#projectleyden — Public Fediverse posts

Java in April 2026: Leyden Grows Up, Spring Gets Smarter, and the JVM Quietly Reinvents Itself for the AI Era

https://techlife.blog/posts/java-ecosystem-april-2026

#Java #Java26 #ProjectLeyden #SpringBoot #JakartaEE #VirtualThreads #SpringAI #Koog #JVM

💡 Dive into our in-depth analysis of #JDK26 and get a sneak peek at what's coming in #JDK27!

Explore the latest features, improvements, and future plans across #ProjectAmber, #ProjectLoom, #ProjectPanama, #ProjectLeyden & #ProjectValhalla.

Read more on #InfoQ 👉 https://bit.ly/4auF0w0

#Java #JDK #SoftwareDevelopment

💡 Dive into our in-depth analysis of #JDK26 and get a sneak peek at what's coming in #JDK27!

Explore the latest features, improvements, and future plans across #ProjectAmber, #ProjectLoom, #ProjectPanama, #ProjectLeyden & #ProjectValhalla.

Read more on #InfoQ 👉 https://bit.ly/4auF0w0

#Java #JDK #SoftwareDevelopment

🎙️ #InfoQ #podcast - Simon Ritter, Deputy CTO at Azul, dives into the latest innovations in OpenJDK - and shares insights from his experience serving on the JCP Expert Group since JDK 9.

💡 Topics include:
• The six-month release cycle
• Generational Shenandoah
• JDK Flight Recorder
• Project Leyden
• Compact Object Headers

🎧 A must-listen for Java developers: https://bit.ly/4qiEIwZ

#Java #OpenJDK #JVM #SoftwareDevelopment #ProjectLeyden

🎙️ #InfoQ #podcast - Simon Ritter, Deputy CTO at Azul, dives into the latest innovations in OpenJDK - and shares insights from his experience serving on the JCP Expert Group since JDK 9.

💡 Topics include:
• The six-month release cycle
• Generational Shenandoah
• JDK Flight Recorder
• Project Leyden
• Compact Object Headers

🎧 A must-listen for Java developers: https://bit.ly/4qiEIwZ

#Java #OpenJDK #JVM #SoftwareDevelopment #ProjectLeyden

Oh, look. It's @graalvm being ~thrown under the bus~ detached from the train.

Right in time before Java 25 (LTS) has been released.

Gotta love the timing. 🤡

https://blogs.oracle.com/java/post/detaching-graalvm-from-the-java-ecosystem-train

#Java #JVM #GraalVM #ProjectLeyden

Oh, look. It's @graalvm being ~thrown under the bus~ detached from the train.

Right in time before Java 25 (LTS) has been released.

Gotta love the timing. 🤡

https://blogs.oracle.com/java/post/detaching-graalvm-from-the-java-ecosystem-train

#Java #JVM #GraalVM #ProjectLeyden

Deep dive analysis: we examine #JDK25 and predict what features have, or could be, targeted for #JDK26.

Read on #InfoQ: https://bit.ly/3HQJwZY

#Java #ProjectAmber #ProjectLoom #ProjectPanama #ProjectLeyden #JEP #SoftwareDevelopment

Deep dive analysis: we examine #JDK25 and predict what features have, or could be, targeted for #JDK26.

Read on #InfoQ: https://bit.ly/3HQJwZY

#Java #ProjectAmber #ProjectLoom #ProjectPanama #ProjectLeyden #JEP #SoftwareDevelopment

💡 Dive into our in-depth analysis of #JDK24 and get a sneak peek into what's on the horizon for #JDK25.

Read more on #InfoQ 👉 https://bit.ly/3X2gmeL

#Java #ProjectAmber #ProjectLoom #ProjectPanama #ProjectLeyden #JEP

💡 Dive into our in-depth analysis of #JDK24 and get a sneak peek into what's on the horizon for #JDK25.

