Devoxx Courses

Using FlameGraphs to Illuminate the JVM

Explore FlameGraphs for JVM profiling, combining Linux perf and JDK options to visualize execution profiles across OS, JVM, and Java code. Learn advanced usage and insights into performance optimization.

• YouTube
• 52 minutes
• On-Demand
• Conference Talk

The Art of Discovering Bounded Contexts

Explore advanced domain-driven design techniques for identifying bounded contexts, designing microservices, and improving organizational alignment in complex systems.

• YouTube
• 42 minutes
• On-Demand
• Conference Talk

Transactional Actors with Eclipse Vert.x

Explore integrating transactional actor model with Eclipse Vert.x using Narayana transactions and Software Transactional Memory for asynchronous, event-driven applications with volatile, persistent, and nested transactions.

• YouTube
• 55 minutes
• On-Demand
• Conference Talk

Git Workflow Strategies for Technical Debt Management

Explore Git workflow strategies to incrementally reduce technical debt, focusing on measurement, backlog management, and continuous inspection for improved code quality.

• YouTube
• 36 minutes
• On-Demand
• Conference Talk

Using Java 8 Lambdas and StampedLock to Manage Thread Safety

Explore StampedLock for thread safety in Java 8, covering optimistic reads, atomic references, and lock-free solutions. Learn practical idioms and Lambda applications for efficient concurrent programming.

• YouTube
• 51 minutes
• On-Demand
• Conference Talk

Turbo Charge CPU Utilization in Fork - Join Using the ManagedBlocker

Optimize Fork/Join CPU usage with ManagedBlocker: Learn to implement reserved caching, reduce wasted cycles, and maintain parallelism in recursive decomposition algorithms.

• YouTube
• 52 minutes
• On-Demand
• Conference Talk

Cluster Your MicroProfile Application Using CDI and JCache

Learn to cluster MicroProfile applications using CDI and JCache. Explore live coding demos, Hazelcast integration, and running clusters on Raspberry Pi's for high availability and scalability.

• YouTube
• 52 minutes
• On-Demand
• Conference Talk

Welcome Alexa, Your New Personal Assistant

Learn to create and integrate Alexa, the voice-controlled personal assistant, using Raspberry Pi and Java. Explore custom skills, home automation, and serverless AWS Lambda implementation.

• YouTube
• 48 minutes
• On-Demand
• Conference Talk

How Modern SQL Databases Come Up With Algorithms That You Would Have Never Dreamed Of

Discover how modern SQL databases outperform hand-written algorithms with cost-based optimization, enabling complex queries on large datasets to run in milliseconds. Learn why SQL is the ideal language for business logic.

• YouTube
• 47 minutes
• On-Demand
• Conference Talk

The Diabolical Developer's Guide to Performance Tuning

Learn a systematic approach to diagnose and fix Java/JVM application performance issues quickly using the Performance Diagnostic Methodology (PDM), reducing troubleshooting time from weeks to hours.

• YouTube
• 51 minutes
• On-Demand
• Conference Talk

Migrating to Modules

Live-coding demonstration of modularizing a Java 8 application using Java 9's Project Jigsaw, showcasing gradual migration strategies and compatibility with non-modularized libraries.

• YouTube
• 51 minutes
• On-Demand
• Conference Talk

Programming Your Body with Chip Implants

Explore the potential of chip implants for health monitoring, identification, and tracking. Discover current possibilities and future implications of connected bodies, with insights from a speaker's personal experience.

• YouTube
• 47 minutes
• On-Demand
• Conference Talk

G ∘ F Patterns

Explore functional programming in Java 8 through live coding, reimagining GoF design patterns using lambda expressions for simpler, more concise implementations.

• YouTube
• 51 minutes
• On-Demand
• Conference Talk

Microservices for the Masses with Spring Boot, JHipster, and JWT

Learn to build and secure microservices using Spring Boot, JHipster, and JWT. Explore deployment options, API gateways, and modern tools like Docker and Kubernetes in this code-heavy presentation.

• YouTube
• 51 minutes
• On-Demand
• Conference Talk

Using Sagas to Maintain Data Consistency in a Microservice Architecture

Explore sagas as an alternative to distributed transactions in microservices, covering benefits, drawbacks, design principles, and implementation strategies for maintaining data consistency.

• YouTube
• 49 minutes
• On-Demand
• Conference Talk