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JDK 27 is out, and now you can read about the performance improvements that were included in it: inside.java/2026/09/28/p...

inside.java

Performance Improvements in JDK 27 - Inside.java

Notable performance improvements in JDK27

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Per Minborg @pminborg.bsky.social · 29/07/2026

The Java Babylon team is #hiring in Nashville! Relocation (from inside the US to Nashville) is available. Know anyone who might be interested? Please send this along: careers.oracle.com/en/sites/job...

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Devoxx France @devoxx.fr · 24/11/2025

Let's go! Our call for paper is now open until January 11th. Join us and share your passion on devoxxfr2026.cfp.dev#/ For more details: www.devoxx.fr/2025/11/21/c...

devoxxfr2026.cfp.dev

Call For Papers

The Call for Papers web app which allows authenticated users to submit talks and the program committee to review and rate them.

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Sharat (Shar) Chander - 🟦🌊 @sharatchander.bsky.social · 11/11/2025

📢Important Update 📢 Many have asked for more time to submit to the 2026 #JavaOne call for papers. We've extended the deadline until Nov 13th at 11:59pm PT. Be sure to submit your #Java proposal(s) before time runs out: ➡️ social.ora.cl/6013A7UXF

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Sharat (Shar) Chander - 🟦🌊 @sharatchander.bsky.social · 06/11/2025

🚨 Time Sensitive 🚨 #Java peers...the 2026 #JavaOne call for papers closes soon. Get your proposals in by the Nov 11 deadline ➡️ social.ora.cl/6017A7UwL

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Sharat (Shar) Chander - 🟦🌊 @sharatchander.bsky.social · 23/10/2025

📢 Announcement 📢 #Java peers, the 2026 #JavaOne call for papers is now LIVE. Please make your submissions by November 11, 2025 5:00 p.m. PT by visiting the conference website: ➡️ social.ora.cl/6013A7UXF

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Per Minborg @pminborg.bsky.social · 01/10/2025

You can't have both laziness and immutability at the same time in #java ... until Lazy Constant arrives ... JEP 526: Lazy Constants (Second Preview) is now a Candidate for JDK 26! Read all about it here: openjdk.org/jeps/526

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Per Minborg @pminborg.bsky.social · 22/08/2025

Looking forward to Java One next year!

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Per Minborg @pminborg.bsky.social · 07/08/2025

My talk "Java Performance Update 2025: From JDK 21 to JDK 25" for @devoxx.com‬ was accepted! I am looking forward to returning to Antwerp and meeting members of the #java community! I will also do another talk: "Finally, final means final - A deep dive into field immutability in Java"

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Sharat (Shar) Chander - 🟦🌊 @sharatchander.bsky.social · 04/08/2025

#Java peers, #JavaOne IS BACK AGAIN IN 2026 (March 17-19). Read our blog to learn more and sign up w/interest if you want to attend, speak, or sponsor: social.ora.cl/6011fdkbH

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Per Minborg @pminborg.bsky.social · 30/04/2025

We integrated #java 's new Stable Values feature just now! This will allow developers and library developers to benefit from the "secret" @Stable annotation that the internal JDK code has been using for years. This can bring significant performance improvements to your code! openjdk.org/jeps/502

openjdk.org

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Per Minborg @pminborg.bsky.social · 22/04/2025

We just integrated a performance improvement to Java String that will provide a ~10x performance boost in some applications where Strings are used as keys and where the associated values are constant foldable. This will make JDK 25 faster. github.com/openjdk/jdk/...

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Alina Yurenko @alina-yurenko.bsky.social · 14/03/2025

You asked, we delivered: we merged FFM support in @graalvm.org Native Image on MacOS/AArch64!🚀😍 github.com/oracle/graal... This means that you can now also build and run locally apps like github.com/mukel/llama3... (cc @stephanjanssen.be :)) Coming soon in GraalVM for JDK 25 EA builds!🎉

github.com

[GR-58659] [GR-58660] Add FFM Support for {darwin,linux}-aarch64 on SubstrateVM by graalvmbot · Pull Request #10856 · oracle/graal

Adds support for AArch64 platforms. This is based on the x86_64 implementation and adapted accordingly.

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Per Minborg @pminborg.bsky.social · 11/03/2025

#java 's new Stable Values API (Preview) was just targeted for JDK 25! Don't miss my talk at #JavaOne about Stable Values: reg.rf.oracle.com/flow/oracle/...

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Per Minborg @pminborg.bsky.social · 06/02/2025

We have been working hard on a new feature for #java called "Stable Values". Don't miss my talk at #JavaOne where I uncover what this can mean in terms of improved performance and maintainability for your Java code. Early bird discounts are still available! reg.rf.oracle.com/flow/oracle/...

reg.rf.oracle.com

Session Catalog

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Per Minborg @pminborg.bsky.social · 03/02/2025

My talk at Devoxx BE on "Java Performance Update" for JDK24 seems to attract much attention — almost 50K views in the first week alone. Find out what you think about it and let me know your thoughts: www.youtube.com/watch?v=rXv2...

youtube.com

Java Performance Update

YouTube video by Java

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billykorando.bsky.social @billykorando.bsky.social · 28/01/2025

Hey #Java Developers, ☕️ JavaOne is happening March 18-20 in Redwood Shores, CA. JavaOne is your opportunity to learn about the future of Java from experts like @pminborg.bsky.social on features like Stable Value Buy your tickets now: inside.java/j1?utm_sourc...

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Per Minborg @pminborg.bsky.social · 21/01/2025

The new StableValues JEP for #java is now one step closer to being finalized: openjdk.org/jeps/8312611 Stable Values will provide the benefits of final fields but with flexible initialization, much like combining the benefits of final and non-final fields.

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Sharat (Shar) Chander - 🟦🌊 @sharatchander.bsky.social · 23/12/2024

#Java developers! @JavaOne is BACK (18-20 Mar). Early bird registration is available through Feb 9th. Please (re)join us at THE conference that started it all... Blog ➡️ social.ora.cl/6015Qne5z Event ➡️ javaone.com #JavaOne #OpenJDK #JDK

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Per Minborg @pminborg.bsky.social · 10/12/2024

The JDK 24 train has left the station, and now we are working on JDK 25. I am hoping to see some cool improvements in this one:

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Per Minborg @pminborg.bsky.social · 03/12/2024

The fork for JDK24 is approaching and we are about to integrate a PR that will improve string-length performance for the Foreign Function & Memory API (FFM) by about 30% for common cases. It started out as a bug (which was also solved) and ended with better performance. github.com/openjdk/jdk/...

github.com

8345120: A likely bug in StringSupport::chunkedStrlenShort by minborg · Pull Request #22451 · openjdk/jdk

This PR proposes to rewrite the StringSupport::chunkedStrlen* methods, fixing a bug in the short_strlen variant for odd offsets (offset % 2 != 0). This PR also improves performance on modern hardw...

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