return null;
        }

        /**
         * Creates a list from an array of configuration ID values.
         *
         * @param values array of configuration ID strings
         * @return list containing all values from the array
         */
        private static List<String> createConfigIdList(final String[] values) {
            final List<String> idList = new ArrayList<>();

    /** The list of stemmer override items loaded from the dictionary file. */
    List<StemmerOverrideItem> stemmerOverrideItemList;

    /**
     * Constructs a new stemmer override file.
     *
     * @param id        The unique identifier for this dictionary file.
     * @param path      The path to the dictionary file.
     * @param timestamp The last modified timestamp of the file.
     */

        // List data
        List<String> list = new ArrayList<>();
        list.add("item1");
        list.add("item2");
        TestAccessResultData<String> listData = new TestAccessResultData<>(list.toString().getBytes());
        Object retrievedList = testTransformer.getData(listData);
        assertEquals(list.toString(), retrievedList);

        // Null data

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.util.List;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

/**
 * Unit tests for DirectoryCacheEntry
 */
public class DirectoryCacheEntryTest {

    private DirectoryCacheEntry entry;

    protected int maxErrorCount = 2;

    /** List of finished crawler session IDs for cleanup */
    protected List<String> finishedSessionIdList = new ArrayList<>();

    /** List of document boost matchers for scoring enhancement */
    private final List<DocBoostMatcher> docBoostMatcherList = new ArrayList<>();

    /** List of active crawler instances */
    private List<Crawler> crawlerList;

        if (isEmpty(str)) {
            return EMPTY_STRINGS;
        }
        final List<String> list = newArrayList();
        final StringTokenizer st = new StringTokenizer(str, delim);
        while (st.hasMoreElements()) {
            list.add(st.nextElement().toString());
        }
        return list.toArray(new String[list.size()]);
    }

    /**
     * Removes whitespace from the left side of the string.

                    .collect(Collectors.joining(","));
            buf.append('[').append(json).append(']');
        } else if (value instanceof List) {
            final String json = ((List<?>) value).stream()
                    .map(s -> "\"" + StringEscapeUtils.escapeJson(s.toString()) + "\"")
                    .collect(Collectors.joining(","));

    /**
     * Adds a group or role name to the specified list.
     * @param list The list to add the group or role name to.
     * @param value The group or role name value.
     * @param useDomainServices Whether to use domain services for group resolution.
     */
    protected void addGroupOrRoleName(final List<String> list, final String value, final boolean useDomainServices) {
        list.add(value);

        return this.connection.getRequestProperty(key);
    }

    @Override
    public Map<String, List<String>> getRequestProperties() {
        final Map<String, List<String>> map = new HashMap<>();
        for (final Entry<String, List<String>> entry : this.requestProperties.entrySet()) {
            map.put(entry.getKey(), Collections.unmodifiableList(entry.getValue()));
        }

                last = current++;
                return n;
            } catch (final IndexOutOfBoundsException e) {
                throw new NoSuchElementException("current=" + current);
            }
        }

        @Override
        public void remove() {
            assertState(last != -1, "last == -1");
            ArrayMap.this.removeAt(last);
            if (last < current) {