### Question:
UrlUtils { public static List<String> revertForbid(List<String> forbid, Set<URL> subscribed) { if (forbid != null && forbid.size() > 0) { List<String> newForbid = new ArrayList<String>(); for (String serviceName : forbid) { if (!serviceName.contains(":") && !serviceName.contains("/")) { for (URL url : subscribed) { if (serviceName.equals(url.getServiceInterface())) { newForbid.add(url.getServiceKey()); break; } } } else { newForbid.add(serviceName); } } return newForbid; } return forbid; }  static URL parseURL(String address, Map<String, String> defaults); static List<URL> parseURLs(String address, Map<String, String> defaults); static Map<String, Map<String, String>> convertRegister(Map<String, Map<String, String>> register); static Map<String, String> convertSubscribe(Map<String, String> subscribe); static Map<String, Map<String, String>> revertRegister(Map<String, Map<String, String>> register); static Map<String, String> revertSubscribe(Map<String, String> subscribe); static Map<String, Map<String, String>> revertNotify(Map<String, Map<String, String>> notify); static List<String> revertForbid(List<String> forbid, Set<URL> subscribed); static URL getEmptyUrl(String service, String category); static boolean isMatchCategory(String category, String categories); static boolean isMatch(URL consumerUrl, URL providerUrl); static boolean isMatchGlobPattern(String pattern, String value, URL param); static boolean isMatchGlobPattern(String pattern, String value); static boolean isServiceKeyMatch(URL pattern, URL value); static URL getRegisterURL(String key); static URL getZkUrlByAddress(String addresses, String id, String serviceIp, Integer servicePort); static List<URL> getAllProviderRegisterURLs();  }### Answer:
@Test public void revertForbid() throws Exception { }