twitter4j mention checker

import twitter4j.*;

public class main {
    public static void main(String[] args)
            throws TwitterException, InterruptedException {

        long newestID = 0;

        Twitter twitter = new Auth().getTwitter();

        long newestIDretrieved = 0;
        while(true) {
            ResponseList<Status> mentions = twitter.getMentionsTimeline();
            newestIDretrieved = mentions.get(0).getId();
            if (newestIDretrieved > newestID) {
                newestID = newestIDretrieved;
                System.out.println(mentions.get(0).getText());
            }
            Thread.sleep(1000*90); // check every 1.5 minutes. (limit is once per minute)
        }

    }
}