Maarten on IT

Hi, my name is Maarten, an IT specialist and Java Champion from the Netherlands! I’m enthousiastic about open source, Java and software architecture. For a better introduction, you can read more about me.

A few years ago, I’ve started this site as a list of personal notes, interesting findings or whatsoever. Over time, I’m adding content that more looks like a regular blog.

Today, it not only serves myself for things I tend to forget, but I know many more people around the global find new insights here. I hope it will be useful for you, too! Let me know what you think by getting in touch with me. For options, see the right pane.

Recent posts

Below are a few recent posts. Enjoy!

Devoxx 2023: First Impressions

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Devoxx 2023: First Impressions

This week, I’ve been attending Devoxx Belgium. It wasn’t my first time around, so I more or less knew what to expect in terms of atmosphere, content and people. In this post, I will share my first impressions. It includes some interesting talks that I joined. Of course, there were more - but those require a larger post, so those may end up in a seperate post later.

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Devnexus 2023 live blog

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Devnexus 2023 live blog

This week, I’m attending the 19th edition of the Devnexus conference in Atlanta! In those 19 years, Devnexus has truly grown to being one of the biggest Java and JVM-related conference in Nothern America, and it’s always been a pleasure to be there. This year marks my fourth attendance as a speaker, and I’ll be doing two talks myself.

In this post, I’ll be live blogging about some of the sessions that I’ve joined. Enjoy!

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Notes from JavaZone

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Notes from JavaZone

Last week, I attended JavaZone, the annual conference ran by javaBin, the Norwegian Java User Group. I have attended JavaZone in the past (2018) so I knew what to expect - and the bar was high! Because of that, I was looking forward a lot to join JavaZone again. Also, this would be my first conference as a Java Champion, which made it even more special.

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Using HSQL in OpenLiberty

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Using HSQL in OpenLiberty

A quick note, this time. Recently, I wanted to do some hacking around on Jakarta EE and MicroProfile. I chose to work with the OpenLiberty runtime, as I previously had good experiences with it. My pet project also needs a database, so for starters, I chose HyperSQL Database (HSQL DB). Here’s how I set it up.

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Mutation Testing badge with PIT and Stryker Dashboard

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Mutation Testing badge with PIT and Stryker Dashboard

Earlier, I wrote about integrating PIT with the Stryker Mutator Dashboard. The setup for that was pretty complicated, with some shell scripting that extracted the JSON payload for the report from a JavaScript file. Today, I’m introducing a much simpler approach to that: the Stryker Mutator Dashboard reporter for PIT.

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