Adoptium Summit is taking place virtually on Sep 29. Explore the breadth & depth of Adoptium tech, bringing together #Java devs, architects, contributors, adopters & orgs for tech talks, best practices, and real-world cases. Register here

Exploring the Breadth and Depth of Adoptium Technologies | The Eclipse Foundation

Adoptium Summit is a half day premier virtual conference.

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I had an absolutely wonderful day with Audrey Neveu, @mseckington.bsky.social, Dan Hardiker & @svenpet.bsky.social! Our kickoff for project codename "KimmiCon" was truly inspiring & we can't wait to share more about this new developer conference coming to London. Stay tuned for more updates!

"‘Honey, dishwasher’s finished.’ Is this a command telling you to do something, or an event? It’s a passive-aggressive event." - Victor Rentea Software architecture has the exact same problem. Here’s why confusing Commands and Events ruins your systems 🧵👇

Join us at the London Java Community meetup at Capital One on Wed 22 July from 6pm BST. Speakers: @mseckington.bsky.social - See It, Say It, Sort It: How To Be More Proactive Jack Gough - From Fleeticide To Recovery: When Your Auto-Scaling Policy Becomes Your Worst Enemy Sign up: bit.ly/3TlGBOl

Adoptium Summit is taking place virtually on Sep 29 Explore the breadth & depth of Adoptium tech, bringing together #Java devs, architects, contributors, adopters & orgs for tech talks, best practices, real-world cases Reg bit.ly/4phudea Talk bit.ly/4bId9IC #AdoptiumSummit26 #EclipseTemurin

Quick reminder, we have a @virtualjug.bsky.social LIVE session today with Victor Rentea 🗓️ July 9, 2026 | 4 PM UTC 🎟️ Free signup: luma.com/u1ifnmka If you can't make the LIVE session, it will be recorded and available on the vJUG YouTube channel - youtube.com/@virtualJUG

Top 10 Event-Driven Architecture Pitfalls by Victor Rentea · Luma

Join us for this fast-paced, high-energy session packed with 10 real-world production war stories from 150+ companies. Instead of dry slides or theoretical…

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Planning your conference schedule for September? IntelliJ IDEA Conf 2026 is a free virtual conference featuring speakers from Oracle, Docker, Confluent, Broadcom, AWS, JetBrains, and more. 👉 Register now: jb.gg/t06fej #IntelliJIDEAConf

Abraham Marín-Pérez, co-author of 'Continuous Delivery in Java', is working on a second edition & wants to ensure it meets developers' needs. Please help him by completing this short survey, which takes about 5-10 minutes - docs.google.com/forms/d/e/1F...

Continuous Delivery in Java - 2nd edition

Hi, I'm Abraham Marín Pérez, co-author of Continuous Delivery in Java (O'Reilly, 2018). I'm exploring a second edition and want to make sure it reflects what you actually need. This short survey takes...

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If there's a speaker you'd like to hear from, or a session or topic you'd like us to cover, send me a DM on the vJUG Slack - bit.ly/4gPH5WH. If you're interested in giving a session, please reach out on Slack too.

Join Virtual JUG on Slack

Slack is a new way to communicate with your team. It’s faster, better organized, and more secure than email.

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If you missed any @virtualjug.bsky.social sessions this year, you can catch up on YouTube - youtube.com/@virtualJUG On 9 July, Victor Rentea & @vanessaformicola.bsky.social will join us for: Top 10 Event-Driven Architecture Pitfalls. Be sure to sign up on Luma for full details - luma.com/u1ifnmka

In this week's episode of tech podcast Asynchronous and Unreliable, @hollycummins.com and I chat about Lightswitch Ops, operational efficiency, security, Cloud Native architectures and the unexpectedly emergent superpower of turning things off and on again

Abraham is exploring a second edition of Continuous Delivery in Java (O'Reilly, 2018). Help shape the book's content by completing this short survey bit.ly/3T8TFGD.

Continuous Delivery in Java - 2nd edition

Hi, I'm Abraham Marín Pérez, co-author of Continuous Delivery in Java (O'Reilly, 2018). I'm exploring a second edition and want to make sure it reflects what you actually need. This short survey takes...

bit.ly

What’s better than learning from the best Java experts in the world? Doing it alongside a global community of peers. Join us for the next vJUG live session with Victor Rentea & @vanessaformicola.bsky.social. Who will we see there? 👇 Save your seat: luma.com/u1ifnmka

Welcome to vJUG, the Virtual Java User Group. We bring top-tier talks on Java and backend engineering directly to your screen, wherever you are in the world. Join us for our upcoming session: Top 10 Event-Driven Architecture Pitfalls by Victor Rentea 👉 RSVP: luma.com/u1ifnmka

When looking for tech events, hacks, & meetups, where do you go to find them? As the organiser of @virtualjug.bsky.social & launching a new dev event, I want to make sure we show up in the spaces you actually use. Let me know in the comments 👇

