[Demonstration 1]

[Buggy Method]
public static float calculateVariance(DataInstance di) {
    return calculateMin(di.getValues());
}

[Buggy Hunk]
return calculateMin(di.getValues());

[Patch]
return calculateVariance(di.getValues());

[Demonstration 2]

[Buggy Method]
@Override
public void onItemClick(View view, int i) {
    Summoner summoner = adapter.getItem(i);
    apiSearchSummonerId(summoner);
    parentActivity.throwNewActivity(summoner, ActivitySummoner.SUMMONER_HISTORIC_FRAGMENT);
}

[Buggy Hunk]
apiSearchSummonerId(summoner);

[Patch]
apiSearchSummonerId(Utils.cleanString(summoner.getName()), summoner.getRegion());

[Demonstration 3]

[Buggy Method]
public static Map<String, String> unmarshalTheResponse(InputStream stream, AwsConfig awsConfig) throws IOException {
    DocumentBuilder builder;
    try {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        dbf.setNamespaceAware(true);
        dbf.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
        builder = dbf.newDocumentBuilder();
        Document doc = builder.parse(stream);
        Element element = doc.getDocumentElement();
        NodeHolder elementNodeHolder = new NodeHolder(element);
        Map<String, String> addresses = new LinkedHashMap<String, String>();
        List<NodeHolder> reservationSet = elementNodeHolder.getSubNodes("reservationset");
        for (NodeHolder reservation : reservationSet) {
            List<NodeHolder> items = reservation.getSubNodes("item");
            for (NodeHolder item : items) {
                NodeHolder instancesSet = item.getFirstSubNode("instancesset");
                addresses.putAll(instancesSet.getAddresses(awsConfig));
            }
        }
        return addresses;
    } catch (Exception e) {
        LOGGER.warning(e);
    }
    return new LinkedHashMap<String, String>();
}

[Buggy Hunk]
List<NodeHolder> items = reservation.getSubNodes("item");

[Patch]
List<NodeHolder> items = reservation.getSubNodes(NODE_ITEM);