Name: Plug-and-Play AI Memory with Neo4j Knowledge Graphs & AI Agents
Start: 2025-11-25T17:30:00.000Z
Location: OpenValue GmbH

**Dear Java Community,**

**Summer-Meetup incoming!**

We’re excited to invite you to the next **OpenValue Meetup** on **October 23rd** in Düsseldorf!

This evening, we’ll explore how Docker is evolving into the AI space and take a closer look at what’s coming with the long-awaited release of Maven 4.

Join us at our office at **Am Wehrhahn 41, 40211 Düsseldorf**, and connect with fellow developers who share a passion for software craftsmanship and continuous learning.
We’ll take care of **refreshing drinks and tasty food**—you just bring your curiosity and questions!
👉 **Please RSVP to confirm your attendance.**

This time, we are giving away 5 tickets to the JCON Conference 2026 to all participants of the meetup. It will take place from April 21 to April 23 in Cologne. You'll find more information on the [JCON website](https://2026.europe.jcon.one/).

***

### 🗓️ **Agenda**

* **17:30** – Doors open / Walk-in
* **18:00** – First Talk
* **18:45** – Break
* **19:00** – Second Talk
* **19:45** – Drinks & Discussions

***

### 🎤 **Talks**

#### **From Containers to Models: Docker’s AI Evolution with Model Runner and the Docker Model format**

**by Kevin Wittek**
The open source tool OpenRewrite can be used to automate and scale migrations. However, a needs analysis should be carried out before each migration. What should be done if the results of the analysis do not meet expectations or necessary steps are missing?

OpenRewrite recipes can extract detailed information from the source code and provide it in the form of DataTables, which are suitable for analysis. The same API is used here as for the development of project-specific migrations. The necessary migrations can be stored as recipe artifacts and applied to other projects as needed. Reuse reduces the effort required for further migrations.

This session covers the key concepts of DataTables, imperative Java recipes, recipe artifacts, and JavaTemplates for comprehensive migration engineering with OpenRewrite. After the session, participants will be able to apply the key constructs for planning, defining, and executing project-specific migrations.

#### **All you need to know about Maven 4!**

**by Matthias Bünger**
Maven is more than 20 years old, and it's last major version (Maven 3) was released in 2010. Since then Maven got several great updates, but the Maven team also realized that Maven can't evolve further without huge changes which have the capability to break the whole ecosystem if done wrong. Now - after years of intensive planning and coding - the release of Maven 4 is closer than ever before! In this talk I'll speak about the motivation and challenges the team had while developing Maven 4 and of course about its new features and improvements.
We're looking forward to another great evening of learning, sharing, and networking—**don’t miss out**!

See you on October 23rd! 👋

OpenValue Düsseldorf

Marvin Rensing

Sebastian K.

Tobias Vossen

Jan Matèrne

Charles Nwofor

Ercan Duman

Niklas Enns

Konstantin

Guido 

Benedikt Loup

Subhashini

dbaer

Corinna Verena Hackenberg

Matthias Bünger

Reza Shafiee

Sandra Parsick

Lukas Poos

Christoph Bastanier

Greta S.

Kavya Reddy

From Docker Containers to AI Models & All you need to know about Maven 4!

**Dear Java Community,**

We are delighted to announce our next **OpenValue Meetup** on **November 13th in Munich**.

This time, we’re hosting a very special guest: **Markus Eisele**, Java Champion and a renowned expert, who will dive into **connecting Java applications to AI models** using **Quarkus** and **LangChain4j**. Expect plenty of Demos and source code that you can steal.

📍 **Location:**
OpenValue Office
Sonnenstraße 22, 80331 München

**RSVP now to secure your spot**.

🗓️ **Agenda**

* 18:30 Arrival, food & drinks
* 19:00 Start of talk
* 20:00 Drinks & Discussions

🎤 **Talk:**
**"Everything You Ever Wanted to Know About Quarkus and LangChain4j (But Were Afraid to Ask)"** by *Markus Eisele*
Let’s make this simple: if you’ve ever wondered how to make Java fly at supersonic speed *and* talk to large language models: This session is for you.
We’ll look into **Quarkus**, the lightning-fast, developer-happy Java framework, and **LangChain4j**, the library that connects your Java apps to AI models like ChatGPT and beyond.
But here’s the twist: This isn’t a one-way lecture.
This is a **live, question-driven** session where you can interrupt, challenge, or ask *anything* about Quarkus, AI, or how to glue them together.
I’ll bring:

* Demos that actually work (mostly)
* Source code you can steal
* Slides with just the right amount of memes
* And a good dose of German humor

You bring your questions, your curiosity, and maybe your favorite debugging horror story.
By the end, you’ll not only understand how Quarkus and LangChain4j work. You’ll *feel* like building something with them.
Let’s make Java fun (again)!

**About Markus:**
Markus is a technology leader with a focus on Java, cloud-based development, and open-source platforms. With over 20 years of experience guiding organizations from monolithic systems to microservices and container-based environments. He serves as a Java Champion and works as developer advocate and product manager at IBM Research.

OpenValue München

Enis Spahi

Eduard Frank

Andrey Shilov

Ivan Maltsev

Ali Faradjpour

Indranil Dey

Yurii Kuzmenko

Victor Alcantara

Majid Hameed

Frank Merwerth 

Slawomir Ziolkowski

Kurt Fastner

Everything You Ever Wanted to Know About Quarkus and LangChain4j

OpenValue GmbH

**Dear Java Community,**

The meetup season is not over! And we are excited to announce another **OpenValue Meetup** on **November 25th in Munich**.

This time, we’re hosting a special event for **Neo4j** enthusiasts. **Zaid Zaim**, Microsoft MVP and TED speaker, will give an interesting talk where he will explain how to use Neo4j knowledge graphs as a powerful memory layer for your AI agents.

📍 **Location:**
OpenValue Office
Sonnenstraße 22, 80331 München

**RSVP now to secure your spot**.

🗓️ **Agenda**

* 18:30 Arrival, food & drinks
* 19:00 Start of talk
* 20:00 Drinks & Discussions

🎤 **Talk:**
**"Plug-and-Play AI Memory with Neo4j Knowledge Graphs & AI Agents" by Zaid Zaim** *(Developer Advocate at Neo4j)*
AI agents are becoming core to modern applications, from copilots that assist knowledge workers to autonomous systems that manage complex workflows. Yet one major challenge remains: memory. Without it, agents lose context, forget past interactions, and often hallucinate—undermining trust and reliability. In this session, you’ll learn how to use a plug-and-play Neo4j knowledge graph as a powerful memory layer for your AI agents. Knowledge graphs capture not just facts, but relationships, allowing your agent to build a living model of conversations, decisions, and data over time. Combined with modern AI services, this approach helps ground responses, reduce hallucinations, and create a feedback loop where agents become more adaptive, contextual, and trustworthy. Through a live demo, we’ll show how to connect graph-powered memory into your AI workflows with minimal setup, so you can build copilots and agentic applications that don’t just respond in the moment—but remember, learn, and evolve with your users.

**About Zaid:**
As a Developer Advocate at Neo4j, I help developers harness the power of graph technology and AI. A Microsoft MVP and global speaker at events like TED, Microsoft Build, and WeAreDevelopers, I focus on making complex tech accessible through content, community, and hands-on support. My mission is to connect, empower, and inspire developers to build impactful solutions.

Andreas Keefer

Michael Schuh

Plug-and-Play AI Memory with Neo4j Knowledge Graphs & AI Agents

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