Tom Cools
@tomcools.be
DevRel @Timefold | Conference (Keynote) Speaker 🗣️ | #Java Champion | @BeJUG Organizer | Kind of a weird guy 😅
Pinned
Tom Cools
@tomcools.be
· Nov 28
Suddenly there is a 1000 of you following me! Welcome 😁
I'm Tom, geeky guy from Belgium, very passionate about programming with a heavy focus on
#java
technologies. I post about software development, public speaking and career.
Glad to have you here! <3
I'm Tom, geeky guy from Belgium, very passionate about programming with a heavy focus on
#java
technologies. I post about software development, public speaking and career.
Glad to have you here! <3
Reposted by Tom Cools
Hey Belgian Java devs, Amsterdam is calling! ☎️
Voxxed Days Amsterdam, April 1–2, 2026
Now with BeJUG as an ambassador, making it your Java community event too! 2 days of code, talks & networking.
Don’t miss it → amsterdam.voxxeddays.com#ticket
Give BeJUG a follow: @bejug.bsky.social
#community
Voxxed Days Amsterdam, April 1–2, 2026
Now with BeJUG as an ambassador, making it your Java community event too! 2 days of code, talks & networking.
Don’t miss it → amsterdam.voxxeddays.com#ticket
Give BeJUG a follow: @bejug.bsky.social
#community
October 23, 2025 at 7:20 AM
Hey Belgian Java devs, Amsterdam is calling! ☎️
Voxxed Days Amsterdam, April 1–2, 2026
Now with BeJUG as an ambassador, making it your Java community event too! 2 days of code, talks & networking.
Don’t miss it → amsterdam.voxxeddays.com#ticket
Give BeJUG a follow: @bejug.bsky.social
#community
Voxxed Days Amsterdam, April 1–2, 2026
Now with BeJUG as an ambassador, making it your Java community event too! 2 days of code, talks & networking.
Don’t miss it → amsterdam.voxxeddays.com#ticket
Give BeJUG a follow: @bejug.bsky.social
#community
One of the coolest things about our @bejug.bsky.social community? Everyone can participate and help out. Check out this amazing banner @lomagnette.bsky.social made!
October 13, 2025 at 9:52 AM
One of the coolest things about our @bejug.bsky.social community? Everyone can participate and help out. Check out this amazing banner @lomagnette.bsky.social made!
A @kevlin.bsky.social during my informal #speakertour after the @devoxx.com conference! Seen on the Meir shopping street.
Spotted by @lomagnette.bsky.social, picture by @hanneslowette.net. 😊
Spotted by @lomagnette.bsky.social, picture by @hanneslowette.net. 😊
October 10, 2025 at 7:29 PM
A @kevlin.bsky.social during my informal #speakertour after the @devoxx.com conference! Seen on the Meir shopping street.
Spotted by @lomagnette.bsky.social, picture by @hanneslowette.net. 😊
Spotted by @lomagnette.bsky.social, picture by @hanneslowette.net. 😊
First talk of my #devoxx, @mydeveloperplanet.com talking about...what else... AI agents.
October 6, 2025 at 7:55 AM
First talk of my #devoxx, @mydeveloperplanet.com talking about...what else... AI agents.
Been reviewing submissions for @jfokus.se and while I've seen a lot of great talks pass by, I can't shake the feeling there are some viewpoints missing. 😉
So don't hold back your quirky, silly, weird or serious ideas for talks and submit them anyway! sessionize.com/jfokus-2026.
So don't hold back your quirky, silly, weird or serious ideas for talks and submit them anyway! sessionize.com/jfokus-2026.
Jfokus 2026: Call for Speakers
Jfokus is a general topics conference for a developer and tech audience. Jfokus conference, set to take place on February 2-4, 2026, at Stockholm Wate...
sessionize.com
September 21, 2025 at 7:43 PM
Been reviewing submissions for @jfokus.se and while I've seen a lot of great talks pass by, I can't shake the feeling there are some viewpoints missing. 😉
So don't hold back your quirky, silly, weird or serious ideas for talks and submit them anyway! sessionize.com/jfokus-2026.
So don't hold back your quirky, silly, weird or serious ideas for talks and submit them anyway! sessionize.com/jfokus-2026.
# Meetup telling me interesting group in Belgium no longer has an organizer.
Me:
Me:
September 9, 2025 at 12:16 PM
# Meetup telling me interesting group in Belgium no longer has an organizer.
Me:
Me:
Not me FOMO submitting to #jfall on the very last day 🤣.
