[Demonstration 1]

[Buggy Method]
public static void copy(InputStream input, Writer output) throws IOException {
    InputStreamReader in = new InputStreamReader(input);
    copy(((Reader) (in)), output);
}

[Buggy Hunk]
copy(((Reader) (in)), output);

[Patch]
copy(in, output);

[Demonstration 2]

[Buggy Method]
@Override
public void onFailure(Call<Response> call, Throwable t) {
    Log.d("", "");
}

[Buggy Hunk]
Log.d("","");

[Patch]
Log.e("Error",t.getLocalizedMessage());

[Demonstration 3]

[Buggy Method]
@Override
public void loadChapters(Manga manga, boolean forceReload) throws Exception {
    if (manga.getChapters().size() == 0 || forceReload) {
        Pattern p;
        Matcher m;
        String data = getNavigatorAndFlushParameters().getWithTimeout((manga.getPath()));
        // Title
        manga.setImages(getFirstMatchDefault(PATRON_PORTADA, data, ""));
        // Summary
        manga.setSynopsis(getFirstMatchDefault(PATRON_SINOPSIS, data, defaultSynopsis));
        manga.setFinished(data.contains("<h\\d>Status:</h\\d>    <span>        Completed"));
        // Author
        manga.setAuthor(getFirstMatchDefault("\"/search/author/.+?>(.+?)<", data, ""));
        // Genre
        manga.setGenre(Util.getInstance().fromHtml(getFirstMatchDefault("(<a href=\"http://mangafox.me/search/genres/.+?</td>)", data, "")).toString());
        // Chapter
        p = Pattern.compile(PATTERN_CAPITULOS);
        m = p.matcher(data);
        while (m.find()) {
            Chapter mc;
            if (m.group(4) != null)
                mc = new Chapter(m.group(2).trim() + ": " + m.group(4), "http:" + m.group(1).replace("1.html", ""));
            else
                mc = new Chapter(m.group(2).trim(), "http:" + m.group(1).replace("1.html", ""));
            mc.addChapterFirst(manga);
        }
    }
}

[Buggy Hunk]
manga.setGenre(Util.getInstance().fromHtml(getFirstMatchDefault("(<a href=\"http://mangafox.me/search/genres/.+?</td>)", data, "")).toString());

[Patch]
manga.setGenre(Util.getInstance().fromHtml(getFirstMatchDefault("(<a href=\"//mangafox.me/search/genres/.+?</td>)", data, "")).toString());