ https://www.youtube.com/playlist?list=PLX8CzqL3ArzVV1xRJkRbcM2tOgVwytJAi ➤ https://inside.java/tag/valhalla ➤ https://dev.java Tags: #Java #JavaOne #openjdk SES1655