}
            }
        }

        return -1;
    }

    /**
     * Processes a single crawl request by executing the HTTP request, handling redirects,
     * transforming the response data, and indexing the document.
     *
     * @param paramMap the data store parameters
     * @param dataMap the data map to be updated with response data

  /** Constructor for use by subclasses. */
  protected Converter() {
    this(true);
  }

  /** Constructor used only by {@code LegacyConverter} to suspend automatic null-handling. */
  Converter(boolean handleNullAutomatically) {
    this.handleNullAutomatically = handleNullAutomatically;
  }

  // SPI methods (what subclasses must implement)

  /**

import org.opensearch.index.query.QueryBuilders;

import com.google.common.collect.Lists;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

/**
 * Manager class for handling thumbnail generation and management.
 * Provides functionality to generate, cache, and serve thumbnail images for documents.
 */
public class ThumbnailManager {
    private static final String NOIMAGE_FILE_SUFFIX = ".txt";

    AtomicInteger computeCount = new AtomicInteger();
    AtomicInteger exceptionCount = new AtomicInteger();
    AtomicInteger computeNullCount = new AtomicInteger();
    @SuppressWarnings("CacheLoaderNull") // test of handling of erroneous implementation
    CacheLoader<String, String> countingIdentityLoader =
        new CacheLoader<String, String>() {
          @Override
          public String load(String key) throws InterruptedException {

    AtomicInteger computeCount = new AtomicInteger();
    AtomicInteger exceptionCount = new AtomicInteger();
    AtomicInteger computeNullCount = new AtomicInteger();
    @SuppressWarnings("CacheLoaderNull") // test of handling of erroneous implementation
    CacheLoader<String, String> countingIdentityLoader =
        new CacheLoader<String, String>() {
          @Override
          public String load(String key) throws InterruptedException {

                        if ((previousRange != null) && (currentRange != null)) {
                            // TODO shouldn't need to double up on this work, only done for simplicity of handling
                            // recommended
                            // version but the restriction is identical
                            VersionRange newRange = previousRange.restrict(currentRange);

                params.put(p.getFirst(), p.getSecond());
            });
            return params;
        }).get();
    }

    /**
     * Converts a number to its string representation, handling null values.
     *
     * @param value The number to convert
     * @return String representation of the number, or empty string if null
     */
    private String toNumberString(final Number value) {

import org.opensearch.index.query.QueryBuilders;

import com.fasterxml.jackson.databind.ObjectMapper;

import jakarta.servlet.http.Cookie;
import jakarta.servlet.http.HttpServletRequest;

/**
 * Helper class for handling search operations in Fess.
 *
 * This class provides comprehensive search functionality including document search,
 * scroll search, and bulk operations. It handles search request parameter processing,

import java.lang.reflect.WildcardType;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.codelibs.core.collection.CollectionsUtil;

/**
 * Utility class for handling generics in Java.
 *
 * @author koichik
 */
public abstract class GenericsUtil {

    /**
     * Do not instantiate.
     */
    protected GenericsUtil() {
    }

    /**

        DomUtils.insertContentElement(root, "inceptionYear", "2023");

        String xmlOutput = DomUtils.toXml(doc);

        // Verify text content handling
        assertTrue(xmlOutput.contains("<name>Test Project Name</name>"), "Should contain name with text content");
        assertTrue(