code: @Override
      public String encodeRedirectURL(String url) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "encodeRedirectURL: " + url);
          }
          return encodeURL(url);
      }
docs: /*
  @see javax.servlet.http.HttpServletResponse#encodeRedirectURL(java.lang.String)