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A N M Bazlur Rahman @bazlur.ca · 28d

Fresh off the press. Alhamdulillah!

My book, 'Modern Concurrency in Java,' is finally available.

learning.oreilly.com/library/view...

Amazon: www.amazon.ca/Modern-Concu...

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A N M Bazlur Rahman @bazlur.ca · Aug 28

Thanks, it's fixed now.

A N M Bazlur Rahman @bazlur.ca · Aug 26

I'm also wondering that!

Modern Concurrency in Java

A N M Bazlur Rahman @bazlur.ca · Aug 21

I'm happy to share that the Early Release of Modern Concurrency in Java, with all chapters, is now available on the O'Reilly platform.

If you have access to the O'Reilly platform, you can take a look now.

learning.oreilly.com/library/view...

Welcome to the future of Java. With this book, you'll explore the transformative world of Java 21's key feature: virtual threads. Remember struggling with the cost of thread... - Selection from Modern...

learning.oreilly.com

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A N M Bazlur Rahman @bazlur.ca · Aug 12

Over the weekend, I built Smart Mock—an AI-powered API mock server that generates realistic, context-aware responses from your OpenAPI specs.

🛠 Built with Spring Boot, Ollama, and LangChain4j
💻 Runs locally—ready in minutes

Check it out here: bazlur.substack.com/p/building-s...

Building Smart Mock: An AI-Powered API Mock Server with Spring Boot and Ollama

In software development, teams often need to mock APIs during the early stages of integration.

bazlur.substack.com

Fail-Fast vs Fail-Safe Iterators in Java: Understanding ConcurrentModificationException

A N M Bazlur Rahman @bazlur.ca · Jul 20

Let's revisit the very familiar ConcurrentModificationException and why it happens. But more importantly, why does Java NEED to throw it?

www.linkedin.com/pulse/fail-f...

I am pretty sure you have encountered a ConcurrentModificationException when attempting to modify a collection within a loop. Once you encounter it once, you learn the lesson that this is something we...

www.linkedin.com

A N M Bazlur Rahman @bazlur.ca · Jul 7

I've launched The Coding Café on Substack: lnkd.in/gtkcVUR2

The subscription is growing rapidly!

☕ What to expect:
- Deep dives into Java features
- LLMs and AI with Java experiments (LangChain4j and beyond!)
- Trendy stuff that matters

Join me to get LLMs and Java in your mailbox weekly!

This link will take you to a page that’s not on LinkedIn

lnkd.in

Building FormPilot: My Journey Creating an AI-Powered Form Filler with RAG, LangChain4j, and Ollama

A N M Bazlur Rahman @bazlur.ca · Jul 6

Built an AI Chrome extension that fills forms intelligently! 🚀

FormPilot uses: - Local LLMs (privacy-first)
- RAG for personalization
- Java Spring Boot backend
- Zero API costs.

Code + guide:

open.substack.com/pub/bazlur/p...

Have you ever found yourself filling out the same information on web forms over and over again?

open.substack.com

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A N M Bazlur Rahman @bazlur.ca · Jul 4

🛩️ I built an AI that knows what planes are flying overhead — in real time.q

No cloud. No APIs. No fees.
Runs fully local.

Built with:
⚙️ Spring Boot + LangChain4j
🧠 Ollama (local AI)
📡 Real-time flight data

What would you build with local AI?

bazlur.substack.com/p/building-a...

Building an AI-Powered Flight Tracker with Spring Boot and Local LLMs

Build an AI-powered flight tracker with Spring Boot and LangChain4j. Uses local AI models, real-time aircraft data, and runs entirely offline. Complete tutorial with code.

bazlur.substack.com

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A N M Bazlur Rahman @bazlur.ca · Jun 29

Read the rest of the interview:

www.infoq.com/news/2025/06...

Introducing Embabel: Advanced AI Agent Development for Java Applications

A N M Bazlur Rahman @bazlur.ca · Jun 24

www.infoq.com/news/2025/06...

