From native code gems to Java treasures with jextract
summary
Project Panama’s Foreign Function and Memory API is final in JDK 22 and jextract automates bindings: it parses C .h files and emits Java FFM code that calls native libs. Demos show a C time function returning correct time, a Python image generator producing a file, an OpenGL teapot rendering after adding Mac compile flags, and a Rust hello_world exposed via cbindgen and callable from Java. Warnings appear for unresolved types but jextract parses .h and generates Java bindings and offers trace downcalls to debug native calls.
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chapters (7)
- 0:00Introduction to jextract
- 4:44Time translator demo
- 12:24Python image maker demo
- 16:59OpenGL teapot demo
- 26:25Rust hello world demo
- 29:48FFM API and jextract summary
- 31:56Resources and next steps
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