Please subscribe to our YouTube channel @ https://www.youtube.com/@DevoxxForever
Subscribe to LinkedIn @ https://www.linkedin.com/company/voxxed-days-amsterdam
Follow us on Twitter @ https://twitter.com/voxxedamsterdam

Spring Boot makes it easy to launch cloud-ready applications, but building truly lean and efficient cloud services requires going beyond the basics. In this three-hour deep dive, you’ll immerse yourself in advanced Spring Boot techniques to optimize your applications for the cloud.

We will examine in depth how to reduce memory usage, improve startup times, and streamline your Spring Boot apps for modern cloud environments. Topics include Spring AOT, classpath exclusions, lazy beans, actuator configuration, custom JVM options, and additional state-of-the-art tools.

This session combines short presentations, live coding, and practical hands-on exercises. You will experiment with advanced configurations, observe real-time results, and troubleshoot performance challenges alongside the instructor. Real-world scenarios and best practices will help you immediately apply these techniques to your own projects.

Whether you want to fine-tune your CI/CD pipeline or push Spring Boot to its limits in production, you will leave with actionable skills, a collection of code samples, and a deeper understanding of cloud-native application optimization. Get ready for an in-depth, practical exploration of building lean Spring Boot applications for the cloud.

Devoxx

A deep-dive conference talk covering advanced optimization techniques for Spring Boot applications running in the cloud. Topics include benchmarking methodology using the Spring Pet Clinic, JVM-level optimizations (JDK version upgrades from 17 to 26, garbage collector tuning, tiered compilation, compact object headers, jlink for custom JVM images, AppCDS and AOT caching via Project Leyden), Spring Boot-specific optimizations (lazy initialization, AOT processing, removing actuators, dependency cleanup), and container image optimizations using Paketo Buildpacks. The talk compares multiple JVM runtimes (OpenJ9/Semeru, GraalVM JIT, Oracle JDK, Azul Zulu) and different base images (Ubuntu, Alpine via BellSoft Liberica) to show their impact on startup time, memory usage, throughput, and image size. Key takeaway: combining multiple simple optimizations yields significant cumulative improvements.

Spring Boot in the Cloud: Advanced Optimization Deep Dive by Patrick Baumgartner