If you haven't yet, you got a couple more hours to do so! It's a great conference!
If you haven't yet, you got a couple more hours to do so! It's a great conference!
September 1, 2025 at 7:14 AM
Not me FOMO submitting to #jfall on the very last day 🤣.
If you haven't yet, you got a couple more hours to do so! It's a great conference!
If you haven't yet, you got a couple more hours to do so! It's a great conference!
Reposted by Tom Cools
Tom Cools - DevRel @Timefold | Conference (Keynote) Speaker 🗣️ | #Java Champion | @BeJUG Organizer
@tomcools.be
@tomcools.be
August 22, 2025 at 11:51 AM
Tom Cools - DevRel @Timefold | Conference (Keynote) Speaker 🗣️ | #Java Champion | @BeJUG Organizer
@tomcools.be
@tomcools.be
45 more minutes folks! 😅
August 18, 2025 at 6:13 AM
45 more minutes folks! 😅
Reposted by Tom Cools
Amazing news 💥!!!
JavaOne returns in March 2026 ❣️
Checkout all its details and save the date 🎉!!!
JavaOne returns in March 2026 ❣️
Checkout all its details and save the date 🎉!!!
#Java peers, #JavaOne IS BACK AGAIN IN 2026 (March 17-19). Read our blog to learn more and sign up w/interest if you want to attend, speak, or sponsor: social.ora.cl/6011fdkbH
August 4, 2025 at 4:34 PM
Amazing news 💥!!!
JavaOne returns in March 2026 ❣️
Checkout all its details and save the date 🎉!!!
JavaOne returns in March 2026 ❣️
Checkout all its details and save the date 🎉!!!
Reposted by Tom Cools
Time for our yearly stop at Oniryx 🤩. We got great food and drinks. Weather is epic and we got 2 cool talks lined up! 🤩
Let's Go!
Let's Go!
June 19, 2025 at 5:17 PM
Time for our yearly stop at Oniryx 🤩. We got great food and drinks. Weather is epic and we got 2 cool talks lined up! 🤩
Let's Go!
Let's Go!
Companies use the word "revolution" a lot to hype up their services.
"Revolution" also means (in physics): One revolution: one full turn/360 degrees .
So when you see the word, ask yourself: "is this really something new, or is this just a short spin before going the same direction as before".
"Revolution" also means (in physics): One revolution: one full turn/360 degrees .
So when you see the word, ask yourself: "is this really something new, or is this just a short spin before going the same direction as before".
June 19, 2025 at 7:07 AM
Companies use the word "revolution" a lot to hype up their services.
"Revolution" also means (in physics): One revolution: one full turn/360 degrees .
So when you see the word, ask yourself: "is this really something new, or is this just a short spin before going the same direction as before".
"Revolution" also means (in physics): One revolution: one full turn/360 degrees .
So when you see the word, ask yourself: "is this really something new, or is this just a short spin before going the same direction as before".
Reposted by Tom Cools
☀️ Great talks, tasty food, cold drinks, and an outdoor venue—what more could you want?
Join us on Thursday, June 19 for the next @bejug.bsky.social event!
We’re taking Java to the park for an evening of tech & chill. 🌳🍻
Spots are still available, grab yours now 👉 www.meetup.com/belgian-java...
Join us on Thursday, June 19 for the next @bejug.bsky.social event!
We’re taking Java to the park for an evening of tech & chill. 🌳🍻
Spots are still available, grab yours now 👉 www.meetup.com/belgian-java...
IntelliJ as a game engine + Wrapping up the Spring Boot 3.x generation, Thu, Jun 19, 2025, 6:00 PM | Meetup
Let's keep up the #java vibes! This time we're heading to **Oniryx**, in Gembloux, a yearly stop around this time of year! Thanks for hosting us again!
This time we have A
www.meetup.com
June 17, 2025 at 8:59 AM
☀️ Great talks, tasty food, cold drinks, and an outdoor venue—what more could you want?
Join us on Thursday, June 19 for the next @bejug.bsky.social event!
We’re taking Java to the park for an evening of tech & chill. 🌳🍻
Spots are still available, grab yours now 👉 www.meetup.com/belgian-java...
Join us on Thursday, June 19 for the next @bejug.bsky.social event!
We’re taking Java to the park for an evening of tech & chill. 🌳🍻
Spots are still available, grab yours now 👉 www.meetup.com/belgian-java...
