Thanks to @zakhav.bsky.social for updating the #EclipseCollections website with the 12.0 and 13.0 releases! 🙏 eclipse.dev/collections/

Sunset on the James River near the Jamestown Settlement in Virginia

Still waiting for the #Java of the future to solve all your collection problems? #EclipseCollections has been solving them since J2SE 1.4. Stop waiting. Start refactoring. Eclipse Collections makes Java look, feel, and run like a brand new programming language. donraab.medium.com/refactoring-...

Music Bingo night at Alewerks Brewing Co. in Williamsburg

Wow, I haven't written a book in several months. I thought I'd get back to writing my second book while I am on vacation. The muscle memory is sore. This might take a while. While I'm working on book number two, I hope you enjoy reading my first book, "Eclipse Collections Categorically." 🙏

What's for coffee today? #TheCoffeeClub

It was a beautiful day today. A great day for a bike ride. If you look closely, you can even see a rainbow. I hope you got to experience something beautiful in your life and world today. 🙏

To parents everywhere who struggle to get their kids to get dressed and not play with their food. I give you two eggs and a pancake dressed in bacon.

Sunset on the James River tonight

Blog: What if Java Collections had Eager Methods for Filter, Map, FlatMap? "I encourage folks to check out the code in the experiment and maybe try some experiments of their own with Covariant Return Types, Default and Static methods for Interfaces, and Sealed Classes." medium.com/better-progr...

I brought my bike on vacation to Virginia. I took it out for a five mile ride today. It is a beautiful and sunny day here. I hope you are having a beautiful day wherever you are. 🤗

"toBe(), or not toBe()." My latest blog was inspired after taking some Smalltalk collections for a quick spin in the Pharo IDE. Collection converter methods are more than a convenience. They aid discoverability of a collections library types through code. 🤔 donraab.medium.com/what-if-java...

Don't stop exploring, learning, teaching, sharing, caring, thinking, and writing. That's how civilization ends.

Coding in Smalltalk is like riding a bike. Pictured I take an OrderedCollection and use converter methods in Smalltalk to convert to a SortedCollection, Set, and Bag. Same as when I first learned Smalltalk 30 years ago. Plus dark mode in Pharo. Now I'm going to go ride my bike. 🚴‍♂️

Happy Belated Birthday Squeak! news.squeak.org/2025/10/01/h...

Every day, someone new discovers and enjoys a blog I wrote years ago. If you're committed to the long journey, blogging will surprise you once in a while.

Need primitive type support and missing container types in the #Java Collections Framework? Many folks are quite content to keep waiting for Valkyries to come and take them to [project] #Valhalla, but some chose to follow Alan Kay’s maxim: "The best way to predict the future is to invent it"

My latest blog: Go Primitive in Java, or Go in a Box I've programmed in Java for half of my life. I stopped waiting for language features when I knew lambdas would arrive. We got to work and solved collections problems together in OSS. No regrets, just thanks. 🙏 donraab.medium.com/go-primitive...

My latest blog: Go Primitive in Java, or Go in a Box I've programmed in Java for half of my life. I stopped waiting for language features when I knew lambdas would arrive. We got to work and solved collections problems together in OSS. No regrets, just thanks. 🙏 donraab.medium.com/go-primitive...

Still waiting for the #Java of the future to solve all your collection problems? #EclipseCollections has been solving them since J2SE 1.4. Stop waiting. Start refactoring. Eclipse Collections makes Java look, feel, and run like a brand new programming language. donraab.medium.com/refactoring-...

My book, "Eclipse Collections Categorically", is available on Kindle Unlimited (KU) again. It is available for free to KU subscribers from today through January 16, 2026. Read the review from @waynebeaton.bsky.social to learn about what is in the book. 👇 blog.waynebeaton.ca/posts/ecc/re...

My book, "Eclipse Collections Categorically", is available on Kindle Unlimited (KU) again. It is available for free to KU subscribers from today through January 16, 2026. Read the review from @waynebeaton.bsky.social to learn about what is in the book. 👇 blog.waynebeaton.ca/posts/ecc/re...

Do your Maps know how to flip? levelup.gitconnected.com/parkour-with...

I've been using RandomAccessSpliterator for years in #Java without realizing it. I wrote about this default spliterator years ago. I wrote about it again after learning it is used by immutable Lists created by List.of() and Stream.toList(). Deja vu all over again. donraab.medium.com/spliterating...

My latest blog: Spliterating Hairs Results in Spliterating Deja Vu The story of a four day accidental rabbit hole self-extraction. I've fallen down this hole before. Who knows, maybe the blog will prove useful and lead to a small change in the #Java ListN class. 🤷‍♂️ donraab.medium.com/spliterating...

Yeah, ListN doesn't have a specialized spliterator implementation, so it uses AbstractList's RandomAccessSpliterator. It would probably be fairly simple to have it use ArraySpliterator. The difference is that the List RAS has a get() call vs direct array access. Seems like a moderate gain.

My latest blog: Spliterating Hairs Results in Spliterating Deja Vu The story of a four day accidental rabbit hole self-extraction. I've fallen down this hole before. Who knows, maybe the blog will prove useful and lead to a small change in the #Java ListN class. 🤷‍♂️ donraab.medium.com/spliterating...

