HttpUtils { public static Hashtable<String, String[]> parseQueryString(String queryString) { throw new UnsupportedOperationException(); } HttpUtils(); static StringBuffer getRequestURL(HttpServletRequest request); static Hashtable<String, String[]> parsePostData(int length, ServletInputStream inputStream); static Hashtable<String, String[]> parseQueryString(String queryString);  }
@Test void testParseQueryString() { assertThrows(UnsupportedOperationException.class, () -> HttpUtils.parseQueryString(null)); }