Needs to be tested on windows, or maybe just add an IT ?

Why not, sounds reasonable...via toolchains?

We assume thet user have awk ....
What do you think to create a simple class like:

public class CheckJavaVersion {
    public static void main(String[] args) {
        if (Double.parseDouble(System.getProperty("java.vm.specification.version")) < 17.0) {
            System.exit(2);
        }
    }
}

compile with target 8, put in bin directory

it will be easy to execute and check statu code of execution

We assume thet user have awk .... What do you think to create a simple class like:

public class CheckJavaVersion {
    public static void main(String[] args) {
        if (Double.parseDouble(System.getProperty("java.vm.specification.version")) < 17.0) {
            System.exit(2);
        }
    }
}

compile with target 8, put in bin directory

it will be easy to execute and check statu code of execution

I just changed the script to simply rely on java to verify that the argument can be used.

Resolve #9477