Have you encountered RandomAccessSpliterator in your #Java travels? I saw it is used 76 times running the Eclipse Collections unit test suite in the debugger. TIL that both ListN and List12 classes use it, except for 1️⃣ element Lists. It's nice to see it is used. 👍❤️ donraab.medium.com/traveling-th...

Have you encountered RandomAccessSpliterator in your #Java travels? I saw it is used 76 times running the Eclipse Collections unit test suite in the debugger. TIL that both ListN and List12 classes use it, except for 1️⃣ element Lists. It's nice to see it is used. 👍❤️ donraab.medium.com/traveling-th...

Blog: 10 Billion Integers Walk Into an Array I wrote this blog in October last year, and it has been my top blog for the past year based on number of views and reads. 🤷‍♂️ Enjoy! 🙏 donraab.medium.com/10-billion-i...

You can’t join hallway track convos through a screen 😅 💬 Meet your people live at #Devnexus 2026 — Early Bird tickets end next week! 🎟️ Secure tickets today at devnexus.org

It's a beautiful day. Go out and be you. You're good enough. Be better tomorrow. By being you today. 🤗

Survival isn’t about holding on—it’s about understanding your brain. 🧠 @arthurdoler.com's inspiring keynote at #dev2next, Survival Under Fire, showed how to stay whole during adversity and prepare for the next challenge. Photos from the keynote below! #Resilience #WellBeing

My latest blog: Refactoring to #EclipseCollections with #Java 25 at the #dev2next Conference I really enjoyed giving this talk last week at @dev2next.bsky.social with my friend and co-speaker @zakhav.bsky.social. Enjoy! 🙏 donraab.medium.com/refactoring-...

My latest blog: Refactoring to #EclipseCollections with #Java 25 at the #dev2next Conference I really enjoyed giving this talk last week at @dev2next.bsky.social with my friend and co-speaker @zakhav.bsky.social. Enjoy! 🙏 donraab.medium.com/refactoring-...

There's one week left to read "Eclipse Collections Categorically" on Kindle Unlimited for free. Read the authors inside guide to reading first to find out how to make the most out of reading the book with limited time. donraab.medium.com/the-authors-...

Blog: 10 Billion Integers Walk Into an Array I wrote this blog in October last year, and it has been my top blog for the past year based on number of views and reads. 🤷‍♂️ Enjoy! 🙏 donraab.medium.com/10-billion-i...

Cup half full here. The world's problems are too numerous for any one person to solve. Pick one or two and solve the 💩 out of them. Support and advocate for those who are working hard to solve other problems you care about. Thank you for doing what you do to make the world a better place for all. 🙏

I'm back home from #dev2next and am writing my first blog in over a month. I only wrote one blog in September, mostly because I was busy preparing and travelling to two developer conferences. Stay tuned!

So long Colorado. Good times had and memories made at #dev2next this year. Thank you @dev2next.bsky.social and @venkats.bsky.social ! 🙏 Below was my new sighting at Garden of the Gods this trip. Balanced with the force is this rock. An inspiration. Balance we must all find. ⚖️

Two cute. Miss these guys. They'll be keeping us up late tonight. 🐈‍⬛🐈‍⬛

Great explanation of what, why, and where is architect from @zakhav.bsky.social in "Escaping Architecture Ivory Tower with Architecture Pattern Catalog" at #dev2next. I loved this talk and the human drawn pictures on the slides. Well done! 👏

Awesome talk and demo on "Bootiful Spring AI" with @starbuxman.joshlong.com at @dev2next.bsky.social. 👏

Schrödinger's cats' Halloween

Duke on Nails and Eclipse Collections Categorically on display with @venkats.bsky.social in the hallway track at @dev2next.bsky.social . Thank you for organizing this amazing developer conference, and for helping me give the book away before the keynote today! Hope to come back again next year! 🙏

Great talk! Looking forward to using it in my projects to replace some awkwardness in my existing projects and get real immutability. #Java

Duke on Nails and Eclipse Collections Categorically on display with @venkats.bsky.social in the hallway track at @dev2next.bsky.social . Thank you for organizing this amazing developer conference, and for helping me give the book away before the keynote today! Hope to come back again next year! 🙏

Our "Refactoring to Eclipse Collections" talk at @dev2next.bsky.social has been delivered. Slides linked on abstract. Thank you to everyone who attended. @zakhav.bsky.social is giving a talk on "Escaping the Architecture Ivory Tower" Thursday. Don't miss it! Ask us anything in the hallway track. 🛤️

#JUnit 6.0.0 is released! ✨ Java 17 and Kotlin 2.2 baseline 🌄 JSpecify nullability annotations 🛫 Integrated JFR support 🚟 Kotlin suspend function support 🛑 Support for cancelling test execution ⏭️ New `--fail-fast` mode for ConsoleLauncher 🧹 Removal of deprecated APIs docs.junit.org/6.0.0/releas...

I love having 75 minutes to give the "Refactoring to Eclipse Collections" talk at @dev2next.bsky.social with @zakhav.bsky.social. ✔️ Engaging Slide Content ✔️ Live Refactoring ✔️ Memory Costs with Java 25 and JEP 519 ✔️ Ask us anything Yeah, we got time. Tuesday - 10:45am - Salon FGH 🙏