private static Map<String, String> toHashMap(Entry<String, String>[] entries) {
    return populate(new HashMap<String, String>(), entries);
  }

  // TODO: call conversion constructors or factory methods instead of using
  // populate() on an empty map
  @CanIgnoreReturnValue
  private static <T, M extends Map<T, String>> M populate(M map, Entry<T, String>[] entries) {
    for (Entry<T, String> entry : entries) {

      this.builder = builder;
    }

    @Override
    protected Map<String, String> create(Entry<String, String>[] entries) {
      LocalCache<String, String> map = makeLocalCache(builder);
      for (Entry<String, String> entry : entries) {
        map.put(entry.getKey(), entry.getValue());
      }
      return map;
    }
  }

  @AndroidIncompatible // test-suite builders

    var entry = hpackReader!!.dynamicTable[readerHeaderTableLength() - 3]!!
    checkEntry(entry, "custom-key", "custom-value", 54)

    // [  2] (s =  53) cache-control: no-cache
    entry = hpackReader!!.dynamicTable[readerHeaderTableLength() - 2]!!
    checkEntry(entry, "cache-control", "no-cache", 53)

    // [  3] (s =  57) :authority: www.example.com

  }

  boolean removeEntriesIf(Predicate<? super Entry<K, Collection<V>>> predicate) {
    Iterator<Entry<K, Collection<V>>> entryIterator = unfiltered.asMap().entrySet().iterator();
    boolean changed = false;
    while (entryIterator.hasNext()) {
      Entry<K, Collection<V>> entry = entryIterator.next();
      K key = entry.getKey();
      Collection<V> collection = filterCollection(entry.getValue(), new ValuePredicate(key));

  }

  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;
  }

   * {@code equals} to comply with the Entry contract, to avoid a possible nefarious implementation
   * of equals.
   *
   * @param entry the entry for which to return an unmodifiable view
   * @return an unmodifiable view of the entry
   */
  static <K extends @Nullable Object, V extends @Nullable Object> Entry<K, V> unmodifiableEntry(
      Entry<? extends K, ? extends V> entry) {
    checkNotNull(entry);

    Entry<K, V> entry = cacheEntry; // store local reference for thread-safety

    // Check cache. We use == on purpose because it's cheaper and a cache miss is ok.
    if (entry != null && entry.getKey() == key) {
      return entry.getValue();
    }
    return null;
  }

  void clearCache() {
    cacheEntry = null;
  }

   * {@code equals} to comply with the Entry contract, to avoid a possible nefarious implementation
   * of equals.
   *
   * @param entry the entry for which to return an unmodifiable view
   * @return an unmodifiable view of the entry
   */
  static <K extends @Nullable Object, V extends @Nullable Object> Entry<K, V> unmodifiableEntry(
      Entry<? extends K, ? extends V> entry) {
    checkNotNull(entry);

  /**
   * Returns an entry with a key less than the keys of the {@link #samples()} and less than the key
   * of {@link #belowSamplesGreater()}.
   */
  Entry<K, V> belowSamplesLesser();

  /**
   * Returns an entry with a key less than the keys of the {@link #samples()} but greater than the
   * key of {@link #belowSamplesLesser()}.
   */
  Entry<K, V> belowSamplesGreater();

  /**

    /**
     * Adds user attributes to the LDAP entry for user creation.
     *
     * @param entry the BasicAttributes to add user attributes to
     * @param user the user object containing attribute values
     */
    protected void addUserAttributes(final BasicAttributes entry, final User user) {
        entry.put(new BasicAttribute("cn", user.getName()));