Devoxx Courses

Reaching Operational Excellence Using OpenTelemetry

Discover how to monitor production environments effectively with OpenTelemetry, learning to collect logs, obtain service metrics, and trace calls across your service landscape for operational excellence.

• YouTube
• 50 minutes
• Self-Paced
• Free Video

Dockerfiles, Buildpacks, Jib and More - What's the Best Way to Run Your Java Code in Containers?

Explore different containerization methods for Java applications, comparing Dockerfiles, Cloud-Native Buildpacks, Google's JIB, and jlink based on build time, size, standardization, security, and more.

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Bootiful Spring Boot in 2025

Discover how to build modular, scalable applications with Spring Boot 3.4 and Java 24, focusing on software design, team efficiency, and runtime optimization for the future.

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Continuations: The Magic Behind Virtual Threads in Java

Discover how continuations power Java's virtual threads by building a simple VirtualThread class using the Continuation API, understanding the pause/resume mechanism that enables high scalability.

• YouTube
• 47 minutes
• Self-Paced
• Free Video

How to Survive as a Developer in the Exponential Age of AI

Explore how developers can thrive amid rapid AI advancement with CTO Sander Hoogendoorn, who examines AI's current benefits, potential threats, and strategies for leveraging AI tools while maintaining code quality and professional relevance.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

Identity Crisis: Bending Spring Security to Your Advanced Use Cases

Dive into advanced Spring Security configurations for OAuth2 and OIDC integrations, including custom authorization, architecture insights, and implementing user impersonation features essential for enterprise systems.

• YouTube
• 46 minutes
• Self-Paced
• Free Video

Who Instruments the Instrumenters? - Demystifying Java Code Generation and Transformation

Explore the mechanics behind Java libraries like Spring and Mockito, learning how dynamic code generation and bytecode manipulation enable runtime instrumentation and transformation in the JVM.

• YouTube
• 49 minutes
• Self-Paced
• Free Video

Building AI Agents with Model Context Protocol: From Specification to Implementation

This conference talk explores the Model Context Protocol (MCP) as a standardized approach for AI agent development, focusing on how it enables AI models to interact with external tools and resources. Christian Tzolov demonstrates MCP's architecture and c…

• YouTube
• 51 minutes
• Self-Paced
• Free Video

RAG: From Dumb Implementation to Serious Results - Leveraging LangChain4j

This conference talk explores the journey from basic Retrieval Augmented Generation (RAG) implementations to sophisticated solutions that deliver meaningful results. Learn how to overcome common RAG challenges including inaccurate answers, poor document…

• YouTube
• 53 minutes
• Self-Paced
• Free Video

GreenOps and Green Coding - are you optimising the right things? by Oliver Cronk

This conference talk explores how developers and architects can make more sustainable technology choices by applying the Technology Carbon Standard (TCS) to application development and DevOps. Learn about the environmental impact of technology through an…

• YouTube
• 43 minutes
• Self-Paced
• Free Video

Hunting with Stream Gatherers - Java 24 Intermediate Operations Extension

This conference talk explores Stream Gatherers, a new feature in Java 24 that enhances Java's stream processing capabilities. Learn how Stream Gatherers serve as an extension point for intermediate operations in streams, addressing limitations of the ori…

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Hexagonal Architecture in Practice, Live Coding That Will Make Your Applications More Sustainable

Syllabus: Hexagonal Architecture in Practice, Live Coding That Will Make Your Applications More Sustainable

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Quiet on Set: Building an On Air Sign with Open Source Technologies by Danica Fine

Syllabus: Quiet on Set: Building an On Air Sign with Open Source Technologies by Danica Fine

• YouTube
• 52 minutes
• Self-Paced
• Free Video

From 0 to H AI ro: Unlock the power of generative AI with Kotlin, LangChain4j and Spring AI

This 49-minute conference talk by Urs Peter at Devoxx explores how JVM developers can leverage generative AI using Kotlin frameworks. Discover how Spring AI and LangChain4j enable Java, Kotlin, Scala, and Groovy developers to harness AI capabilities desp…

• YouTube
• 49 minutes
• Self-Paced
• Free Video

Clean Architecture for Serverless: Business Logic You Can Take Anywhere

Discover how to build portable Kotlin serverless applications using clean architecture principles, Spring Cloud Function, and Gradle modules to keep business logic cloud-agnostic while enabling deployment across multiple providers.

• YouTube
• 49 minutes
• Self-Paced
• Free Video