return copy;
  }

  /**
   * Not supported. Use {@link #eraseAll} instead.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Use {@link #eraseAll}
   */
  @DoNotCall("Always throws UnsupportedOperationException")
  @Override
  @Deprecated
  public void clear() {
    throw new UnsupportedOperationException();
  }

    void handlesNullDirectory() throws Exception {
        SmbFilenameFilter filter = (dir, name) -> dir == null;

        boolean result = filter.accept(null, "anything");

        assertTrue(result, "Filter should accept when dir is null as defined");
    }

    /**
     * Exception flow: filter throws SmbException and it propagates to caller.
     */
    @Test

    void connectWrapException_wraps_io_and_unkhost() throws Exception {
        // Subclass to control connect() behavior
        SmbTreeConnection c = new SmbTreeConnection(ctx) {
            @Override
            public SmbTreeHandleImpl connect(SmbResourceLocatorImpl loc) throws java.io.IOException {
                throw new java.net.UnknownHostException("nohost");
            }
        };

    } catch (IOException e) {
      result.close();
      throw e;
    }
    return result;
  }

  @Override public Socket createSocket(
      String host, int port, InetAddress localHost, int localPort) throws IOException {
    return createSocket(host, port);
  }

  @Override public Socket createSocket(InetAddress host, int port) throws IOException {
    Socket result = createSocket();

    try {

        e.printStackTrace();
      }

      @Override public void onResponse(Call call, Response response) throws IOException {
        try (ResponseBody responseBody = response.body()) {
          if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

          Headers responseHeaders = response.headers();
          for (int i = 0, size = responseHeaders.size(); i < size; i++) {

     *
     * @param textual the textual representation of the SID
     * @throws SmbException if the textual format is invalid
     */
    public SID(final String textual) throws SmbException {
        final StringTokenizer st = new StringTokenizer(textual, "-");
        if (st.countTokens() < 3 || !st.nextToken().equals("S")) {
            // need S-N-M
            throw new SmbException("Bad textual SID format: " + textual);
        }

                    throw new DictionaryException("Failed to update " + dictFile.getPath());
                }
            } catch (final IOException e) {
                throw new DictionaryException("Failed to update " + dictFile.getPath(), e);
            }

        }).orElse(() -> {
            throw new DictionaryException(dictFile.getPath() + " does not exist.");
        });

      throws IOException {
    return appendTo(appendable, iterable(first, second, rest));
  }

  /**
   * Appends the string representation of each of {@code parts}, using the previously configured
   * separator between each, to {@code builder}. Identical to {@link #appendTo(Appendable,
   * Iterable)}, except that it does not throw {@link IOException}.
   */
  @CanIgnoreReturnValue

        } catch (final Exception e) {
            throw new SitemapsException("Could not parse XML Sitemaps.", e);
        }
        return handler.getSitemapSet();
    }

    /**
     * Disables external resources for the SAX parser to prevent XXE attacks.
     * @param parser the SAX parser to configure
     * @throws SAXNotRecognizedException if the parser doesn't recognize the feature

    /**
     * Updates the dictionary file with content from an input stream.
     *
     * @param in The input stream containing the new dictionary content.
     * @throws IOException if an I/O error occurs.
     */
    public synchronized void update(final InputStream in) throws IOException {
        try (StopwordsUpdater updater = new StopwordsUpdater(null)) {
            reload(updater, in);
        }
    }

    @Override