OPEN ARENA MULTITHREADING CODE
Unfortunately, Java developers still face significant obstacles in accessing an important kind of non-Java resource: code and data on the same machine as the JVM, but outside the Java runtime. Java APIs expose non-Java resources in a convenient and reliable fashion, whether to access remote data (JDBC), invoke web services (HTTP client), serve remote clients (NIO channels), or communicate with local processes (Unix-domain sockets). The Java Platform has always offered a rich foundation to library and application developers who wish to reach beyond the JVM and interact with other platforms.
Provide tooling that mechanically generates Java code from native-code header files or.Re-implement legacy Java APIs, such as, on top of this API.Re-implement JNI on top of this API, or otherwise change JNI in any way.Safety - Disable unsafe operations by default, allowing them only after explicit opt-in from application developers or end users. Generality - Provide ways to operate on different kinds of foreign memory (e.g., native memory, persistent memory, and managed heap memory) and, over time, to accommodate other platforms (e.g., 32-bit x86) and foreign functions written in languages other than C (e.g., C++, Fortran). Performance - Provide performance that is comparable to, if not better than, existing APIs such as JNI and. GoalsĮase of use - Replace the Java Native Interface ( JNI) with a superior, pure-Java development model.
The Foreign Linker API was first proposed by JEP 389 and targeted to Java 16 in late 2020, also as an incubating API. The Foreign-Memory Access API was first proposed by JEP 370 and targeted to Java 14 in late 2019 as an incubating API it was re-incubated by JEP 383 in Java 15 and by JEP 393 in Java 16. The API proposed in this JEP is the evolution of two incubating APIs: the Foreign-Memory Access API and the Foreign Linker API. By efficiently invoking foreign functions (i.e., code outside the JVM), and by safely accessing foreign memory (i.e., memory not managed by the JVM), the API enables Java programs to call native libraries and process native data without the brittleness and danger of JNI. Introduce an API by which Java programs can interoperate with code and data outside of the Java runtime.
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