#Hardwood has been released as an #opensource library.

Built to optimize #ApacheParquet reading on the JVM, it uses a multi-threaded architecture with zero mandatory external dependencies, offering a simpler, high-performance alternative to the Apache Parquet Java implementation.

More details on #InfoQ 👉 https://bit.ly/4y9VQd4

#Java #BigData

🟢 🟡 🟠 🔴

Are my tests flaky and how bad is it?

The Test Dashboard answers these questions!

✏️ Read more in our blog: https://testlens.app/blog/2026/07/08/test-dashboard/
👀 See it in action: https://github.com/junit-team/junit-framework/issues/5831
🚀 Try TestLens yourself: https://github.com/marketplace/testlens-app

#Java #Kotlin #JUnit #Gradle #Maven

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The Test Dashboard issue shows which tests were flaky in the past 90 days and shows a flakiness percentage value for each.

Functional Java by dimitris papadimitriou is free with a Leanpub Reader membership! Or you can buy it for $2.00! https://leanpub.com/functional-java-with-vavr #java #functional_programming

Big Kotlin pack by Marcin Moskała is the featured bundle of ebooks 📚 on Leanpub!

Link: https://leanpub.com/b/kotlin_mm

#Kotlin #Android #Java #Computer_programming #Engineering

We recorded the What's New in #IntelliJIDEA 2026.2 video today. New features for #AI, #Java, #Kotlin, Debugger, #Spring, #Gradle, #Maven and #Docker coming soon to an IDE near you! @sivalabs @antonarhipov Marco Behler

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Marit van Dijk, Siva Katamreddy, Anton Arhipov and Marco Behler in the JetBrains Amsterdam office

🍿 #Sonatype will introduce #Maven #Central publishing limits

https://central.sonatype.org/publish/maven-central-publishing-limits/

While I did put a popcorn emoji in front, I do think that's one of the only ways forward to keep that central bit of software in the #Java world free to download for everyone.

📣 The CFP for @devoxx closes in 10 days!

Now is the time to share with the world that cool side project, your lessons learned, or maybe that new practice from work❣️

From #Java to Agentic #AI, bring forward your passion for tech ✨!

https://dvbe26.cfp.dev

Join us July 9 as Billy Korando explores how Java's data-oriented features challenge classic OOP assumptions. Discover records, pattern matching, and sealed hierarchies. Sign up at nyjavasig.com! #Java #Programming

Welcome to the on going saga of our Hero's quest to find employment as a (backend) Software Developer. At this moment our Hero contemplates navel lint his dire plight. He scans the online landscape and job boards for signs of employers.

He can wield #C with extreme delicacy & finesse; compose functional code of #Erlang; use #Java, #Javascript, #NodeJS adeptly. Even understand the arcana of #Forth and has constructed a #RabbitMQ cluster with careful planning.

Yet our intrepid Hero is passed by again and again, like last year's Xmas toys. None glance in his direction as he rises from his chair to play with his faithful dog, Clicquot. Maybe tomorrow will yield new mysteries.

http://www.snert.com/resume/

#GetFediHired #FediHire

It’s been a busy week in the #Java ecosystem!

Highlights include:
➤ The GA releases of Hardwood 1.0 and Endive 1.0; the June 2026 edition of Azul Payara; point releases of Quarkus, LangChain4j; the first beta release of WildFly 41; and introducing Eliya JDK and the Open Source Sustainability Initiative (OSSI), the latter of which was founded by HeroDevs and Commonhaus Foundation.

🔗#InfoQ News Roundup: https://bit.ly/44DXdDh

#SoftwareDevelopment

A little late… sharing the slides from my session at #devbcn2026 🫶!

https://www.slideshare.net/slideshow/now-and-next-java-for-ai-devbcn-2026/288093748

Thank you to the organizers for such a welcoming event, and to everyone who joined, asked questions, and kept the conversation going! Follow more news on #Java at inside.java!
#AI #ML

Big Kotlin pack by Marcin Moskała is the featured bundle of ebooks 📚 on Leanpub!

Link: https://leanpub.com/b/kotlin_mm

#kotlin #android #java #computer_programming #engineering

Functional Java by dimitris papadimitriou is free with a Leanpub Reader membership! Or you can buy it for $2.00! https://leanpub.com/functional-java-with-vavr #java #functional_programming

In the first episode of our brand new show IntelliJ IDEA Tech Talks, learn how to solve nullability issues in your Spring (Boot) applications by adding Specify, from our guest @mhalbritter - hosted by yours truly!
#IntelliJIDEA #JSpecify #Java #Spring #SpringBoot
https://www.youtube.com/watch?v=tpz-FSs6oO4

@john Hi, I’m not sure if you saw @mehmandarov’s article posted just a little while before your question:

https://mastodon.social/@mehmandarov/116792525382514461#

He describes Jackson as “strict” and other JSON libraries as “lenient”. Why is Jackson strict? I don’t know the actual reason but I have a plausible guess: an “extra” but unknown property might change the interpretation of one of the known properties.

#Java #Jackson (1/2)

Jetpack Compose internals by Jorge Castillo is on sale on Leanpub! Its suggested price is $49.99; get it for $17.50 with this coupon: https://leanpub.com/composeinternals/c/LeanPublishingDaily20260619 #software #computer_programming #java #kotlin #software_architecture

There's a whole host of autoformatters for #Java. Which one do I want, assuming that I:

- Have astigmatism and greatly prefer 4 space indents
- Will probably use tons of lambdas and pattern matching
- Am otherwise okay with "good enough" and don't really care about the stylistic details
- Never want anything by Palantir to touch my machine ever

?

For those who live or have lived (like me up till 2020) in JavaLand, this will be a stimulating read: https://www.linkedin.com/pulse/project-valhalla-explained-how-decade-work-arrives-jdk-skowroński-paulf/ (tl;dr: Java value classes)

When I was a Java-head, I mostly hated all the new Java features because to a one, they made it less readable. I think this mostly won’t? Can’t wait to hear reports back from people who try applying it to big codebases.

#java

Functional Java by dimitris papadimitriou is free with a Leanpub Reader membership! Or you can buy it for $2.00! https://leanpub.com/functional-java-with-vavr #java #functional_programming

I have no idea if people still read blogs or just ask everything to AI. But I redesigned my blog and I am quite proud of the result. See https://www.wimdeblauwe.com/

There is now also a search to quickly find past articles. Give it a try and let me know what you think!

#java #springboot

A Short Guide to Naming by Tim Ottinger is free with a Leanpub Reader membership! Or you can buy it for $6.50! https://leanpub.com/naming_shortguide #computer_programming #python #javascript #java #web_development #refactoring

Java Starter by Jitin Kayyala is the featured bundle of ebooks 📚 on Leanpub!

Link: https://leanpub.com/b/javastarter

#java #computer_programming

'Never use double for money' is dogma, not engineering.

Guest author Stefano Fago breaks down when double, BigDecimal, or fixed-point is the right call, and the production traps that quietly undo each one.

https://blog.frankel.ch/bigdecimal-vs-double/

#java #deepdive

#PairProgramming (if you'd like to) #TDD #JUnit5 #Kotlin #Java