Free Kindle version! #Java Data Structures, using #EclipseCollections.

My latest blog: One Positive Effect of Java 25 with Compact Object Headers Enabled donraab.medium.com/one-positive...

Happening NOW! Join the largest virtual gathering for the Jakarta EE and Java community, the JakartaOne Livestream conference. Join live: www.youtube.com/live/KoUFAk3...

On Cyber Monday, the Kindle version of "Eclipse Collections Categorically: Level up your programming game" will be $0 to buy. Offer begins 12:00am PST & ends at 11:59pm PST on Dec. 1, 2025. Mark your calendar, & share w/ folks who like unique tech books. 🙏 www.amazon.com/Eclipse-Coll...

The Kindle version of "Eclipse Collections Categorically is being offered at a special price today on Amazon. There's less than 20 hours left today to buy a copy of the Kindle version for $0. Good luck and enjoy! 🙏

⚡ Java in the cloud can be blazing fast. At #Devnexus, @rustam.no breaks down serverless, Native Image, and CRaC — and how each unlocks next-level performance. devnexus.com/events/java-... 🎟️ Get tickets at devnexus.com 📨 Sign up atlj.ug/DevnexusConn...

Sponsoring #Devnexus 2026 means putting your brand or product in front of thousands of developers, engineers, and tech leaders shaping the future of technology. 💻 Visibility, credibility, and real connections, all in one event. 🚀 Click here for a prospectus ajug.typeform.com/to/BTa7bZ

🚀 Faster startup, stronger performance! At #Devnexus, @theguywiththeduketattoo.com & @rustam.no showcased how CRaC and Jakarta EE bring new power to Java apps. Catch the recap ⤵️ devnexus.org/posts/duke-o... 💥 Don’t miss Devnexus 2026 — where Java’s future comes alive!

Thank you for having me, @cloudnativebergen.dev! What an event! 🤩 It was great to be back again – this time with a workshop and a talk on #Cloud, #CloudNative apps, #GoogleCloud and #AI. Thank you to all the organisers, fellow speakers, volunteers, and attendees! Hope to see you all again soon! 🙌

The first day of Cloud Native Day Bergen 2025 has already started with good help from our Volunteers! @rawkode.dev , @sindre.bsky.social , @eyeveebee.bsky.social , @rustam.no , @taniaholst.bsky.social, and many more are running their workshops today 🚀 #cndb2025 #cloudnative

Happy birthday to the one and only @sharatchander.bsky.social! Enjoy your cake day! 🥳🧁🎉🎂 Thank you for all you're doing for the #Java community! ☕

Woho! 🎉 @devbcn.bsky.social turns 10 this year! 🎉 I am glad to be back in Barcelona yet again to run a workshop on optimising Java apps for the Cloud, and running it all on Google Cloud. Join me 👉 www.devbcn.com/talk/825146 #java #cloud #googlecloud #quarkus #graalvm #openliberty

WeAreDevelopers World Congress 2025 takes place from July 9 - 11 in Berlin, Germany. Book your spot now and meet Oracle ACEs @theguywiththeduketattoo.com and @rustam.no ♠️ 👉 www.wearedevelopers.com/world-congress #OracleACE

This is so cool! "Get the location of the ISS using DNS" 🤓🚀 shkspr.mobi/blog/2025/07...

The Kindle edition of my book, "Eclipse Collections Categorically: Level up your programming game" is now available! Enjoy! 🙏 www.amazon.com/Eclipse-Coll...

We had great fun recording an episode with my fantastic friends, amazing engineers, and community heroes Mohammed Aboullaite and Carlos Sanchez (@csanchez.org) We talked about #AI, #Gemma, career growth, #Java and everything in between, all here in Berlin, at #GoogleIOConnect. 🎧 🤓

Trying out Veo2. It's getting quite real. #BuiltWithGemini #GoogleIOConnect

Blog: Foreword and Onward to Your Next Connection I share advice & personal examples of connections I've made over 25 years. 🙏 @josepaumard.bsky.social @venkats.bsky.social @zakhav.bsky.social @sharatchander.bsky.social @malagupta.bsky.social @loiane.bsky.social donraab.medium.com/foreword-and...

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Join me in Colorado Springs and learn more about #CloudNative #Java! Use the code below for a really nice discount! 🎫🎟️ Can't wait to see you all! 🤩🌟🙌

Get your edition of #Quarkus in Action while you can! #Java

I can teach developers how to level up their collections coding skills in #Java. Options available: 💰 Consulting engagement 🥋 Finish the FOSS Eclipse Collections katas 📙 Buy my book & own a permanent reference 🗣️ See me & @zakhav.bsky.social speak @dev2next.bsky.social👇 www.dev2next.com/program

Every day. Any day. #programming

Super happy to see our great developer and friend @rustam.no with us one more year! 🙂🤗

Occasionally, I discover a developer complaining about the verbosity of #Java Streams. 😮‍💨 We spent 21 years tackling the verbosity and other challenges with Java collections, and incidentally solving many of the verbosity issues with Java Stream. 🏋️ You're welcome! 👇 github.com/eclipse-coll...

