Handles all indexing operations, content parsing, and word management (bad words, elevate words).

### SuggestSettings (Configuration)
Location: `src/main/java/org/codelibs/fess/suggest/settings/SuggestSettings.java`

Manages configuration stored in OpenSearch: analyzers, bad words, elevate words, timeouts.

### SuggestItem (Domain Entity)
Location: `src/main/java/org/codelibs/fess/suggest/entity/SuggestItem.java`

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
 * on the current configuration.
 */
public class SsoManager {

        assertTrue(exception instanceof CIFSException, "NbtException should be an instance of CIFSException");
    }

    /**
     * Test the getErrorString method with various error classes and codes to ensure all branches are covered.
     */
    @ParameterizedTest
    @MethodSource("provideErrorClassAndCodeForGetErrorString")
    @DisplayName("getErrorString should return correct messages for all defined error classes and codes")

        assertEquals(0x123456, target.getPipeType());
        assertEquals("\\\\pipe\\\\my-pipe", target.getUncPath());
    }

    @Test
    @DisplayName("ensureTreeConnected caches tree and acquires on each call")
    void testEnsureTreeConnectedCaching() throws CIFSException {
        // Arrange: first ensureTreeConnected comes from pipe
        when(pipe.ensureTreeConnected()).thenReturn(tree);

import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;

import jakarta.annotation.PostConstruct;

/**
 * KeyMatchHelper is a helper class for KeyMatch feature.
 * It manages KeyMatch instances and provides methods to build queries for boosting documents.
 */
public class KeyMatchHelper extends AbstractConfigHelper {
    private static final Logger logger = LogManager.getLogger(KeyMatchHelper.class);

        assertFalse(auth.isAnonymous());
        assertFalse(auth.isGuest());
    }

    @ParameterizedTest
    @EnumSource(SubjectVariant.class)
    @DisplayName("getSubject: caches results and refresh resets cache")
    void testGetSubjectLoginFailuresCacheAndRefresh(SubjectVariant variant) throws Exception {
        JAASAuthenticator auth = buildAuthenticator(variant);

package org.codelibs.fess.app.pager;

import java.io.Serializable;
import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

/**
 * Pager class for handling user list pagination.
 * This class manages pagination state and user search criteria for the user management interface.
 */
public class UserPager implements Serializable {

    /**
     * Default constructor for UserPager.
     */
    public UserPager() {

import java.util.Iterator;

import jcifs.smb1.Config;
import jcifs.smb1.UniAddress;
import jcifs.smb1.util.LogStream;

/**
 * Implements DFS (Distributed File System) referral caching and resolution.
 * This class manages DFS referral cache and provides DFS path resolution functionality.
 */
public class Dfs {

    /**
     * Default constructor for Dfs.
     * Initializes the DFS referral system.
     */
    public Dfs() {

/**
 * Pager class for stemmer override dictionary management.
 *
 * This class provides pagination functionality for displaying stemmer override
 * dictionary entries in the administrative interface. It manages page state,
 * navigation controls, and provides methods for calculating page boundaries
 * and navigation elements.
 */
public class StemmerOverridePager implements Serializable {

                assertNotNull(result);
                assertEquals(1, result.size());
                assertNotNull(result.get(0).getFileName());
                assertTrue(result.get(0).getFileName().matches("file[1-3]\\.txt"));
            }
        } finally {
            executor.shutdown();
        }
    }

    /**
     * Test watch timeout scenario
     */
    @Test