I made apps for twitter,when i post the tweets,error is coming
<p>error----Exception processing async thread queue Exception processing async thread queue java.lang.UnsupportedOperationException</p>

<pre><code>package com.android.otweet.tasks;

import twitter4j.Twitter;
import twitter4j.TwitterException;
import android.os.AsyncTask;

public class PostTweetAsyncTask extends AsyncTask&lt;String, Void, twitter4j.Status&gt; {

    private Twitter twitter;
    private PostTweetResponder responder;

    public PostTweetAsyncTask(PostTweetResponder responder, Twitter twitter) {
        super();
        this.twitter = twitter;
        this.responder = responder;
    }

    public interface PostTweetResponder {
        public void tweetPosting();
        public void tweetPosted(twitter4j.Status tweet);
    }

    @Override
    protected void onPostExecute(twitter4j.Status result) {
        super.onPostExecute(result);
        responder.tweetPosted(result);
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        responder.tweetPosting();
    }

    @Override
    protected twitter4j.Status doInBackground(String... params) {
        String tweet = params[0];
        try {
            return twitter.updateStatus(tweet);
        } catch (TwitterException e) {
            e.printStackTrace();
            throw new RuntimeException("Couldn't post status", e);
        }
    }
}
</code></pre>

<p>error is coming in doBackground().</p>
