OpenJDK: Panama

Summary

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 Design documents JEPs 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).