Roy van Rijn @royvanrijn Twitter profile

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Roy van Rijn

2 years

👨🏻‍💼 “You’ve spend quite a lot of time on this piece of code…” 👨‍💻 “I did.” 👨🏻‍💼 “But… it looks very simple… almost trivial.” 👨‍💻 “Exactly, thanks, that’s why it took so long.”

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Roy van Rijn

@royvanrijn

2 years

💻 Developers: "I hate meetings" "Just let me code, I'll skip this one" "Sigh, not *another* meeting" ☹️ Also developers: "This project has no clear vision." "Management has no idea what's going on."

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Roy van Rijn

@royvanrijn

1 year

If you know what this is: SET BLASTER=A220 I7 D1 H5 T6 ... it might be a good time to start taking daily supplements and consider a check-up at the doctor.

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Roy van Rijn

@royvanrijn

2 years

“As an agile coach, what is it that you do in a project?” “Well…”

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Roy van Rijn

@royvanrijn

2 months

@MatthewDR @elonmusk That is the opposite of how crumple zones work; If you’re in the Tesla, it’s like hitting a brick wall; if you’re in the Ram, the wall gives in and absorbs the impact. Sure, insurance will need to help buy a new vehicle; but at least I’ll be okay.

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Roy van Rijn

@royvanrijn

2 years

I've been programming for over 20 years, and I still don't understand why someone would prefer a dynamically typed language.

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Roy van Rijn

@royvanrijn

1 year

Today ChatGPT turned a flat JSON object into 12 tables incl relations and 10 type enums, turned that entire DDL into JPA entities; and made all the CRUD Spring Boot endpoints, in a couple of hours. That could also have been a week of typing…

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Roy van Rijn

@royvanrijn

4 years

@CCXIII @tedneward I propose honering both, by having statues of multiple famous conferderacy 'heroes' kissing.

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Roy van Rijn

@royvanrijn

10 years

Who says mandatory fire extinguishers in an office look ugly? Adopt it into the design: http://t.co/169e8rY7ph #brilliant

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Roy van Rijn

@royvanrijn

2 months

@MattP1Gallagher One week ago almost everybody put Haas at the back, and now they’re both in Q2 🥳

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Roy van Rijn

@royvanrijn

3 months

@willobri The Dutch Federal Reserve has gold bouillons.

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Roy van Rijn

@royvanrijn

4 years

Everybody is tweeting about how good that black Mercedes looks, but what about the pink Mercedes....? #FP2 #AustrianGP @MercedesAMGF1 @RacingPointF1

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Roy van Rijn

@royvanrijn

2 years

Everybody’s scared about log4j and other dependencies. Can’t wait until they learn about all the Docker images we’re just blindly downloading and running! 🙁

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Roy van Rijn

@royvanrijn

5 years

Checklist for 2019: 1) Have you tried Quarkus (or GraalVM)? 2) Have you tried Java 12? 3) Have you been bitching about YAML recently? 4) Have you said: "Microservices might have been a mistake"? Congratulations, you are a modern 2019 Java Guru/Rockstar/Ninja!

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Roy van Rijn

@royvanrijn

7 months

@MattP1Gallagher Slippery track, little practice, high deg and an entertaining sprint race. FIA:

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Roy van Rijn

@royvanrijn

1 year

@FollowAndretti @Cadillac @fia @F1 Yeah!

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Roy van Rijn

@royvanrijn

3 years

@shanselman This image changed everything for me.

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Roy van Rijn

@royvanrijn

2 years

If any of my Ukrainian 🇺🇦 followers wants to (temporarily) rebuild their lives in the Netherlands 🇳🇱 and need help getting a (Java) programming job; reach out and I’ll try to help wherever I can.

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Roy van Rijn

@royvanrijn

5 years

Gemeente Oss denkt aan de mensen zonder internet... 😂🤦🏼‍♂️ /cc @AlexanderNL

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Roy van Rijn

@royvanrijn

7 years

2017 reminder: This is how the imposter syndrome works, now find an open call for papers and spread your knowledge!

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Roy van Rijn

@royvanrijn

5 years

I’ve become old. I’ve become wary of new technology and new frameworks. I’ve become the grumpy fellow in the back who says. after someone demos GraphQL: “Isn’t that just like SQL queries from the front end.... like PHP?” Is this what is feels like to be a “senior developer”?

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Roy van Rijn

@royvanrijn

3 years

If only there was an easier way to calculate this…

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Roy van Rijn

@royvanrijn

7 months

@erwindeg @karunchandhok A shame that they’ve mandated it, I’d say: let them risk it 😅 hero or zero.

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Roy van Rijn

@royvanrijn

2 years

@smotus @lizardbill I’ve seen people begging for a vaccine in the hospitals and doctors telling them it’s too late now, it doesn’t work that way; while their bodies are slowly losing the fight. If you haven’t seen people regretting not getting the vaccine you’ve been looking in the wrong place.