"What could go wrong if I use a message instead of a REST API?" Everything. Duplicate deliveries, out-of-order data, and dual-write drops. Join Java Champion Victor Rentea & @virtualjug.bsky.social for 10 real-world EDA war stories. 🗓️ July 9, 2026 | 4 PM UTC 🎟️ Free signup: luma.com/u1ifnmka

“Kim, what’s next?” I’m not quite ready to share all the details yet, but Dan Hardiker & I are working on a brand-new developer event. We need your input to help build this: - What’s your favourite part of tech conferences? - What’s your biggest pet peeve? (Be honest; I can take it!) Let us know👇

We go live in 45min see you there

Kim Fletcher@kimfletcher.bsky.social · 3mo ago

Next @virtualjug.bsky.social live: The best way to fetch multiple to-many relationships with #Java by @vladmihalcea.bsky.social Dive into the most efficient strategies for retrieving complex data structures, for scenarios where you need to store the result set in a cache. luma.com/6wrxlqj3

Next @virtualjug.bsky.social live: The best way to fetch multiple to-many relationships with #Java by @vladmihalcea.bsky.social Dive into the most efficient strategies for retrieving complex data structures, for scenarios where you need to store the result set in a cache. luma.com/6wrxlqj3

Don't forget we have a live session happening this week Thursday!

Virtual Java User Group@virtualjug.bsky.social · 3mo ago

N+1 queries are a choice, not a destiny. Stop the performance leak! Learn the best way to fetch multi-level hierarchies with @vladmihalcea.bsky.social and Laurentiu Spilca. Register now: luma.com/6wrxlqj3 #Java #Springboot

And just like that @devoxx.uk 2026 has come to an end. Thank you to everyone who helped make this another unforgettable event.

N+1 queries are a choice, not a destiny. Stop the performance leak! Learn the best way to fetch multi-level hierarchies with @vladmihalcea.bsky.social and Laurentiu Spilca. Register now: luma.com/6wrxlqj3 #Java #Springboot

The best way to fetch multiple to-many relationships with Java · Luma

Fetching a multi-level hierarchy from a relational database is a classic performance bottleneck. If you do it wrong, you end up with the dreaded N+1 query…

luma.com

Join the CERN Java User Group for a talk on spec-driven development from the amazing Java Champion, @martinelli.ch . 💬 Lessons from Spec-Driven Development 📅 12 May 2026, 18:00, more details and registration on cern.ch/jug-meetup-5 !

Are you really going to miss @devoxx.uk? Your next breakthrough idea might find you in the historic hall of the Business Design Centre. Join us and hundreds of the best minds in development for a memorable experience in an iconic London location. Secure your spot now: ➡️ Devoxx.co.uk

Join us on May 14th for a live session with #Java Champion @vladmihalcea.bsky.social, who delves into the most efficient strategies for retrieving complex data structures—specifically for scenarios where you need to store the result set in a cache like Redis. Sign up: luma.com/6wrxlqj3

The best way to fetch multiple to-many relationships with Java · Luma

Fetching a multi-level hierarchy from a relational database is a classic performance bottleneck. If you do it wrong, you end up with the dreaded N+1 query…

luma.com

Only 13 days to go… and the excitement is truly building! After months of planning, curating, connecting, dreaming, and a few tears, @devoxx.uk 2026 is almost here! As one of the organisers, I can’t wait to open the doors and welcome all of you to our 13th edition.

T-16 days until the Business Design Centre transforms into a developer's paradise. 100+ sessions, 2 days, 1 massive community. Are you ready for Devoxx UK? ✅ Ticket - devoxx.co.uk ✅ Devoxx Companion App - m.devoxx.com 6th & 7th May | London

Newsflash: Devoxx UK is not your average conference! We go above and beyond to create a happy, inclusive vibe so you’ll leave not only having learned a LOT, but with a big smile on your face too. Come and see what we mean. Tickets devoxx.co.uk 6th & 7th May | London

Tech conferences aren't dead, they’re evolving. According to DevoxxUK’s Mark Hazell, the real value isn't the info (you can Google that); it’s the focused learning, the community & the dev in the next chair who solved your bug. Full ShiftMag interview: bit.ly/3OBf4X9 devoxx.co.uk | 6 & 7 May

𝐂𝐚𝐥𝐥 𝐅𝐨𝐫 𝐒𝐩𝐞𝐚𝐤𝐞𝐫! Share what you're building, learning, or breaking with Java developers worldwide. We're always looking for practitioners with real-world experience to speak at Virtual JUG. Submit a talk via our CFP and reach a truly global audience. sessionize.com/virtual-java-user-group/

Virtual Java User Group: Call for Speakers

This is an ongoing Call for Papers.The Virtual Java User Group (vJUG) runs monthly meetups bringing the global Java community together, wherever you a...

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