Java

Java 25 was released on September 16th! Our hosts Ana-Maria Mihalceanu, Billy Korando, and Nicolai Parlog led you through the features and changes introduced in Java 25, as well as covered the key updates between Java 21 and 25.

JDK 25 is available at https://www.oracle.com/java/technologies/downloads/ and https://jdk.java.net/25/

👉 Don’t forget to check out the https://www.youtube.com/playlist?list=PLX8CzqL3ArzXJ2_0FIGleUisXuUm4AESE playlist.

~~~ POLLS ~~~

Q1: What's the latest Java version you use in production?
- Java 21 (49%)
- Java 11 or 17 (25%)
- Java 8 or older (12%)
- Java 24 or 25 (12%) 

Q2: When exploring new Java features, what helps you learn the best?
- Tutorials and hands-on experiments (37%)
- Videos or talks, e.g. conferences (31%)
- JEPs/docs directly (21%)
- AI-powered code assistants (9%)

Q3: What best describes your upgrade strategy?
- Within 12 months (35%)
- Within a few days of the release (29%)
- Before universe's heat death  (19%)
- Within two years (15%)

Q4: What feature(s) are you most looking forward to in Java 25?
- Virtual threads & scoped values (55%)
- Ahead-of-Time computation (24%)
- Stream gatherers (13%)
- Paving the on-ramp features (6%)

Q5: What keeps you coming back to Java after all these years? 
- Stability, security and reliability (33%)
- Huge ecosystem & vibrant community (28%)
- Continuous evolution (25%)
- Tooling and JVM performance (13%)

Q6: What area of Java 25+ do you expect to impact your daily coding the most?
- Better concurrency (VT, SC, SV) (44%)
- Flexible constructor bodies (20%)
- Stream gatherers (20%)
- JDK tooling changes (14%)

~~~ CHAPTERS ~~~

0:00 Welcome and Event Agenda 🗓️
2:11 Performance Updates from Java 21 to 25 with Mikael Vidstedt 📈
15:21 Method Timing & Tracing with JDK Flight Recorder ✈️
24:07 Using Flexible Constructor Bodies 🤸
28:43 Exploring Java's On-Ramp and Scripting Features Post-JDK 21 🧩
48:52 Amber, OpenJDK, and Community with Ted Young 🌎
1:02:01 Polls I
1:10:16 Upgrading to Java 25 with Dr. Deprecator ⬆️
1:24:30 Security Updates with Poonam Parhar 🔐
1:41:22 Scoped Values with Stuart Marks🔬
1:53:54 Stream Gatherers 🌊
2:06:35 Polls II
2:09:30 Evolution of Java AI Libraries with Chad Arimura📚
2:19:21 Ahead-of-Time In-Action 🏋️
2:24:39 Beyond Java 21 at Netflix Scale with Paul Bakker 🍿
2:49:54 Polls III
2:55:44 API Updates Post-Java 21 🔌
3:08:11 Java for AI with Paul Sandoz 🤖
3:38:51 Growing the Java Platform with Georges Saab☕️
3:57:22 Closing 🏁

Tags: #Java #OpenJDK #JDK25

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