override fun getTrafficClass(): Int = delegate!!.trafficClass

  @Throws(IOException::class)
  override fun sendUrgentData(value: Int) {
    delegate!!.sendUrgentData(value)
  }

  override fun getChannel(): SocketChannel = delegate!!.channel

  override fun getHandshakeSession(): SSLSession = delegate!!.handshakeSession

  override fun getApplicationProtocol(): String = delegate!!.applicationProtocol

    try (FileOutputStream fos = new FileOutputStream(testFile)) {
      for (int i = 0; i < 500; i++) {
        fos.write(dummyData);
      }
    }
    try (ReadableByteChannel inChannel = new RandomAccessFile(testFile, "r").getChannel()) {
      ByteStreams.copy(inChannel, outChannel);
    }
    byte[] actual = out.toByteArray();
    for (int i = 0; i < 500 * chunkSize; i += chunkSize) {

    try (FileOutputStream fos = new FileOutputStream(testFile)) {
      for (int i = 0; i < 500; i++) {
        fos.write(dummyData);
      }
    }
    try (ReadableByteChannel inChannel = new RandomAccessFile(testFile, "r").getChannel()) {
      ByteStreams.copy(inChannel, outChannel);
    }
    byte[] actual = out.toByteArray();
    for (int i = 0; i < 500 * chunkSize; i += chunkSize) {

        assertArgumentNotNull("file", file);

        final FileInputStream is = InputStreamUtil.create(file);
        try {
            final FileChannel channel = is.getChannel();
            final long fileSize = ChannelUtil.size(channel);

            if (fileSize > maxSize) {
                throw new IORuntimeException(new IOException(

    @Override
    public byte[] read() throws IOException {
      Closer closer = Closer.create();
      try {
        FileInputStream in = closer.register(openStream());
        return ByteStreams.toByteArray(in, in.getChannel().size());
      } catch (Throwable e) {
        throw closer.rethrow(e);
      } finally {
        closer.close();
      }
    }

    @Override
    public String toString() {

    }

    @Test
    void testConstructor() {
        assertNotNull(channelManager);
        assertFalse(channelManager.isUseMultiChannel());
        assertEquals(0, channelManager.getChannels().size());
        assertNotNull(channelManager.getLoadBalancer());
    }

    @Test
    void testInitializationWithoutMultiChannelSupport() throws IOException {

        public ChannelGroup(String sessionId) {
            this.sessionId = sessionId;
        }

        public String getSessionId() {
            return sessionId;
        }

        public List<ChannelInfo> getChannels() {
            return new ArrayList<>(channels);
        }

        public void addChannel(ChannelInfo channel) {
            channels.add(channel);
            if (primaryChannel == null) {

    assertEquals(ChannelState.FAILED, channel.getState());
    
    // Verify recovery attempted
    Thread.sleep(2000);
    assertTrue(channel.getState() == ChannelState.ESTABLISHED 
        || manager.getChannels().isEmpty());
}
```

### 7.2 Integration Tests
```java
@Test
public void testMultiChannelThroughput() throws Exception {
    // Requires multi-NIC test environment

tashkent.su
termez.su
togliatti.su
troitsk.su
tselinograd.su
tula.su
tuva.su
vladikavkaz.su
vladimir.su
vologda.su

// Fancy Bits, LLC : http://getchannels.com
// Submitted by Aman Gupta <aman@getchannels.com>
channelsdvr.net
u.channelsdvr.net

// Fastly Inc. : http://www.fastly.com/
// Submitted by Fastly Security <******@****.***>
edgecompute.app
fastly-edge.com