Bare Metal Java

on YouTube ↗46m

" summary

Describes Project Panama’s native memory and FFI features for Java 17/19: MemorySegment and ResourceScope for safe lifecycle control, MemoryLayout and carrier-type handles, atomic/get/set access, and a C linker that exposes C functions as Java MethodHandles. Shows using Panama instead of Unsafe on 64-bit x86 and ARM, discusses the 5–6 year incubation of the APIs, and demonstrates a working SDL-based game renderer implemented by calling native SDL through Panama.

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" chapters (10)

1. 0:00Introduction
2. 2:11Native interface problem
3. 5:49External memory projects history
4. 9:03New native memory API basics
5. 15:56Memory layout and data structures
6. 20:51Memory lifetime management
7. 23:20Calling native code from Java
8. 33:50Developer reflections and dreams
9. 36:42Demo: Java game with SDL
10. 44:35Summary

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