* They don't specify whether a specific proxy server should be used or how to authenticate with that proxy server.

They're also concrete: each URL identifies a specific path (like `/square/okhttp`) and query (like `?q=sharks&lang=en`). Each webserver hosts many URLs.

### [Addresses](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-address/)

 * This can be a problem if using DFS in it's default configuration as that still returns referrals in short form.
 * See <a href="https://support.microsoft.com/en-us/kb/244380">KB-244380</a> for compatible server configuration.
 * See {@link jcifs.Configuration#isDfsConvertToFQDN()} for a workaround.
 *
 * @author mbechler
 */

     * bn=bn<br>
     * ca=ca<br>
     * ckb-iq=ckb-iq<br>
     * ckb_IQ=ckb-iq<br>
     * cs=cs<br>
     * da=da<br>
     * de=de<br>
     * el=el<br>
     * en=en<br>
     * en-ie=en-ie<br>
     * en_IE=en-ie<br>
     * es=es<br>
     * et=et<br>
     * eu=eu<br>
     * fa=fa<br>
     * fi=fi<br>
     * fr=fr<br>
     * gl=gl<br>
     * gu=gu<br>
     * he=he<br>

    }
    if (result.equals("/..")) {
      result = "/";
    } else if (result.isEmpty()) {
      result = ".";
    }

    return result;
  }

  /**
   * Returns the <a href="http://en.wikipedia.org/wiki/Filename_extension">file extension</a> for
   * the given file name, or the empty string if the file has no extension. The result does not
   * include the '{@code .}'.
   *

/**
 * A navigable set which forwards all its method calls to another navigable set. Subclasses should
 * override one or more methods to modify the behavior of the backing set as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingNavigableSet} forward <i>indiscriminately</i>

        .addHeader("Accept-Language", "en-US")
        .build()
    val response1 = client.newCall(request1).execute()
    assertThat(response1.body.string()).isEqualTo("A")
    val request2 =
      Request
        .Builder()
        .url(url)
        .addHeader("Accept-Language", "fr-CA, fr-FR")
        .addHeader("Accept-Language", "en-US")
        .build()

/**
 * A navigable set which forwards all its method calls to another navigable set. Subclasses should
 * override one or more methods to modify the behavior of the backing set as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingNavigableSet} forward <i>indiscriminately</i>

    }
    if (result.equals("/..")) {
      result = "/";
    } else if (result.isEmpty()) {
      result = ".";
    }

    return result;
  }

  /**
   * Returns the <a href="http://en.wikipedia.org/wiki/Filename_extension">file extension</a> for
   * the given file name, or the empty string if the file has no extension. The result does not
   * include the '{@code .}'.
   *

 * information on "bogons", including lists of IPv6 bogon space, see:
 *
 * <ul>
 *   <li><a target="_parent"
 *       href="http://en.wikipedia.org/wiki/Bogon_filtering">http://en.wikipedia.
 *       org/wiki/Bogon_filtering</a>
 *   <li><a target="_parent"
 *       href="http://www.cymru.com/Bogons/ipv6.txt">http://www.cymru.com/Bogons/ ipv6.txt</a>

        Map<String, Object> parentMap = new LinkedHashMap<>();
        DocMap docMap = new DocMap(parentMap);

        docMap.put("c_key", "value_c");
        docMap.put("a_key", "value_a");
        docMap.put("lang", "en");
        docMap.put("b_key", "value_b");

        Set<Map.Entry<String, Object>> entrySet = docMap.entrySet();
        String[] keys = entrySet.stream().map(Map.Entry::getKey).toArray(String[]::new);