Java API generator (scapix_java executable in bin folder) is used to generate C++ headers from Java binary *.class files. Scapix provides pre-generated C++ headers for multiple JDK and Android platforms. For example, see generated C++ header: java/lang/String.h.
You can also use scapix_java to generate C++ headers
for another JDK or Android release or for any other Java code, including your own.
This is how you can generate Java API C++ headers for a different Java target, in this example android-14 API.
Install corresponding Java SDK (for example using Android Studio SDK Manager).
You may have to adjust path to Android SDK depending on your system.
Windows:
cd scapix\java_api
mkdir android-14\scapix\java_api
cd android-14\scapix\java_api
unzip "%USERPROFILE%\AppData\Local\Android\Sdk\platforms\android-14\android.jar" -d temp
scapix-bin\Windows-AMD64\scapix_java temp
rmdir /s/q temp
macOS:
cd scapix/java_api
mkdir -p android-14/scapix/java_api
cd android-14/scapix/java_api
unzip "~/Library/Android/sdk/platforms/android-14/android.jar" -d temp
scapix-bin/Darwin-x86_64/scapix_java temp
rm -rf temp
Linux:
cd scapix/java_api
mkdir -p android-14/scapix/java_api
cd android-14/scapix/java_api
unzip "~/Android/Sdk/platforms/android-14/android.jar" -d temp
scapix-bin/Linux-x86_64/scapix_java temp
rm -rf temp
Now when running CMake for a project using Scapix, you can specify SCAPIX_JAVA_API=android-14.