Geertjan Wielenga

Geertjan is an open source and Java enthusiast, Java Champion, Apache Member, and leader of the Amsterdam Java User Group.

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99 articles

496,862 views

Geertjan Wielenga May 22, 2023 2,656 views

"Java and the Java community are what brought me to this role, but my focus is now on Cloud cost, budget, and ideas for efficiency."

Geertjan Wielenga May 15, 2023 2,030 views

"Wouldn’t it be great to use a Java Virtual Machine (JVM) to be 30% more performant? That is a win for both Engineering and Finance."

Geertjan Wielenga Feb 6, 2023 5,173 views

"What if Simon Ritter's keynote at FOSDEM entitled 'After Nearly 30 Years, How Is Java So Popular?' ends up being held... in an empty room?"

Geertjan Wielenga Jan 31, 2023 2,837 views

Following from the first part in this series, here is the next, from speakers who will be in the Foojay room at FOSDEM, Sunday, 5 February.

Jan 23, 2023 5,359 views

In this podcast, we are talking to some of the key people working on different IDEs, Integrated Development Environments.

Geertjan Wielenga Jan 20, 2023 3,276 views

FOSDEM is around the corner and a group of great speakers is lined up to talk about the OpenJDK -- see what they predict for 2023!

Geertjan Wielenga Jan 19, 2023 4,646 views

On from good times in 2022 and 2021, we have a really great schedule with inspiring speakers for FOSDEM in Brussels, on Sunday, February 5!

Geertjan Wielenga Nov 22, 2022 4,601 views

The upcoming FOSDEM 2023, 5 February 2023, will be live and everything will be in person, submit to the "Friends Of OpenJDK devroom"!

Oct 24, 2022 7,346 views

Let's look back and what has happened on Foojay during the last 2,5 years and talk to some of the people behind the project.

Geertjan Wielenga Sep 20, 2022 8,115 views

The Friends Of OpenJDK community has put together a number of resources, and more coming in the coming weeks!

Welcome to the new Foojay!
The same content from amazing Java developers, now in a new home. Foojay has been rebuilt from the ground up!
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OCX Webinar Week: a first look at OCX27
Five days of live webinars on 2-6 November on AI agents, Jakarta EE, code signing, embedded systems and more. Join live for €50 off an OCX27 early bird ticket.
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JDK 27: Post-Quantum Java Arrives
Join Simon Ritter, Deputy CTO at Azul, on Oct 27 at 10:00 AM ET | 14:00 GMT | 19:30 IST for what's new in JDK 27, including post-quantum TLS.
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Your GPU spend is optimized. Your JVM probably isn’t.
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