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"Immutable Data Beyond Value Classes" [AtA]

Oct. 29, 2026

Object-Oriented Programming offers a lot of flexibility for modelling diverse domains but not all elements need that flexibility. Data, specifically, is often better modeled by simple, immutable types and while OOP does not prevent that, it can make it a bit cumbersome. So in recent and coming year…

00:53:43

"OpenJDK Bug Fixing, JavaOne, and JDK 28" [IJN]

Oct. 17, 2026

On August 18th, 2026 a mail pops up on the hotspot-compiler-dev mailing list and it describes something that is not supposed to happen: a serious new bug in a JDK release candidate phase, just a few weeks before general availability. Apparently, under very specific circumstances, some buffer conten…

00:08:13

"Security in Java" [AtA]

Sept. 24, 2026

Given how prevalent Java is on web servers throughout the internet, security in Java is of critical importance. There's the security of the JDK itself, of course, which is overseen by the OpenJDK Security Group, which you should report JDK vulnerabilities to. But there are also the algorithms and f…

00:33:17

"AOT Caching - Netflix' Practice vs OpenJDK's Theory" [I/O]

Sept. 17, 2026

Java projects that want to reduce their launch times need to look into Java's new ahead-of-time capabilities. A training run is used to populate a cache that, in production, allows the JVM to short-circuit many operations, like class loading and linking, profile gathering, and - probably soon - JIT…

01:11:17

"Declassifying the Java 27 Release!" [IJN]

Sept. 10, 2026

Java 27 is heading for release on September 15th. As with every release of the JDK there are a host of changes that will impact developers, from new features, to changes in behavior of existing features. In this episode of the Inside Java Newscast we will be "declassifying" all the developer impact…

00:15:37

"Operator Overloading with Type Classes" [AtA]

Aug. 27, 2026

OpenJDK's Project Valhalla is improving Java's support for custom numerical types. That goes beyond value types and also encompasses explorations into operator support. While Java is extremely unlikely to ever allow arbitrary operator definitions, it may well support limited operator overloading, s…

00:41:39

"Keeping Up with the Java Release Train" [I/O]

Aug. 20, 2026

00:34:26

"JSON API, Valhalla Progress, LTS ❤️ PQC" [IJN]

Aug. 15, 2026

JEP 540 proposes to incubate a simple JSON API and is currently proposed to target JDK 28. The pull request for Project Valhalla's JEPs 401 and 539 were merged and value types are available as a preview feature in the latest JDK 28 early-access builds. Oracle plans to backport post-quantum cryptogr…

00:10:28

"Embracing Virtual Threads with Helidon" [I/O]

Aug. 6, 2026

Helidon 4.4 was released in April 2026 and stands out from other web frameworks by embracing new Java features as early as possible, particularly virtual threads and ahead-of-time computation. It is also aiming to become an OpenJDK project in the coming months. In this "Input/Output" episode of th…

00:14:05