--- title: "Better Tools for Immutable Data" url: https://daily.dev/posts/better-tools-for-immutable-data-tj6xodwl3 source_url: https://www.youtube.com/watch?v=BdLND9D81lI type: video:youtube source: "Java (Official Oracle)" published: 2026-06-21T10:29:19.326Z updated: 2026-06-21T12:41:33.914Z tags: ["java", "jvm", "jdk"] reading_time: 50 upvotes: 2 comments: 1 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Better Tools for Immutable Data **[Java \(Official Oracle\)](https://daily.dev/sources/java-oracle)** · 50 min read · 2 upvotes · 1 comments ## Summary We'll review new and upcoming Java features that improve the convenience, reliability, and performance of immutable data, including: - Records, record patterns, and derived record creation - Value classes and objects - Early field initialization with flexible constructor bodies - The lazy constants API - Initialization diagnostics for static final fields - Unsafe reflective mutation or deserialization and the marshalling API as an alternative - In the future: immutable arrays? We'll discuss how these features complement each other, what sorts of JVM optimizations they enable, and how to decide when they're a good fit for an application. Presented by Dan Smith (Oracle) at JavaOne 2026 (CA, March 2026). See also https://youtu.be/fFocVFEe2TI All https://www.youtube.com/playlist?list=PLX8CzqL3ArzUMVSzm-z_-if8BIB55EGl4 talks. * https://openjdk.org/projects/amber/ * https://inside.java/tag/amber * https://openjdk.org/projects/valhalla/ * https://inside.java/tag/valhalla Tags: #Java #JavaOne LRN1438 18 203 ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 0 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java), [#jvm](https://daily.dev/tags/jvm), [#jdk](https://daily.dev/tags/jdk) [View this post on daily.dev](https://daily.dev/posts/better-tools-for-immutable-data-tj6xodwl3)