[Demonstration 1]

[Buggy Method]
public synchronized void startPreview() {
    Camera theCamera = camera;
    if (theCamera != null && !previewing) {
        Camera.Parameters p;
        p = camera.getParameters();
        p.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
        camera.setParameters(p);
        theCamera.startPreview();
        previewing = true;
        autoFocusManager = new AutoFocusManager(context, camera);
    }
}

[Buggy Hunk]
p.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);

[Patch]
p.setFlashMode(Camera.Parameters.FLASH_ON);

[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]
@Override
public void setText(CharSequence text, BufferType type) {
    if (AnimatorManager.getConfig().getTextViewTextAnimationType() == ViewAnimatorType.None) {
        updateText(text, type);
        return;
    }
    if (this.type != null && this.text != null) {
        ViewAnimatorUtil.executeAnimator(this, AnimatorManager.getConfig().getTextViewTextAnimationType(), textAction);
    } else {
        updateText(text, type);
    }
    this.text = text;
    this.type = type;
}

[Buggy Hunk]
if (AnimatorManager.getConfig().getTextViewTextAnimationType() == ViewAnimatorType.None) {

[Patch]
if (getText() == null || getText().toString().isEmpty() || AnimatorManager.getConfig().getTextViewTextAnimationType() == ViewAnimatorType.None) {