Brian Goetz (Java Language Architect) 2025 JVM Language Summit session on evolving the Java language.- Growing a Language (Guy L. Steele Jr.) ➤ https://www....

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Dive deep into the Java Virtual Machine and discover how it masterfully balances static analysis with dynamic execution. John Rose explores what makes the JVM both powerful and efficient, from theoretical computer science to real-world optimization …

Dive deep into the Java Virtual Machine and discover how it masterfully balances static analysis with dynamic execution. John Rose explores what makes the JVM both powerful and efficient, from theoretical computer science to real-world optimization techniques.

The JVM Language Summit (JVMLS) is a unique event that brings together Java and JVM architects and OpenJDK developers to discuss the evolution and future dir...

YouTube video by Java

YouTube video by Java

This session explores code reflection in Project Babylon, demonstrating how Java code can be symbolically modeled as Java code models. It covers the underlying approach, highlights key advantages, and discusses potential limitations.

This session explores code reflection in Project Babylon, demonstrating how Java code can be symbolically modeled as Java code models. It covers the underlying approach, highlights key advantages, and discusses potential limitations.

Throughout the project, the Vector API balanced providing a cross-platform API with staying close to the metal, performance-wise. While the project succeeded in that goal, the Vector API had to give up some important functionality when it didn't fit…

Throughout the project, the Vector API balanced providing a cross-platform API with staying close to the metal, performance-wise. While the project succeeded in that goal, the Vector API had to give up some important functionality when it didn't fit the design. As a result, the API became unsuitable for implementing an important class of vectorized algorithms that depend on access to particular hardware functionality. With recent progress in Project Panama (on the Foreign Function & Memory API and jextract), new opportunities have emerged to bring Java even closer to hardware. The talk covers how the Vector API evolved (from machine code snippets to JVM intrinsics), and then focus on a novel approach to providing access to individual machine code instructions from Java code in a performant manner. Such a "hardware intrinsics" API complements the Vector API by providing access to low-level platform-specific primitives. It opens up new opportunities for the Java Platform and enables simplifications in the Vector API, JDK, and JVM implementations.

YouTube video by Java

YouTube video by Java

Project Valhalla's approach to flattening value types has evolved significantly, driven by a deeper understanding of value type semantics, challenges in the Java language and the JVM.

Two years ago John Rose stood here at JVMLS and unveiled the Project Leyden prototype efforts the team had been developing. Since then, Leyden has delivered JEPs in both JDK 24 and JDK 25. These early building blocks provide a foundation to continue…

Two years ago John Rose stood here at JVMLS and unveiled the Project Leyden prototype efforts the team had been developing. Since then, Leyden has delivered JEPs in both JDK 24 and JDK 25. These early building blocks provide a foundation to continue assembling new AOT features. And speaking of assembly, let's deep dive into how and when the AOTCache gets created. We'll also touch on what's next in the Leyden pipeline and look at some of the areas of future exploration as well as discuss some of the surprising learnings from the team along the way.

Two years ago John Rose stood here at JVMLS and unveiled the Project Leyden prototype efforts the team had been developing. Since then, Leyden has delivered JEPs in both JDK 24 and JDK 25. These early building blocks provide a foundation to continue assembling new AOT features. And speaking of assembly, let's deep dive into how and when the AOTCache gets created. We'll also touch on what's next in the Leyden pipeline and look at some of the areas of future exploration as well as discuss some of the surprising learnings from the team along the way.

Two years ago John Rose stood here at JVMLS and unveiled the Project Leyden prototype efforts the team had been developing. Since then, Leyden has delivered JEPs in both JDK 24 and JDK 25. These early building blocks provide a foundation to continue assembling new AOT features. And speaking of assembly, let's deep dive into how and when the AOTCache gets created. We'll also touch on what's next in the Leyden pipeline and look at some of the areas of future exploration as well as discuss some of the surprising learnings from the team along the way.

Two years ago John Rose stood here at JVMLS and unveiled the Project Leyden prototype efforts the team had been developing. Since then, Leyden has delivered JEPs in both JDK 24 and JDK 25. These early building blocks provide a foundation to continue assembling new AOT features. And speaking of assembly, let's deep dive into how and when the AOTCache gets created. We'll also touch on what's next in the Leyden pipeline and look at some of the areas of future exploration as well as discuss some of the surprising learnings from the team along the way.

Two years ago John Rose stood here at JVMLS and unveiled the Project Leyden prototype efforts the team had been developing. Since then, Leyden has delivered JEPs in both JDK 24 and JDK 25. These early building blocks provide a foundation to continue assembling new AOT features. And speaking of assembly, let's deep dive into how and when the AOTCache gets created. We'll also touch on what's next in the Leyden pipeline and look at some of the areas of future exploration as well as discuss some of the surprising learnings from the team along the way.