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Roy van Rijn

@royvanrijn

2 months

@burkov Managers: You’ll become even more important, soon we no longer need expensive developers, AI will write the code. Developers: You’re so important, you’ll soon be able to work much more efficient, you no longer need to wait for testers etc, AI will generate them. But developers

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Roy van Rijn

@royvanrijn

2 years

The more IT projects I see, the more I’m amazed anything in this world actually works.

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Roy van Rijn

@royvanrijn

6 months

@CrystalRacing Jos had the amazing capability to hit everyone and everything… except the apex 😉 I’m pretty sure Montoya paid Ocon for revenge… same track even.

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Roy van Rijn

@royvanrijn

4 years

💡Programming/IDE idea: An editor that runs test coverage ✅ and displays all uncovered code in Comic Sans instead of the usual font.

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Roy van Rijn

@royvanrijn

4 months

I know it's just a number... but this number is below 3 seconds!

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Roy van Rijn

@royvanrijn

5 months

@jakecodes I spend it with a typed language 👌🏼

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Roy van Rijn

@royvanrijn

1 month

@lenaspiastri Lewis, it’s hamfer time… 😖

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Roy van Rijn

@royvanrijn

1 year

Fun use-case to implement, I love the aesthetics of Java's switch expression.

Jeroen Frijters

@JeroenFrijters

1 year

The Dutch government was forced to release the source code of their DigiD digital authentication iOS app. It is written in C#.

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Roy van Rijn

@royvanrijn

9 months

@catalinmpit Isn’t that just part of our job? Collaborating, discussing, brainstorming, learning, with users, clients and peers. I don’t want to be a 100% code-typing machine with everything pre-thought out… especially since *that* part is now easy to automate and accelerate with AI.

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Roy van Rijn

@royvanrijn

7 months

It’s always the same framework that breaks… Why are people still using it 😣 it’s an extra dependency you don’t really need.

[BUG] lombok 1.8.26 incompatible with JDK21 · Issue #3393 · projectlombok/lombok

Describe the bug Lombok 1.8.26 does not work with JDK21 (EA build 16) To Reproduce import lombok.Data; @Data public class Person { private String name; } $ javac -version javac 21-ea $ javac -cp lo...

github.com

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Roy van Rijn

@royvanrijn

7 years

This week I've developed a fun little Maven and Sonar plugin to calculate how much outdated dependency debt your project has... shocking!

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Roy van Rijn

@royvanrijn

1 month

@TwommoF1 Turns out it was actually Sargeant who forgot to pack the spare chassis, so it's fair I guess.

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Roy van Rijn

@royvanrijn

3 months

@wtf1official Everybody talking about Lewis; but how is Carlos this morning?

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Roy van Rijn

@royvanrijn

1 year

@ScarbsTech @BellRacingHQ @ompracing That's better than what they had 1966...

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Roy van Rijn

@royvanrijn

1 year

This might not look groundbreaking, but look at “state of the art” image generation from two years ago and the images from Midjourney v5 right now. The coming years are going to be incredible…

Victor M

@victormustar

1 year

I just made my own Star Wars clip using AI (text-to-video)!

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Roy van Rijn

@royvanrijn

4 years

@tregoning @MaritvanDijk77 Pianist: “How many notes have you played?” Painter: “How many strokes have you done while painting?” Cook: “So, you’re a chef, how many times have you stirred a pan?” Carpenter: “How many nails have you used?” ...

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Roy van Rijn

@royvanrijn

4 months

Using Unsafe in Java... #1BRC

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Roy van Rijn

@royvanrijn

3 months

@MercedesAMGF1 @LewisHamilton Nothing to see here... 👀

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Roy van Rijn

@royvanrijn

8 years

Wait, what?!

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Roy van Rijn

@royvanrijn

8 months

@bencoates1 Lewis Hamilton Age: 38 Number of races won: 103 Annual base salary: €35 million Estimated earnings in 16 seasons: >€500 million Years lived in the Netherlands: 0 Taxes paid in the Netherlands: 0 What the hell Lewis.

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Roy van Rijn

@royvanrijn

1 year

We've all seen Jupyter Notebooks that allow you to run/edit Python code in the browser... Have you tried Java Notebooks? 🤩

Introduction to Java Notebooks

Java Notebook is a new and exciting way to explore the Java programming language. It works a lot like Jupyter Notebooks.Notebooks are a c...

www.royvanrijn.com

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Roy van Rijn

@royvanrijn

4 years

@mattjones0111 Yeah, see the link I posted, it is EMI () and there is a known issue: "When people stand or sit on gas lift chairs, they can generate an EMI spike which is picked up on the video cables, causing a loss of sync."

