public static String GetToml(int a) {
        GroupID = toml.getString("GroupID");
        mainclass = toml.getString("mainclass");
        if (a == 1) {
            return GroupID;
        } else if (a == 2) {
            return mainclass;
        } else {
            System.out.println("Invalid toml mode");
        }
        return null;
    }

        if (Objects.equals(args[0], "runa")) {
            runProcess("java " + directoryPathy + mainclass);
        }

    private static void runProcess(String command) throws Exception {
        Process pro = Runtime.getRuntime().exec(command);
        printLines(command + " stdout:", pro.getInputStream());
        printLines(command + " stderr:", pro.getErrorStream());
        pro.waitFor();
        System.out.println(command + " exitValue() " + pro.exitValue());
    }

    private static void printLines(String cmd, InputStream ins) throws Exception {
        String line = null;
        BufferedReader in = new BufferedReader(
                new InputStreamReader(ins));
        while ((line = in.readLine()) != null) {
            System.out.println(cmd + " " + line);
        }
    }