--- title: "Native Interoperability with JDK 25 and the FFM API" url: https://daily.dev/posts/native-interoperability-with-jdk-25-and-the-ffm-api-mifbpyxrw source_url: https://www.youtube.com/watch?v=_4bEHwJ4Bdk type: video:youtube source: "Java (Official Oracle)" published: 2026-05-10T10:50:57.578Z updated: 2026-05-10T10:51:19.601Z tags: ["java"] reading_time: 50 upvotes: 1 comments: 0 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. # Native Interoperability with JDK 25 and the FFM API **[Java \(Official Oracle\)](https://daily.dev/sources/java-oracle)** · 50 min read · 1 upvotes · 0 comments ## Summary A live-coding talk covering the Foreign Function and Memory (FFM) API finalized in JDK 22+, demonstrated with JDK 25. The presenter walks through the problems with legacy approaches (ByteBuffer, JNI, Unsafe) and shows how MemorySegment, Arena lifecycle management, MemoryLayout, and VarHandles provide safe, deterministic, and efficient access to native and heap memory. Key topics include confined vs. shared arenas, thread confinement, struct-like layouts, multi-dimensional sequence layouts, atomic operations with alignment enforcement, and calling native functions directly from Java without writing C shim code. The JExtract tool is introduced as a way to auto-generate Java bindings from C header files, with an ONNX inference example demonstrating end-to-end native library integration. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Native Interoperability with JDK 25 and the FFM API – Inside.java](https://daily.dev/posts/native-interoperability-with-jdk-25-and-the-ffm-api-inside-java-2zaqbmkxl) · Inside Java · 1 upvotes · 0 comments - [Native Memory in Java: Arenas, Malloc, and Pools](https://daily.dev/posts/native-memory-in-java-arenas-malloc-and-pools-hyaefjfpb) · Foojay.io · 1 upvotes · 0 comments - [Project Panama for Newbies \(Part 1\)](https://daily.dev/posts/project-panama-for-newbies-part-1--nany2cpb1) · Foojay.io · 0 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java) [View this post on daily.dev](https://daily.dev/posts/native-interoperability-with-jdk-25-and-the-ffm-api-mifbpyxrw)