[Demonstration 1]

[Buggy Method]
private static String findPollenData() {
    String retValue = null;
    try {
        HttpClient client = new DefaultHttpClient();
        HttpGet request = new HttpGet(POLLEN_URL);
        // add request header
        request.addHeader("User-Agent", USER_AGENT);
        request.addHeader(M2X_HEADER, API_KEY);
        HttpResponse response = client.execute(request);
        System.out.println("\nSending 'GET' request to URL : " + POLLEN_URL);
        System.out.println("Response Code : " + response.getStatusLine().getStatusCode());
        BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
        String line = "";
        while ((line = rd.readLine()) != null) {
            int ind = line.indexOf("\"value\"");
            int ind2 = line.indexOf(',', ind);
            retValue = line.substring(ind + 8, ind2);
            System.out.println(retValue);
        }
    } catch (Exception ex) {
        for (StackTraceElement elem : ex.getStackTrace()) {
            System.out.println(elem.toString());
        }
        System.out.println("found exception: " + ex.getMessage());
    }
    return retValue;
}

[Buggy Hunk]
request.addHeader("User-Agent", USER_AGENT);

[Patch]
request.addHeader(USER_AGENT_HEADER, USER_AGENT);

[Demonstration 2]

[Buggy Method]
@Override
public long getFirstPlayed() {
    return getHandle().getFirstPlayed().getTime();
}

[Buggy Hunk]
return getHandle().getFirstPlayed().getTime();

[Patch]
return getHandle().getData(JoinData.class).get().getFirstPlayed().getTime();

[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));