assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)

    // Give the server time to enact the socket policy if it's one that could happen after the
    // client has received the response.
    Thread.sleep(500)
    val response2 = getResponse(newRequest("/b"))
    response1.body
      .source()
      .timeout()
      .timeout(100, TimeUnit.MILLISECONDS)

                }

                final long minSleep = retryInterval + retryCount * 1000L;
                final long maxSleep = retryInterval + retryCount * 2000L;
                ThreadUtil.sleep(RandomUtils.nextLong(minSleep, maxSleep));
                retryCount++;
            }
        }
    }

    /**
     * Destroys the client and closes connections.
     */
    @PreDestroy

    // Service b startup takes at least 353 millis, but starting the timer is delayed by at least
    // 150 milliseconds. so in a perfect world the timing would be 353-150=203ms, but since either
    // of our sleep calls can be arbitrarily delayed we should just assert that there is a time
    // recorded.
    assertThat(startupTimes.get(b)).isNotNull();
  }

  public void testServiceStartStop() {

                    String command;
                    while (true) {
                        try {
                            while (!reader.ready()) {
                                ThreadUtil.sleep(1000L);
                            }
                            command = reader.readLine().trim();
                            if (logger.isDebugEnabled()) {

                    } else {
                        final long interval = fessConfig.getThumbnailGeneratorIntervalAsInteger().longValue();
                        if (interval > 0) {
                            ThreadUtil.sleep(interval);
                        }
                    }
                } else {
                    logger.warn("Thumbnail generator is not available: name={}", generatorName);
                }

            } else if (behavior == 1) { // return null
              computeNullCount.incrementAndGet();
              return null;
            } else if (behavior == 2) { // slight delay before returning
              Thread.sleep(5);
              computeCount.incrementAndGet();
              return key;
            } else {
              computeCount.incrementAndGet();
              return key;
            }
          }
        };

    failover.handleFailure(channel, error);
    
    // Verify channel marked as failed
    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

        assertEquals("ぶんるい", extractData.getValues("cp:category")[0]);
        assertEquals("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", extractData.getValues("Content-Type")[0]);
        assertEquals("かいしゃ", extractData.getValues("dc:publisher")[0]);
    }

    public void test_getTika_mspowerpoint() {

        log.info("Connection lost, waiting for witness notification before retry");
        
        // Wait briefly for witness notification before retrying
        try {
            Thread.sleep(2000);  // 2 second grace period
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
    }
    
    // Proceed with normal error handling/retry

          APPLICATION_TYPE, "vnd.openxmlformats-officedocument.presentationml.presentation");
  public static final MediaType OOXML_SHEET =
      createConstant(APPLICATION_TYPE, "vnd.openxmlformats-officedocument.spreadsheetml.sheet");
  public static final MediaType OPENDOCUMENT_GRAPHICS =
      createConstant(APPLICATION_TYPE, "vnd.oasis.opendocument.graphics");
  public static final MediaType OPENDOCUMENT_PRESENTATION =