return Collections.singleton(reference);
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    return new Present<>(
        checkNotNull(
            function.apply(reference),
            "the Function passed to Optional.transform() must not return null."));
  }

  @Override
  public boolean equals(@CheckForNull Object object) {
    if (object instanceof Present) {

    private final CountDownLatch delayLatch;

    DelayingIdentityLoader(CountDownLatch delayLatch) {
      this.delayLatch = delayLatch;
    }

    @Override
    public T apply(T key) {
      awaitUninterruptibly(delayLatch);
      return key;
    }
  }

  /*
   * TODO(cpovirk): eliminate duplication between these tests and those in LegacyMapMakerTests and
   * anywhere else
   */

	yaml, err := generateServiceAccountYAML(opt)
	if err != nil {
		return err
	}

	// Before we can apply the yaml, we have to ensure the system namespace exists.
	if err := createNamespaceIfNotExist(client, opt.Namespace); err != nil {
		return err
	}

	// Apply the YAML to the cluster.
	return client.ApplyYAMLContents(opt.Namespace, yaml)
}

  private var authenticator = JavaNetAuthenticator()
  private val fakeDns = FakeDns()
  private val recordingAuthenticator = RecordingAuthenticator()
  private val factory =
    TestValueFactory()
      .apply {
        dns = fakeDns
      }

  @BeforeEach
  fun setup() {
    Authenticator.setDefault(recordingAuthenticator)
  }

  @AfterEach
  fun tearDown() {
    Authenticator.setDefault(null)

    private final CountDownLatch delayLatch;

    DelayingIdentityLoader(CountDownLatch delayLatch) {
      this.delayLatch = delayLatch;
    }

    @Override
    public T apply(T key) {
      awaitUninterruptibly(delayLatch);
      return key;
    }
  }

  /*
   * TODO(cpovirk): eliminate duplication between these tests and those in LegacyMapMakerTests and
   * anywhere else
   */

    return Collections.singleton(reference);
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    return new Present<>(
        checkNotNull(
            function.apply(reference),
            "the Function passed to Optional.transform() must not return null."));
  }

  @Override
  public boolean equals(@CheckForNull Object object) {
    if (object instanceof Present) {

            println("Using timestamp from incoming build receipt: $buildTimestampFromReceipt")
            return buildTimestampFromReceipt
        }

        val timestampFormat = SimpleDateFormat("yyyyMMddHHmmssZ").apply {
            timeZone = TimeZone.getTimeZone("UTC")
        }
        val buildTimestampFromProperty = buildTimestampFromGradleProperty.orNull
        val buildTime = when {
            buildTimestampFromProperty != null -> {

  if any, in Source Code or other form. This patent license shall
  apply to the combination of the Contribution and the Program if, at
  the time the Contribution is added by the Contributor, such addition
  of the Contribution causes such combination to be covered by the
  Licensed Patents. The patent license shall not apply to any other
  combinations which include the Contribution. No hardware per se is
  licensed hereunder.

				// Date in a Lifecycle Expiration Policy.
				events = append(events, Event{
					Action: DeleteVersionAction,
					RuleID: rule.ID,
					Due:    now,
				})
				// No other conflicting actions apply to an expired object delete marker
				break
			}

			if !rule.Expiration.IsDaysNull() {
				// Specifying the Days tag will automatically perform ExpiredObjectDeleteMarker cleanup

        super(true);
        this.root = root;
    }

    /**
     * <p>Split the expression into parts, tokenized on the dot ('.') character. Then,
     * starting at the root object contained in this value source, apply each part
     * to the object graph below this root, using either 'getXXX()' or 'isXXX()'
     * accessor types to resolve the value for each successive expression part.