NEWSLETTER ISSUE #60 - September 2025

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Mastering Unicode in Java: Build World-Ready REST APIs with Quarkus

By Markus Eisele

From hidden string pitfalls to emoji-safe endpoints, learn how to handle text correctly in modern Java applications.

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Image by Pawel Czerwinski from Unsplash

Infusing AI into Your Java applications

By Don Bourne & Michal Broz

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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Build a REST API With Just 2 Classes in Java and Quarkus

By Octavio Santana

Quarkus enables a full CRUD API with just two classes using Hibernate ORM with Panache. No controllers or repositories needed — just define two classes, and deploy.

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Image by Possessed Photography from Unsplash

Image by Xavi Cabrera from Unsplash

Building AI-Powered Applications with LangChain4j and Quarkus

By Hamid Khanjani

Quarkus + LangChain4j lets you build fast, testable, production-ready AI services in Java.

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The Universal Adapter for Enterprise AI: Mastering the MCP with Quarkus and Langchain4j

By Elder Moraes

How to bridge the gap between generative AI's knowledge and its ability to act within an enterprise, enabling LLMs to interact with business systems. A hands-on guide to building an MCP server and a Langchain4j client to enhance system flexibility and maintainability.

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Building local LLM AI-Powered Applications with Quarkus, Ollama and Testcontainers

By Jonathan Vila López

Build local LLM applications with Ollama and Quarkus and test them with Testcontainers. A complete development guide.

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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.

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Videos of the Month

Quarkus Insights #219: Quarkus Loves Hibernate: ORM and Reactive Together

Quarkus Insights #218: The latest on the Agentic framework with LangChain4j

Quarkus Insights #217: Back to basics with Observability

Quarkus Insights #216: What's new with Leyden

Upcoming Events with Quarkus

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.