static final Predicate<Entry<String, Integer>> CORRECT_LENGTH =
      input -> input.getKey().length() == input.getValue();

  abstract Map<String, Integer> createUnfiltered();

  public void testFilteredKeysIllegalPut() {
    Map<String, Integer> unfiltered = createUnfiltered();
    Map<String, Integer> filtered = Maps.filterKeys(unfiltered, NOT_LENGTH_3);
    filtered.put("a", 1);
    filtered.put("b", 2);

  private final ImmutableMap<K, V> map;

  ImmutableMapValues(ImmutableMap<K, V> map) {
    this.map = map;
  }

  @Override
  public int size() {
    return map.size();
  }

  @Override
  public UnmodifiableIterator<V> iterator() {
    return new UnmodifiableIterator<V>() {
      final UnmodifiableIterator<Entry<K, V>> entryItr = map.entrySet().iterator();

      @Override

    #; overrideMap = map:{
    #    ; fess.freeGen.mail.targetDir = ./playsql/data/mail
    #}

    # you can adjust LastaDoc contents
    ; lastaDocContentsMap = map:{
        ; headerMap = map:{
            #; isSuppressSchemaHtmlLink = true
        }
        ; actionMap = map:{
            ; isSuppressDescriptionInList = true
            ; isSuppressAuthorInList = true
        }

  public void testForMapSerialization() {
    Map<String, Integer> map = Maps.newHashMap();
    map.put("foo", 1);
    map.put("bar", 2);
    Multimap<String, Integer> multimapView = Multimaps.forMap(map);
    SerializableTester.reserializeAndAssert(multimapView);
  }

  public void testForMapRemoveAll() {
    Map<String, Integer> map = Maps.newHashMap();
    map.put("foo", 1);
    map.put("bar", 2);
    map.put("cow", 3);

     * </ul>
     *
     * @param type
     *            パラメータ化された{@link Map}
     * @param map
     *            パラメータ化された型が持つ型変数をキー、型引数を値とする{@link Map}
     * @return パラメータ化された{@link Map}のキーの実際の型
     */
    public static Class<?> getActualKeyClassOfMap(final Type type, final Map<TypeVariable<?>, Type> map) {
        if (!isTypeOf(type, Map.class)) {
            return null;
        }

  Object writeReplace() {
    return new SerializedForm<V>(map);
  }

  @GwtIncompatible // serialization
  @J2ktIncompatible
  private static class SerializedForm<V> implements Serializable {
    final ImmutableMap<?, V> map;

    SerializedForm(ImmutableMap<?, V> map) {
      this.map = map;
    }

    Object readResolve() {
      return map.values();
    }

    // GET /api/admin/systeminfo
    @Execute
    public JsonResponse<ApiResult> get$index() {
        final List<Map<String, String>> bugReportItems = getBugReportItems();
        final List<Map<String, String>> envItems = getEnvItems();
        final List<Map<String, String>> fessPropItems = getFessPropItems(fessConfig);
        final List<Map<String, String>> propItems = getPropItems();

  // Non-loading versions:
  private final Map<Object, Object> map = new MapMaker().makeMap(); // Returns ConcurrentHashMap
  private final Cache<Object, Object> cache = CacheBuilder.newBuilder().recordStats().build();
  private final Cache<Object, Object> cacheNoStats = CacheBuilder.newBuilder().build();

  @BeforeExperiment
  void setUp() {
    map.put(TEST_KEY, TEST_VALUE);
    cache.put(TEST_KEY, TEST_VALUE);

        Map<Object, Object> map = new HashMap<Object, Object>();
        assertEquals(0, (int) StreamUtil.stream(map).get(s -> s.toArray().length));
    }

    public void test_ofMap() {
        Map<String, String> map = new HashMap<String, String>();
        map.put("key1", "value1");
        map.put("key2", "value2");

import static org.codelibs.core.collection.Maps.map;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

import java.util.Map;

import org.junit.Test;

/**
 * @author koichik
 */
public class MapsTest {

    /**
     * @throws Exception
     */
    @Test
    public void test() throws Exception {
        final Map<String, Integer> map = map("a", 1).$("b", 2).$("c", 3).$();