Author Archives: Markus Karg

About Markus Karg

Java Guru with +30 years of experience in professional software development. I travelled the whole world of IT, starting from Sinclair's great ZX Spectrum 48K, Commodore's 4040, over S/370, PCs since legendary XT, CP/M, VM/ESA, DOS, Windows (remember 3.1?), OS/2 WARP, Linux to Android and iOS... and still coding is my passion, and Java is my favourite drug!

You need local named classes! – The Two Minutes Tuesday 007

Hey guys! Local named classes are actually valuable, and this video tells you why. Thank you, Michael Simons, for sending your solution to the question I asked in episode 003 (! CU!

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Java Language Evolution

Hey guys! How’s it going? This is not your dad’s Java anymore! The Java programming language has changed massively since Java 7, after introduction of the keyword var, records, switch expressions, and many more syntax changes. Modern Java feels quite … Continue reading

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A VERY BAD Decision – The Two Minutes Tuesday 006

Hey guys! Everybody does mistakes – even the Eclipse Foundation’s Jakarta EE Working Group. They decided BY ACCIDENT that a contributor loses his committer state once his employer is not paying Working Group Membership Fees. That is nuts! But good … Continue reading

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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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Multi-Release Jars Made Easy

Hey guys! How’s it going? Multi-Release Jars allow to deliver a fully backwards compatible archive which uses the best implementation for each Java release. In this video I will show you how easy you create it using Maven. Stay safe … Continue reading

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[UNBOXING] Why Canon EOS R6?

Hey guys! How’s it going? I’m unboxing our brand-new Canon EOS R6! We recently bought a Canon EOS R6 in addition to our older Canon EOS 5D Mark III, as it has some neat features that we urgently wanted to … Continue reading

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Obfuscate Your Code NOW! – The Two Minutes Tuesday 005

Hey guys! Assignments within expressions are a great idea if you want to be the only person EVER able to read your code! CU!

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JAX-RS Done Right! (VIII. – Advanced Parameter Topics)

Hey guys! How’s it going? In today’s episode of “JAX-RS Done Right!” we will look into more advanced parameter topics that help us to make our code look much cleaner and support separation of concerns. With the help of a … Continue reading

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You lose out Performance! – The Two Minutes Tuesday 004

Hey guys! You’re still using years-old Java versions? Then you definitively lose out performance! CU!

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Had a great shooting today

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