Java – missing twitter4j authentication credentials

I want to use Twitter 4J to tweet in my android app This is my code:

//TWITTER SHARE.
@Click (R.id. img_btn_twitter)
@Background
public void twitterPostWall(){

    try {


        //Twitter Conf.
        ConfigurationBuilder cb = new ConfigurationBuilder();
        cb.setDebugEnabled(true)
                .setOAuthConsumerKey(CONSUMER_KEY)
                .setOAuthConsumerSecret(CONSUMER_SECRET)
                .setOAuthAccessToken(ACCESS_KEY)
                .setOAuthAccessTokenSecret(ACCESS_SECRET);

        TwitterFactory tf = new TwitterFactory(cb.build());
        Twitter twitter = new TwitterFactory().getInstance();
        twitter.setOAuthConsumer(CONSUMER_KEY,CONSUMER_SECRET);

        try {
            RequestToken requestToken = twitter.getOAuthRequestToken();

            Log.e("Request token: ","" + requestToken.getToken());
            Log.e("Request token secret: ","" + requestToken.getTokenSecret());
            AccessToken accessToken = null;


        }

        catch (IllegalStateException ie) {

            if (!twitter.getAuthorization().isEnabled()) {
                Log.e("OAuth consumer key/secret is not set.","");
            }
        }


        Status status = twitter.updateStatus(postLink);
        Log.e("Successfully updated the status to [",""  + status.getText() + "].");

    }

    catch (TwitterException te) {
        Log.e("TWEET Failed","");

    }
}

I always get this error message from twitter4j: Java Lang.illegalstateexception: missing authentication credentials For more information, see http://twitter4j.org/en/configuration.html. But you can see that I'm using the builder to set my key Can someone help me solve it? thank you.

Solution

The problem is the following lines

TwitterFactory tf = new TwitterFactory(cb.build());
Twitter twitter = new TwitterFactory().getInstance();

You are passing the configuration to a twitterfactory instance and using another twitterfactory instance to get a twitter instance

So you get Java Lang.illegalstateexception: missing authentication credentials

I suggest you modify your code as follows:

//Twitter Conf.
    ConfigurationBuilder cb = new ConfigurationBuilder();
    cb.setDebugEnabled(true)
            .setOAuthConsumerKey(CONSUMER_KEY)
            .setOAuthConsumerSecret(CONSUMER_SECRET)
            .setOAuthAccessToken(ACCESS_KEY)
            .setOAuthAccessTokenSecret(ACCESS_SECRET);

    TwitterFactory tf = new TwitterFactory(cb.build());
    Twitter twitter = tf.getInstance();

And use this twitter instance It will work