coursier-jni-utils is a small library allowing to tap into various Windows native APIs from Java / Scala via JNI.

coursier-jni-utils is built with Mill. It comes up with Mill launchers (mill, mill.bat), so that only a JVM and the Visual C++ compiler should be needed to build it.

A JVM, such as AdoptOpenJDK 8 or 11, is required. To check if such a JVM is installed, run java -version, and check that it prints a version higher than or equal to 8.

A Visual Studio installation with Visual C++ is required.

IntelliJ IDEA is the recommended IDE to develop on jni-utils. Prior to opening the project with IDEA, run

$ ./mill mill.scalalib.GenIdea/idea

Then open the jni-utils directory in IDEA.

$ ./mill __.compile

This should automatically compile .h / .c files with Visual C++, create a corresponding .dll, and make it available as a resource from Java.

Some simple tests can be run with

$ ./mill __.test