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Stephen Colebourne @jodastephen.bsky.social · 14h

Published a new proposal for Type Conversion in Java, an alternative approach to JEP 507: tinyurl.com/typeconvertj...

Type conversion in Java

tinyurl.com

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Reposted by Stephen Colebourne

Stuart Marks @smarks.bsky.social · 7d

"I need an array of a generic type. Why won't the compiler let me create one?"

"How do I find the intersection of two Sets?"

These and all other questions about generics and collections are answered in the newly published 2nd edition of Java Generics and Collections. 1/2

#Devoxx #Java

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Stephen Colebourne @jodastephen.bsky.social · 3d

There isn't a reason to set something explicitly to null. This may require for example an enum representing UNKNOWN or an empty list.

Stephen Colebourne @jodastephen.bsky.social · 5d

My second @devoxx.com talk on Joda-Beans and code generation in Java is now live! youtu.be/Z15X-0eSo50?...

Joda Beans, POJO code generation and beyond by Stephen Colebourne

YouTube video by Devoxx

youtu.be

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Stephen Colebourne @jodastephen.bsky.social · 5d

My @devoxx.com talk The New Java Best Practices, covering Java 9 to 25, is now live on YouTube. Enjoy! youtu.be/4sjJmKXLnuY?...

The New Java Best Practices by Stephen Colebourne

YouTube video by Devoxx

youtu.be

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Stephen Colebourne @jodastephen.bsky.social · 5d

Dear @devoxx.com, Thank you. Parting is such sweet sorrow.

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Stephen Colebourne @jodastephen.bsky.social · 6d

At @devoxx.com listening to talks on Pattern Matching, Serialization and Ask the Architects. There is a lot of research bubbling away under the surface by the excellent #Java team.

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Reposted by Stephen Colebourne

Devoxx Belgium @devoxx.com · 7d

All the #Devoxx Belgium Deep Dive talks from the 2nd day are now available on the companion app and our YouTube channel! #Enjoy 🍿
www.youtube.com/@DevoxxForev...

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Stephen Colebourne @jodastephen.bsky.social · 8d

Really enjoyed giving my talk on Joda-Beans at @devoxx.com . Source code regeneration for the win!

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Stephen Colebourne @jodastephen.bsky.social · 10d

I may have finished writing my @devoxx.com presentations. Or I may not. I would quite like a day off tomorrow though...

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Reposted by Stephen Colebourne

JUnit Team 💙💛 @junit.org · 15d

#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...

JUnit Release Notes

docs.junit.org

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Reposted by Stephen Colebourne

Sharat (Shar) Chander @sharatchander.bsky.social · 22d

#Java peers...Find out what #JDK enhancement proposals have been integrated in #JDK25 since #JDK21:

openjdk.org/projects/jdk...

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Stephen Colebourne @jodastephen.bsky.social · 21d

No pressure then...

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Reposted by Stephen Colebourne

Mark Reinhold @mreinhold.org · 29d

Java 25 / JDK 25: General Availability: mail.openjdk.org/pipermail/jd...

Features: openjdk.org/projects/jdk...

Downloads: jdk.java.net/25/

#Java25 #JDK25 #OpenJDK #Java

Java 25 / JDK 25: General Availability

mail.openjdk.org

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Reposted by Stephen Colebourne

Sharat (Shar) Chander @sharatchander.bsky.social · Aug 22

📢Reminder📢

#Java peers, #JavaOne is returning next year (Mar 17-19, 2026). PLEASE SIGN UP FOR UPDATES if you're interested in attending, speaking, or sponsoring:
➡️ go.oracle.com/LP=149517

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Stephen Colebourne @jodastephen.bsky.social · Jul 28

Have you considered sending an email to idiots like me that create drafts but don't submit them....

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Stephen Colebourne @jodastephen.bsky.social · Jul 16

Thanks for looking, and interesting to see the variance. I suspect many devs will not have the thoroughness to run multiple AIs and compare them as you've done here.

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Stephen Colebourne @jodastephen.bsky.social · Jul 13

My experience suggests that is a sure way to fail. No human would ever approve this pile of junk, yet AI did: github.com/JodaOrg/joda...

Para added by Indugundam · Pull Request #816 · JodaOrg/joda-time

The Joda-Time project has been running for many years now, and the codebase is stable. Java SE 8 contains a new date and time library that is the successor to Joda-Time. As such Joda-Time is primar...

github.com

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Reposted by Stephen Colebourne

Bruno Borges @brunoborges.bsky.social · Jul 5

The owner of the place my kids go to for martial arts, built an app using #AI #VibeCoding. He had no clue what he was doing.

I was able to extract all parents and children data, including children photos.

This is the proof that Software Engineer demand will go up, not down.

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Reposted by Stephen Colebourne

Sharat (Shar) Chander @sharatchander.bsky.social · Jun 30

The 15th edition of the #JVM Language Summit is coming up (August 4-6).

Register now to meet and network with #OpenJDK engineers, visiting language experts, and #Java luminaries.

Learn more (sign up soon, space is limited!) ➡️ openjdk.org/projects/mlv...

#JVMLS2025 #JVMLS

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Stephen Colebourne @jodastephen.bsky.social · May 2

I like it

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Reposted by Stephen Colebourne

Per Minborg @pminborg.bsky.social · Apr 22

We just integrated a performance improvement to Java String that will provide a ~10x performance boost in some applications where Strings are used as keys and where the associated values are constant foldable. This will make JDK 25 faster.

github.com/openjdk/jdk/...

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Stephen Colebourne @jodastephen.bsky.social · Apr 22

Should `import module java.base` (JEP-511) be Good or Bad practice in codebases that have previously banned wildcard imports? Perhaps `java.base` should be considered acceptable with other modular imports banned (but this will need tooling support in IDEs, Checkstyle etc). WDYT? openjdk.org/jeps/511

openjdk.org

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Stephen Colebourne @jodastephen.bsky.social · Apr 16

Huge thank you to American Express for sponsoring my Open Source work at Joda-Time, Joda-Money, Joda-Beans and ThreeTen-Extra. Having a company make a commitment like this is really invigorating.

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Stephen Colebourne @jodastephen.bsky.social · Mar 10

More issues added to my OSS projects by yet another AI bot (YAAIB). AI issues are like populism, they sound vaguely reasonable until you actually engage your brain and realise they are utter crap.

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