🚀 Spring founder Rod Johnson just launched Embabel, and Java developers can finally build AI agents without Python!

This isn't just another wrapper. And he's actually pulling it off.
Give it a read.

Introducing the Embabel Agent Framework, a pioneering platform developed by Spring founder Rod Johnson, designed to revolutionize AI applications on the JVM. By integrating structured agent developmen...

Building Robust AI Applications with LangChain4j Guardrails and Spring Boot - A N M Bazlur Rahman

Reposted by A N M Bazlur Rahman

A N M Bazlur Rahman @bazlur.ca · Jun 9

Introducing the Embabel Agent Framework, a pioneering platform developed by Spring founder Rod Johnson, designed to revolutionize AI applications on the JVM.

Read more: www.infoq.com/news/2025/06...

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A N M Bazlur Rahman @bazlur.ca · Jun 22

Guardrails are finally available in LangChain4j! I explored them this morning—super easy to use and a big step toward safer AI apps in Java.

Check out my write-up:

bazlur.ca/2025/06/21/b...

Learn how to build secure AI applications using LangChain4j guardrails in Spring Boot. Implement input/output validation, prevent prompt injection & more.

bazlur.ca

Introducing Embabel: Advanced AI Agent Development for Java Applications

A N M Bazlur Rahman @bazlur.ca · Jun 9

Introducing the Embabel Agent Framework, a pioneering platform developed by Spring founder Rod Johnson, designed to revolutionize AI applications on the JVM.

Read more: www.infoq.com/news/2025/06...

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A N M Bazlur Rahman @bazlur.ca · Jun 5

🚀 My latest news piece is live on InfoQ: www.infoq.com/news/2025/06...

I had the pleasure of speaking with Rod Johnson, the creator of Spring and Embabel, to gain insights into this framework for building AI-powered Java applications.

Check it out and let me know your thoughts!

Introducing the Embabel Agent Framework, a pioneering platform developed by Spring founder Rod Johnson, designed to revolutionize AI applications on the JVM. By integrating structured agent developmen...

Instance Main Methods Move from Preview to Final in JDK 25

A N M Bazlur Rahman @bazlur.ca · May 23

Java turns 30 today! 🎉

From "Write Once, Run Anywhere" to powering cloud-native, AI-driven, and distributed systems, Java has grown into a modern, expressive, and resilient language—far beyond the stereotypes.

Happy birthday 🎂 to Java

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A N M Bazlur Rahman @bazlur.ca · May 19

www.infoq.com/news/2025/05...

JEP 512 enhances Java with Compact Source Files and Instance Main Methods in JDK 25, easing the learning curve for beginners. Key features include simplified syntax, automatic imports, and a new IO helper class, to create programs with minimal complexity.

JEP 512 enhances Java with Compact Source Files and Instance Main Methods in JDK 25, easing the learning curve for beginners. Key features include simplified syntax, automatic imports, and a new IO he...

Instance Main Methods Move from Preview to Final in JDK 25

A N M Bazlur Rahman @bazlur.ca · May 5

Instance Main Methods Move from Preview to Final in JDK 25

www.infoq.com/news/2025/05...

JEP 512 enhances Java with Compact Source Files and Instance Main Methods in JDK 25, easing the learning curve for beginners. Key features include simplified syntax, automatic imports, and a new IO he...

bit.ly

Java + LLMs: Building LLM Apps in Java with Jakarta - A N M Bazlur Rahmann, Thu, Apr 24, 2025, 6:30 PM | Meetup

A N M Bazlur Rahman @bazlur.ca · Apr 24

I will speak at JUG Toronto tomorrow on the topic "Building Applications with LLMs and Java"!

I'll be sharing tons of demos with LIVE Coding.

📍 Free Times Cafe, 320 College St, Toronto, ON
📅 www.meetup.com/toronto-java...

I would love to see some familiar faces and meet fellow Java enthusiasts.

AI is revolutionizing the software landscape. However, for many Java developers, integrating these powerful AI tools into existing enterprise applications or a new one can

www.meetup.com