// Test inner class LangAnalyzerConverter init
        AnalyzerConverter.LangAnalyzerConverter langConverter = converter.new LangAnalyzerConverter("en");

        langConverter.init();
        // Should not throw exception
    }

    @Test
    public void testLangAnalyzerConverterWithNullLang() throws IOException {
        // Test inner class with null language

g-bottom:20px;color:#fff;text-align:center}@-webkit-keyframes spinner-border{to{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}@keyframes spinner-border{to{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}.spinner-border{display:inline-block;width:2rem;height:2rem;vertical-align:-.125em;border:.25em solid currentcolor;border-right-color:transparent;border-radius:50%;-webkit-animation:.75s linear infinite spinner-border;animation:.75s linear infinite spinner-border}.spinner-...

 * RequestData request = RequestDataBuilder.newRequestData()
 *     .method("GET")
 *     .url("https://example.com")
 *     .weight(1.0f)
 *     .build();
 * </pre>
 *
 * <p>The builder is implemented using an inner class {@link RequestDataContext} that handles
 * the actual construction of the RequestData object.</p>
 *
 */
public final class RequestDataBuilder {
    private RequestDataBuilder() {
    }

    /**

import org.opensearch.index.query.QueryShardContext;

/**
 * Default implementation of QueryBuilder that wraps other QueryBuilder instances
 * and provides additional functionality for adding inner queries dynamically.
 * Supports both BoolQueryBuilder and DisMaxQueryBuilder as underlying implementations.
 */
public class DefaultQueryBuilder implements QueryBuilder {

    /**
     * Map storing related queries organized by virtual host key and search term.
     * The outer map key is the virtual host key, the inner map key is the search term
     * (in lowercase), and the value is an array of related query strings.
     */
    protected volatile Map<String, Map<String, String[]>> relatedQueryMap = Collections.emptyMap();

    /**

    private SmbComSessionSetupAndX setupAndX;

    @BeforeEach
    void setUp() throws Exception {
        MockitoAnnotations.openMocks(this);

        // Create a real ServerData instance as it's not mockable (inner class)
        SmbTransport.ServerData serverData = mockTransport.new ServerData();
        serverData.security = ServerMessageBlock.SECURITY_USER;
        serverData.encryptedPasswords = true;

 *   It allows you to register callbacks that will be executed when the computation is complete,
 *   either successfully (resolve) or with an error (reject).
 * </p>
 *
 * <p>
 *   The Deferred class has a Promise inner class that allows you to register callbacks
 *   to be executed when the computation is complete.
 *   The Promise class has then and error methods that allow you to register callbacks

    private Trans2FindFirst2Response response;

    @BeforeEach
    void setUp() {
        response = new Trans2FindFirst2Response();
    }

    // Test cases for SmbFindFileBothDirectoryInfo inner class
    @Test
    void testSmbFindFileBothDirectoryInfo_Getters() {
        Trans2FindFirst2Response.SmbFindFileBothDirectoryInfo info = response.new SmbFindFileBothDirectoryInfo();
        info.filename = "test.txt";

     */
    @Override
    public String toString() {
        return "MappingFile [path=" + path + ", mappingItemList=" + mappingItemList + ", id=" + id + "]";
    }

    /**
     * Inner class for handling updates to the character mapping file.
     * This class manages the temporary file creation, writing operations,
     * and atomic updates to ensure data consistency during modifications.
     */

import java.util.concurrent.atomic.AtomicInteger;

import org.codelibs.fess.crawler.container.StandardCrawlerContainer;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for {@link Handler} and its inner class {@link Handler.GcsURLConnection}.
 * This test covers URL parsing, connection state management, and thread-safety.
 */
public class HandlerTest extends PlainTestCase {
    @Override