assertNull(emptyOptional.orElse(null));
    }

    @Test
    public void test_ofNullable_multipleTypesInSequence() {
        // Test multiple different types in sequence to ensure type safety
        OptionalEntity<String> stringOpt = OptionalUtil.ofNullable("string");
        OptionalEntity<Integer> intOpt = OptionalUtil.ofNullable(42);

 *
 * This service provides functionality for querying, aggregating, and managing
 * various types of search logs including search logs, click logs, favorite logs,
 * and user information logs. It supports different aggregation types for
 * analytics and reporting purposes.
 */
public class SearchLogService {

    /** Date format pattern for parsing time ranges. */

 * Helper class for scroll-based search operations in OpenSearch.
 * Centralizes scroll logic to reduce code duplication across settings and indexer classes.
 *
 * <p>This class provides methods to perform scroll-based searches with different processing patterns:
 * <ul>
 * <li>{@link #scrollSearch(Client, SuggestSettings, String, QueryBuilder, int, HitProcessor)} - Collects results into a list</li>

        assertEquals("コンテンツ", doc.get("content_ja"));
    }

    @Test
    public void test_updateDocument_withoutLangFields() {
        languageHelper.langFields = new String[] { "description" }; // Different field

        Map<String, Object> doc = new HashMap<>();
        doc.put("lang", "ja");
        doc.put("title", "タイトル");
        doc.put("content", "コンテンツ");

        languageHelper.updateDocument(doc);

            assertEquals("implementation-test.txt", impl.getFileName());
        }

        @Test
        @DisplayName("Test multiple implementations with different values")
        void testMultipleImplementations() {
            // Create multiple implementations
            FileNotifyInformation addedImpl = createImplementation(FileNotifyInformation.FILE_ACTION_ADDED, "added.txt");

    @Test
    public void test_poll_withWeightTx() {
        final String sessionId = "poll_session6";
        final List<OpenSearchUrlQueue> urlQueueList = new ArrayList<>();

        // Create items with different weights
        for (int i = 1; i <= 5; i++) {
            final OpenSearchUrlQueue urlQueue = new OpenSearchUrlQueue();
            urlQueue.setCreateTime(System.currentTimeMillis());
            urlQueue.setDepth(1);

    // 2 6to4 addresses differing in the embedded IPv4 address should
    // hash to the different values.
    assertThat(InetAddresses.getCoercedIPv4Address(InetAddresses.forString("2002:0102:0304::1")))
        .isNotEqualTo(
            InetAddresses.getCoercedIPv4Address(InetAddresses.forString("2002:0506:0708::1")));

    // 2 6to4 addresses NOT differing in the embedded IPv4 address should

import java.util.regex.Pattern;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link ForwardingWrapperTester}. Live in a different package to detect reflection
 * access issues, if any.
 *
 * @author Ben Yu
 */
public class ForwardingWrapperTesterTest extends TestCase {

        assertEquals(expectedFlags, dfsRootEnum.getFlags());
    }

    @Test
    @DisplayName("Multiple server names should be handled correctly")
    void testDifferentServerNames() {
        // Test with different server names
        String[] serverNames = { "server1", "domain.local", "192.168.1.100", "FILESERVER" };

        for (String serverName : serverNames) {

  private val typeHintStack = mutableListOf<Any?>()

  /**
   * The type hint for the current object. Used to pick adapters based on other fields, such as
   * in extensions which have different types depending on their extension ID.
   */
  var typeHint: Any?
    get() = typeHintStack.lastOrNull()
    set(value) {
      typeHintStack[typeHintStack.size - 1] = value
    }