// root fallback
        SmbResourceLocatorImpl d = locator("smb:///");
        assertEquals("smb://", d.getName());
    }

    @Test
    @DisplayName("Parent URL is computed correctly")
    void testGetParent() {
        SmbResourceLocatorImpl a = locator("smb://server/share/dir/file.txt");
        assertEquals("smb://server/share/dir/", a.getParent());

   * the information of these hash codes in an ordered fashion. That is, whenever two equal hash
   * codes are produced by two calls to this method, it is <i>as likely as possible</i> that each
   * was computed from the <i>same</i> input hash codes in the <i>same</i> order.
   *
   * @throws IllegalArgumentException if {@code hashCodes} is empty, or the hash codes do not all
   *     have the same bit length
   */

        byte[] actual = NtlmUtil.getNTLMv2Response(key, server, clientChallenge, nanos1601, avPairs);

        // Assert
        assertArrayEquals(expected, actual, "Computed response must match manual construction");
        // Also verify client challenge sits at mac(16) + blob offset 16
        assertArrayEquals(clientChallenge, Arrays.copyOfRange(actual, 16 + 16, 16 + 16 + 8));
    }

    computationComplete.await();

    // At this point, the listener should be holding the seed value (a -> a), and the map should
    // contain the computed value (b -> b), since the clear() happened before the computation
    // completed.
    assertEquals(1, listener.size());
    RemovalNotification<String, String> notification = listener.remove();
    assertEquals("a", notification.getKey());

    computationComplete.await();

    // At this point, the listener should be holding the seed value (a -> a), and the map should
    // contain the computed value (b -> b), since the clear() happened before the computation
    // completed.
    assertEquals(1, listener.size());
    RemovalNotification<String, String> notification = listener.remove();
    assertEquals("a", notification.getKey());

   * the information of these hash codes in an ordered fashion. That is, whenever two equal hash
   * codes are produced by two calls to this method, it is <i>as likely as possible</i> that each
   * was computed from the <i>same</i> input hash codes in the <i>same</i> order.
   *
   * @throws IllegalArgumentException if {@code hashCodes} is empty, or the hash codes do not all
   *     have the same bit length
   */

  private final ImmutableListMultimap<String, String> parameters;

  @LazyInit private @Nullable String toString;

  @LazyInit private int hashCode;

  // We need to differentiate between "not computed" and "computed to be absent."
  @SuppressWarnings("NullableOptional")
  @LazyInit
  private @Nullable Optional<Charset> parsedCharset;

@GwtCompatible
public final class Suppliers {
  private Suppliers() {}

  /**
   * Returns a new supplier which is the composition of the provided function and supplier. In other
   * words, the new supplier's value will be computed by retrieving the value from {@code supplier},
   * and then applying {@code function} to that value. Note that the resulting supplier will not
   * call {@code supplier} or invoke {@code function} until it is called.
   */

    int approxSize = IntMath.divide(n * IntMath.log2(n, CEILING), Long.SIZE, CEILING);
    ArrayList<BigInteger> bignums = new ArrayList<>(approxSize);

    // Start from the pre-computed maximum long factorial.
    int startingNumber = LongMath.factorials.length;
    long product = LongMath.factorials[startingNumber - 1];
    // Strip off 2s from this value.

@GwtCompatible
public final class Suppliers {
  private Suppliers() {}

  /**
   * Returns a new supplier which is the composition of the provided function and supplier. In other
   * words, the new supplier's value will be computed by retrieving the value from {@code supplier},
   * and then applying {@code function} to that value. Note that the resulting supplier will not
   * call {@code supplier} or invoke {@code function} until it is called.
   */