Electromagnetic interference - Wikipedia

en.wikipedia.org

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Roy van Rijn

@royvanrijn

6 years

Use @graalvm to turn your Java code into a native executable... and finally turn that executable into the smallest possible @Docker image:

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Roy van Rijn

@royvanrijn

2 years

Tourists film a glacier brake off near the Juuku Gorge (in Kyrgyzstan) leaving two people in the hospital. So scary!

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Roy van Rijn

@royvanrijn

6 years

Goodmorning Europeans, do you know what day it is today? It is Java 11 release day! So run to your employer and demand some research and upgrade time because Java 8 is getting really outdated by now.

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Roy van Rijn

@royvanrijn

4 years

"Select all traffic lights to show you are a human, computers are unable to do this" ... "Please buy our self-driving cars, they are perfectly safe" 🤔

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Roy van Rijn

@royvanrijn

2 months

@chainbear We are checking? Everything sounds like a question…

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Roy van Rijn

@royvanrijn

4 years

@vermicelli @CCXIII @tedneward Of course I was not really proposing doing that; it was a joke. This guy would be rich though:

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Roy van Rijn

@royvanrijn

6 months

@wbuxtonofficial I just see this…

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Roy van Rijn

@royvanrijn

2 months

@MattP1Gallagher They can just turn it into a weekly sitcom 🤷🏻‍♂️

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Roy van Rijn

@royvanrijn

5 months

“Welcome to the dev team, let me quickly show you how to get our project up and running locally”

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Roy van Rijn

@royvanrijn

5 years

When something troubles you, write. - Writing therapy In my case: the worst public speaking experience I had, just last week:

My worst public speaking experience...

Last week I was invited to the Rabobank (a Dutch bank), where the bank and the Utrecht JUG hosted a small two day conference.The first da...

www.royvanrijn.com

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Roy van Rijn

@royvanrijn

6 years

@ChrisBrosnahan @hendrikEbbers I came across this in the zoo the other day... (plot for a new Disney movie with unlikely friends?)

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Roy van Rijn

@royvanrijn

4 months

Submitted the most important improvement yet of my #1BRC submission. Let me bring you the gift of… comments.

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Roy van Rijn

@royvanrijn

3 years

@NathanBLawrence @TRenner_ Someone has to mention Herbert here

Kyle

@kylewendland

3 years

Herbert the vacuum seems a little dramatic

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Roy van Rijn

@royvanrijn

2 years

Wow, spend about an hour trying to reproduce Log4Shell (or Leak4j) and it was very easy to get this working in Spring Boot with my own malicious mock LDAP server. Scary.

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Roy van Rijn

@royvanrijn

3 years

Dear @netflix , please make that @CryptoDadsNFT show. I made an intro for you....

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Roy van Rijn

@royvanrijn

4 years

@EsraaMHelmy @techgirl1908

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Roy van Rijn

@royvanrijn

2 years

Nice Jenga tower save…

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Roy van Rijn

@royvanrijn

11 months

@TomP1Bellingham Max’s last sector….

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@royvanrijn

6 months

@satyanadella Odd statement and timing 👀 why does this kind of give me the creeps?

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Roy van Rijn

@royvanrijn

5 years

I'd love to read a book or see a conference talk titled: "How to become an experienced developer without turning into a sour grumpy old whiner that complains that everything will fail whatever we try."

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Roy van Rijn

@royvanrijn

5 years

Honored to be part of the @Java_Champions group🙏🏻 thanks to everybody being there for me, helping me grow as a professional and as a person and supporting me in helping the @Java community! ❤️

Java Champions

@Java_Champions

5 years

Please join us in welcoming new Java Champions @mesirii @BethanKP @viktorklang @royvanrijn Congratulations to all of you and thank you so much for your commitment to your @java craft and to the community

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Roy van Rijn

@royvanrijn

1 year

@emollick RCI might be even better than chain of thought: With RCI you (recursively) ask ChatGPT to check its own answer and improve, with prompts like: “Review the previous answer and find problems with the answer” and than “Based on the problems, improve it”

Language Models can Solve Computer Tasks

Agents capable of carrying out general tasks on a computer can improve efficiency and productivity by automating repetitive tasks and assisting in complex problem-solving. Ideally, such agents...

arxiv.org

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Roy van Rijn

@royvanrijn

2 years

@ellle_em Twitter being Twitter…

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Roy van Rijn

@royvanrijn

4 years

This morning my sleepy head entered the metro in Rotterdam and I noticed this cute couple... and he’s wearing a Java jacket!? I have so many questions now I wish I had asked.... but didn’t 😟 #Java #SeniorDeveloper

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Roy van Rijn

@royvanrijn

6 years

Finally, I managed to create a fully functional microservice and compiled it to native code using GraalVM (using SparkJava, Dagger 2, Hibernate, Oracle JDBC). Read the blogpost:

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Roy van Rijn

@royvanrijn

4 years

My son (5yo) just started playing soccer and this weekend he scored his first penalty. I’m dying 🤣

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@royvanrijn

3 months

@IroncladDev Only 4chan can start a post with one line of Java code which won’t compile… names can’t start with a number 😅

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Roy van Rijn

@royvanrijn

4 years

I'm pretty impressed by the range btw, jumping on the chair that final time, 7-8 meters 🤣

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@royvanrijn

3 months

Not within the 10 second limit, but it's small... #1BRC

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Roy van Rijn

@royvanrijn

8 months

@zeg_eens_aad 🤓

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Roy van Rijn

@royvanrijn

1 year

@GlebReys And *no* Google yet, I usually got these spells by word of mouth, trial and error. "A friend got this HIGHMEM.SYS file we can try, it's so cool, it's on this floppy I got here, lets try it"

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@royvanrijn

1 year

@RhondaAhimsa @buitengebieden Water doesn’t curve

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Roy van Rijn

@royvanrijn

2 years

@chainbear They’ll just have to “Gene Haas” him into the picture 🤣

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Roy van Rijn

@royvanrijn

7 years

We've open sourced the code of our project dependency version debt Maven and SonarQube plugin. Give it a try:

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@royvanrijn

5 months

@DewEnjoyer

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Roy van Rijn

@royvanrijn

4 years

Not sure why the answer was rejected... it seems to me this student is ready for the real world!

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@royvanrijn

1 month

@TwommoF1 It was probably his biggest chance to out-qualify Albon...

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Roy van Rijn

@royvanrijn

4 years

I made a joke yesterday during our daily Scrum meeting, it was standup comedy.

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Roy van Rijn

@royvanrijn

6 years

Sometimes you suddenly realize you've got a problem; we went from a single 1GB memory backend JEE app to 30x 450MB Docker containers... how on earth did we let that happen? What is using all that memory and also CPU?

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Roy van Rijn

@royvanrijn

6 months

@autosport Shortcut 😅

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@royvanrijn

2 years

@Dutchtica The Dutch: When we have old bread, we make our own variation on French toast. Others: Sounds interesting Dutch: We drench it in egg, cinnamon and vanilla sugar and bake in lots of butter. Others: That sounds amazing, what is it called? Dutch: Wallowing bitches. 🤨

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Roy van Rijn

@royvanrijn

10 months

I enjoyed the first Breaking Bad spin-off about the lawyer Saul Goodman; but this new series about Mike Ehrmantraut taking on the Russians is amazing.

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Roy van Rijn

@royvanrijn

2 years

This Java application puzzles me, the heap bounces between 400-600 MiB, but the total size is maxed out at 3.49 GiB; what takes up this entire space? How to best analyse this? JFR doesn't give too much insight...

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Roy van Rijn

@royvanrijn

3 months

I've submitted a paper to @DevoxxUK about cryptography and received an invitation to speak, but... I just replied I'd rather speak about all the amazing things we did during the #1BRC challenge! I've received so many requests about this, diving into all the tricks. 🤞🏼

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@royvanrijn

2 years

@wtf1official It’ll be okay, Russell made a PowerPoint and it going to race control now.

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@royvanrijn

1 month

@ScarbsTech @mdm_designs Can you imagine this happening with a crash like the one @RGrosjean had 😱

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@royvanrijn

3 years

Told a junior programmer these are Agile Manifesto principles: 1) Stop, collaborate and listen. 2) Anything less than the best is a felony. 3) Love it or leave it. You better gain way. 4) If there was a problem, I’ll solve it.

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Roy van Rijn

@royvanrijn

6 years

"I’ve been programming for 15 years now. Recently our industry’s lack of care for efficiency, simplicity, and excellence started really getting to me, to the point of me getting depressed by my own career and the IT in general." ->

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@royvanrijn

10 months

@TomP1Bellingham Just do it, took my son to Spa/F1 multiple times 🥰 and like you already mentioned: make sure you have proper ear protection, over-ear for kids.

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@royvanrijn

5 years

Sometimes the most obvious improvements are only obvious after someone else makes them: JEP: NPE's in Java that explain which object was null

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@royvanrijn

4 years

Once this pandemic is over and everything returns back to normal, can we keep this one thing? If you’re not feeling well, just stay at home... It doesn’t show “toughness” or character to come to work while coughing or with a headache.

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@royvanrijn

2 years

@GKlijs A developer that doesn’t think about the business and maintainability isn’t a very good developer IMHO. Typing still exists, object instances still have limits, they are just invisible.

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@royvanrijn

1 year

@chadmontplaisir “Initially, IRQ 7 was a common choice for the use of a sound card, but later IRQ 5 was used when it was found that IRQ 7 would interfere with the printer port (LPT1).” Src:

Interrupt request - Wikipedia

en.m.wikipedia.org

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