Reposted by Tom Cools
Did you miss @tomcools.be Devoxx UK talk "LLMs can't optimise schedules, but AI can!" Watch it now and discover Timefold, a Java-based AI solver that excels at complex scheduling.
Session link - buff.ly/Oj040Ck
Session link - buff.ly/Oj040Ck
June 17, 2025 at 8:02 AM
Did you miss @tomcools.be Devoxx UK talk "LLMs can't optimise schedules, but AI can!" Watch it now and discover Timefold, a Java-based AI solver that excels at complex scheduling.
Session link - buff.ly/Oj040Ck
Session link - buff.ly/Oj040Ck
Reposted by Tom Cools
Still plenty of space for the last meetup before our Summer break! 😊
Alex is a top rated speaker at conferences like Devoxx, so we are honored to have him with us! 🤩
Alex is a top rated speaker at conferences like Devoxx, so we are honored to have him with us! 🤩
The #Java tour continues!
Next stop: @oniryx.be (Gembloux) – thanks for having us again! 🇧🇪
🕹️ @glycin.bsky.social will show how he turned IntelliJ into a game engine!
🎤 1 quicky slot still open! Want in?
👉 github.com/BeJUG/bejug....
@bejug.bsky.social #BeJUG
www.meetup.com/belgian-java...
Next stop: @oniryx.be (Gembloux) – thanks for having us again! 🇧🇪
🕹️ @glycin.bsky.social will show how he turned IntelliJ into a game engine!
🎤 1 quicky slot still open! Want in?
👉 github.com/BeJUG/bejug....
@bejug.bsky.social #BeJUG
www.meetup.com/belgian-java...
IntelliJ as a game engine + 1 more, Thu, Jun 19, 2025, 6:00 PM | Meetup
Let's keep up the #java vibes! This time we're heading to **Oniryx**, in Gembloux, a yearly stop around this time of year! Thanks for hosting us again!
This time we have A
www.meetup.com
June 10, 2025 at 5:12 PM
Still plenty of space for the last meetup before our Summer break! 😊
Alex is a top rated speaker at conferences like Devoxx, so we are honored to have him with us! 🤩
Alex is a top rated speaker at conferences like Devoxx, so we are honored to have him with us! 🤩
FYI, if you need to compare 2 objects in a #java test, do not manually compare all fields by calling the getters. Instead, do it with 1 line of AssertJ:
medium.com/@lucascalebe...
medium.com/@lucascalebe...
Simplify Your Java Tests with Recursive Comparison 🧪 🧼
In Java, writing tests often involves comparing objects to ensure they meet expected conditions. Typically, developers use assertions to…
medium.com
June 5, 2025 at 12:02 PM
FYI, if you need to compare 2 objects in a #java test, do not manually compare all fields by calling the getters. Instead, do it with 1 line of AssertJ:
medium.com/@lucascalebe...
medium.com/@lucascalebe...
Happy #jspring to those who celebrate 😊
Unfortunately, I can't be there this year, but I know all of you will have a great time in Utrecht!
@nljug.bsky.social #java
Unfortunately, I can't be there this year, but I know all of you will have a great time in Utrecht!
@nljug.bsky.social #java
June 5, 2025 at 5:10 AM
Happy #jspring to those who celebrate 😊
Unfortunately, I can't be there this year, but I know all of you will have a great time in Utrecht!
@nljug.bsky.social #java
Unfortunately, I can't be there this year, but I know all of you will have a great time in Utrecht!
@nljug.bsky.social #java
Reposted by Tom Cools
"Code is not an asset—it's a liability. Every line must be maintained, debugged, secured, and eventually replaced. The real asset is the business capability that code enables.
If AI makes writing code faster and cheaper, it's making it easier to create liability."
alonso.network/the-recurrin...
If AI makes writing code faster and cheaper, it's making it easier to create liability."
alonso.network/the-recurrin...
The Recurring Cycle of 'Developer Replacement' Hype
AI isn't replacing developers, it's transforming them. Just as NoCode created specialists and cloud turned sysadmins into DevOps engineers, AI elevates engineers from code writers to system architects...
alonso.network
June 3, 2025 at 9:24 AM
"Code is not an asset—it's a liability. Every line must be maintained, debugged, secured, and eventually replaced. The real asset is the business capability that code enables.
If AI makes writing code faster and cheaper, it's making it easier to create liability."
alonso.network/the-recurrin...
