[Demonstration 1]

[Buggy Method]
@Override
public void onResume() {
    super.onResume();
    setupToolBar();
    getActivity().supportInvalidateOptionsMenu();
    getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
    if (adapter != null && adapter.getFirstExposedCard() != null && adapter.getSecondExposedCard() != null) {
        onRoundComplete(adapter.getFirstExposedCard(), adapter.getSecondExposedCard());
    }
}

[Buggy Hunk]
onRoundComplete(adapter.getFirstExposedCard(), adapter.getSecondExposedCard());

[Patch]
roundDidComplete(adapter.getFirstExposedCard(), adapter.getSecondExposedCard());

[Demonstration 2]

[Buggy Method]
private void getData(int from, String id) {
    Call<NewsFeedResponse> getUserNewsFeed = Util.getRetrofitService().getUserNews("" + from, id);
    getUserNewsFeed.enqueue(new Callback<NewsFeedResponse>() {

        @Override
        public void onResponse(Call<NewsFeedResponse> call, Response<NewsFeedResponse> response) {
            NewsFeedResponse data = response.body();
            if (data != null && response.isSuccess()) {
                if (data.isSuccess()) {
                    if (data.getFeed() != null) {
                        list.addAll(data.getFeed());
                        if (list.size() > 0) {
                            recyclerView.setVisibility(View.VISIBLE);
                            progress.setVisibility(View.GONE);
                            adapter.refresh(list);
                        } else {
                            recyclerView.setVisibility(View.GONE);
                            progress.setVisibility(View.GONE);
                            nodata.setVisibility(View.VISIBLE);
                            nodata.setText("No Post Uploaded");
                        }
                    }
                } else {
                    nodata.setVisibility(View.VISIBLE);
                    recyclerView.setVisibility(View.GONE);
                    progress.setVisibility(View.GONE);
                    nodata.setText(data.getMsg());
                }
            } else {
                nodata.setVisibility(View.VISIBLE);
                recyclerView.setVisibility(View.GONE);
                progress.setVisibility(View.GONE);
                nodata.setText("Please Check Internet Connection");
            }
        }

        @Override
        public void onFailure(Call<NewsFeedResponse> call, Throwable t) {
            recyclerView.setVisibility(View.GONE);
            progress.setVisibility(View.GONE);
            t.printStackTrace();
            nodata.setText("Please Check Internet Connection");
        }
    });
}

[Buggy Hunk]
Call<NewsFeedResponse> getUserNewsFeed = Util.getRetrofitService().getUserNews(""+from,id);

[Patch]
Call<NewsFeedResponse> getUserNewsFeed = Util.getRetrofitService().getUserNews(id);

[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));