[Demonstration 1]

[Buggy Method]
@Override
public void onSuccess(Bill[] bills) {
    String billsOutput = "{\n ";
    for (Bill bill : bills) {
        if (bill.getOwnerID().equals(MainActivity.getmKinveyClient().user().getId())) {
            billsOutput += "\tbill {\n\t\tname: " + bill.getBill() + ", \n\t\tproducts: [";
            for (Map.Entry<String, String[]> stringEntry : bill.getProducts().entrySet()) {
                billsOutput += "\n\t\t\t" + stringEntry.getKey() + " {\n\t\t\t\tamount: " + stringEntry.getValue()[0] + "\n\t\t\t\tprice: " + stringEntry.getValue()[1] + "\n\t\t\t}";
            }
            billsOutput += "\n\t\t], \n\t\tprice: " + bill.getTotalPrice() + "\n\t},";
        }
    }
    billsOutput += "\n}";
    printBills(billsOutput);
}

[Buggy Hunk]
if(bill.getOwnerID().equals(MainActivity.getmKinveyClient().user().getId())) {

[Patch]
if(bill.getOwnerID().equals(MainActivity.mKinveyClient.user().getId())) {

[Demonstration 2]

[Buggy Method]
public static Result service(String ownerName, String projectName, String service, boolean isAdvertise) throws IOException, UnsupportedOperationException, ServletException {
    if (!isSupportedService(service)) {
        return forbidden(String.format("Unsupported service: '%s'", service));
    }
    Project project = Project.findByOwnerAndProjectName(ownerName, projectName);
    if (project == null) {
        return notFound();
    }
    models.User user = UserApp.currentUser();
    if (!isAllowed(project, service)) {
        if (user.isAnonymous()) {
            return BasicAuthAction.unauthorized(response());
        } else {
            // If you want the Git client showing your custom message to
            // the user, the Content-Type should be exact "text/plain"
            // without any parameter. For more details, see the code at
            // https://github.com/git/git/commit/426e70d4a11ce3b4f70636d57c6a0ab16ae08a00#diff-eea0ad565ec5903a11b6023755d491cfR154
            response().setHeader("Content-Type", "text/plain");
            return forbidden(String.format("'%s' has no permission to '%s/%s'.", user.name, ownerName, projectName));
        }
    }
    if (isAdvertise) {
        return ok(RepositoryService.gitAdvertise(project, service, response()));
    } else {
        if (request().body().isMaxSizeExceeded()) {
            return status(REQUEST_ENTITY_TOO_LARGE);
        } else {
            user.visits(project);
            return ok(RepositoryService.gitRpc(project, service, request(), response()));
        }
    }
}

[Buggy Hunk]
user.name, ownerName, projectName));

[Patch]
user.loginId, ownerName, projectName));

[Demonstration 3]

[Buggy Method]
public static MultiPolygon getMyLands(Integer stakeholderID) {
    MultiPolygon result = JTSUtils.EMPTY;
    final ItemMap<Land> lands = EventManager.getItemMap(MapLink.LANDS);
    for (Land land : lands) {
        if (land.getOwnerID() == stakeholderID) {
            result = JTSUtils.union(result, land.getMultiPolygon());
        }
    }
    return result;
}

[Buggy Hunk]
public static MultiPolygon getMyLands(Integer stakeholderID) {

[Patch]
public static MultiPolygon getMyLands(final Integer stakeholderID) {