} else {
          System.err.println(callback.prompt)
          callback.password =
            System.`in`
              .bufferedReader()
              .readLine()
              .toCharArray()
        }
      } else {
        throw UnsupportedCallbackException(callback)
      }
    }
  }
}

fun main() {
  YubikeyClientAuth().run()

   *
   * The deadline to respond to this ping attempts to limit the cost of being wrong. If it is too
   * long, streams created while we await the pong will reuse broken connections and inevitably
   * fail. If it is too short, slow connections will be marked as failed and extra TCP and TLS
   * handshakes will be required.
   *
   * The deadline is currently hardcoded. We may make this configurable in the future!

    }
  }

  @Test
  fun publicSuffixExceptions() {
    val buffer = Buffer()
    FileSystem.SYSTEM.read(pathForTests) {
      var length = readInt()
      skip(length.toLong())
      length = readInt()
      buffer.write(this, length.toLong())
    }
    while (!buffer.exhausted()) {
      val exception = buffer.readUtf8LineStrict()

                                    <tr>
                                        <th><la:message key="labels.dict_kuromoji_reading"/></th>
                                        <td>${f:h(reading)}<la:hidden property="reading"/></td>
                                    </tr>
                                    <tr>
                                        <th><la:message key="labels.dict_kuromoji_pos"/></th>

            "type" : "keyword"
          },
          "createdTime" : {
            "type" : "long"
          },
          "permissions" : {
            "type" : "keyword"
          },
          "reading" : {
            "type" : "keyword"
          },
          "suggestWord" : {
            "type" : "keyword"
          },
          "updatedBy" : {
            "type" : "keyword"
          },

                                    <tr>
                                        <th><la:message key="labels.elevate_word_reading"/></th>
                                        <td>${f:h(reading)}<la:hidden property="reading"/></td>
                                    </tr>
                                    <tr>
                                        <th><la:message key="labels.elevate_word_permissions"/></th>

     * @param type the target class type
     * @param stream the ASN.1 input stream
     * @return next object from stream cast to type
     * @throws PACDecodingException if types are incompatible
     * @throws IOException if reading from stream fails
     */
    public static <T extends ASN1Primitive> T as(final Class<T> type, final ASN1InputStream stream)
            throws PACDecodingException, IOException {
        return as(type, stream.readObject());

Consider an application streaming a video over http/2. Perhaps the user pauses the video and the application stops reading bytes from this stream. The buffer will fill up, and flow control prevents the server from sending more data on this stream. When the user unpauses her video the buffer drains, the read is acknowledged, and the server proceeds to stream data.

    }

    @Test
    @DisplayName("Reading with zero-length array returns 0")
    void readZeroLengthArrayReturnsZero() throws IOException {
        // Create stream with a message containing data
        byte[] data = new byte[] { 1, 2 };
        InputStream in = new ByteArrayInputStream(concat(messageHeader(2), data));
        SocketInputStream sis = new SocketInputStream(in);

  }

  public void testReadLines() throws IOException {
    // TODO(chrisn): Check in a better resource
    URL resource = getClass().getResource("testdata/i18n.txt");
    assertEquals(ImmutableList.of(I18N), Resources.readLines(resource, UTF_8));
  }

  public void testReadLines_withLineProcessor() throws IOException {
    URL resource = getClass().getResource("testdata/alice_in_wonderland.txt");