### Document Language Detection

During crawling and indexing, Fess:

1. Detects language from document content using Apache Tika
2. Validates against `supported.languages` list
3. Creates language-specific fields (e.g., `content_ja`, `title_en`, `content_sv`)
4. Applies language-specific analyzers for better search results

Configured in `fess_config.properties`:

            throw new SsoLoginException("unexpected set of artifacts received");
        }
    }

    /**
     * Validates the OAuth2 state parameter.
     * @param session The HTTP session containing stored state data.
     * @param state The state parameter to validate.
     * @return The validated state data.
     */
    protected StateData validateState(final HttpSession session, final String state) {

    //                                                                           =========
    /**
     * Validates document fields according to index field requirements.
     *
     * @param doc the document to validate
     * @param throwError consumer to handle validation errors
     */

      DIGIT_MATCHER.or(LETTER_MATCHER).or(DASH_MATCHER);

  /**
   * Helper method for {@link #validateSyntax(List)}. Validates that one part of a domain name is
   * valid.
   *
   * @param part The domain name part to be validated
   * @param isFinalPart Is this the final (rightmost) domain part?
   * @return Whether the part is valid
   */

        });
        return redirectWith(getClass(), moreUrl("list/1").params("dictId", form.dictId));
    }

    /**
     * Update an existing stemmer override item.
     * Validates the form data and updates the item in the dictionary.
     *
     * @param form The edit form containing updated item data
     * @return HTML response redirecting to the list page on success
     */
    @Execute

            childList.add(uq);
            urlQueueService.offerAll(crawlerContext.sessionId, childList);
        }
    }

    /**
     * Validates whether the URL queue entry is valid for crawling.
     * @param urlQueue The URL queue entry to validate.
     * @return true if valid, false otherwise.
     */
    protected boolean isValid(final UrlQueue<?> urlQueue) {

     * Updates the LDAP configuration.
     */
    public void updateConfig() {
        isBind = false;
    }

    /**
     * Validates the LDAP connection.
     *
     * @return True if the LDAP connection is valid, otherwise false.
     */
    protected boolean validate() {
        if (!isBind) {
            if (fessConfig.getLdapAdminSecurityPrincipal() == null || fessConfig.getLdapAdminSecurityCredentials() == null) {

        return crawlingConfig.getConfigParameterMap(config);
    }

    /**
     * Validates if the given URL string is a valid URL.
     *
     * @param urlStr the URL string to validate
     * @return true if the URL is valid, false otherwise
     */
    protected boolean isValidUrl(final String urlStr) {
        if (StringUtil.isBlank(urlStr)) {

        }
        cb.query().addOrderBy_CreatedTime_Desc();
    }

    /**
     * Sets up the conditions for storing a crawling information record.
     * Validates that the entity is not null and sets the creation time if not already present.
     *
     * @param crawlingInfo the crawling information entity to prepare for storage

            } else {
              return Integer.compare(m1.getParameterTypes().length, m2.getParameterTypes().length);
            }
          }
        });
  }

  /** Validates that the given method's signature meets all of our assumptions. */
  private static void validateMethod(Method method) {
    String desc = method.toString();

    assertTrue(desc, isAnyEnter(method) || isWaitFor(method));