[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]
public void setLocOption(LocationClientOption option) {
    if (mClient == null)
        Log.e(C.TAG, "locationclient can not be null before using is");
    else
        mClient.setLocOption(option);
}

[Buggy Hunk]
Log.e(C.TAG,"locationclient can not be null before using is");

[Patch]
Log.e(getClass().getName(),"locationclient can not be null before using is");

[Demonstration 3]

[Buggy Method]
public static void deleteFolder(FileType type) {
    if (type == FileType.LAST_RUN_COMMIT) {
        File dir = new File(BenchmarkAppConnector.benchmarkAppDirectory + "data" + File.separator + type + File.separator);
        if (!dir.exists()) {
            dir.mkdir();
        } else {
            for (File file : dir.listFiles()) {
                if (!file.isDirectory())
                    file.delete();
            }
        }
    } else if (type == FileType.IS_RUNNING_FILE) {
        File dir = new File(BenchmarkAppConnector.benchmarkAppDirectory + "data" + File.separator + "running" + File.separator);
        if (!dir.exists()) {
            dir.mkdir();
        } else {
            for (File file : dir.listFiles()) {
                if (!file.isDirectory())
                    file.delete();
            }
        }
    } else if (type == FileType.IS_CLONING_FILE) {
        File dir = new File(BenchmarkAppConnector.benchmarkAppDirectory + "data" + File.separator + "cloning" + File.separator);
        if (!dir.exists()) {
            dir.mkdir();
        } else {
            for (File file : dir.listFiles()) {
                if (!file.isDirectory())
                    file.delete();
            }
        }
    } else if (type == FileType.COMMIT_QUEUE) {
        File dir = new File(BenchmarkAppConnector.benchmarkAppDirectory + "data" + File.separator + "commit_queue" + File.separator);
        if (!dir.exists()) {
            dir.mkdir();
        } else {
            for (File file : dir.listFiles()) {
                if (!file.isDirectory())
                    file.delete();
            }
        }
    }
}

[Buggy Hunk]
File dir = new File(BenchmarkAppConnector.benchmarkAppDirectory + "data" + File.separator + type + File.separator);

[Patch]
File dir = new File(BenchmarkAppConnector.benchmarkAppDirectory + "data" + File.separator + "lastrun" + File.separator);