[Demonstration 1]

[Buggy Method]
public String register() {
    // try{
    message = "";
    transactionFailure = null;
    //Man måste kontrollera att ingen
    if (controller.getPerson(username) != null) {
        setMessage("This username already exists. Please, choose another one.");
        return "login";
    } else {
        controller.createPerson(username, email, name, password, surname);
        setMessage("You have been successfully registered. Now you can log in.");
        return "confirmation";
    }
    /*  }

        catch (Exception e) {
            handleException(e);
        }
       
        return jsf22Bugfix();*/
}

[Buggy Hunk]
if (controller.getPerson(username)!= null)

[Patch]
if (controller.getPerson(username)!= true)

[Demonstration 2]

[Buggy Method]
public void run() {
    while (Application.isRunning()) {
        long cur = System.currentTimeMillis();
        for (Tick tick : this) {
            if (cur - tick.last >= tick.interval) {
                tick.execute();
                tick.last = cur;
                try {
                    Thread.sleep(50);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

[Buggy Hunk]
while(Application.isRunning()) {

[Patch]
while(true) {

[Demonstration 3]

[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));