| Inside Java September 2025 — Java 25 is Live! |
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This month we’re excited to share the release of Java 25, which offers new language features, better security, and improved performance. Check out the links below for documentation, the launch stream, and a detailed technical video series.
We also launched a series of six podcasts featuring the first recipients of the Java Community Lifetime Achievement recognition, highlighting contributions to the community.
Plus, we’ve updated our educational resources, we’re continuing to present at Java conferences and user groups, and we’ll be at Oracle’s AI World in October. |
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| Java 25 is Live! |
| Every 6 Months, A New Release of Java is Born |
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JDK 25 delivers sixteen enhancements that are significant enough to warrant their own JDK Enhancement Proposal (JEP), including four preview features, one experimental feature, and one incubator feature. These features cover innovations to the Java language, to the libraries (with two improvements specifically to security libraries), performance and runtime, and monitoring improvements.
For a full review of Java 25, read the blog and view the launch live stream.
— Sharat Chander, Sr. Director, Java Customer & Community Engagement |
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| Along the Road to Java 25 |
| Technical Video Series |
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| Java in Las Vegas! |
| Oracle AI World, Oct 13-16 |
Come to Oracle AI World and hear about the latest features in Java and modernization strategies.
See our Java Sessions and booth! Join us for “The Geek Out Social” Tuesday night. Stop by the Oracle Java pod for your invite. |
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| Duke's Corner Podcast |
| Profiling Java Developers Around the World |
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Duke's Corner explores the Java community and the technology with interesting developer profiles every month.
Jim Grisanzio from Java Developer Relations hosts the program (full audio, video clips), and below are some of the latest episodes. |
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| The Latest on Learning Java |
| Updates from the team at Learn.java |
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| Photo: Crystal Sheldon and Denys Makogon on stage launching Learn.java at JavaOne 2025 in California. |
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| New on Learn.java |
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New content is added to Learn.java regularly. Here are some updates:
- All the tutorials and practice using the Java Playground are now updated to the latest version for Java 25.
- We added tutorials and practice for the following topics: enum, loops, and the conditional operator.
- Our Educator Briefing has been updated with the newly released Java features that will impact education most.
Webinar Season
The webinars offered by the Learn.java team are typically short, between 15 and 30 minutes. They are meant to easily plug into your day. You can learn and gain ideas quickly without having to carve out a lot of time in your day. These are recorded and will be posted on Learn.java as well as our YouTube playlist.
Our fall webinar season has kicked off with our first webinar called “Data, Data, Data…”. In this webinar, we explored the various ways data can be stored through the design and creation of a deck of cards. Look for future webinars that will expand Java knowledge by refining and adding more features to this project with the goal of having a card game.
We also hosted a webinar titled “What’s new with Java 25?”. This webinar is meant to be direct to teachers and will focus on Compact Source Files and Instance Main Methods. This feature can revolutionize how Java is being taught, making it easier for beginners to get started. In this session, we will explore how teachers can adjust their teaching to use these advances.
Teacher Spotlight
Hear from Lisa Phillips, AP Computer Science A teacher at Brookwood High School, as she shares the way she experiences her students benefitting from starting in Java. Her story as well as other professors can be found here. |
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| Community Developer Events |
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Photo: JChateau in La Loire Vallée, France.
Here is a selection of community developer events involving the Oracle Java Developer Relations team and engineers from the Java Platform Group.
To follow all of our events, check out the Events page on Dev.java. |
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| Meet us out in the Java Community! |
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Events
Devoxx Belgium: Antwerp Belgium, October 6-10
dev2next: Colorado Springs, Colorado September 29 – October 2
Oracle AI World: Las Vegas, Nevada, USA, October 13-16
Jfall: Ede, Netherlands, November 6
JChateau: La Loire Vallée, France, March 4-8, 2026
JChateau: An Un-Conference Highlight in France
In early 2026, the Paris JUG will host our 5th annual JChateau in La Loire Vallée, France, March 4-8. JChateau is an unconference that welcomed 38 participants from 9 nationalities in 2025. We will meet again this year in the beautiful region of La Loire Vallée near Paris for 3 days to talk about Java, choosing among 27 sessions, visiting several of the many iconic châteaux of the region, tasting good food and wine, and participating in a pastry workshop lead by a French pastry chef. All the details, registration info, and agendas from the past editions are here. — José Paumard, Java Developer Relations
NYJavaSIG: Celebrating 30 Years of Java
Congratulations to the NYJavaSIG for their 30th anniversary! That's epic! Running a successful Java User Group (JUG) for three decades is a wonderful achievement. And we also see that JCConf, which is run by TWJUG, also celebrated 30 years of Java during their annual conference in Taipei where our own José Paumard delivered the opening keynote.
JJUG: Japan Java User Group Celebrates Java 25
JJUG held an event on September 16 for 80 developers in Tokyo to celebrate the release of Java 25. There were two sessions: one covering the Foreign Function & Memory API (FFM) as a feature added between Java 21 (the previous LTS) and Java 25, and the other introducing JEP 514 and JEP 515 as new features providing an overview of Project Leyden. David Buck presented on FFM, and Koichi Sakata presented on Leyden. David and Koichi are engineers in Oracle’s Java Platform Group in Tokyo.
Java DevRel’s JUG Sessions
Billy Korando from Java DevRel presented sessions on testing, fixing bugs with JFR, and Java 25 to JUGs in Florida (Jacksonville, Miami, Tampa) in September. Also, Java DevRel's Nicolai Parlog will be presenting a Java 25 session at the Karlsruhe JUG in Germany in October. And José Paumard presented to the Paris JUG in September as well.
Devoxx Belgium
The Java Platform Group (JPG) will be sponsoring and will have a booth at Devoxx Belgium October 6-10, so stop by for some Java conversations! Also, we’ll have many engineers participating at the event. Look for technical sessions from the Java DevRel team and engineers in JPG: Georges Saab, José Paumard, Ana-Maria Mihalceanu, Lize Raes, Nicolai Parlog, Paul Sandoz, Per Minborg, Stuart Marks, and Viktor Klang. |
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| JavaOne 2026 |
| Subscribe for Updates! |
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Photo: Brian Goetz, JavaOne 2025.
As we’ve announced previously, JavaOne 2026 will be held March 17-19 in California. If you’ve never been to JavaOne, check out JavaOne 2025 (videos, photos) and JavaOne 2022 (videos, photos).
Next year will be better than ever! If you want to attend, speak, or sponsor, subscribe here to get the latest JavaOne 2026 news. |
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| Quote of the Month |
| Voices from the Community |
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“Every company is using Java, or most companies are. And if they don’t, they will be in the future. And I think that is a really interesting comment because it speaks to the fact that it might not matter to a student where you start as long as you learn the fundamental processes of solving problems with code and becoming an engineer, a software engineer, you’re going to have to learn multiple technologies. And once you discover Java, which you certainly will, then Java speaks for itself.”
— Mattias Karlsson, a Java Champion from Stockholm, Sweden, commenting during a podcast conversation about students learning Java and the pervasiveness of Java in the software market. |
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| Java DevRel Team |
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Ana-Maria Mihalceanu
Billy Korando
Chad Arimura
Crystal Sheldon
David Delabassée
Denis Makogon
Heather Stephens
Jim Grisanzio
José Paumard
Lize Raes
Melissa Jacobus
Nicolai Parlog
Sharat Chander |
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| Connect with us on Social Media |
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