Geertjan Wielenga

Senior Director of Open Source Projects @AzulSystems @foojayio ( Amsterdam Java User Group, @TheASF @NetBeans PMC Chair, and @Java_Champions.

[Geertjan Wielenga @GeertjanW]

Thanks @heinzkabutz for making this evening’s @AmsterdamJug meetup even more really special!

[BellSoft @bellsoftware]

🚨 Oracle Java licensing changes caught many companies off guard.

But here’s the important part:

You have alternatives to Oracle Java / Oracle JDK 🧵👇

[BellSoft @bellsoftware]

How to Foster a Thriving Java Community https://t.co/y78pPsXMZX

[BellSoft @bellsoftware]

🔥 We’re live now, come join the conversation! @cat_edelveis + @your_javaguy on what actually makes #Java communities grow and stay healthy: https://t.co/Pj8eKpCA5D

[BellSoft @bellsoftware]

In #Java26, JEP 504 finally removes the Applet API. java.applet.Applet, javax.swing.JApplet, etc. are gone. If you still extend Applet/JApplet, you’ll need an older JDK or a real desktop UI (AWT/Swing/JavaFX). Minimal repro that breaks on 26 👇

[Azul @AzulSystems]

Join us next week for 8 Java Predictions Every Enterprise Needs to Know for 2026. These insights are essential for CIOs, CTOs, and tech leaders planning for the future.

Don't miss out! Check out the details here 👉 https://t.co/nriiVH9zYW

#Java #TechEvents #AI

[Geertjan Wielenga @GeertjanW]

@snipershady_ Provide a pr and it will be fixed. :-)

[JAVAPRO @JAVAPROmagazin]

🚀 It’s starting now! We’re live at #JCONGenAI2025 Hamburg – join us in Floor 1, Rooms Sao Paulo 🎉

Get ready for a hands-on #GenAI learning experience with the #Java community — real-world use cases, expert talks, and plenty of inspiration!

https://t.co/UBZIpnVpxC

#AI

[Victor Rentea @VictorRentea]

My 3 talks at @Devoxx Belgium were rated among the first 5 best of the week (by now). You were such an amazing crowd❤️! Have a wonderful rest of the conference! #devoxx

[Ko Turk @KoTurk77]

The Call for Papers for Voxxed Days Amsterdam 2026 is officially OPEN! 😎

Do you have the the knowledge, experience or have an idea to share to the #Java community?

This is your chance!

📅 Date: April 1–2, 2026

📌 Submit your proposal:
https://t.co/RHpDTJepJi

[Foojay.io @foojayio]

Fourteen days have passed, and it is time for @miragemiko @OpenValue to present on Foojay a fresh collection of readings that could influence developments in the field of #artificial #intelligence!
https://t.co/lRggxjUNMw

[AmsterdamJUG @AmsterdamJug]

At #AmsterdamJUG, an excellent time with @prpatel @AzulSystems @TheDanicaFine @Snowflake @KoTurk77 @VoxxedAmsterdam Simone Romani @ingnl! #nameyoursprintafterafamousdeveloper

[AmsterdamJUG @AmsterdamJug]

At #AmsterdamJUG, @TheDanicaFine @Snowflake learns that the SVB bank in the Netherlands names its sprints after, amongst others, famous women developers. :-)

[Mary Grygleski @mgrygles]

@vilojona @sebi2706 @arnokoehler @GeertjanW @starbuxman @prpatel @foojayio @antonarhipov @daviddryparry @simas_ch @BrianVerm @svenpet @christzolov Thank you @arnokoehler 👍 What a fantastic conference by an amazing group of organizers!! Thanks again for having me ♥️

[Foojay.io @foojayio]

An excellent 1st edition of @Ai4Devs yesterday in Amsterdam, thanks to @JoostKW @vilojona and many many others, including @starbuxman @prpatel!

[AI4Devs @Ai4Devs]

Amazing post event dinner ♥️🥰🥰 the atmosphere,.the vibe (not coding), the conversations is amazing .
#ai4devs #ai #conference

[Mary Grygleski @mgrygles]

Amazing conference and this is only the first edition!! Thank you so much for having me @Ai4Devs @vilojona @GeertjanW @arnokoehler Joost Kaan-Wagenaar. I am looking forward to more amazing events in the coming years!!

[JavaMUG @JavaMUG]

JavaMUG is meeting tomorrow, but it's a happy hour at @LegacyFoodHall.

We are meeting at 5:30pm, on the 2nd Floor at the Good View Bar.

Come find me (@erikweibust) and @prpatel enjoying a beverage, talking Java, AI and our favorite beverage.

More info on our Meetup or site!

[Victor Rentea @VictorRentea]

Meet me at @picnic for the next @AmsterdamJug meetup on the evening of September 4 in Amsterdam for a tour of the top REST API design pitfalls, collected with care from over 150 companies. Bring your friends (and your stories) to this after-hours brainstorm.

[Kadi (Grigg) McKean @KadiGrigg]

@TCoolsIT dropping knowledge tonight at the @AmsterdamJug #community