/** Default receive buffer size in bytes */
    int DEFAULT_RCV_BUF_SIZE = 60416;
    /** Default send buffer size in bytes */
    int DEFAULT_SND_BUF_SIZE = 16644;
    /** Default session limit */
    int DEFAULT_SSN_LIMIT = 250;
    /** Default connection timeout in milliseconds */
    int DEFAULT_CONN_TIMEOUT = 35000;

    /** Local address to bind to */
    InetAddress LADDR = Config.getLocalHost();

* Sie müssen `File()` nicht als Parameter-Defaultwert verwenden.
* Es wird eine <abbr title="warteschlangenartig">„gespoolte“</abbr> Datei verwendet:
    * Eine Datei, die bis zu einem bestimmten Größen-Limit im Arbeitsspeicher behalten wird, und wenn das Limit überschritten wird, auf der Festplatte gespeichert wird.
* Das bedeutet, es wird für große Dateien wie Bilder, Videos, große Binärdateien, usw. gut funktionieren, ohne den ganzen Arbeitsspeicher aufzubrauchen.

Например, если клиент попытается отправить query-параметр `tool` с значением `plumbus`, в виде:

```http
https://example.com/items/?limit=10&tool=plumbus
```

То в ответ он получит **ошибку**, сообщающую ему, что query-параметр `tool` не разрешен:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",

	// prefix.
	setBrowserRedirectMiddleware,
	// Adds 'crossdomain.xml' policy middleware to serve legacy flash clients.
	setCrossDomainPolicyMiddleware,
	// Limits all body and header sizes to a maximum fixed limit
	setRequestLimitMiddleware,
	// Validate all the incoming requests.
	setRequestValidityMiddleware,
	// Add upload forwarding middleware for site replication
	setUploadForwardingMiddleware,

      throws Exception {
    File fileA = newFile("file-a");
    File dir1 = newDir("dir-1");
    newFile("dir-1/file-b");
    newFile("dir-1/dir-2");

    assertThat(Iterables.limit(Files.fileTraverser().breadthFirst(rootDir), 3))
        .containsExactly(rootDir, fileA, dir1);
  }

  public void testFileTraverser_multipleDirectoryLayers_traversalReturnsAll() throws Exception {

    long limit = Long.MAX_VALUE + ((a ^ b) >>> (Long.SIZE - 1));
    if (leadingZeros < Long.SIZE | (a < 0 & b == Long.MIN_VALUE)) {
      // overflow
      return limit;
    }
    long result = a * b;
    if (a == 0 || result / a == b) {
      return result;
    }
    return limit;
  }

  /**

  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putBytes(ByteBuffer b) {
    if (b.hasArray()) {
      putBytes(b.array(), b.arrayOffset() + b.position(), b.remaining());
      Java8Compatibility.position(b, b.limit());
    } else {
      for (int remaining = b.remaining(); remaining > 0; remaining--) {
        putByte(b.get());
      }
    }
    return this;
  }

  @Override
  @CanIgnoreReturnValue

   *
   * <p><b>{@code Stream} equivalent:</b> {@link Stream#limit} (same).
   *
   * @param maxSize the maximum number of elements in the returned fluent iterable
   * @throws IllegalArgumentException if {@code size} is negative
   */
  public final FluentIterable<E> limit(int maxSize) {
    return from(Iterables.limit(getDelegate(), maxSize));
  }

  /**

    // Dummy value to associate with an Object in the backing Map
    private static final Object PRESENT = new Object();

    /**
     * Creates a new {@link LruHashSet} with the specified limit size.
     *
     * @param limitSize
     *            the maximum number of elements to retain in the set
     */
    public LruHashSet(final int limitSize) {
        map = new LruHashMap<>(limitSize);
    }

     * This method delegates to {@link FileInputStream#mark(int)}.
     *
     * @param readlimit the maximum limit of bytes that can be read before the mark position becomes invalid
     */
    @Override
    public synchronized void mark(final int readlimit) {
        fileInputStream.mark(readlimit);
    }

    /**