private static void killProcessTree(Process process) {
        try {
            Field f = process.getClass().getDeclaredField("handle");
            f.setAccessible(true);
            long handl = f.getLong(process);
            Kernel32 kernel = Kernel32.INSTANCE;
            WinNT.HANDLE handle = new WinNT.HANDLE();
            handle.setPointer(Pointer.createConstant(handl));
            int ret = kernel.GetProcessId(handle);
            Long PID = Long.valueOf(ret);
            String cmd = getKillProcessTreeCmd(PID);
            System.out.println("close" + cmd);
            Runtime rt = Runtime.getRuntime();
            Process killPrcess = rt.exec(cmd);
            killPrcess.waitFor();
            killPrcess.destroy();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static String getKillProcessTreeCmd(Long Pid) {
        String result = "";
        if (Pid != null)
            result = "cmd.exe /c taskkill /PID " + Pid + " /F /T ";
        return result;
    }