YouTube video by Devoxx

ALT: a baby yoda is holding a cup of coffee in his hands .

Many modern applications and tools rely on Java. Yet, their startup time and time-to-peak performance remain challenging, especially for microservices and Kubernetes workloads that require fast scaling and responsiveness. Project Leyden, an ambitious OpenJDK initiative, aims to overcome these performance bottlenecks. In this session, Ana and Moritz showed how you can take advantage of Leyden’s optimizations using Java 25 and Spring Boot. You also got practical techniques you can apply today, along with a peek into the ongoing work inside Leyden and what that means for the performance of your Java application. - Download as a PDF or view online for free

Project Babylon introduces the experimental Code Reflection technology that lets you define machine learning logic in plain Java code, without needing Python or external model files. It then uses Foreign Function and Memory (FFM) API to connect your code to native runtimes like ONNX Runtime for fast inference, including GPU acceleration. Furthermore, the Heterogeneous Accelerator Toolkit (HAT) provides a developer-facing programming model for writing and composing compute kernels, which can be more broadly applied-allowing Java libraries to seamlessly harness GPU power for high-performance computing tasks. Presented at Devoxx Belgium 2025 by Ana-Maria Mihalceanu and Lize Raes - Download as a PDF or view online for free

Contribute to JosePaumard/2025_Devoxx-BE-Loom-lab development by creating an account on GitHub.

Fast Track JDK Tools Hands-on-Lab. Contribute to java/lab-jdk-tools development by creating an account on GitHub.

Java 25 is getting released next Tuesday (September 16th)! Join our hosts Ana-Maria Mihalceanu, Billy Korando, and Nicolai Parlog as they lead you through the features and changes coming in Java 25, a...