@Test
    void testResolveSids_WithNullContext() throws CIFSException {
        doThrow(new CIFSException("Context cannot be null")).when(sidResolver).resolveSids(eq(null), anyString(), any(SID[].class));

        assertThrows(CIFSException.class, () -> sidResolver.resolveSids(null, testServerName, testSids));
    }

    @Test
    void testResolveSids_WithNullServerName() throws CIFSException {

    return delegate().offerLast(e, timeout, unit);
  }

  @Override
  public E takeFirst() throws InterruptedException {
    return delegate().takeFirst();
  }

  @Override
  public E takeLast() throws InterruptedException {
    return delegate().takeLast();
  }

  @Override
  public @Nullable E pollFirst(long timeout, TimeUnit unit) throws InterruptedException {

        if (configId == null) {
            final String docId = DocumentUtil.getValue(doc, fessConfig.getIndexFieldId(), String.class);
            throw new FessSystemException("configId is null in document. docId: " + docId);
        }
        if (configId.length() < 2) {
            throw new FessSystemException("Invalid configId length: " + configId + ". ConfigId must be at least 2 characters long.");
        }

   * writer each time it is called.
   *
   * <p>The caller is responsible for ensuring that the returned writer is closed.
   *
   * @throws IOException if an I/O error occurs while opening the writer
   */
  public abstract Writer openStream() throws IOException;

  /**
   * Opens a new buffered {@link Writer} for writing to this sink. The returned stream is not

    }

    // Uses reflection to set internal array to null to exercise defensive branch in length()
    @Test
    @DisplayName("length(): handles internal null defensively")
    void length_handlesNullInternalArray() throws Exception {
        // Arrange
        SecurityBlob blob = new SecurityBlob(new byte[] { 1, 2, 3 });

        // Force internal field to null via reflection to exercise defensive branch

    @Deprecated
    Wagon getWagon(String protocol) throws UnsupportedProtocolException;

    @Deprecated
    Wagon getWagon(Repository repository) throws UnsupportedProtocolException, WagonConfigurationException;

    //
    // Retriever
    //
    void getArtifact(Artifact artifact, ArtifactRepository repository, TransferListener transferListener, boolean force)
            throws TransferFailedException, ResourceDoesNotExistException;

   * @param separatorPattern the pattern that determines whether a subsequence is a separator. This
   *     pattern may not match the empty string.
   * @return a splitter, with default settings, that uses this pattern
   * @throws IllegalArgumentException if {@code separatorPattern} matches the empty string
   */
  @GwtIncompatible // java.util.regex
  public static Splitter on(Pattern separatorPattern) {

     * @throws UnknownHostException
     *             if the host cannot be resolved to find out.
     */
    boolean isInConflict(CIFSContext tc) throws UnknownHostException;

    /**
     * Determines if this address is active.
     *
     * @param tc
     *            context to use
     * @return whether this address is active
     *
     * @throws UnknownHostException

    public void tearDown() throws IOException {}
  }

  private static class EmptyCharSourceFactory implements CharSourceFactory {

    @Override
    public CharSource createSource(String data) throws IOException {
      return CharSource.empty();
    }

    @Override
    public String getExpected(String data) {
      return "";
    }

    @Override
    public void tearDown() throws IOException {}
  }

        @Override
        public HashMap getTrustedDomains(NtlmPasswordAuthentication auth) throws SmbAuthException {
            if (disabled || auth.domain == "?")
                return null;
            return super.getTrustedDomains(auth);
        }

        @Override
        public SmbTransport getDc(String domain, NtlmPasswordAuthentication auth) throws SmbAuthException {
            if (disabled)
                return null;