final Map<K, V> map;

    MapMultimap(Map<K, V> map) {
      this.map = checkNotNull(map);
    }

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

    @Override
    public boolean containsKey(@Nullable Object key) {
      return map.containsKey(key);
    }

    @Override

        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");

    }

    // Test source map modifications
    public void test_sourceMapModifications() {
        TestSearchLogEvent event = new TestSearchLogEvent("id", 1L, "type");

        // Initial empty map
        Map<String, Object> map1 = new HashMap<>();
        event.setSourceMap(map1);
        assertEquals(0, event.toSource().size());

        // Add elements to the map
        map1.put("key1", "value1");

 * present in the map to be reclaimed by the garbage collector. Entries with reclaimed keys or
 * values may be removed from the map on each map modification or on occasional map accesses; such
 * entries may be counted by {@link Map#size}, but will never be visible to read or write
 * operations. A partially-reclaimed entry is never exposed to the user. Any {@link Map.Entry}

     * Returns {@literal true} if the given {@link Map} is {@literal null} or empty.
     *
     * @param map the map
     * @return {@literal true} if the map is {@literal null} or empty
     */
    public static boolean isEmpty(final Map<?, ?> map) {
        return map == null || map.isEmpty();
    }

    /**
     * Returns {@literal true} if the given {@link Map} is not {@literal null} and not empty.
     *

    final Map<K, V> map;

    MapMultimap(Map<K, V> map) {
      this.map = checkNotNull(map);
    }

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

    @Override
    public boolean containsKey(@Nullable Object key) {
      return map.containsKey(key);
    }

    @Override

 * from a parameter map.
 */
public class FieldConfigs {

    /**
     * Map containing field names as keys and their corresponding configuration values as values.
     */
    private final Map<String, String> params;

    /**
     * Constructs a new FieldConfigs instance with the specified parameter map.
     *

    @Test
    public void testMethodParameterType() throws Exception {
        final Map<TypeVariable<?>, Type> map = ParameterizedClassDescFactory.getTypeVariables(Hoge.class);
        final Method method = Hoge.class.getMethod("foo", Set.class, Map.class);
        ParameterizedClassDesc desc = ParameterizedClassDescFactory.createParameterizedClassDesc(method, 0, map);
        assertThat(desc.getRawClass(), is(sameClass(Set.class)));

            concreteImplementation.setKey(key);
            assertEquals(key, concreteImplementation.getKey());
        }

        @Test
        @DisplayName("Should set cache map")
        void testSetCacheMap() {
            Map<String, DfsReferralDataInternal> cacheMap = new HashMap<>();

            // Test with mock
            doNothing().when(mockReferralData).setCacheMap(cacheMap);

     *
     * @param dataMap the data map to populate
     * @param responseData the response data from crawling
     * @param document the parsed HTML document
     * @return the processed data map
     */
    protected Map<String, Object> processAdditionalData(final Map<String, Object> dataMap, final ResponseData responseData,
            final Document document) {