*/
  @CheckForNull @LazyInit
  private ImmutableCollection<? extends ListenableFuture<? extends InputT>> futures;

  private final boolean allMustSucceed;
  private final boolean collectsValues;

  AggregateFuture(
      ImmutableCollection<? extends ListenableFuture<? extends InputT>> futures,
      boolean allMustSucceed,
      boolean collectsValues) {

		writer.payloadBufferIndex = 0
	}
	return result
}

// Finish is the last call to the message writer - it sends any
// remaining record payload, then sends statistics and finally the end
// message.
func (writer *messageWriter) Finish(bytesScanned, bytesProcessed int64) error {
	select {
	case <-writer.doneCh:
		return fmt.Errorf("messageWriter is done")
	default:

例えば、途中のどこかの時点で、別の依存関係や*path operation*の中で、データベーストランザクションを「ロールバック」したり、その他のエラーを作成したりするコードがあった場合、依存関係の中で例外を受け取ることになります。

そのため、依存関係の中にある特定の例外を`except SomeException`で探すことができます。

同様に、`finally`を用いて例外があったかどうかにかかわらず、終了ステップを確実に実行することができます。

```Python hl_lines="3 5"
{!../../docs_src/dependencies/tutorial007.py!}
```

## `yield`を持つサブ依存関係

任意の大きさや形のサブ依存関係やサブ依存関係の「ツリー」を持つことができ、その中で`yield`を使用することができます。

    public static Properties getProperties(final String path) {
        assertArgumentNotEmpty("path", path);

        final Properties props = new Properties();
        final InputStream is = getResourceAsStream(path);
        try {
            props.load(is);
            return props;
        } catch (final IOException ex) {
            throw new IORuntimeException(ex);
        } finally {
            CloseableUtil.close(is);

   * @since 14.0
   */
  public static ByteSink asByteSink(File file, FileWriteMode... modes) {
    return new FileByteSink(file, modes);
  }

  private static final class FileByteSink extends ByteSink {

    private final File file;
    private final ImmutableSet<FileWriteMode> modes;

    private FileByteSink(File file, FileWriteMode... modes) {
      this.file = checkNotNull(file);

//
// The value is useful to stop processing early or when it is necessary to
// deliver a final empty token (which is different from a nil token).
// One could achieve the same behavior with a custom error value but
// providing one here is tidier.
// See the emptyFinalToken example for a use of this value.
var ErrFinalToken = errors.New("final token")

// Scan advances the [Scanner] to the next token, which will then be

        }
    }

    protected <T> void insertAll(final List<T> list, final OpType opType) {
        insertAll(list, opType, false);
    }

    protected <T> void insertAll(final List<T> list, final OpType opType, final boolean ignoreAlreadyExists) {
        final List<T> bufferedList = new ArrayList<>(bulkBufferSize);
        final StringBuilder failureBuf = new StringBuilder(100);

skip generating `Cluster` in this case. Warning: Envoy currently has a bug that *requires* `Endpoints` to be pushed any time the corresponding `Cluster` is pushed, so this optimization is intentionally turned off in this specific case.

Finally, we determine which subset of the type we need to generate. XDS has two modes - "State of the World (SotW)" and "Delta". In SotW, we generally need to generate all resources of the type, even if only one changed. Note that we actually need to *generate*...

 *             versions will allow to do this safely.
 */
@Deprecated
public class NtlmHttpURLConnection extends HttpURLConnection {

    private static final Logger log = LoggerFactory.getLogger(NtlmHttpURLConnection.class);
    private static final int MAX_REDIRECTS = Integer.parseInt(System.getProperty("http.maxRedirects", "20"));

    private HttpURLConnection connection;

    final Object value;

    IncomparableValueException(Object value) {
      super("Cannot compare value: " + value);
      this.value = value;
    }

    private static final long serialVersionUID = 0;
  }

  // Never make these public
  static final int LEFT_IS_GREATER = 1;
  static final int RIGHT_IS_GREATER = -1;