checkState(!successorIterator.hasNext());
    if (!nodeIterator.hasNext()) {
      return false;
    }
    node = nodeIterator.next();
    successorIterator = graph.successors(node).iterator();
    return true;
  }

  /**
   * If the graph is directed, each ordered [source, target] pair will be visited once if there is
   * an edge connecting them.
   */

    }

    @Test
    public void testRdmaConfigurationProperties() throws CIFSException {
        Properties props = new Properties();
        props.setProperty("jcifs.smb.client.useRDMA", "true");
        props.setProperty("jcifs.smb.client.rdmaProvider", "disni");
        props.setProperty("jcifs.smb.client.rdmaReadWriteThreshold", "16384");
        props.setProperty("jcifs.smb.client.rdmaMaxSendSize", "131072");

    inputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());

    inputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());

    checkArgument(value >= 0, "Not true that %s is non-negative.", value);
    return value;
  }

  @CanIgnoreReturnValue
  static long checkNonNegative(long value) {
    checkArgument(value >= 0, "Not true that %s is non-negative.", value);
    return value;
  }

  @CanIgnoreReturnValue
  static int checkPositive(int value) {
    checkArgument(value > 0, "Not true that %s is positive.", value);

    checkArgument(value >= 0, "Not true that %s is non-negative.", value);
    return value;
  }

  @CanIgnoreReturnValue
  static long checkNonNegative(long value) {
    checkArgument(value >= 0, "Not true that %s is non-negative.", value);
    return value;
  }

  @CanIgnoreReturnValue
  static int checkPositive(int value) {
    checkArgument(value > 0, "Not true that %s is positive.", value);

var EqualFoldTests = []struct {
	s, t string
	out  bool
}{
	{"abc", "abc", true},
	{"ABcd", "ABcd", true},
	{"123abc", "123ABC", true},
	{"αβδ", "ΑΒΔ", true},
	{"abc", "xyz", false},
	{"abc", "XYZ", false},
	{"abcdefghijk", "abcdefghijX", false},
	{"abcdefghijk", "abcdefghij\u212A", true},
	{"abcdefghijK", "abcdefghij\u212A", true},
	{"abcdefghijkz", "abcdefghij\u212Ay", false},

  /*
   * Conceptually, these two variables describe the executor being in
   * one of three states:
   *   - Active: shutdown == false
   *   - Shutdown: runningTasks > 0 and shutdown == true
   *   - Terminated: runningTasks == 0 and shutdown == true
   */
  @GuardedBy("lock")
  private int runningTasks = 0;

  @GuardedBy("lock")
  private boolean shutdown = false;

  @Override
  public void execute(Runnable command) {

	lockRequesterInfo1 := lockRequesterInfo{
		Owner:           "owner",
		Writer:          true,
		UID:             "0123-4567",
		Timestamp:       UTCNow().UnixNano(),
		TimeLastRefresh: UTCNow().UnixNano(),
	}
	lockRequesterInfo2 := lockRequesterInfo{
		Owner:           "owner",
		Writer:          true,
		UID:             "89ab-cdef",
		Timestamp:       UTCNow().UnixNano(),
		TimeLastRefresh: UTCNow().UnixNano(),

		privKey, err := bytesToPrivateKey(pk)
		if err != nil {
			return fmt.Errorf("decoding key returned: %w", err)
		}
		sr.SetPrivateKey(privKey)
	}
	sr.ReturnNonDecryptable(true)

	// Debug corrupted streams.
	if false {
		sr.SkipEncrypted(true)
		return sr.DebugStream(os.Stdout)
	}
	extracted := false
	for {
		stream, err := sr.NextStream()
		if err != nil {
			if err == io.EOF {
				if extracted {