*
   * @throws NullPointerException if any key or value in {@code map} is null
   */
  public static <K, V> ImmutableMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
    if ((map instanceof ImmutableMap) && !(map instanceof SortedMap)) {
      @SuppressWarnings("unchecked") // safe since map is not writable
      ImmutableMap<K, V> kvMap = (ImmutableMap<K, V>) map;
      if (!kvMap.isPartialView()) {
        return kvMap;
      }

        dataStoreParams.put("key3", null);

        Map<String, Object> map = dataStoreParams.asMap();

        assertNotNull(map);
        assertEquals(3, map.size());
        assertEquals("value1", map.get("key1"));
        assertEquals(123, map.get("key2"));
        assertNull(map.get("key3"));

        // Verify that returned map is a copy
        map.put("key4", "value4");

    default void interpolate(
            @Nonnull Map<String, String> map, @Nullable UnaryOperator<String> callback, boolean defaultsToEmpty) {
        interpolate(map, callback, null, defaultsToEmpty);
    }

    /**
     * Interpolates the values in the given map using the provided callback function.
     *
     * @param map The map containing key-value pairs to be interpolated.

    IntHolder holderB = new IntHolder(2);
    Map<String, IntHolder> map = ImmutableSortedMap.of("a", holderA, "b", holderB);
    holderA.value = 3;
    assertTrue(map.entrySet().contains(immutableEntry("a", new IntHolder(3))));
    Map<String, Integer> intMap = ImmutableSortedMap.of("a", 3, "b", 2);
    assertEquals(intMap.hashCode(), map.entrySet().hashCode());
    assertEquals(intMap.hashCode(), map.hashCode());
  }

  @J2ktIncompatible

  }

  public void testEmptyMap() {
    Map<Character, String> map = ImmutableMap.of();
    ArrayBasedEscaperMap fem = ArrayBasedEscaperMap.create(map);
    // Non-null array of zero length.
    assertThat(fem.getReplacementArray()).isEmpty();
  }

  public void testMapLength() {
    Map<Character, String> map =
        ImmutableMap.of(
            'a', "first",
            'z', "last");

            new TestStringMapGenerator() {
              @Override
              protected Map<String, String> create(Entry<String, String>[] entries) {
                Map<String, String> map = populate(new HashMap<String, String>(), entries);
                return Collections.checkedMap(map, String.class, String.class);
              }
            })
        .named("checkedMap/HashMap")
        .withFeatures(

		}
	}
	return hdr, &tr.blk, p.err
}

// readOldGNUSparseMap reads the sparse map from the old GNU sparse format.
// The sparse map is stored in the tar header if it's small enough.
// If it's larger than four entries, then one or more extension headers are used
// to store the rest of the sparse map.
//
// The Header.Size does not reflect the size of any extended headers used.

    public int load() {
        final Map<String, Map<String, String[]>> relatedQueryMap = new HashMap<>();
        getAvailableRelatedQueryList().stream().forEach(entity -> {
            final String key = getHostKey(entity);
            Map<String, String[]> map = relatedQueryMap.get(key);
            if (map == null) {
                map = new HashMap<>();
                relatedQueryMap.put(key, map);
            }

        "A List should never equal a Map.", getMap().equals(copyToList(getMap().entrySet())));
  }

  private static <K, V> Map<K, V> newHashMap(
      Collection<? extends Entry<? extends K, ? extends V>> entries) {
    HashMap<K, V> map = new HashMap<>();
    for (Entry<? extends K, ? extends V> entry : entries) {
      map.put(entry.getKey(), entry.getValue());
    }
    return map;
  }

		{"nothing", []int64{0}, make(map[string]string)},
		{"small-0", []int64{11}, make(map[string]string)},
		{"small-1", []int64{509}, make(map[string]string)},
		{"small-2", []int64{5 * oneMiB}, make(map[string]string)},
		// // // cases 4-7: multipart part objects
		{"mp-0", []int64{5 * oneMiB, 10}, make(map[string]string)},
		{"mp-1", []int64{5*oneMiB + 1, 10}, make(map[string]string)},