Ok I sorted part of the erros, being the unstisfied link,
I missed where you discussed that.
I think I've done that...
The OpenCV native library files (e.g. opencv_javaXXX.dll, libopencv_javaXXX.so) are not in the PATH.
Make sure the native library (dll or so) is in your PATH or in the working directory of your program
Javac -version is giving me a "positive answer" -> javac 17.0.5
I do have the jar.exe
Error: 'jar-' is not recognized as an internal or external command
the components are not updating