</dependency>
		<dependency>
			<groupId>org.apache.tika</groupId>
			<artifactId>tika-parser-xml-module</artifactId>
			<version>${tika.version}</version>
			<exclusions>
				<exclusion>
					<groupId>xerces</groupId>
					<artifactId>xercesImpl</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.codelibs</groupId>
			<artifactId>jhighlight</artifactId>

    public static final String SYSTEM_PROP_PREFIX = "fess.system.";

    /** Configuration prefix for Fess settings. */
    public static final String FESS_CONFIG_PREFIX = "fess.config.";

    /** Xerces feature prefix for XML processing. */
    public static final String XERCES_FEATURE_PREFIX = "http://apache.org/xml/features/";

    /** Load external DTD feature name. */

import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * Main executable class for running crawling operations in the Fess search engine.
 * This class serves as the entry point for crawling web content, file systems, and data stores.
 * It manages the crawling lifecycle, including initialization, execution coordination,
 * monitoring, and cleanup operations.
 *

    /**
     * Handles document redirection requests.
     * Validates the document ID, logs click events if enabled, and redirects
     * to the target URL or serves file content directly if configured.
     *
     * @param form the go form containing document ID and tracking parameters
     * @return action response for redirection or content streaming

import org.lastaflute.web.login.credential.LoginCredential;
import org.lastaflute.web.response.ActionResponse;

/**
 * Manager class for coordinating SSO (Single Sign-On) authentication operations.
 *
 * This class serves as the central coordinator for SSO authentication in Fess.
 * It manages registered SSO authenticators, determines when SSO is available,
 * and delegates authentication operations to the appropriate SSO provider based

      assertEquals("Counts not as expected", Ints.asList(deltas), actualCounts);
    } finally {
      pool.shutdownNow();
    }

    // Since we have access to the backing map, verify that there are no zeroes in the map
    for (AtomicInteger value : map.values()) {
      assertTrue("map should not contain a zero", value.get() != 0);
    }
  }

  private static class MutateTask implements Callable<int[]> {

            }
            logger.debug("Client aborts this request.", e);
        }
    }

    /**
     * Processes requests for plugin resources (static files).
     * Sets appropriate content types and serves files from the resource path.
     *
     * @param request  the HTTP servlet request
     * @param response the HTTP servlet response
     * @param path     the plugin resource path
     */

            return OptionalThing.empty();
        }
        return OptionalThing.of(pipeline);
    }

    /**
     * Refreshes the crawling configuration cache by invalidating all cached entries.
     * This forces the next access to reload configurations from the underlying services.
     */
    public void refresh() {
        crawlingConfigCache.invalidateAll();
    }

    /**

   * AtomicInteger's atomic operations, with some help from ConcurrentMap's atomic operations on
   * creation and removal (including automatic removal of zeroes). If the modification of an
   * AtomicInteger results in zero, we compareAndSet the value to zero; if that succeeds, we remove
   * the entry from the Map. If another operation sees a zero in the map, it knows that the entry is

   *         .putAll("many", 1, 2, 3, 4, 5)
   *         .build();
   * }
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build
   * multiple multimaps in series. Each multimap contains the key-value mappings in the previously
   * created multimaps.
   *
   * @since 2.0
   */
  @DoNotMock
  public static class Builder<K, V> {