Explore Project Valhalla's revolutionary approach to Java programming in this conference talk that demonstrates how to create data structures that combine the familiar syntax of classes with the performance characteristics of primitive types. Learn about value types and their implementation in Java, understanding how they bridge the gap between object-oriented design and memory efficiency. Discover the technical details behind Valhalla's "codes like a class, behaves like an int" philosophy, examining how this project aims to eliminate the traditional trade-offs between abstraction and performance in Java applications. Gain insights into the future of Java development as the speaker walks through practical examples and use cases where Valhalla's value types can significantly improve both code readability and runtime performance.