}
        final List<String> urlList = new ArrayList<>();
        for (final FailureUrl failureUrl : list) {
            if (pattern != null) {
                if (!pattern.matcher(failureUrl.getErrorName()).matches()) {
                    urlList.add(failureUrl.getUrl());
                }
            } else {
                urlList.add(failureUrl.getUrl());
            }
        }
        return urlList;
    }