if (clazz.isAnnotation()) {
      return (Class<? extends Annotation>) clazz;
    } else {
      throw new IllegalArgumentException(rootLocaleFormat("%s is not an annotation.", clazz));
    }
  }

  public void testFeatureEnums() throws Exception {
    assertGoodFeatureEnum(CollectionFeature.class);
    assertGoodFeatureEnum(ListFeature.class);
    assertGoodFeatureEnum(SetFeature.class);

    this.iterator = iterator;
  }

  @Override
  public Iterator<E> iterator() {
    if (iterator == null) {
      // TODO: throw something else? Do we worry that people's code and tests
      // might be relying on this particular type of exception?
      throw new IllegalStateException();
    }
    try {
      return iterator;
    } finally {
      iterator = null;
    }
  }

     * @param auth
     *            The NTLM password authenticator containing user credentials
     * @throws SmbException
     *             If there is an error setting up the signing digest
     */
    public SMB1SigningDigest(final SmbTransportInternal transport, final NtlmPasswordAuthenticator auth) throws SmbException {
        this.digest = Crypto.getMD5();
        try {

  }

  @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
  private static void closeAll(BaseStream<?, ?>[] toClose) {
    // If one of the streams throws an exception, continue closing the others, then throw the
    // exception later. If more than one stream throws an exception, the later ones are added to the
    // first as suppressed exceptions. We don't catch Error on the grounds that it should be allowed

  /**
   * Returns a {@code TopKSelector} that collects the lowest {@code k} elements added to it,
   * relative to the natural ordering of the elements, and returns them via {@link #topK} in
   * ascending order.
   *
   * @throws IllegalArgumentException if {@code k < 0} or {@code k > Integer.MAX_VALUE / 2}
   */
  public static <T extends Comparable<? super T>> TopKSelector<T> least(int k) {
    return least(k, Ordering.natural());
  }

  /**

  // public so that it can be referenced in generated GWT tests.
  @Override
  public void setUp() throws Exception {
    if (setUp != null) {
      setUp.run();
    }
  }

  // public so that it can be referenced in generated GWT tests.
  @Override
  public void tearDown() throws Exception {
    if (tearDown != null) {
      tearDown.run();
    }
  }

    @Override
    public void setUp() throws Exception {
        super.setUp();
        ssoManager = new SsoManager() {
            @Override
            protected String getSsoType() {
                return currentSsoType;
            }
        };
        testAuthenticator = new TestSsoAuthenticator();
    }

    @Override
    public void tearDown() throws Exception {
        currentSsoType = Constants.NONE;

        } catch (GSSException e) {
            throw new SmbException("Context setup failed", e);
        }
    }

    /**
     * Set the Kerberos subject
     *
     * @param subject
     *            the subject to set
     */
    protected void setSubject(Subject subject) {
        this.subject = subject;
    }

    @Override
    public void refresh() throws CIFSException {

     *
     * @param buffer the byte array containing the message data
     * @param bufferIndex the starting index in the buffer
     * @return message length
     * @throws SMBProtocolDecodingException if decoding fails
     */
    int decode(byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException;

    /**
     * Encodes this message into a byte array.
     *
     * @param dst the destination byte array

            assertEquals(443, Handler.DEFAULT_HTTPS_PORT);
        }

        @Test
        @DisplayName("DEFAULT_HTTPS_PORT should be public static final")
        void testDefaultHttpsPortModifiers() throws NoSuchFieldException {
            // When
            var field = Handler.class.getField("DEFAULT_HTTPS_PORT");

            // Then
            assertTrue(Modifier.isPublic(field.getModifiers()));