If AI makes writing code faster and cheaper, it's making it easier to create liability."
alonso.network/the-recurrin...
Reposted by Tom Cools
The #Java tour continues!
Next stop: @oniryx.be (Gembloux) – thanks for having us again! 🇧🇪
🕹️ @glycin.bsky.social will show how he turned IntelliJ into a game engine!
🎤 1 quicky slot still open! Want in?
👉 github.com/BeJUG/bejug....
@bejug.bsky.social #BeJUG
www.meetup.com/belgian-java...
Next stop: @oniryx.be (Gembloux) – thanks for having us again! 🇧🇪
🕹️ @glycin.bsky.social will show how he turned IntelliJ into a game engine!
🎤 1 quicky slot still open! Want in?
👉 github.com/BeJUG/bejug....
@bejug.bsky.social #BeJUG
www.meetup.com/belgian-java...
IntelliJ as a game engine + 1 more, Thu, Jun 19, 2025, 6:00 PM | Meetup
Let's keep up the #java vibes! This time we're heading to **Oniryx**, in Gembloux, a yearly stop around this time of year! Thanks for hosting us again!
This time we have A
www.meetup.com
June 2, 2025 at 7:02 AM
The #Java tour continues!
Next stop: @oniryx.be (Gembloux) – thanks for having us again! 🇧🇪
🕹️ @glycin.bsky.social will show how he turned IntelliJ into a game engine!
🎤 1 quicky slot still open! Want in?
👉 github.com/BeJUG/bejug....
@bejug.bsky.social #BeJUG
www.meetup.com/belgian-java...
Next stop: @oniryx.be (Gembloux) – thanks for having us again! 🇧🇪
🕹️ @glycin.bsky.social will show how he turned IntelliJ into a game engine!
🎤 1 quicky slot still open! Want in?
👉 github.com/BeJUG/bejug....
@bejug.bsky.social #BeJUG
www.meetup.com/belgian-java...
Here we go again! 🤩
The Devoxx Belgium 2025 CFP is now OPEN!
➡️https://dvbe25.cfp.dev
This year we’re zooming in on Java 25 & AI Agents🤖
Got insights, hacks, or bold ideas? Share them with the dev community at #Devoxx 🔥
➡️https://dvbe25.cfp.dev
This year we’re zooming in on Java 25 & AI Agents🤖
Got insights, hacks, or bold ideas? Share them with the dev community at #Devoxx 🔥
June 2, 2025 at 6:41 AM
Here we go again! 🤩
Good morning, yall! 😊
Traveling to Ghent for a 3 day team gathering with all our Timefold colleagues from around the world. 🤩 I'm super excited to sync up with everyone AFK and plot our direction for the coming period!
Let's GO! 🤘
Traveling to Ghent for a 3 day team gathering with all our Timefold colleagues from around the world. 🤩 I'm super excited to sync up with everyone AFK and plot our direction for the coming period!
Let's GO! 🤘
June 2, 2025 at 6:05 AM
Good morning, yall! 😊
Traveling to Ghent for a 3 day team gathering with all our Timefold colleagues from around the world. 🤩 I'm super excited to sync up with everyone AFK and plot our direction for the coming period!
Let's GO! 🤘
Traveling to Ghent for a 3 day team gathering with all our Timefold colleagues from around the world. 🤩 I'm super excited to sync up with everyone AFK and plot our direction for the coming period!
Let's GO! 🤘
Reposted by Tom Cools
From the decline of SEO to AI agents spinning up dynamic UIs... this month’s newsletter covers the shift to intent-based interfaces, BDD in the age of AI, upcoming events, and more 🧠✨🍳
The Future of UI is You
Imagine searching for concert tickets on Google and instead of getting links to various ticket sites, the result is a dynamic widget showing you the tickets, seat map, and a button to purchase. Or ima...
www.linkedin.com
June 1, 2025 at 5:20 PM
From the decline of SEO to AI agents spinning up dynamic UIs... this month’s newsletter covers the shift to intent-based interfaces, BDD in the age of AI, upcoming events, and more 🧠✨🍳
With CFPs opening up for the Autumn conference season, a nice reminder right here.
Submit the talk anyway! 😉
Submit the talk anyway! 😉
May 28, 2025 at 3:49 AM
With CFPs opening up for the Autumn conference season, a nice reminder right here.
Submit the talk anyway! 😉
Submit the talk anyway! 😉