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HTTP/2 301 server: AkamaiGHost content-length: 0 location: https://openjdk.org/projects/panama date: Sat, 19 Jul 2025 02:27:56 GMT HTTP/2 301 content-type: text/html location: /projects/panama/ content-security-policy-report-only: default-src 'self' *.openjdk.java.net feedburner.google.com; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' feeds.feedburner.com *.statcounter.com statcounter.com; img-src 'self' data: *.statcounter.com *.openjdk.java.net feedburner.google.com; frame-ancestors 'none'; report-uri https://openjdk.report-uri.io/r/default/csp/reportOnly x-frame-options: SAMEORIGIN x-xss-protection: 1; mode=block x-content-type-options: nosniff x-akamai-transformed: 0 - 0 - date: Sat, 19 Jul 2025 02:27:56 GMT set-cookie: _abck=916C6653176263DB7BDA2C2AE051D2E2~-1~YAAQNAHAReGEAR2YAQAA9HKCIA5kiTqKcdnmb14sLHxT3DMfoQ9cvHXbiyV3QO7CdpPIWD/F6+wV2ChLM/fISKktt57HeandCyrtNk2qTHigCwveo+N+GoRXQJEC5Jf820cw5LdQpewvf9TCG2eolo7bYNHDsinhX1wXOufh4yVHdtNvvOAQpL2wPtgdKtmGGLx48hgh0Iixtck/jzXycPHOxgiM+F6piAAiFpaBvL1ABPSWTkOnrq4N8hfzGe/NfhCFd1qxhFAkVQuMgwcXi12smrOTCMQ3ACt248S9SLSj32XDyoYaLZzFPYfKeyrAyPmE43b4aqvGPI8ZOlcLPJDYjdifF9eIoBMRm+5eKZ2kwzDZa0W6ZhKycZ5QrvM1P+Rhqc2ZNvnIrnjIql9tmxYlGw1bD6sM8kC7sPaEte7+sJYeXxjnMgq2UlApEYIvyao3vGY=~-1~-1~-1; Domain=.openjdk.org; Path=/; Expires=Sun, 19 Jul 2026 02:27:56 GMT; Max-Age=31536000; Secure set-cookie: bm_sz=5D2E171A898A6B0F8B47686D7D8742EA~YAAQNAHAReKEAR2YAQAA9HKCIBxow5hwAEcb19MI0lZkQ9QQ/GOehl01p8J1lgZWL9ToAVeNlaXLuG9VdreNHhOad3/8ga38bQgWMd354OQUfFkEugWP10Mkb+WNkBQEXGEkLCb0bp2R+c2H0KQXQkCN/kyy50ALpxcT0ze5OE1Iud1njonNnGuYJh9fvcCsfcmlrrcNl36+U94AjIgrvwxj3v2X2zjhdYJBowxEi7JmfxRRBFJb5sK2FWKudDD8LTCA1UdNjGqlFsdrqqBeLr5+bEV91pnC93XKNU71yWga2tpr/XjkhrnuT/xk7yTR6chBEtz4S6KSbxDEx0l6RsP0t4xak9h7qWu/6XhS9b1RwbBPvafviUc=~4274229~4405557; Domain=.openjdk.org; Path=/; Expires=Sat, 19 Jul 2025 06:27:56 GMT; Max-Age=14400 HTTP/2 200 content-type: text/html last-modified: Thu, 05 Jun 2025 17:17:24 GMT vary: Accept-Encoding etag: "6841d124-2ee4" content-security-policy-report-only: default-src 'self' *.openjdk.java.net feedburner.google.com; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' feeds.feedburner.com *.statcounter.com statcounter.com; img-src 'self' data: *.statcounter.com *.openjdk.java.net feedburner.google.com; frame-ancestors 'none'; report-uri https://openjdk.report-uri.io/r/default/csp/reportOnly x-frame-options: SAMEORIGIN x-xss-protection: 1; mode=block x-content-type-options: nosniff accept-ranges: bytes x-akamai-transformed: 0 - 0 - content-encoding: gzip date: Sat, 19 Jul 2025 02:27:57 GMT content-length: 3517 OpenJDK: Panama

Project Panama: Interconnecting JVM and native code

We are improving and enriching the connections between the Java virtual machine and well-defined but “foreign” (non-Java) APIs, including many interfaces commonly used by C programmers.

To this end, Project Panama will include most or all of these components:

native function calling from JVM
native data access from JVM or inside JVM heap
new data layouts in JVM heap
native metadata definition for JVM
header file API extraction tools (jextract)
native library management APIs
native-oriented interpreter and runtime “hooks”
class and method resolution “hooks”
native-oriented JIT optimizations
tooling or wrapper interposition for safety
exploratory work with difficult-to-integrate native libraries

Community

This Project is sponsored by the Hotspot Group.

Mailing lists & News
- panama-dev — Foreign Function & Memory API, Vector API
- jextract-dev — jextract tool
- Stay tuned on latest Panama development at Inside.java
Design documents
- Panama foreign memory acccess
- Panama foreign function support
- Panama jextract usage examples
- early problem space overview: the isthmus in the VM
JEPs
- Foreign Function & Memory API: JEP-424
- Vector API: JEP-426
Talks

Repository organization

Project Panama is designed to incubate a series of components for eventual inclusion in the JDK, via curated merge. Project Panama features are being actively developed in the following repositories:

Panama foreign support, which adds support for foreign memory access, as well as for foreign function calls;
Panama vector support, which adds vectorization support in Java through JVM intriniscs; and
jextract, a tool which mechanically generate Java bindings from native library headers.

The legacy Panama repository is also available here, although we do not expect to carry out further work there; as such this repository should not be used (and in the future we might make this more explicit by marking the legacy repository as read-only).

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