public static void main(String[] args) throws IOException, InterruptedException {
    String ip = "192.168.1.1";
    String userName = "username";
    String password = "password";

    // creating credentials
    Process p = Runtime.getRuntime().exec("cmdkey /generic:"+ip+" /user:"+userName+" /pass:"+password );
    p.destroy();

    Process exec =  Runtime.getRuntime().exec("mstsc /v: "+ip+" /console");

    Thread.sleep(30000);

    // deleting credentials
    Process p1 = Runtime.getRuntime().exec("cmdkey /delete:"+ip);
    p1.destroy();
}