[Demonstration 1]

[Buggy Method]
public static void main(String[] args) throws Exception {
    TopologyBuilder topologyBuilder = new TopologyBuilder();
    topologyBuilder.setSpout("spout", new RandomRptMsgSpout(), 5);
    topologyBuilder.setBolt("intermediate", new IntermediateBolt(), 5).shuffleGrouping("spout");
    topologyBuilder.setBolt("aggregate", new GenericAggregationBolt(), 5).fieldsGrouping("intermediate", new Fields("message"));
    Config conf = new Config();
    conf.setDebug(true);
    if (args != null && args.length > 0) {
        conf.setNumWorkers(3);
        StormSubmitter.submitTopologyWithProgressBar(args[0], conf, topologyBuilder.createTopology());
    } else {
        conf.setMaxTaskParallelism(3);
        LocalCluster cluster = new LocalCluster();
        cluster.submitTopology("InGameMsgRpt", conf, topologyBuilder.createTopology());
        Utils.sleep(20000);
        cluster.killTopology("InGameMsgRpt");
        cluster.shutdown();
    }
}

[Buggy Hunk]
conf.setDebug(true);

[Patch]
conf.setDebug(false);

[Demonstration 2]

[Buggy Method]
public Iterator getObjectIterator(Query query) {
    String jcrExpression = this.queryManager.buildJCRExpression(query);
    log.debug("Get Object with expression : " + jcrExpression);
    @SuppressWarnings("deprecation")
    NodeIterator nodeIterator = getNodeIterator(jcrExpression, javax.jcr.query.Query.XPATH);
    return new ObjectIterator(nodeIterator, this.objectConverter, this.session);
}

[Buggy Hunk]
log.debug("Get Object with expression : " + jcrExpression);

[Patch]
log.debug("Get Object with expression: {}", jcrExpression);

[Demonstration 3]

[Buggy Method]
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction().add(R.id.container, new PlaceholderFragment()).commit();
    }
}

[Buggy Hunk]
.add(R.id.container, new PlaceholderFragment())

[Patch]
.add(R.id.container, new AppListFragment())