"CrawlerClient is null for URL: " + url + ". Unable to access the document without a crawler client.");
        }

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long startTime = systemHelper.getCurrentTimeAsLong();
        try (final ResponseData responseData = client.execute(RequestDataBuilder.newRequestData().get().url(url).build())) {
            if (responseData.getRedirectLocation() != null) {

        // than expected, so we're not asserting null for HOST1
    }

    @Test
    void testPopulateWithLongHostname() throws Exception {
        // Create a temporary lmhosts file with long hostname
        String longHostname = "VERYLONGHOSTNAMETHATSHOULDSTILLWORK";
        File lmhostsFile = tempDir.resolve("lmhosts_long").toFile();
        try (FileWriter writer = new FileWriter(lmhostsFile)) {

    }

    // Test serialization
    @Test
    public void test_serialVersionUID() {
        assertEquals(1L, getSerialVersionUID());
    }

    private long getSerialVersionUID() {
        try {
            java.lang.reflect.Field field = FessMessages.class.getDeclaredField("serialVersionUID");
            field.setAccessible(true);
            return field.getLong(null);

     * @return the calculated response
     */
    public static byte[] getNTLMv2Response(final byte[] responseKeyNT, final byte[] serverChallenge, final byte[] clientChallenge,
            final long nanos1601, final byte[] avPairs) {
        final int avPairsLength = avPairs != null ? avPairs.length : 0;
        final byte[] temp = new byte[28 + avPairsLength + 4];

        Encdec.enc_uint32le(0x00000101, temp, 0); // Header

        when(mockDelegate.getSoTimeout()).thenReturn(35000);
        when(mockDelegate.getConnTimeout()).thenReturn(35000);
        when(mockDelegate.getMaxMpxCount()).thenReturn(10);

        // When
        long dfsTtl = delegatingConfig.getDfsTtl();
        int responseTimeout = delegatingConfig.getResponseTimeout();
        int socketTimeout = delegatingConfig.getSoTimeout();
        int connTimeout = delegatingConfig.getConnTimeout();

        @NullAndEmptySource
        @ValueSource(strings = { "Simple ASCII", "Special chars: !@#$%^&*()", "Unicode: ñöt ascii ℃", "Mixed: ASCII + 中文 + Русский",
                "Emojis: 🎉🌟💻", "Very long string with multiple words and various characters 1234567890" })
        void testGetBytesWithVariousInputs(String input) {
            // When
            byte[] result = Strings.getBytes(input, StandardCharsets.UTF_8);

        hook.start();
      }
      for (Thread hook : hooks) {
        hook.join();
      }
    }
  }

  /* Half of a 1-second timeout in nanoseconds */
  private static final long HALF_SECOND_NANOS = NANOSECONDS.convert(1L, SECONDS) / 2;

  public void testShutdownAndAwaitTermination_immediateShutdown() throws Exception {
    ExecutorService service = Executors.newSingleThreadExecutor();

        // Setup mock file with minimal required behavior
        String content = "File content for testing";
        byte[] contentBytes = content.getBytes();

        when(smbFile.length()).thenReturn((long) contentBytes.length);
        when(smbFile.getInputStream()).thenReturn(new ByteArrayInputStream(contentBytes));

        // Use spy to avoid actual SMB operations
        NetworkExplorer spyExplorer = spy(networkExplorer);

We are going to start from where we left in the previous chapter and increment it.

## About JWT { #about-jwt }

JWT means "JSON Web Tokens".

It's a standard to codify a JSON object in a long dense string without spaces. It looks like this:

```
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
```

    SerializedForm(Object[] elements) {
      this.elements = elements;
    }

    Object readResolve() {
      return copyOf(elements);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  @J2ktIncompatible // serialization
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {
    throw new InvalidObjectException("Use SerializedForm");
  }