if (element == null) {
        if (exceptionSupplier != null) {
          throw exceptionSupplier.get();
        } else {
          throw new NoSuchElementException();
        }
      } else if (extras.isEmpty()) {
        return uncheckedCastNullableTToT(element);
      } else {
        throw multiples(false);
      }
    }
  }

  private MoreCollectors() {}

     *
     * @param tc the CIFS context
     * @param chlng the server challenge
     * @return the signing key
     * @throws SmbException if an SMB error occurs
     * @throws GeneralSecurityException if a security error occurs
     */
    public byte[] getSigningKey(CIFSContext tc, byte[] chlng) throws SmbException, GeneralSecurityException {
        switch (tc.getConfig().getLanManCompatibility()) {
        case 0:
        case 1:

     * @return the actual version string with timestamp and build number, or null if not found
     * @throws SAXException if XML parsing fails
     * @throws IOException if I/O error occurs
     */
    protected String getSnapshotActualVersion(final DocumentBuilder builder, final String pluginUrl, final String version)
            throws SAXException, IOException {
        String timestamp = null;
        String buildNumber = null;

    private final ServerSocket serverSocket;

    private MyServerExampleWithFrq() throws IOException {
      this.serverSocket = new ServerSocket(0);
    }

    static MyServerExampleWithFrq create(AtomicBoolean finalizeReferentRan) throws IOException {
      MyServerExampleWithFrq myServer = new MyServerExampleWithFrq();
      ServerSocket serverSocket = myServer.serverSocket;

    void testReadPacketTypeSpecialStream() throws IOException {
        // Create a mock stream that returns exactly -1 on first read (special case)
        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(-1); // Immediate EOF

        byte[] buffer = new byte[10];

        // The readn method will return 0 when stream returns -1
        // So this should still throw IOException, not return -1

        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8))) {
            return br.lines()
                .map(String::trim)
                .filter(s -> !s.isEmpty())
                .collect(Collectors.toList());
        }
    }

    }

    @Test
    @DisplayName("createContext: no Kerberos in initial token and no fallback -> throws")
    void createContext_noKerberosNoFallback_throws() throws CIFSException {
        Kerb5Authenticator auth = new Kerb5Authenticator((Subject) null);

        // Build a token with an arbitrary non-kerberos mechanism OID
        ASN1ObjectIdentifier unsupported = new ASN1ObjectIdentifier("1.2.3.4.5");

                    throw new ConfigPropertyNotFoundException("filter.null");
                default:
                    throw new ConfigPropertyNotFoundException(propertyKey);
                }
            }
        };

        ComponentUtil.register(fessConfig, "fessConfig");
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        ComponentUtil.setFessConfig(null);

  }

  /** Returns a plan for the first attempt at [route]. This throws if no plan is possible. */
  @Throws(IOException::class)
  internal fun planConnectToRoute(
    route: Route,
    routes: List<Route>? = null,
  ): ConnectPlan {
    if (route.address.sslSocketFactory == null) {
      if (ConnectionSpec.CLEARTEXT !in route.address.connectionSpecs) {
        throw UnknownServiceException("CLEARTEXT communication not enabled for client")

  }

  public void testSuccessful() throws Exception {
    assertThat(future.set(1)).isTrue();
    assertSuccessful(future, 1);
  }

  public void testFailed() throws Exception {
    Exception cause = new Exception();
    assertThat(future.setException(cause)).isTrue();
    assertFailed(future, cause);
  }

  public void testCanceled() throws Exception {