} else {
						offlineEndpoints = append(offlineEndpoints, fmt.Errorf("%s is unreachable: %w", clnt, err))
					}
				} else {
					onlineServers++
				}
				mu.Unlock()
			}(clnt)
		}
		wg.Wait()

		select {
		case <-ctx.Done():
			return ctx.Err()
		default:
			// Sleep and stagger to avoid blocked CPU and thundering
			// herd upon start up sequence.

                    // For now, this is a placeholder that simulates monitoring

                    // In a real implementation, we would:
                    // 1. Send SMB2 Change Notify request
                    // 2. Wait for response
                    // 3. Process changes
                    // 4. Notify the lease manager

                    // Use adaptive polling interval based on activity

					return 0
				}
				return -1
			}) != 0 {
				t.Fatalf("Expected %v but got %v", test.wants, gots)
			}
			// verify the objects to be deleted
			close(workers[0])
			wg.Wait()
			if len(gotExpired) != len(test.wantExpired) {
				t.Fatalf("Expected expiry of %d objects but got %d", len(test.wantExpired), len(gotExpired))
			}

import org.dbflute.utflute.core.PlainTestCase;
import org.testcontainers.Testcontainers;
import org.testcontainers.containers.GenericContainer;
import org.testcontainers.containers.wait.strategy.HttpWaitStrategy;

import io.minio.MakeBucketArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.SetObjectTagsArgs;

/**
 * @author shinsuke
 *
 */

                            }
                        } else {
                            resp.wait();
                            if (log.isTraceEnabled()) {
                                log.trace("Wait returned " + isDisconnected());
                            }
                            if (isDisconnected()) {

        
        for (WitnessRegistration registration : registrations.values()) {
            unregisterFutures.add(unregister(registration));
        }
        
        // Wait for all unregistrations to complete
        try {
            CompletableFuture.allOf(unregisterFutures.toArray(new CompletableFuture[0]))
                .get(10, TimeUnit.SECONDS);
        } catch (Exception e) {

                        }
                    }

                    final long start = System.currentTimeMillis();
                    while (timeout > 0) {
                        response.wait(timeout);

                        /* JetDirect printer can respond to regular broadcast query
                         * with node status so we need to check to make sure that

		wg.Add(1)
		go func(user User, language Language) {
			err := db.Model(&user).Association("Languages").Append(&language)
			AssertEqual(t, err, nil)

			wg.Done()
		}(user, languages[i])
	}
	wg.Wait()

	var find User
	err = db.Preload(clause.Associations).Where("id = ?", user.ID).First(&find).Error
	AssertEqual(t, err, nil)
	AssertAssociationCount(t, find, "Languages", int64(count), "after concurrent append")
}

// Check crawling status
while (crawler.crawlerContext.getStatus() == CrawlerStatus.RUNNING) {
    Thread.sleep(1000);
    System.out.println("Crawling in progress...");
}

// Wait for completion
crawler.awaitTermination();
System.out.println("Crawling completed");
```

### Custom Content Extractor

```java
public class CustomExtractor extends AbstractExtractor {
    @Override

                        }
                    }
                    results[index] = true; // Mark as successful
                });
                threads[i].start();
            }

            // Wait for all threads to complete
            for (Thread thread : threads) {
                thread.join();
            }
        }

        // Then
        for (int i = 0; i < threadCount; i++) {