private ExecutionSequencer() {}

  /** Creates a new instance. */
  public static ExecutionSequencer create() {
    return new ExecutionSequencer();
  }

  /** This reference acts as a pointer tracking the head of a linked list of ListenableFutures. */
  private final AtomicReference<ListenableFuture<@Nullable Void>> ref =
      new AtomicReference<>(immediateVoidFuture());

    assertEquals(Outer.Sub.class, subtype.getRawType());
    assertThat(subtype.getActualTypeArguments()[0]).isInstanceOf(WildcardType.class);
    ParameterizedType owner = (ParameterizedType) subtype.getOwnerType();
    assertEquals(Outer.class, owner.getRawType());
    // This returns a strange ? extends Sub2<Y> type, which isn't ideal.
    TypeToken<?> unused = new TypeToken<BaseWithTypeVar<List<?>>>() {}.getSubtype(Outer.Sub2.class);

    return new ConcatenatedHashFunction(hashFunctions);
  }

  /**
   * Used to randomize {@link #goodFastHash} instances, so that programs which persist anything
   * dependent on the hash codes they produce will fail sooner.
   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource
  static final int GOOD_FAST_HASH_SEED = (int) System.currentTimeMillis();

  /**
   * Returns a hash function implementing the <a

   * ServiceManager} constructor without having to close over the partially constructed {@link
   * ServiceManager} instance (i.e. avoid leaking a pointer to {@code this}).
   */
  private final ServiceManagerState state;

  private final ImmutableList<Service> services;

  /**
   * Constructs a new instance for managing the given services.
   *

   * ServiceManager} constructor without having to close over the partially constructed {@link
   * ServiceManager} instance (i.e. avoid leaking a pointer to {@code this}).
   */
  private final ServiceManagerState state;

  private final ImmutableList<Service> services;

  /**
   * Constructs a new instance for managing the given services.
   *

     */
    public ACE[] getSecurity() throws IOException {
        return getSecurity(false);
    }

    /**
     * Returns the owner user SID for this file
     *
     * @return the owner user SID
     * @throws IOException if an I/O error occurs
     */
    public SID getOwnerUser() throws IOException {

  quality requirements. For example, we check if the CLA is signed, PR has
  sufficient description, if applicable unit tests are added, if it is a
  reasonable contribution (meaning it is not a single liner cosmetic PR).

**2. Valid?**

-   If the PR passes all the quality checks then we go ahead and assign a
    reviewer.
-   If the PR didn't meet the validation criteria, we request for additional

	if err := xjwt.ParseWithStandardClaims(token, claims, []byte(globalActiveCred.SecretKey)); err != nil {
		return errAuthentication
	}

	owner := claims.AccessKey == globalActiveCred.AccessKey || claims.Subject == globalActiveCred.AccessKey
	if !owner {
		return errAuthentication
	}

	return nil
}

// Authenticates storage client's requests and validates for skewed time.

	inBytes       atomic.Int64
	inMessages    atomic.Int64
	outMessages   atomic.Int64
	reconnects    atomic.Int64
	lastConnect   atomic.Pointer[time.Time]
	lastPingDur   atomic.Int64

	// For testing only
	debugInConn   net.Conn
	debugOutConn  net.Conn
	blockMessages atomic.Pointer[<-chan struct{}]
	addDeadline   time.Duration
	connMu        sync.Mutex
}

    /** Policy information class for DNS domain. */
    /** Policy information level for DNS domain information. */
    public static final int POLICY_INFO_DNS_DOMAIN = 12;

    /**
     * LSA SID pointer.
     */
    public static class LsarSidPtr extends NdrObject {

        /**
         * Default constructor for LsarSidPtr.
         */
        public LsarSidPtr() {
            // Default constructor