@Test fun clientSentFramesMustBeMasked() {
    data.write("8100".decodeHex())
    assertFailsWith<ProtocolException> {
      serverReader.processNextFrame()
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("Client-sent frames must be masked.")
    }
  }

  @Test fun serverSentFramesMustNotBeMasked() {
    data.write("8180".decodeHex())
    assertFailsWith<ProtocolException> {

### 3. Command-Line Import

**Using curl with bulk files**:

```bash
# Import GSA configuration
curl -X POST "http://localhost:8080/api/admin/backup/upload" \
  -u admin:admin \
  -F "file=@gsaconfig.xml"

# Import bulk documents
curl -X POST "http://localhost:8080/api/admin/backup/upload" \
  -u admin:admin \
  -F "file=@documents.bulk"
```

### 4. Direct Crawler Configuration

   *
   * @param className the name of the instance type
   * @since 18.0 (since 7.0 as {@code Objects.toStringHelper()}).
   */
  public static ToStringHelper toStringHelper(String className) {
    return new ToStringHelper(className);
  }

  /**
   * Support class for {@link MoreObjects#toStringHelper}.
   *
   * @author Jason Lee
   * @since 18.0 (since 2.0 as {@code Objects.ToStringHelper}).
   */

   *
   * @param className the name of the instance type
   * @since 18.0 (since 7.0 as {@code Objects.toStringHelper()}).
   */
  public static ToStringHelper toStringHelper(String className) {
    return new ToStringHelper(className);
  }

  /**
   * Support class for {@link MoreObjects#toStringHelper}.
   *
   * @author Jason Lee
   * @since 18.0 (since 2.0 as {@code Objects.ToStringHelper}).
   */

   org.codelibs.fess.FessBoot
   ```

2. **Access the Admin UI:**
   ```
   http://localhost:8080/admin/
   ```

3. **Test language selection:**
   - Check if your language appears in the language dropdown
   - Force your language by adding URL parameter: `?browser_lang=[locale]`
   - Example: `http://localhost:8080/admin/?browser_lang=sv`

4. **Verify translations:**
   - Navigate through different admin pages

        assertEquals("http://[2001:db8::1]/path/file", HcHttpClient.constructRedirectLocation("http://[2001:db8::1]/path/", "file"));
        assertEquals("http://example.com:8080/path/file", HcHttpClient.constructRedirectLocation("http://example.com:8080/path/", "file"));
        assertEquals("http://example.com/%E3%83%86%E3%82%B9%E3%83%88",
                HcHttpClient.constructRedirectLocation("http://example.com/", "テスト"));

     *
     * @return the port number (default 8080 if not specified)
     */
    protected static int getPort() {
        final String value = System.getProperty(FESS_PORT);
        if (value != null) {
            return Integer.parseInt(value);
        }
        return 8080;
    }

    /**
     * Gets the context path for the web application from system properties.

 * saml.idp.x509cert=MIIDqjCCApKgAwIBAgIGAYMwfYAwMA0G...
 * </pre>
 *
 * <h2>Service Provider URL Configuration</h2>
 * <p>By default, the SP URLs use {@code http://localhost:8080} as the base URL.
 * For production or when the IdP is configured with a different URL, you should
 * set one of the following:</p>
 *
 * <h3>Option 1: Set base URL (recommended for simplicity)</h3>
 * <pre>

    }

    /**
     * Builds a default redirect URL for OpenID Connect based on the environment.
     * Uses the configured base URL or defaults to http://localhost:8080 for compatibility
     * with common OIDC provider configurations.
     *
     * @return the default redirect URL
     */
    protected String buildDefaultRedirectUrl() {

   * <p>The returned iterable is an unmodifiable view of the input array.
   *
   * <p><b>{@code Stream} equivalent:</b> {@link java.util.stream.Stream#of(Object[])
   * Stream.of(T...)}.
   *
   * @since 20.0 (since 18.0 as an overload of {@code of})
   */
  public static <E extends @Nullable Object> FluentIterable<E> from(E[] elements) {
    return from(Arrays.asList(elements));
  }

  /**