@NullMarked
public class MapGenerators {
  public static class ImmutableMapGenerator extends TestStringMapGenerator {
    @Override
    protected Map<String, String> create(Entry<String, String>[] entries) {
      ImmutableMap.Builder<String, String> builder = ImmutableMap.builder();
      for (Entry<String, String> entry : entries) {
        checkNotNull(entry);
        builder.put(entry.getKey(), entry.getValue());
      }

            public String[] getQueryAdditionalScrollResponseFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalCacheResponseFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalHighlightedFields(String... fields) {

    String[] array = new String[] {"a"};
    List<String[]> list = ImmutableList.<String[]>of(array);
    assertEquals(singletonList(array), list);
  }

  public void testCopyOf_emptyArray() {
    String[] array = new String[0];
    List<String> list = ImmutableList.copyOf(array);
    assertEquals(emptyList(), list);
  }

  public void testCopyOf_arrayOfOneElement() {
    String[] array = new String[] {"a"};

    int i = 0;
    for (Object o : entries) {
      @SuppressWarnings("unchecked")
      Entry<String, String> e = (Entry<String, String>) o;
      array[i++] = e;
    }
    return create(array);
  }

  protected abstract ListMultimap<String, String> create(Entry<String, String>[] entries);

  @Override
  @SuppressWarnings("unchecked")

    return new Converter<String, String>(handleNullAutomatically) {
      @Override
      protected String doForward(String string) {
        return "forward";
      }

      @Override
      protected String doBackward(String string) {
        return "backward";
      }
    };
  }

  public void testSerialization_identity() {
    Converter<String, String> identityConverter = Converter.identity();

  public static class ImmutableListMultimapGenerator extends TestStringListMultimapGenerator {
    @Override
    protected ListMultimap<String, String> create(Entry<String, String>[] entries) {
      ImmutableListMultimap.Builder<String, String> builder = ImmutableListMultimap.builder();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return builder.build();
    }
  }

    private final SuggestSettings settings;

    /** Analyzer map. */
    protected static Map<String, Set<String>> analyzerMap = new ConcurrentHashMap<>();
    /** Field analyzer mapping map. */
    protected static Map<String, Map<String, FieldAnalyzerMapping>> fieldAnalyzerMappingMap = new ConcurrentHashMap<>();

    /** Supported languages. */

    @SuppressWarnings("checkstyle:parameternumber")
    protected static String constructMissingArtifactMessage(
            String message,
            String indentation,
            String groupId,
            String artifactId,
            String version,
            String type,
            String classifier,
            String downloadUrl,
            List<String> path) {
        StringBuilder sb = new StringBuilder(message);

    protected Map<String, String> handlerParameterMap;

    protected Map<String, String> handlerScriptMap;

    protected CrawlerClientFactory crawlerClientFactory = null;

    protected Map<ConfigName, Map<String, String>> configParameterMap;

    public DataConfig() {
        setBoost(1.0f);
    }

    @Override
    public String getDocumentBoost() {
        return getBoost().toString();

        map.put("エ", new String[] { "e" });
        map.put("オ", new String[] { "o" });

        map.put("カ", new String[] { "ka" });
        map.put("キ", new String[] { "ki" });
        map.put("ク", new String[] { "ku" });
        map.put("ケ", new String[] { "ke" });
        map.put("コ", new String[] { "ko" });

        map.put("サ", new String[] { "sa" });