### Question:
InitFilter implements Filter { protected static String removeTrailingSlash(String url) { if (url.endsWith("/")) { return url.substring(0, url.length() - 1); } return url; }  void doFilter(ServletRequest req, ServletResponse res,
            FilterChain chain); @Override void init(FilterConfig filterConfig); @Override void destroy();  }### Answer:
@Test public void testRemoveTrailingSlash() throws Exception { assertEquals("http: assertEquals("http: }