NEWSLETTER ISSUE #59 - August 2025

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LangChain4j Quarkus MCP Example

By Omozegie Aziegbe

Learn how to integrate LangChain4j with Quarkus MCP for building intelligent assistants using tools and natural language queries.

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Create a Java REST API with Quarkus and Eclipse JNoSQL for MongoDB

By Otavio Santana

Learn to create a REST API with Quarkus and Eclipse JNoSQL for MongoDB.

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Create your first AI Java application with Quarkus and LangChain4j

By Laura Cowen

Learn how to create a simple RESTful Java AI application that asks a large language model (LLM) to write a short poem based on a topic provided by the application user.

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Building a CLI with Quarkus, Kotlin and GraalVM

By Maarten Mulders

Build fast, native command-line tools with Quarkus, Kotlin, and GraalVM. This guide covers project setup, dependency injection, PicoCLI integration, and proven practices for developer productivity, automation, and modern software development.

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Color Whisperer: Build a Java App That Sees the Soul of Your Images

By Markus Eisele

Combine K-Means clustering, a local LLM, and Quarkus to transform image uploads into beautiful, named color palettes.

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Build Your First AI Agent in Java: Quarkus, Langchain4j, and the A2A SDK

By Markus Eisele

How to create a summarizing agent that speaks the A2A protocol and harnesses local or cloud LLMs

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Get Red Hat build of Quarkus 3.15, a downstream enterprise-supported version of Quarkus. Learn about support options.

Red Hat Build of Quarkus 3.15 Documentation

Top Social Posts & Discussions

Github Discussions is Quarkus's place for community collaboration, conversation, events, Q&A, job opportunities, and other great community topics.

Go join the Quarkus discussions!

Videos of the Month

Quarkus Insights #215: Customer stories of Quarkus in the wild

Quarkus Insights #214: Quarkus and build reproducibility: are we there yet?

Quarkus Insights #213: What's new with Chappie/Quarkus Assistant?

Upcoming Events with Quarkus

KCD Columbia

Date: August 28-29, 2025
Location: Bogotá, Columbia
Event Type: In Person

KCD Colombia is the meeting point where community, technology and innovation meet Cloud Native converge to transform the digital future of Latin America.

JavaZone

Date: September 18, 2025
Location: Madrid, Spain
Event Type: In Person

DevConf.US 2025 is the 7th annual, free, Red Hat sponsored technology conference for community project and professional contributors to Free and Open Source technologies at Boston University in the historic city of Boston, USA.

TDC São Paulo

Date: September 17-19, 2025
Location: São Paulo, Brazil
Event Type: In Person & Virtual

TDC São Paulo features three days of diverse lecture tracks and panels for intermediate and advanced levels, focused on advancing your career and accelerating the adoption of emerging technologies.

XConf

Date: September 18, 2025
Location: Madrid, Spain
Event Type: In Person

With its relaxed atmosphere and focus on high-quality topics and talks, XConf offers a unique opportunity to connect with like-minded technologists. It’s a space to explore bold ideas, challenge yourself with fresh perspectives and deepen your understanding of the role technology plays in solving real-world problems. Like catching up with old friends at a class reunion, XConf combines familiarity and inspiration in a way that leaves a lasting impact.

DevConfUS

Date: September 19-20, 2025
Location: Boston, USA
Event Type: In Person

DevConf.US 2025 is the 7th annual, free, Red Hat sponsored technology conference for community project and professional contributors to Free and Open Source technologies at Boston University in the historic city of Boston, USA.

Swiss Dev Confederation

Date: September 23, 2025
Location: Zurich, Switzerland
Event Type: In Person

Welcome to the second annual Swiss Dev Confederation in Zürich - where builders and problem solvers unite at the crossroads of cloud architecture and business innovation.

dev2next

Date: September 29-October 2, 2025
Location: Colorado Springs, CO USA
Event Type: In Person

dev2next is the premier conference designed for software developers, architects, technology leaders, development managers, and directors. Explore cutting-edge strategies, tools, and essential practices for building powerful applications using the latest trends and good practices.

IBM TechXchange

Date: October 6-9, 2025
Location: Orlando, Florida
Event Type: In Person

IBM TechXchange is the ultimate learning hub for developers and technologists looking to grow their skills.

Devoxx Belgium

Date: October 6-10, 2025
Location: Antwerp, Belgium
Event Type: In Person

This edition will shine a light on agentic workflows and autonomous systems – secure, intelligent, and increasingly capable. Whether you’re working with Model Context Protocol (MCP), building multi-agent architectures (A2A), experimenting with (Java) LLM-based Agent libraries, doing LLM inference using Java on GPU, or Spec-Driven-Development, Devoxx is the stage to share your tools, insights, and ideas.

Basel One

Date: October 15-16, 2025
Location: Basel, Switzerland
Event Type: In Person

The independent software development conference in the Markthalle Basel.

Lindholmen Software Development Day

Date: October 22, 2025
Location: Lindholmen, Sweden
Event Type: In Person

Lindholmen Software Development Day is the number one annual meeting place for software developers and experts in and around Gothenburg on the Swedish westcoast. The Lindholmen Software Development Day is an enabler for collaboration to bring future success in software development in Sweden. The event offers cutting-edge open seminars and a meeting place for industry, academia, and society.

Øredev

Date: October 22, 2025
Location: Lindholmen, Sweden
Event Type: In Person

 Øredev Developer Conference 5-7 Nov 2025, Malmö, Sweden. Øredev is the Premier developer's conference in Europe, focused on the whole software development process.

Devoxx Morocco

Date: November 12-14, 2025
Location: Marrakech, Morocco
Event Type: In Person

DEVOXX MOROCCO is the largest developer conference in Africa & Middle East region, which aims to enable local and international technology experts to share their knowledge and expertise with technology enthusiasts, the 3-day conference covers sessions on Java, Cloud, Containers & Cloud Native topics, DevOps & Culture, Big Data Machine Learning & AI, Modern Web, and more..

YOW! Melbourne

Date: December 3-5, 2025
Location: Melbourne, Australia
Event Type: In Person

This edition will shine a light on agentic workflows and autonomous systems – secure, intelligent, and increasingly capable. Whether you’re working with Model Context Protocol (MCP), building multi-agent architectures (A2A), experimenting with (Java) LLM-based Agent libraries, doing LLM inference using Java on GPU, or Spec-Driven-Development, Devoxx is the stage to share your tools, insights, and ideas.

YOW! Brisbane

Date: December 8-9, 2025
Location: Brisbane, Australia
Event Type: In Person

YOW! brings together leading software development industry experts from all over the world for an in-depth look at emerging technologies and best practices without commercial hype.

YOW! Sydney 2025

Date: December 10-12, 2025
Location: Sydney, Australia
Event Type: In Person

YOW! brings together leading software development industry experts from all over the world for an in-depth look at emerging technologies and best practices without commercial hype.

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Quarkus is supersonic subatomic java.