Q: Is the Eclipse IDE required to use Eclipse Collections? A: No. Eclipse Collections is a stand-alone Java library and one of many open source projects at the Eclipse Foundation. I was asked again yesterday, and responded w/ the branding section of this blog.👇🙏 donraab.medium.com/there-is-no-...

At @jcon.one Slovenia, great to see @rustam.no explaining the cloud landscape in the java ecosystem

Join MakeIT 2025 & JCON OpenBlend Slovenia 2025, dedicated to developers and decision-makers. 👉 JCON OpenBlend Slovenia 2025 is a community event with a focus on Java and open-source technologies. 👉 MakeIT 2025 is centered around Oracle technologies. Register now 👉 makeit.si #OracleACE

Ha! Guess what? Apparently I am a *Conference King*. 👑😂 Who knew? #Java #Java30WithIntelliJIDEA www.jetbrains.com/lp/java-30/a...

My Latest Blog: Happy 30th Birthday, #Java! 🎉🎉🎉 Thank you for being my primary and preferred programming language for the past 25 years! 🙏☕☕☕ donraab.medium.com/happy-30th-b...

I answered the question "How do you learn a rich API?" a couple of weeks ago in a Pittsburgh JUG meetup. I wrote the book "Eclipse Collections Categorically" to show how any developer can solve this problem. The path to learning is right in front of you. 👣 www.youtube.com/watch?v=RpOt...

Look what showed up at my door! #EclipseCollections Categorically by @thedonraab.bsky.social! Also, hardcover! Can't wait to see how the final book has become! 😍 #Java

That's what happens when conferences overlap. We had to divide and conquer a little. #JakartaEE #Java

Look who I ran into at CPH! @rustam.no on his way to @geecon.bsky.social and me to @jcon.one Im sure someone is working somewhere, so #eatingWhileaothersAreWorking #Community #Conferences

We had an amazing time at last year's dev2next and cannot wait for our second year at the end of September! Some snapshots from last year 📸 Purchase tickets at- www.dev2next.com/register And don't forget our super early bird tickets are available till May 31st- don't miss out!

That's my experience too. It's good for certain things, writing new code is not one of them. At least for now.

... but @venkats.bsky.social says AI is useful for - generating ideas (an ideation partner) - finding fault with code you present it (a code-review buddy) #DevoxxUK

What’s Really Going On in Your Quarkus App? A Java Developer’s Guide to Jolokia and Hawtio, by @myfear.com: myfear.substack.com/p/whats-real... #Quarkus #Java #Jolokia #Hawtio

Happy happy birthday, @thedonraab.bsky.social! Have a great one and May the 4th be with you! 🎉🥳🎈

#LangChain4j 1.0.0-rc1 and 1.0.0-beta4 are out! 🎉 As we celebrate the second anniversary of #LangChain4j (yay!!!), we are excited to announce the release of version 1.0.0-rc1 for several of our modules. We plan to release the next set of modules soon! github.com/langchain4j/...

⚡ I’m still buzzing from the energy at "Infusing Java with AI" talk in Thessaloniki! 💡 Big thanks to #GDGCloudThessaloniki & #SKGJavaMeetup for the awesome event—and to all who joined, asked questions & shared your passion! 🙌 Loved geeking out with you all! #BuildWithAI #GenAI #Java #GDG #GDE

➡️📨📝 "Congratulations! Your proposal has received high scores and we're delighted to invite you to speak at the conference." 🤩 What an email to wake up to this morning! *Two* sessions accepted for @dev2next.bsky.social in Colorado Springs! www.dev2next.com/speaker/2a69...

📢 Have you heard of Coordinated Restore at Checkpoint (CRaC)? It is a fast way to start your Java applications. Did you know that you can do that with #JakartaEE as well? Join @theguywiththeduketattoo.com and @rustam.no at #JCON2025 to learn more: 2025.europe.jcon.one

Just a little reminder that today the next updates of #OpenJDK will be made available…so don’t forget to update you #Java version :)

My latest blog: Categorizing the Methods of Set Types in Eclipse Collections There are some subtle differences between MutableSet and ImmutableSet that are easier to see with diagrams and charts. 👀 Enjoy! 🙏 donraab.medium.com/categorizing...

The team just released the @QuarkusIO MCP server 1.0.0 🎉. The main branch is now 1.1 and they already have a couple of features for this milestone: client sampling, Dev UI improvements and CLI adapter buff.ly/YWVykb3

#JakartaEE Web Profile 11 is now available, featuring updates to several specifications targeted for developing web applications. Learn more: hubs.la/Q03fWx3l0 #JakartaEE11

Quarkus 3.21.1 - Maintenance release quarkus.io/blog/quarkus... @quarkus.io

Teach the children why radio buttons are called radio buttons