Devoxx Courses

ES|QL - Elasticsearch's New Query Language for Java Developers

Explore ES|QL, Elasticsearch's new query language combining SQL and Bash, for improved performance and seamless integration across Java and Kibana.

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

Monitoring Java Application Security with JDK Tools and JFR Events

Utilize JDK tools and JFR Events to monitor Java application security, record properties, analyze TLS protocols, and inspect X.509 certificates.

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

DevoxxGenie: AI Assistant for IntelliJ IDEA - Integrating Local and Cloud LLMs

Explore DevoxxGenie, a Java-based LLM Code Assistant for IntelliJ IDEA, integrating local and cloud-based LLMs to revolutionize AI-augmented programming.

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

Java Meets AI: Build LLM-Powered Apps with LangChain4j

Explore LangChain4j framework to build AI-powered Java apps. Learn to integrate LLMs, generate images, and create advanced RAG systems. Dive into Quarkus integration for efficient development and deployment.

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

Unlocking Seamless Collaboration: Design-First APIs for Components

Explore design-first API approach for UI components to enhance collaboration between front-end and back-end teams. Learn to treat complex components as black-boxes with well-defined APIs for seamless development.

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

Concurrency in Spring Boot Applications - Making the Right Choice

Explore concurrency options in Spring Boot, from traditional threads to virtual threads. Gain insights for optimizing parallel data processing in your applications.

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

Building Resilient Applications with Durable Execution

Explore Durable Execution Engines to build resilient e-commerce backends. Learn to track user carts, ensure single payments, and manage order delivery while handling crashes and recoveries.

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

Deep Dive: Bootiful Spring Boot 3.x

Explore next-gen Spring Boot 3.x with Java 21, covering AI, modularity, data access, and production optimizations like virtual threads and GraalVM.

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

Bringing GenAI to the Modern Enterprise - A Production Use-Case in Serverless Java

Develop cutting-edge GenAI applications for enterprises using Java, AI orchestration frameworks, and multiple LLMs. Learn hands-on with a real-world production use-case in a serverless environment.

• YouTube
• 2 hours 35 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

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