Project Valhalla - Inside.java

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News and views from members of the Java team at Oracle

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Project Valhalla

2026

JavaNext Language Features by Dan Smith on June 7, 2026
On Default Values for Primitive-Like Classes by John Rose on May 21, 2026
How the JVM Optimizes Generic Code by John Rose on April 19, 2026
Episode 46 “Java's Plans for 2026” [IJN] by Nicolai Parlog on February 20, 2026
Optimizing Java Class Metadata in Project Valhalla by Joel Sikström on February 7, 2026
Java's Plans for 2026 - Inside Java Newscast #104 by Nicolai Parlog on January 8, 2026

2025

Java's 2025 in Review - Inside Java Newscast #103 by Nicolai Parlog on December 18, 2025
Valhalla? Python? Withers? Lombok? - Ask the Architects at JavaOne'25 on December 15, 2025
Episode 42 “From Sumatra to Panama, from Babylon to Valhalla” with John Rose by John Rose, Nicolai Parlog on December 10, 2025
Help, My Java Object Vanished (and the GC is Not at Fault) by Paul Hübner on November 28, 2025
Try the New Valhalla EA Build - Inside Java Newscast #100 by Nicolai Parlog on November 6, 2025
Value Classes Heap Flattening - What to expect from JEP 401 #JVMLS by Frederic Parain on October 31, 2025
Try Out JEP 401 Value Classes and Objects by Dan Smith on October 27, 2025
Java for AI by Paul Sandoz on October 14, 2025
Episode 40 “Amber & Valhalla - Incremental Design and Feature Arcs” with Brian Goetz by Brian Goetz, Nicolai Parlog on September 28, 2025
A New Model for Java Object Initialization by Dan Smith on July 27, 2025
Java for AI by Paul Sandoz on May 3, 2025
Where Is the Java Language Going? by Brian Goetz on April 20, 2025
Refining var-handles in Valhalla by John Rose on March 28, 2025
Java's Plans for 2025 - Inside Java Newscast #83 by Nicolai Parlog on January 16, 2025

2024

Valhalla - Java's Epic Refactor by Brian Goetz on December 16, 2024
Big News from Project Valhalla - Inside Java Newscast #77 by Nicolai Parlog on October 3, 2024
Java Initialization 2.0 #JVMLS by Dan Smith on September 1, 2024
Best of Java Performance - Inside Java Newscast #75 by Ana-Maria Mihalceanu on August 29, 2024
Type Specialization of Java Generics #JVMLS by Remi Forax & Loris Creantor (guest) on August 27, 2024
Valhalla - Where Are We? #JVMLS by Brian Goetz on August 23, 2024
Java and AI? - Inside Java Newscast #72 by Nicolai Parlog on July 4, 2024
Encodings for Flattened Heap Values by John Rose on June 11, 2024
Java's Plans for 2024 - Inside Java Newscast #61 by Nicolai Parlog on January 18, 2024

2023

Brian Goetz Answers Your Java Questions by Brian Goetz, Nicolai Parlog on October 20, 2023
JVMLS 2023 Keynote by Georges Saab, Mark Reinhold on September 14, 2023
JVMLS - Value Objects in Valhalla by Dan Smith on September 5, 2023
Introduction: Q-descriptors and v-bytecodes by John Rose on August 22, 2023
Design Document on Nullability and Value Types by Brian Goetz on June 2, 2023
Java Next - From Amber to Loom, from Panama by Nicolai Parlog on April 2, 2023
Java's Plans for 2023 - Inside Java Newscast #40 by Nicolai Parlog on January 19, 2023

2022

Quality Outreach Heads-up - Valhalla: LW4 Early-Access Builds by David Delabassee on December 13, 2022
Java Value Objects in Action with Valhalla - JEP Café #15 by José Paumard on December 6, 2022
Java To The Future by Billy Korando on September 14, 2022
Java Q&A - Inside Java Newscast #30 by Nicolai Parlog, Billy Korando on July 28, 2022
Java Next - From Amber to Loom, from Panama to Valhalla by Nicolai Parlog on May 9, 2022
Java's Plans for 2022 - Inside Java Newscast #18 by Nicolai Parlog on January 13, 2022

2021

State of Valhalla by Brian Goetz on December 27, 2021
The Vector API in JDK 17 by Paul Sandoz on September 23, 2021
State of Valhalla, Section 3: JVM Model by John Rose, Brian Goetz on April 21, 2021
New candidate JEP: 401: Primitive Objects (Preview) by Mark Reinhold on March 18, 2021
New candidate JEP: 402: Unify the Basic Primitives with Objects (Preview) by Mark Reinhold on March 18, 2021

2020

Terminology update: Primitive Objects by Dan Smith on October 5, 2020
New candidate JEP: 390: Warnings for Value-Based Classes by Mark Reinhold on September 24, 2020
Early steps on the road to customization by John Rose on August 26, 2020
Background: how we got the generics we have by Brian Goetz on June 24, 2020
State of Valhalla by Brian Goetz on March 1, 2020
Valhalla - Finding the primitives by Brian Goetz on February 18, 2020

2019

State of Valhalla by Brian Goetz on December 12, 2019
Project Valhalla Update by Brian Goetz on July 30, 2019

2018

InfoQ Podcast with Brian Goetz by Brian Goetz on December 23, 2018
LWorld: the next steps on the journey to Valhalla by David Simms on July 31, 2018

2017

Programming with Minimal Values by Maurizio Cimadamore on July 31, 2017
Your next JVM: Panama, Valhalla, Metropolis by John Rose on April 17, 2017

2016

Adventures in Valhalla Reflection by Maurizio Cimadamore on August 1, 2016
Reflection Manifesto by Maurizio Cimadamore on June 30, 2016