when(nextResponse.getNextResponse()).thenReturn(thirdResponse);
        when(thirdResponse.getNextResponse()).thenReturn(null);

        // When - navigate through chain
        CommonServerMessageBlockResponse second = response.getNextResponse();
        CommonServerMessageBlockResponse third = second.getNextResponse();
        CommonServerMessageBlockResponse end = third.getNextResponse();

        // Then

            TestServerMessageBlock2Response result = testRequest.initResponse(mockContext);

            assertNull(result);
        }

        @Test
        @DisplayName("initResponse should chain responses for chained requests")
        void testInitResponseChained() {
            TestServerMessageBlock2Response response1 = new TestServerMessageBlock2Response(mockConfig);

        this(config, command, null);
    }

    /**
     * Constructs an AndX message block with command and chained command
     * @param config the configuration
     * @param command the SMB command
     * @param andx the chained command
     */
    protected AndXServerMessageBlock(final Configuration config, final byte command, final ServerMessageBlock andx) {
        super(config, command);

        FilterChain chain = createDefaultFilterChain();
        for (final Filter element : filterList) {
            chain = appendFilterChain(element, chain);
        }
        filterChain = chain;
    }

    /**
     * Appends a filter to the existing filter chain.
     *
     * @param filter the filter to append
     * @param chain the existing filter chain

        chain.add(normalizer1);
        chain.add(normalizer2);
        chain.add(normalizer3);

        String result = chain.normalize("test", "field");

        assertEquals("test-1-2-3", result);
    }

    @Test
    public void test_chainWithCustomNormalizer() throws Exception {
        NormalizerChain chain = new NormalizerChain();
        chain.add((text, field, langs) -> text.trim());

      // held
      chain = segment.newEntry(key, cache.hash(key), chain);
      if (i == 0) {
        head = chain;
      }
    }
  }

  @SuppressWarnings("GuardedBy")
  @Benchmark
  int time(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      // TODO(b/145386688): This access should be guarded by 'this.segment', which is not currently

            break;
        case FAVORITE:
            processFavoriteRequest(request, response, chain);
            break;
        case FAVORITES:
            processFavoritesRequest(request, response, chain);
            break;
        case PING:
            processPingRequest(request, response, chain);
            break;
        case SCROLL:

    @Override public Response intercept(Chain chain) throws IOException {
      long t1 = System.nanoTime();
      Request request = chain.request();
      logger.info(String.format("Sending request %s on %s%n%s",
          request.url(), chain.connection(), request.headers()));
      Response response = chain.proceed(request);

      long t2 = System.nanoTime();

/**
 * Enhanced Pre-Authentication Integrity Service for SMB 3.1.1.
 *
 * Provides comprehensive pre-authentication integrity protection against
 * downgrade attacks by maintaining cryptographic hash chains of all
 * negotiation and session setup messages.
 */
public class PreauthIntegrityService {

    private static final Logger log = LoggerFactory.getLogger(PreauthIntegrityService.class);

     * @param request The servlet request
     * @param response The servlet response
     * @param chain The filter chain
     * @throws IOException If an I/O error occurs
     * @throws ServletException If a servlet error occurs
     */
    @Override
    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
            throws IOException, ServletException {