}

  @LazyInit @CheckForNull private transient ColumnMap columnMap;

  @Override
  public Map<C, Map<R, @Nullable V>> columnMap() {
    ColumnMap map = columnMap;
    return (map == null) ? columnMap = new ColumnMap() : map;
  }

  @WeakOuter
  private class ColumnMap extends ArrayMap<C, Map<R, @Nullable V>> {
    private ColumnMap() {
      super(columnKeyToIndex);
    }

    @Override

   *
   * @see #assertMoreInvariants
   * @param map the map to check.
   */
  protected final void assertInvariants(Map<K, V> map) {
    Set<K> keySet = map.keySet();
    Collection<V> valueCollection = map.values();
    Set<Entry<K, V>> entrySet = map.entrySet();

    assertEquals(map.size() == 0, map.isEmpty());
    assertEquals(map.size(), keySet.size());
    assertEquals(keySet.size() == 0, keySet.isEmpty());

    }

    public void setHeaders(final Map<String, List<String>> headers) {
        if (headers != null) {
            final Map<String, List<String>> map = new HashMap<>();
            headers.entrySet().stream().filter(e -> e.getKey() != null)
                    .forEach(e -> map.put(e.getKey().toLowerCase(Locale.ROOT), e.getValue()));
            this.headers = map;
        }
    }

func unstructureIstioType(spec any) (map[string]any, error) {
	b, err := yaml.Marshal(spec)
	if err != nil {
		return nil, err
	}
	iSpec := map[string]any{}
	err = yaml.Unmarshal(b, &iSpec)
	if err != nil {
		return nil, err
	}
	return iSpec, nil
}

func convertToUnsignedInt32Map(s []string) map[string]uint32 {
	out := make(map[string]uint32, len(s))
	for _, l := range s {

      // '!' represents an interior node that represents a REGISTRY entry in the map.
      // '?' represents a leaf node, which represents a REGISTRY entry in map.
      // ':' represents an interior node that represents a private entry in the map
      // ',' represents a leaf node, which represents a private entry in the map.
      String domain = DIRECT_JOINER.join(stack);

      if (domain.length() > 0) {

      ImmutableMap<Class<? extends B>, B> map = mapBuilder.buildOrThrow();
      if (map.isEmpty()) {
        return of();
      } else {
        return new ImmutableClassToInstanceMap<>(map);
      }
    }
  }

  /**
   * Returns an immutable map containing the same entries as {@code map}. If {@code map} somehow

  /**
   * Returns a map view that associates each key with the corresponding values in the multimap.
   * Changes to the returned map, such as element removal, will update the underlying multimap. The
   * map does not support {@code setValue()} on its entries, {@code put}, or {@code putAll}.
   *
   * <p>When passed a key that is present in the map, {@code asMap().get(Object)} has the same

            @Override
            public ExtractData getText(InputStream in, Map<String, String> params) {
                return null;
            }
        });
        assertEquals(1, extractorFactory.getExtractor(key).getWeight());
        extractorFactory.addExtractor(key, new Extractor() {
            @Override
            public ExtractData getText(InputStream in, Map<String, String> params) {
                return null;
            }

    Map<Integer, String> map = CompactLinkedHashMap.create();
    map.put(1, "a");
    map.put(4, "b");
    map.put(3, "d");
    map.put(2, "c");
    map.remove(4);
    testHasMapEntriesInOrder(map, 1, "a", 3, "d", 2, "c");
  }

  public void testInsertionOrderAfterRemoveLastEntry() {
    Map<Integer, String> map = CompactLinkedHashMap.create();
    map.put(1, "a");
    map.put(4, "b");
    map.put(3, "d");

                    .filter(QueryBuilders.termQuery(fessConfig.getIndexFieldConfigId(), configIdValue));

            final List<Map<String, Object>> docs = getDocumentListByQuery(searchEngineClient, queryBuilder,
                    new String[] { fessConfig.getIndexFieldId(), fessConfig.getIndexFieldDocId() });
            for (final Map<String, Object> doc : docs) {
                final Object oldIdValue = doc.get(fessConfig.getIndexFieldId());