### Question:
UrlHelper { public static String removeSessionId(String originalUrl) { if (originalUrl == null) { return null; } return SESSION_ID_PATTERN.matcher(originalUrl).replaceAll("").replaceAll("\\?$", "").replaceAll("\\?&", "?"); } private  UrlHelper(); static String removeSessionId(String originalUrl); static void makeAbsoluteUrls(Document document); static String getBaseUrl(Document document); static String makeFullUrl(String pageUrl, String baseUrl, String linkUrl); static String makeFullUrl(String contextUrl, String linkUrl); static String getCleanUrl(String url); static String removeAnchors(String url); static String getDomain(String url, boolean includeProtocol, boolean includeSubdomain); static String getDomain(String url, boolean includeProtocol); static String getDomain(String url); static String getCanonicalUrl(String url); static String decodeParameter(String string); static String encodeParameter(String string); static List<String> extractUrls(String text); static boolean isLocalFile(URL url); static String createParameterString(List<Pair<String, String>> parameters); static List<Pair<String, String>> parseParams(String parameterString); static String parseBaseUrl(String url); static boolean isValidUrl(String url); static final Pattern URL_PATTERN; }### Answer:
@Test public void testRemoveSessionId() { assertEquals("http: "http: assertEquals("http: "http: assertEquals("http: "http: assertEquals("http: "http: assertEquals("http: "http: assertEquals("http: "http: assertEquals("http: "http: }