.addQueryParameter("a+=& b", "c+=& d")
        .addQueryParameter("a+=& b", "e+=& f")
        .build()
    assertThat(url.toString())
      .isEqualTo("http://host/?a%2B%3D%26%20b=c%2B%3D%26%20d&a%2B%3D%26%20b=e%2B%3D%26%20f")
    assertThat(url.querySize).isEqualTo(2)
    assertThat(url.queryParameterNames).isEqualTo(setOf("a+=& b"))
    assertThat(url.queryParameterValues("a+=& b"))

            }

            // decode
            if (!isSmbOrFtpUrl) {
                // file
                try {
                    url = URLDecoder.decode(url.replace("+", "%2B"), urlLinkEncoding);
                } catch (final Exception e) {
                    if (logger.isDebugEnabled()) {
                        logger.warn("Failed to decode {}", url, e);
                    }