Loic Mathieu on foojay.io - Friends of OpenJDK

Foojay Podcast #92: Java 26 Is Here: What's New, What's Gone, and Why It Matters in 2026

Mon, 16 Mar 2026 06:58:00 +0000

Welcome to another episode of the Foojay Podcast! In this episode, we’re talking about Java 26, released on March 17 in the year 26. Again, right on schedule with Java’s six-month release cadence.

Now, Java 26 is not a Long Term Support (LTS) release; that was Java 25. But don’t let that fool you into thinking there’s nothing interesting here. This release brings ten JDK Enhancement Proposals (JEPs). They cover everything from performance improvements to long-overdue cleanups. Of those ten JEPS, five are new features, and we also get five preview/incubator features.

Java 26: What’s New?

Tue, 03 Mar 2026 10:00:28 +0000

This article was first published in my personal blog: Java 26: What’s new? and is part of a serie on what’s new on the last versions of Java ).

Now that Java 26 is features complete (Rampdown Phase Two at the day of writing), it’s time to walk through all the functionalities that bring to us, developers, this new version.

After Java 25 and its 18 JEPs, Java 26 arrives with a small number of JEPs, 10, with very few new features.

Flaky Tests: a journey to beat them all

Tue, 13 Jan 2026 13:00:07 +0000

“Sleep is not a synchronization primitive.”

Every test engineer, eventually

What’s a flaky test?

A flaky test is a test that sometimes passes and sometimes fails without any code changes. They’re the by‑product of non‑determinism: timing, concurrency, eventual consistency, network hiccups, clock drift, resource contention, and (our favorite) tests leaking state across runs.

Kestra is an open-source declarative orchestration platform designed to run, coordinate, and monitor large-scale, event-driven workflows. It is built to handle parallelism, asynchronous execution, and distributed systems at scale, exactly the kind of environment where determinism is hard and flaky tests tend to emerge.

Java 25: What's New?

Wed, 03 Dec 2025 09:02:49 +0000

This article was first published in my personal blog: Java 25: What’s new? and is part of a serie on what’s new on the last versions of Java .

Now that Java 25 is out, it’s time to walk through all the functionalities that bring to us, developers, this new version.

Java 25 is the new Long-Term Support (LTS) version, containing no less than 18 JEPs. Even if this isn’t as good as the 24 JEPs in Java 24, it’s still a pretty significant number. No big news on the program, but a number of nice little ones anyway.

Java 24 : What's New?

Wed, 26 Feb 2025 09:58:53 +0000

Java 24 will be available soon, on March 18th. What are all the functionalities that this version brings to us as developers?

Java 24 contains not less than 24 JEPs, a record and above all an eponymous figure!

JEP 404: Generational Shenandoah (Experimental)

Shenandoah is a Garbage Collector (GC) originally developed by RedHat and included in OpenJDK. It reduces GC pause times by performing evacuation work concurrently to application threads.

Java 23: What’s New? | Foojay.io today

Wed, 04 Sep 2024 09:19:35 +0000

As soon as Java 23 is out, it’ll be time to walk through all the functionalities that this version bring to us as developers.

First of all, something has happened that, to my knowledge, has never happened before in a Java release: a preview feature has been removed! The String Templates feature, which appeared as a preview feature in Java 21, has been removed. A global redesign of this feature will be carried out, as it had given rise to much debate and didn’t seem to meet the community’s expectations.

Writing a Data Orchestrator in Java

Thu, 02 May 2024 19:43:32 +0000

A data orchestrator is a platform to schedule, organize, and monitor data-oriented workflows. A workflow is a set of tasks, most data orchestrators come with built-in tasks for a wide range of technologies and provide support for custom processing via a scripting language. A data orchestrator can have multiple types of triggers to start a workflow.

Most Data orchestrators are written in Python.

Most Data orchestrators mandate that you write Python code.

Java 22: What’s New?

Mon, 18 Mar 2024 14:10:04 +0000

As soon as Java 22 is out, it’ll be time to walk through all the functionalities that this version bring to us as developers.

JEP 461 - Stream Gatherers (Preview)

Enhances the Stream API with support for custom intermediate operations. This is a preview API.

The Stream API provides a fixed set of intermediate and terminal operations. It allows terminal operations to be extended via the Stream::collect(Collector) method, but does not allow intermediate operations to be extended. Some operations are missing or others are possible via a set of operations or via an operation that doesn’t fully match what’s needed.

Foojay Podcast #45: Welcome to Java 22

Mon, 18 Mar 2024 10:31:53 +0000

Last September, we got Java 21, a Long Term Support (LTS) version with eight new big features and seven incubator or preview features.

Does Java 22 also bring that much innovation, or is it just a bug-fix release?

And what needs to be done to get such a release published on time? Let’s find out…

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