[Demonstration 1]

[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 2]

[Buggy Method]
private static void deleteReservation(int i) {
    CoralAPISynchronized instance = apiPool.getConnection(member);
    try {
        Date resStartDate = new Date(stringToDate(reservationStart).getTime() + (30 * 1000 * i * 60));
        String resStart = dateToAdapterString(resStartDate);
        System.out.println("Oiaiu-Deleting Reservation " + resStart);
        instance.deleteReservation(member, member, project, machine, resStart, 30);
    } catch (Exception ex) {
        System.out.println("Oiaiu-Deleted Reservation FAILED");
        ex.printStackTrace();
        Logger.getLogger(StressTestApi.class.getName()).log(Level.SEVERE, "Failed to delete reservation", ex);
    }
}

[Buggy Hunk]
private static void deleteReservation(int i) {

[Patch]
private static void deleteReservation(int i) throws CoralConnectionException {

[Demonstration 3]

[Buggy Method]
public static TaskService createDemoService() {
    if (instance == null) {
        final TaskService taskService = new TaskService();
        Random r = new Random(0);
        Calendar cal = Calendar.getInstance();
        for (int i = 0; i < tasks.length; i++) {
            Task task = new Task();
            task.setFirstName(fnames[r.nextInt(fnames.length)]);
            task.setLastName(lnames[r.nextInt(fnames.length)]);
            task.setTask(tasks[i]);
            task.setStartDate(cal.getTime());
            task.setExpectedEndDate(new Date(System.currentTimeMillis() + System.currentTimeMillis()));
            taskService.save(task);
        }
        instance = taskService;
    }
    return instance;
}

[Buggy Hunk]
task.setTask(tasks[i]);

[Patch]
task.setTaskName(tasks[i]);