java.evolved – Every old Java pattern next to its modern replacement, side by side. javaevolved.github.io

java.evolved Code Snippets | java.evolved

A collection of modern Java code snippets. Every old Java pattern next to its clean, modern replacement — side by side.

javaevolved.github.io

#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...

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

Ever wonder which #Spring project versions map to the latest Spring Boot release? 🤔 There is no more guessing if you navigate to spring.io/projects/gen...

✨ New blog post: "STF Milestone 4: Parameterized test classes" JUnit 5.13 introduced parameterized test classes (in addition to methods). They are a powerful testing tool that has long been missing from JUnit Jupiter... 👉 marcphilipp.de/blog/2025/06...

Java 25 enters Rampdown Phase One – and is packed with features: ✅ Scoped Values ✅ ​Compact Source Files + Instance Main Methods ✅ Flexible Constructor Bodies ✅ Stable Values (Preview) ✅ Structured Concurrency revamp Full overview: 👉 www.happycoders.eu/java/java-25... #Java #Java25

Java 25 Features (with Examples)

Java 25: Scoped Values, Module Import Declarations, Compact Source Files, Instant Main Methods, Flexible Constructor Bodies, Compact Object Headers and more...

happycoders.eu

A lot of good #java stuff @devoxx.uk 😎 Here is the 2025 playlist: youtube.com/playlist?lis...

2025 Devoxx UK - YouTube

Sessions, interviews and more from Devoxx UK 2025

youtube.com

Devoxx UK@devoxx.uk · last yr.

🚨BREAKING NEWS - Devoxx UK 2025 sessions are now available on YouTube! To catch up on any sessions you missed go to buff.ly/2qOSCNF Don’t forget to like, share, comment and subscribe 😉 Video: The Hidden Art of Thread-Safe Programming: Exploring java.util.concurrent by Heinz Kabutz

Excellent resources below: 😎

Sven Woltmann@svenwoltmann.bsky.social · last yr.

Struggling with thread-safe lazy initialization and can’t wait for #StableValues? Two new articles cover Double-Checked Locking and the Initialization-on-Demand Holder idioms in Java: www.happycoders.eu/java/double-... www.happycoders.eu/java/initial... #Java #StableValues #DoubleCheckedLocking

Just published: "Stable Values in Java 25: Finally Initialize Values Safely!" Learn how this new preview feature solves common multi-threading initialization problems. No need to wait for Java 25 - get the details now! www.happycoders.eu/java/stable-... #Java #Java25 #StableValues

Stable Values in Java - Finally Initialize Values Safely!

What are Stable Values and how do you use them? What are Stable Lists, Stable Maps, and Stable Functions? How do Stable Values work internally?

happycoders.eu

This is the moment you've all been waiting for... 🥁 #JUnit Jupiter support for @⁠ParameterizedClass as a companion to the existing @⁠ParameterizedTest support! 🚀 @marcphilipp.de has put a lot of work into this, and we're eager for you to try it out and provide feedback!!!

JUnit Team@junit.org · last yr.

#JUnit 5.13.0-M1 is ready for testing! 🪄 Introduce ClassTemplate and ParameterizedClass support 🗒 Add stdout/stderr redirecting options to ConsoleLauncher 🔍 New test discovery support in EngineTestKit 🐞 Bug fixes and other minor improvements junit.org/junit5/docs/...

Does anyone know the implications for #Java Webstart apps? If I'm not mistaken the JNLP spec explicitly mentions the SecurityManager. Will there be a spec revision or other measures?

Stuart Marks@smarks.bsky.social · 2y ago

Yup, the Security Manager is gone! JEP 486 describes what we did in JDK 24, and JEP 411 explains the rationale. openjdk.org/jeps/411 openjdk.org/jeps/486

I have just merged into Spring Framework main branch the huge commit (3458 files changed) that migrates the codebase to JSpecify annotations. That will allow Spring Framework 7 and related portfolio projects to provide next-level null-safety support to avoid NullPointerException at runtime.

Mapping ZonedDateTime and OffsetDateTime with Hibernate can be an issue. Not all databases support TIMESTAMP_WITH_TIMEZONE, and Hibernate has to convert it. Starting with version 6, you can decide how to handle the timezone information by providing a TimeZoneStorageType. These are your options:

Improve how you architect webapps.

Patterns.dev

Learn JavaScript design and performance patterns for building more powerful web applications.

patterns.dev

Interesting writeup from Stuart Marks @smarks.bsky.social: "Permission checking and handling of privileged operations were a continuing maintenance burden on the JDK code. It’s good be rid of it." 🎉 stuartmarks.wordpress.com/2024/12/12/d... #Java #JDK

Detoxifying the JDK Source Code

There’s been a fair amount of churn through the JDK source code recently, up until Rampdown Phase 1 of JDK 24, which was last week. (RDP1 is similar to what other projects might call “f…

stuartmarks.wordpress.com

#WireMock Now Has an Official #SpringBoot Integration

WireMock Now Has an Official Spring Boot Integration

Embed WireMock directly into Spring for annotation-driven configuration, automatic resource management, and simple declarative configuration of mocked APIs.

wiremock.io

How is this real? Nanowar, Napalm Record... #java based song. #metal music. Unfortunatly no simpler main method 😂 www.youtube.com/watch?v=yup8...

NANOWAR OF STEEL - HelloWorld.java (Source Code Video) | Napalm Records

YouTube video by Napalm Records

youtube.com

📝 "Revisiting the Outbox Pattern" New blog post is out, taking a fresh look at the outbox pattern: how to implement it correctly, is it still relevant, which alternatives exist? 👉 www.decodable.co/blog/revisit...

It is always worthwhile to read changelogs. For example, #liquibase 4.30.0 and above will now collect statistics (#telemetry) with opt-out instead of opt-in. Thanks for nothing. New #java projects will be using #flyway. docs.liquibase.com/analytics/ho...

Alive and kicking! I think that deserves a 24 hour live stream and release party...no? @nipafx.dev 😃

Mark Reinhold@mreinhold.org · 2y ago

There will be 24 JEPs in JDK 24. openjdk.org/projects/jdk... #OpenJDK #Java

Spring Boot 3.4 goes GA! spring.io/blog/2024/11... #spring @spring.io

Spring Boot 3.4.0 available now

Level up your Java code and explore what Spring can do for you.

spring.io

Apache Maven 4.0.0-rc-1 just dropped! I’ve been running 4.0.0 betas for a while now and definitely loved it so far. Make sure to give the new features and major improvements a swing yourself: maven.apache.org/download.cgi If you run into anything make sure to reach out! #Java #Apache #Maven

Epic new #JEPCafe episode!

José Paumard@josepaumard.bsky.social · 2y ago

The episode 23 of the #JEPCafe series is out! Grab it while it's hot! www.youtube.com/watch?v=jqUh...

Welcome everybody! Finally landed on Bluesky as well. Let's see how it goes.🙂