Wenn #Microservices langsamer starten, als sie skalieren sollen, wird’s teuer. Holger Tiemeyer beschreibt, wie #Quarkus durch Build-Time-Logik & #GraalVM genau diese Kostenfalle vermeidet.
Hier weiterlesen → https://javapro.io/de/java-trifft-zukunft-wie-quarkus-architektur-performance-und-cloud-native-nahtlos-verbindet/
#SoftwareArchitecture @graalvm @quarkusio
Legacy Java systems aren’t going away. But AI agents need structured interfaces.
A simple pattern works surprisingly well:
Run a Quarkus MCP server as a Kubernetes sidecar next to the legacy app.
No changes to the original code.
The sidecar translates REST APIs into MCP tools for agents.
Architecture + code examples here:
https://www.the-main-thread.com/p/legacy-java-ai-mcp-sidecar-quarkus
#Java #Quarkus #MCP #Kubernetes #AIagents #SoftwareArchitecture
Java testing is changing.
In 2026, many teams move away from heavy end-to-end tests and toward component tests. Faster feedback. Fewer flaky pipelines. More confidence in production.
In this article I show how this works in Quarkus and why it matters for modern Java systems.
https://www.the-main-thread.com/p/quarkus-testing-2026-java-component-tests
The Quarkus team recently published new performance benchmarks.
The interesting part isn’t just the results.
It’s the engineering work that went into making them reproducible and transparent.
• why benchmarking Java frameworks is harder than it looks
• why laptop benchmarks often mislead developers
• what these results actually mean
https://www.the-main-thread.com/p/quarkus-performance-benchmarks-java-developers
SVG files are great for vector graphics.
But sometimes you need a PNG.
In this article I show how to build a simple SVG → PNG conversion service in Java using Quarkus and JairoSVG.
Upload SVG → REST API → get PNG.
Full tutorial:
https://www.the-main-thread.com/p/svg-to-png-conversion-quarkus-jairosvg-java
Join us next Monday, March 23rd, at 9am EST for Quarkus Insights Ep. 240 as David Lloyd joins us to discuss Gizmo 2, a modernized, open-source bytecode generation library for Java. It serves as a simplified, higher-level alternative to complex bytecode libraries like ASM, allowing developers to generate Java class files relatively easily.
Quarkus security is easy to start. But turning an API into a real login system is not much harder.
In this tutorial we upgrade a Quarkus Security JPA app from HTTP Basic to:
• Form login
• “Remember me” sessions
• GitHub OIDC login
• Secure cookies
All step-by-step.
https://www.the-main-thread.com/p/quarkus-form-login-github-oidc-remember-me-jpa
Passwordless login is one of the simplest ways to improve security and UX.
In this tutorial I show how to build magic link authentication with Quarkus and Keycloak.
Email token → validation → secure session.
No passwords. No complexity. Just clean Java.
https://www.the-main-thread.com/p/passwordless-login-quarkus-magic-links-keycloak
JAVAPRO
Markus Eisele
Nicolas Delsaux
quarkusio