Mastodawn

Your #Java app didn’t grow—your heap did. Wanderson Xesquevixos digs into #JDK25’s Compact Object Headers and shows how a simple flag can cut committed heap by ~30% in object-heavy workloads.

Read before tuning GC again: https://javapro.io/2026/02/10/mastering-memory-efficiency-with-compact-object-headers-in-jdk-25/

#Java #JVM #Performance @openjdk

Markus Eisele Mar 9

Good news for Java developers: Temurin JDK 25 for x64 Windows is now available in the Red Hat Customer Portal, giving you another supported, production‑ready option for running Java on Windows.
https://developers.redhat.com/articles/2026/03/06/temurin-jdk-25-now-available-red-hat-customer-portal
#java #jdk25

Temurin JDK 25 now available in Red Hat Customer Portal | Red Hat Developer

Red Hat Customer Portal now offers Temurin JDK 25 for 64-bit Windows, providing another supported, production-ready option for running Java on Windows

Red Hat Developer

JAVAPRO Mar 8

Concurrency used to mean trade-offs: simplicity vs scalability. With #VirtualThreads, #Java challenges that. Mihaela Gheorghe-Roman explores benchmarks, migration steps, & what #JDK25 adds to #ProjectLoom. Still afraid of blocking I/O?

Dive in: https://javapro.io/2026/03/05/java-25-and-the-new-age-of-performance-virtual-threads-and-beyond/

@openjdk

JAVAPRO Feb 13

Most memory problems aren’t leaks—they’re structural. Wanderson Xesquevixos breaks down how Compact Object Headers in #JDK25 shrink per-object overhead & why this finally matters in containers & #Microservices.

Benchmark-backed, no hype: https://javapro.io/2026/02/10/mastering-memory-efficiency-with-compact-object-headers-in-jdk-25/

#JVM @openjdk

Jonathan Meek Jan 12

Got some time today to upgrade my application, bookLister, to using #Kotlin 2.3 and #JDK25 along with some general dependency upgrades. Does the app do anything yet? Nope (Just will give a status on its /healthcheck URI). It is up to date with the latest and greatest that's possible. You bet!

Markus Eisele Dec 4

Java finally gets native superpowers.

Just published a new hands-on tutorial where we call ImageMagick directly from Java 25 using the Foreign Function & Memory API.
No JNI. No C glue. Just pure Java + Quarkus doing real image processing.

If you’ve wondered how Python calls fast C libraries… this is how Java does it now.

👉 https://www.the-main-thread.com/p/java-ffm-api-quarkus-imagemagick-tutorial

#Java #Quarkus #FFMAPI #ImageMagick #JDK25

Ted M. Young Nov 29

Yay, one big step closer to the release of #IntelliJIDEA 2025.3! Check out the release candidate: https://blog.jetbrains.com/idea/2025/11/intellij-idea-2025-3-release-candidate/

#Java #JDK25 #Junit6 #SpringBoot4

IntelliJ IDEA 2025.3 Release Candidate Is Here | The IntelliJ IDEA Blog

The Release Candidate for IntelliJ IDEA 2025.3 is now available, and we’re closing the Early Access Program for this development cycle. Thank you to everyone who evaluated the EAP builds,

The JetBrains Blog

Habr Nov 23

Как прошёл Java Rock Stars Meetup в сентябре (и чего ожидать в декабре)

25 сентября в Москве прошёл Java Rock Stars Meetup, в котором было всё: доклады, холивары о будущем Spring в России и много нетворкинга. Пока готовился обзор прошедшего митапа, мы уже успели организовать новый и заключительный в этом году Java Rock Stars Meetup, который пройдёт 2 декабря в Москве в привычном месте — лофте Casa Picassa. Регистрируйтесь на митап

https://habr.com/ru/companies/axiomjdk/articles/969344/

#java #jdk25 #axiomjdk #axiom_jdk #митап #митап_в_москве #приглашение #обзор #spring #kotlin

Как прошёл Java Rock Stars Meetup в сентябре (и чего ожидать в декабре)

Привет, Хабр! Не прошло и трёх месяцев с митапа, как мы выпускаем обзор))) Да, задержали, да сильно, но лучше поздно, чем никогда, так ведь? Лирическое отступление закончили, теперь переходим к сути....

Хабр