Category Archives: Open Source

Guest on “Studio Jakarta EE”

Yesterday I had the honour to be guest on the YouTube show Studio Jakarta EE, and had a nice chat with its host Ivar Grimstadt (Jakarta EE Developer Advocate at the Eclipse Foundation).

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A tiny plug-in based CLI framework ontop of jCommander

It is still a very initial beta, but we are rather proud of it: Today we published the source code of our tiny CLI application framework built around the terrific jCommander and ServiceLoader. What our framework provides ontop of jCommander … Continue reading

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JAX-RS Done Right! (IV. – Static Routing)

Hey guys! How’s it going? Let’s practice different STATIC routing variants using @Path. Code example can be found on Gitlab: https://gitlab.com/mkarg/jaxrs-done-right Stay safe and… Party on!

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Jakarta EE 9 Milestone 1 SNEAK PEEK

Hey guys! How’s it going? Jakarta EE 9 Milestone 1 was released in June, and Ivar asked for cupcakes. So here is mine: Cherry Cheesecake with Namespace Migration. Like to taste JAX-RS on a bed of Java SE 11? Code … Continue reading

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JAX-RS Done Right! (III. – Coding Client for “Hello, world!”)

Hey guys! How’s it going? Today I will show you how to use the JAX-RS Client API to write a client for a “Hello, world!” server. Code example can be found on Gitlab: https://gitlab.com/mkarg/jaxrs-done-right Stay safe and… Party on!

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Contributing to Open Source Made Easy

Hey guys! How’s it going? You always wanted to contribute to an open source project, but feared the time to invest or the paperwork to sign? Or you just didn’t know where to chime in? Now you get a jumpstart! … Continue reading

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JAX-RS Done Right! (I. – Introduction)

Hey guys! How’s it going? Since more than a decade I am part of the group which defines the JAX-RS standard meanwhile, and often I saw people using this API in a wrong way. So I thought it is time … Continue reading

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Biggest Maven Version Ranges Mistakes

Hey guys! How’s it going? We all think that we know what’s in a Maven Version Number, but when it comes to Version Ranges we typically do common mistakes. In Episode 04 of Head Crashing Informatics you will learn to … Continue reading

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Do you know Gitpod?

Hey guys! How’s it going? Gitpod is a new and amazing way to hack on your Java code. Just prefix your Gitlab or Github URL (pointing either to a project, branch, MR or commit), with gitpod.io/# and few seconds later you … Continue reading

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The JAX-RS Channel On YouTube

People know me mostly from my work on JAX-RS, typically by reading my magazine articles, blogs or attending to one of the German conferences. Thanks to Corona (BTW, did I mention that the Curevac’s vice president was in my graduating … Continue reading

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