Upgrading from Java 21 to 25: What Actually Breaks
Seven changes between Java 21 and 25 that break builds, startup or behaviour, each reproduced on both JDKs, and how to find them before you …
OpenJDK Migration
The Java 21 Doomsday Clock Countdown
Oracle's free NFTC license for Java 21 has expired, and the October 2026 quarterly update is the first one enterprises have to pay for. Here …
Where production policy belongs: building Eliya in public
Where does production policy belong in a managed runtime? The thesis behind Eliya, an opinionated OpenJDK 25 distribution, and the one flag …
6,717 viewsFoojay Podcast #63: How do we keep your Java applications up to date and secure?
Do you want to bring your system from Java 8 to 23? Did you know that Java 17 already has 13 security releases? And that you can use tools …
3,852 viewsConnecting Resilience to Performance in Relation to OpenJDK
Given the requirements of the DORA Act, which mandates strong operational resilience for financial institutions in the EU, leveraging a JVM …
Master Your Journey in the School of OpenJDK Migration
The School of OpenJDK Migration is totally free and self-paced. Do yourself a favor and start preparing about OpenJDK migration today.
Book Review: "OpenJDK Migration for Dummies"
A comprehensive and informative guide for those looking to navigate the complex world of JDK distributions and licenses,
Review: OpenJDK Migration for Dummies
Have you been thinking of moving away from the Oracle JDK to OpenJDK? The book "OpenJDK Migration for Dummies", written by Simon Ritter of …
Book review: "OpenJDK Migration for Dummies"
Is "OpenJDK Migration for Dummies" worth reading? I'd say so!
Well Worth My Time: "OpenJDK Migration for Dummies"
Good job of establishing the motivation for using OpenJDK and providing actionable steps for how to pursue that migration.