Generative AI is no longer limited to research labs – it’s ready for real-world application. At JCON EUROPE 2025, Java developers will have the opportunity to experience exactly that: In a two-hour workshop, participants will learn how to build an intelligent chat assistant from scratch using Helidon and LangChain4J – practical, production-ready, and Java-first.
From Concept to Working Application
The hands-on session “Build an AI-Powered Application with Helidon and LangChain4J” focuses on direct implementation: no slides, no theory – just real code, modern tools, and comprehensible architectures. The goal is to create a functional Gen-AI-powered chat assistant that not only works as a demo but can also be expanded into real-world projects.
By the end of the session, participants will have:
- A fully functional GenAI chat assistant—ready to demo at work or extend into a real product.
- Practical experience with LangChain4J, the Java-native way to orchestrate LLMs and tools into intelligent workflows.
- A cloud-ready microservice built with Helidon, showcasing how to combine AI with robust application architecture.
- Techniques to integrate AI into real use cases—recommendations, step-by-step guidance, and task automation.
- Code you understand, wrote yourself, and can bring back to your team to inspire new solutions.
Your Experts: Oracle Specialists from the Field
Marta Tolosa, Application Development Specialist at Oracle, and Sydney Nurse, Data Development Specialist at Oracle EMEA lead the session.
Both bring extensive experience in developing data-driven applications and architecting complex systems – with a pragmatic mindset and a strong focus on real-world use cases.
For Those Who Want More Than AI Theory
This workshop is aimed at Java developers who want to explore Gen-AI technologies through real-world application – without detours through experimental frameworks or theory-heavy presentations. Instead, it focuses on practical tools, established libraries, and the clear integration of AI into existing Java applications.
It’s especially valuable for those who ask:
“But how do I actually build AI features into my app?”
Whether you’re new to LLMs or looking for a Java-native approach, this workshop offers a clear and actionable starting point – with practical benefits for your daily development work.
Registration and Participation
The number of participants for “Build an AI-Powered Application with Helidon and LangChain4J” at JCON EUROPE 2025 is limited. Early registration is recommended. You can register here.
