Geertjan Wielenga

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

282 views

99 articles

496,862 views

Jul 14, 2024 5,050 views

DORA significantly impacts investments by the financial sector in Java, because of its emphasis on secure and resilient software.

May 21, 2024 4,900 views

On Tuesday, May 14th, the Foojay Podcast went live at the JCON conference in Cologne, Germany, to talk with speakers and visitors about all …

Geertjan Wielenga May 13, 2024 6,129 views

Azul is planning to issue an Oracle "alternatives" Report in late July, and would like your help to complete the survey.

Geertjan Wielenga Mar 11, 2024 3,965 views

Uber Tech is partnering with Java User Group Amsterdam to host their first mini conference with Foojay.io.

Geertjan Wielenga Jan 29, 2024 4,604 views

Spend time with OpenJDK enthusiasts in Bier Central in Brussels on Saturday, 3 February from 18.30.

Geertjan Wielenga Nov 13, 2023 3,496 views

Last week at JFall 2023, was a high point in the evolution of Foojay.io, the place for Friends Of OpenJDK.

Geertjan Wielenga Sep 16, 2023 4,530 views

Shai Almog's "Java Basics" more than lives up to its title. And how could it be otherwise, with its highly Java driven and opinionated …

Geertjan Wielenga Aug 1, 2023 6,456 views

Learn how to migrate to OpenJDK and get tips on how to select the right Java partner to assist with your migration and provide suppoer.

Geertjan Wielenga Jul 3, 2023 4,800 views

Great big overview of Foojay.io, plus its subprojects and related insights and statistics, as well as upcoming plans.

Geertjan Wielenga May 23, 2023 6,296 views

Do you ever wonder what OpenJDK distributions and what Java versions your peers are using? What Java versions?

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!
Read more
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.
Register here
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.
Register Now
Sponsored Content
Cut Code Review Time & Bugs in Half. Instantly.
Supercharge your team to ship faster with the most advanced AI code reviews.
Get Started!
Sponsored Content
Free eBook: Sustainability for Java Developers
Towards an understanding of sustainable software development, written by and for the friends of OpenJDK
Get it on Leanpub Read more
Your GPU spend is optimized. Your JVM probably isn’t.
Hidden JVM inefficiencies - GC pauses, conservative JIT, slow warm-up - are quietly draining your AI infrastructure's performance and cloud spend. This guide shows how to eliminate that drag and scale with fewer nodes.
Download Now
Sponsored Content