Devoxx Courses

Lazy Java

Explore lazy evaluation patterns in Java, including streams, reader monads, and trampolines. Learn to optimize performance, handle infinite data, and improve code design through practical examples and live coding.

• YouTube
• 51 minutes
• Self-Paced
• Conference Talk

Effective Scala - Reloaded

Optimize Scala usage with practical do's and don'ts, covering style, abstractions, expressions, collections, and more. Learn to write efficient, clean code and avoid common pitfalls in Scala development.

• YouTube
• 51 minutes
• Self-Paced
• Conference Talk

The Java 9 Module System Beyond The Basics

Explore advanced Java 9 modularity: fine-grained dependencies, services, encapsulation, reflection, jdeps analysis, command line flags, and runtime image creation with jlink. Become a local JPMS expert.

• YouTube
• 48 minutes
• Self-Paced
• Conference Talk

One Does Not Simply Log In - SSO for Web APIs

Explore OAuth2, OpenID Connect, and JWT for secure authentication in distributed systems. Learn practical solutions using JBoss Keycloak for modern web API security challenges.

• YouTube
• 54 minutes
• Self-Paced
• Conference Talk

JDK 9 - The Performance Bits or Why You Would Really Want to Upgrade to Java 9

Explore Java 9's performance enhancements in language, libraries, and JVM. Learn about improvements, potential regressions, and decide if upgrading is worthwhile for your projects.

• YouTube
• 54 minutes
• Self-Paced
• Conference Talk

Why Spring Loves Kotlin

Explore Spring's Kotlin support to build efficient projects using Spring Framework 5, Spring Boot 2.0, and WebFlux. Learn to transform Java+JavaScript projects into pure Kotlin applications with reactive programming.

• YouTube
• 44 minutes
• Self-Paced
• Conference Talk

Real World Serverless - Architecture, Patterns and Lessons Learned

Explore serverless architecture patterns, real-world challenges, and best practices for complex AWS applications. Learn about testing, debugging, monitoring, and securing serverless systems while addressing common misconceptions.

• YouTube
• 46 minutes
• Self-Paced
• Conference Talk

Legacy, for Lack of a Better Word, Is Good

Techniques for rejuvenating legacy systems in finance, focusing on modularization and refactoring without halting development. Insights from decades of experience in software product design.

• YouTube
• 47 minutes
• Self-Paced
• Conference Talk

A Hitchhiker's Guide to the Functional Exception Handling in Java

Explore functional error handling in Java without "throws" and "try-catch" using type-driven development techniques like Optional, Try, and Either for cleaner, more aesthetic code.

• YouTube
• 38 minutes
• Self-Paced
• Conference Talk

DROP DATABASE - Galactic Story

Explore why traditional databases may hinder system performance and design. Learn alternative approaches to data management, focusing on RAM/Heap storage for improved efficiency and programming joy.

• YouTube
• 53 minutes
• Self-Paced
• Conference Talk

Not Your Father's Complexity - Performance in a New Machine Age

Explore memory layout's impact on Java program performance, challenging traditional complexity analysis and showcasing alternative collection implementations for optimized code execution.

• YouTube
• 49 minutes
• Self-Paced
• Conference Talk

One Size Fits All

Explore group dynamics and diversity beyond demographics to enhance team creativity and problem-solving in IT. Learn to leverage differences for better outcomes in complex challenges.

• YouTube
• 35 minutes
• Self-Paced
• Conference Talk

Troubleshooting & Debugging Production Applications in Kubernetes

Explore advanced techniques for troubleshooting and debugging Kubernetes applications in production, including centralized logging, tracing, and live debugging tools for microservices at scale.

• YouTube
• 55 minutes
• Self-Paced
• Conference Talk

Amazon Alexa Skills vs Google Home Actions - The Big Java VUI Faceoff

Comparing Java implementations for Alexa Skills and Google Home Actions through live coding. Explore voice user interfaces for leading voice assistants and determine which platform offers better development experience.

• YouTube
• 50 minutes
• Self-Paced
• Conference Talk

Tensorflow, Deep Learning and Modern RNN Architectures - Without a PhD

Explore modern RNN architectures and deep learning techniques for image recognition, natural language processing, and reinforcement learning. Gain practical tips and engineering best practices for applying these advanced technologies.

• YouTube
• 53 minutes
• Self-Paced
• Conference Talk