* the {@link Writer#nullWriter()} method returns a new instance whose methods throw after the
   * instance is {@link Writer#close() closed}.
   *
   * @since 15.0
   */
  public static Writer nullWriter() {
    return NullWriter.INSTANCE;
  }

  private static final class NullWriter extends Writer {

    private static final NullWriter INSTANCE = new NullWriter();

        buf[10] = 6; // parameterDisplacement low
        buf[11] = 0; // high
        buf[12] = 7; // dataCount low
        buf[13] = 0; // high
        buf[14] = 8; // dataOffset low
        buf[15] = 0; // high
        buf[16] = 9; // dataDisplacement low
        buf[17] = 0; // high
        buf[18] = 1; // setupCount (only one byte)

        // Call the method under test

	_ = x[ErrSSECustomerKeyMD5Mismatch-146]
	_ = x[ErrInvalidSSECustomerParameters-147]
	_ = x[ErrIncompatibleEncryptionMethod-148]
	_ = x[ErrKMSNotConfigured-149]
	_ = x[ErrKMSKeyNotFoundException-150]
	_ = x[ErrKMSDefaultKeyAlreadyConfigured-151]
	_ = x[ErrNoAccessKey-152]
	_ = x[ErrInvalidToken-153]
	_ = x[ErrEventNotification-154]
	_ = x[ErrARNNotification-155]
	_ = x[ErrRegionNotification-156]

   *
   * <p>This method always returns the same object. That object is serializable; deserializing it
   * results in the same object too.
   *
   * @since 15.0
   */
  public static DiscreteDomain<BigInteger> bigIntegers() {
    return BigIntegerDomain.INSTANCE;
  }

  private static final class BigIntegerDomain extends DiscreteDomain<BigInteger>

 * UTF-8.
 *
 * <p><b>Note:</b> This escaper produces <a
 * href="https://url.spec.whatwg.org/#percent-encode">uppercase</a> hexadecimal sequences.
 *
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible
public final class PercentEscaper extends UnicodeEscaper {

  // In some escapers spaces are escaped to '+'
  private static final char[] plusSign = {'+'};

 * to create multiple escaper instances that have the same character replacement mapping consider
 * using {@link ArrayBasedEscaperMap}.
 *
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible
@SuppressWarnings("EscapedEntity") // We do mean for the user to see "&" etc.
public abstract class ArrayBasedUnicodeEscaper extends UnicodeEscaper {

   *
   * @since 15.0
   */
  public static HashFunction sipHash24() {
    return SipHashFunction.SIP_HASH_24;
  }

  /**
   * Returns a hash function implementing the <a href="https://131002.net/siphash/">64-bit
   * SipHash-2-4 algorithm</a> using the given seed.
   *
   * @since 15.0
   */
  public static HashFunction sipHash24(long k0, long k1) {

        message[8] = 0x03;

        // LM Response (24 bytes at offset 64)
        message[12] = 24; // Length
        message[13] = 0;
        message[14] = 24; // Max Length
        message[15] = 0;
        message[16] = 64; // Offset
        message[17] = 0;
        message[18] = 0;
        message[19] = 0;

        // NT Response (24 bytes at offset 88)
        message[20] = 24; // Length

    assertEquals(10, (int) memoizedSupplier.get());
    // it still should only have executed once due to memoization
    assertEquals(1, countingSupplier.calls);

    Thread.sleep(150);

    assertEquals(20, (int) memoizedSupplier.get());
    // old value expired
    assertEquals(2, countingSupplier.calls);

    assertEquals(20, (int) memoizedSupplier.get());

        assertEquals(100, auth.getAuthenticationTTL());

        // Still not expired immediately
        assertFalse(auth.isExpired());

        // Wait for expiration
        Thread.sleep(150);

        // Should be expired now
        assertTrue(auth.isExpired());

        // Reset timestamp
        auth.resetAuthenticationTimestamp();
        assertFalse(auth.isExpired());