Azul 15

I joined Azul as a Senior Technical Writer in 2022, and a fair chunk of what I write here connects back to that day job. These posts cover Azul and JVM topics that surround them: Zulu OpenJDK builds, the Zing JVM with its Falcon JIT compiler and Optimizer Hub, CRaC support for fast startup, and ReadyNow for predictable warm-up. Expect a mix of practical experiments (running CRaC on a Raspberry Pi, building an AI-powered docs search), conference talks where I share what I learn writing the Azul documentation , and honest takes on the broader Java ecosystem from someone who spends every day inside it.

Jun 25, 2025 · 4 min

Java 21+ Not Working on Raspberry Pi Zero 2

Originally posted on the Pi4J website . Dieter Holz was experimenting with Pi4J V3 on a Raspberry Pi Zero 2. Because this version requires Java 21 or newer, he upgraded his OS to a …

#javaonraspberrypi#zulu#java#raspberry-pi
Feb 19, 2025 · 6 min

Demo Application with CRaC and Loading Data in Memory

Coordinated Restore at Checkpoint (CRaC) is a JDK project, initiated by Azul . With CRaC, you can start Java programs with a shorter time to first transaction, combined with less …

#java#azul#crac
Oct 30, 2024 · 6 min

Why Java 8 is a Ticking Time Bomb Hiding Within Your Organization

When I spoke to developers at Devoxx in Belgium in October, I was surprised to learn how many of them are maintaining systems that are still running on Java 8 (released in 2014). …

#java#javafx#azul
Jul 22, 2024 · 5 min

JavaFX Nodes versus Canvas

Last week I was working on a blog post about Azul Zulu with JavaFX support for ARM systems, like the Raspberry Pi. As you can see in this video , I found out my little test …

#javafx#azul#zulu#raspberry-pi
Jun 24, 2024 · 3 min

Links of the BeJUG Presentation: Lessons Learned from #JavaOnRaspberryPi

These are all the links of my presentation at BeJUG in Waregem, Monday, July 24, 2024 .

#javaonraspberrypi#java#pi4j#azul
Mar 18, 2024 · 8 min

Search in Documentation with a JavaFX ChatGPT-like LangChain4j Application

At the Fosdem conference in Brussels on February 3rd, I gave a presentation about using an existing documentation set as the data for a ChatGPT-like application, created with …

#javafx#azul#artificial-intelligence#conference
Feb 2, 2024 · 2 min

Links of the Presentation: Experimenting with AI and LLM to make docs searchable through a chat application

These are all the links of my presentation at the Fosdem Conference in Brussels, Saturday, February 3th, 2024, 17:40 CET.

#java#javafx#azul#conference
Jan 29, 2024 · 3 min

Links of the Presentation: What I Learned About OpenJDK As a Docs Writer

These are all the links of my presentation at the JChampions Conference, Monday January 29, 2024, 16:00 CET.

#javaonraspberrypi#java#pi4j#azul
Oct 16, 2023 · 7 min

Running a CRaC Java application on Raspberry Pi - UPDATE

On July 15th of 2023, I published a post here about my initial experiments with CRaC on the Raspberry Pi . At that time, I found out that both the Linux kernel in Raspberry Pi OS …

#raspberry-pi#azul#zulu#crac
Oct 2, 2023 · 3 min

Links of the Presentation: Unlocking the Potential of Bits and Bytes

These are all the links of my presentation at Devoxx Belgium, Wednesday 12:00-12:50, Room 7.

#javaonraspberrypi#java#pi4j#vaadin
Jun 15, 2023 · 13 min

Running a CRaC Java application on Raspberry Pi

With the April release of the Zulu Build of OpenJDK, Azul announced the integration of CRaC in its version 17 of Java for Linux. Coordinated Restore at Checkpoint (CRaC) is a …

#raspberry-pi#azul#zulu#crac
Jun 11, 2023 · 6 min

One Year as a Technical Writer at Azul: A Journey of Growth and Learning.

Writing has always been my passion, and even in my previous jobs as a developer, I stood out as the one who enjoyed creating and maintaining documentation. But June 9th, 2023, …

#java#javafx#javaonraspberrypi#azul
Apr 10, 2023 · 15 min

Interview by Bazlur Rahman: Unlocking Java Secrets with Frank Delporte - Insights, Stories, and Tips for Success

On Foojay.io , Bazlur Rahman is publishing a series of interviews with various people from the OpenJDK community. I had the honor to be included in this series, and this is a …

#java#javafx#interview#azul
Sep 21, 2020 · 3 min

Azul Zulu OpenJDK 15 on Raspberry Pi

For this post I did some experiments with Java 15, reusing the Ubuntu 64bit SD card which was also used for the earlier post “Comparing a REST H2 Spring versus Quarkus …

#javafx#quarkus#spring#raspberry-pi
Aug 27, 2020 · 7 min

How to install and use Java 11 and JavaFX 11 on Raspberry Pi boards with ARMv6 processor

In a previous post “Installing Java and JavaFX on the Raspberry Pi” , you can read how to install BellSoft LibericaJDK to be able to run JavaFX applications with a …

#javafx#azul#gluon#raspberry-pi