How to get EchoAuth for twitter4j. Android

test

        String consumerKey = "";
        String consumerSecret = "";
        String token = "";
        String tokenSecret = "";

        Configuration conf = new ConfigurationBuilder().setOAuthConsumerKey(consumerKey).setOAuthConsumerSecret(consumerSecret).setOAuthAccessToken(token).setOAuthAccessTokenSecret(tokenSecret).build();

        OAuthAuthorization auth = new OAuthAuthorization(conf);

        HttpRequest hr = new HttpRequest(RequestMethod.GET, "https://api.twitter.com/1.1/account/verify_credentials.json", null, auth, null);
        String authorizationHeader = auth.getAuthorizationHeader(hr);
        System.out.println(authorizationHeader);