}

    /**
     * Saves error messages to the session.
     * The messages will be displayed to the user on the next page load.
     *
     * @param validationMessagesLambda a lambda function to configure the error messages
     */
    protected void saveError(final VaMessenger<FessMessages> validationMessagesLambda) {
        final FessMessages messages = createMessages();

            final String message = e.getMessage();
            assertNotNull("Error message should not be null", message);
            assertFalse("Error message should not be empty", message.trim().isEmpty());
            assertTrue("Error message should start with action verb", message.startsWith("Failed to extract"));
            assertTrue("Error message should contain 'text content'", message.contains("text content"));
        }

            }
            return getQueryProcessor().execute(context, boostQuery.getQuery(), boostQuery.getBoost());
        }
        throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                "Unknown q: " + query.getClass() + " => " + query);
    }

                logger.debug("PhraseQuery: query={}, boost={}", query, boost);
            }
            return convertPhraseQuery(context, phraseQuery, boost);
        }
        throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                "Unknown q: " + query.getClass() + " => " + query);
    }

    /**
     * Converts a phrase query to a query builder.
     *

                logger.debug("TermRangeQuery: query={}, boost={}", query, boost);
            }
            return convertTermRangeQuery(context, termRangeQuery, boost);
        }
        throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                "Unknown q: " + query.getClass() + " => " + query);
    }

    /**

                logger.debug("BooleanQuery: query={}, boost={}", query, boost);
            }
            return convertBooleanQuery(context, booleanQuery, boost);
        }
        throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                "Unknown q: " + query.getClass() + " => " + query);
    }

    /**

    public String ldapMemberofAttribute;

    /**
     * Notification message displayed on the login page.
     * This message is shown to users on the authentication page.
     */
    @Size(max = 3000)
    public String notificationLogin;

    /**
     * Notification message displayed on the search top page.
     * This message is shown to users on the main search page.
     */
    @Size(max = 3000)

                logger.debug("PrefixQuery: query={}, boost={}", query, boost);
            }
            return convertPrefixQuery(context, prefixQuery, boost);
        }
        throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                "Unknown q: " + query.getClass() + " => " + query);
    }

    /**
     * Converts a prefix query to a query builder.
     *

                logger.debug("FuzzyQuery: query={}, boost={}", query, boost);
            }
            return convertFuzzyQuery(context, fuzzyQuery, boost);
        }
        throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                "Unknown q: " + query.getClass() + " => " + query);
    }

    /**

src/main/resources/
├── fess_config.properties     # Main config
├── app.xml                    # DI configuration
├── fess_label_*.properties    # UI labels (i18n)
├── fess_message_*.properties  # Validation messages (i18n)
└── fess_indices/              # OpenSearch index mappings

src/main/webapp/WEB-INF/view/  # JSP templates
```

## DBFlute Code Generation