Read more on #InfoQ 👉 https://bit.ly/3X2gmeL

#Java #ProjectAmber #ProjectLoom #ProjectPanama #ProjectLeyden #JEP

Project Leyden Early-Access Builds

https://jdk.java.net/leyden/

Early Access Build Release Notes:

https://github.com/openjdk/leyden/blob/leyden-ea1-release-notes/README.md

JEP draft: Ahead-of-Time Code Compilation

https://openjdk.org/jeps/8335368

#OpenJDK #ProjectLeyden

Project Leyden Early-Access Builds

https://jdk.java.net/leyden/

Early Access Build Release Notes:

https://github.com/openjdk/leyden/blob/leyden-ea1-release-notes/README.md

JEP draft: Ahead-of-Time Code Compilation

https://openjdk.org/jeps/8335368

#OpenJDK #ProjectLeyden

Project Leyden @ #JVMLS

https://inside.java/2024/08/25/jvmls-leyden/

#OpenJDK #ProjectLeyden

Project Leyden @ #JVMLS

https://inside.java/2024/08/25/jvmls-leyden/

#OpenJDK #ProjectLeyden

With #Spring Framework 6.1 and Spring Boot 3.2 general availability approaching, don't miss this comprehensive blog post on "Runtime Efficiency with Spring" I have just published. #graalvm #projectloom #projectcrac #projectleyden https://spring.io/blog/2023/10/16/runtime-efficiency-with-spring

With #Spring Framework 6.1 and Spring Boot 3.2 general availability approaching, don't miss this comprehensive blog post on "Runtime Efficiency with Spring" I have just published. #graalvm #projectloom #projectcrac #projectleyden https://spring.io/blog/2023/10/16/runtime-efficiency-with-spring

Here’s a short slide deck which Vladimir Ivanov prepared to show how to use the AOT-optimizing features in the current Leyden premain branch with the Spring PetClinic application:

https://openjdk.org/projects/leyden/slides/leyden-premain-petclinic-2023-09-12.pdf

#OpenJDK #ProjectLeyden

Here’s a short slide deck which Vladimir Ivanov prepared to show how to use the AOT-optimizing features in the current Leyden premain branch with the Spring PetClinic application:

https://openjdk.org/projects/leyden/slides/leyden-premain-petclinic-2023-09-12.pdf

#OpenJDK #ProjectLeyden

John Rose on Using Computed Constants to Manage Static State in Leyden

https://cr.openjdk.org/~jrose/leyden/after-computed-constants.html

#OpenJDK #ProjectLeyden

John Rose on Using Computed Constants to Manage Static State in Leyden

https://cr.openjdk.org/~jrose/leyden/after-computed-constants.html

#OpenJDK #ProjectLeyden

Project Leyden: Toward Condensers

We elaborate the concept of composable condensers to introduce a simple, abstract, immutable, data-driven model of applications so that condensers can be expressed as transformers of instances of the model. The model is sufficient to express simple condensers; we include two examples.

More @ https://openjdk.org/projects/leyden/notes/03-toward-condensers

#OpenJDK #ProjectLeyden

Project Leyden: Toward Condensers

We elaborate the concept of composable condensers to introduce a simple, abstract, immutable, data-driven model of applications so that condensers can be expressed as transformers of instances of the model. The model is sufficient to express simple condensers; we include two examples.

More @ https://openjdk.org/projects/leyden/notes/03-toward-condensers

#OpenJDK #ProjectLeyden

#SpringBoot #ProjectLeyden #jvmls

#SpringBoot #ProjectLeyden #jvmls

Draft JEP Announcement: "Computed Constants"

They offer the performance and safety benefits of final fields while offering greater flexibility as to the timing of initialization.

The draft is here: https://openjdk.org/jeps/8312611

More @ https://mail.openjdk.org/pipermail/leyden-dev/2023-July/000178.html

#OpenJDK #ProjectLeyden

Draft JEP Announcement: "Computed Constants"

They offer the performance and safety benefits of final fields while offering greater flexibility as to the timing of initialization.

The draft is here: https://openjdk.org/jeps/8312611

More @ https://mail.openjdk.org/pipermail/leyden-dev/2023-July/000178.html

#OpenJDK #ProjectLeyden

@talios @myfear yeah #ProjectLeyden explicitly calls out that certain condensers (condensations?) are only possible if you disable dynamic class loading, reflection, etc., and so if a user opts-in to use a particular condenser, they will lose access to those features.

Presumably the non-usage of reflection etc. is checked at compile time when you specify you want to apply a given condenser.

@talios @myfear Java already automatically does some of the #optimizations that #constexpr would enable (the OP mentions "Compile-time constant folding").

#ProjectLeyden seems to provide a framework for defining #condensers more easily. Perhaps a library can provide an `@ConstExpr` annotation alongside a #compiler plugin to do exactly what you would expect coming from a C++ background -- such as warn you when your expression isn't actually a compile time constant.