This test is targeted to run on Windows only using a boolean variable to record the OS platform, via the geProperty of os.name and throwing SkippedException for non Windows OS. This can be also done using the @requires (os.family == "windows")

public class Correctness {

    static boolean err = false;
    static Method containsMethod;
    static boolean isWindows =
            System.getProperty("os.name").contains("Windows");
    public static void main(String args[]) throws Exception {