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The Main Thread

Markus Eisele, Joe Rinehart

The Main Thread publishes practical, opinionated articles about modern Java, Quarkus, and real-world system architecture.

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Substack
PricingOnly free issuesPublishesDaily
Issues395SubscribersRead the-main-thread.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

Control Planes for AI: The Missing Layer in Enterprise Java

The enterprise software world is changing fast. For years, most companies treated artificial intelligence as a feature you could bolt onto the side of your application. A chatbot in a sidebar. A conversational helper that answers questions ...

47 hours ago
2
0

Your Java Heap Dumps Contain Plain-Text Passwords

The tool we use in this tutorial, `hprof-redact`, was created by Johannes Bechberger. If you follow JVM internals, performance tooling, or OpenJDK discussions, you probably know his work already. His original write-up on redacting heap dump...

3 days ago
1
0

From Local Model to Java API: LLMs with Quarkus

Most developers think running an LLM locally is about downloading a model and starting a server. If it responds on `localhost`, the problem looks solved. You wire your Java application to an OpenAI-compatible endpoint, and you move on.

4 days ago
3
0

Quarkus 3.31 & 3.32: Performance and Security Upgrades You Didn’t Notice

If you build serious Java services with Quarkus, you know the visible features. Fast startup. Small memory footprint. Dev Services. Native builds. That’s the headline. I have published the first chunk of 10 (almost) hidden features end of l...

5 days ago
7
0

Authors

The writers behind this newsletter.

  • Markus Eisele

    I’ve spent 20+ years helping Java systems adapt without breaking. Here I share the architecture, tools, and thinking behind that work. Java Champion · Developer · IBM Research.

  • Joe Rinehart

    Continually fighting my own urges to overcomplicate code, running, riding bikes, cooking dinner, and life in general.

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