* including thread pool management and session-based crawling coordination.
     */
    public DataIndexHelper() {
        // Default constructor with explicit documentation
    }

    /**
     * Initiates crawling for all configured data stores.
     * This method retrieves all available data configurations and
     * starts the crawling process for each one.
     *

    /**
     * Synchronized list of active crawlers.
     */
    protected final List<Crawler> crawlerList = Collections.synchronizedList(new ArrayList<>());

    /**
     * Initiates crawling for specified web and file configurations.
     *
     * @param sessionId The session ID for this crawling operation
     * @param webConfigIdList List of web configuration IDs to crawl, null for all

labels.employeeType=Mitarbeitertyp
labels.user_facsimileTelephoneNumber=Faxnummer
labels.facsimileTelephoneNumber=Faxnummer
labels.user_postOfficeBox=Postfach
labels.postOfficeBox=Postfach
labels.user_initials=Initialen
labels.initials=Initialen
labels.user_carLicense=Führerschein
labels.carLicense=Führerschein
labels.user_mobile=Mobiltelefon
labels.mobile=Mobiltelefon
labels.user_postalAddress=Postanschrift

labels.user_facsimileTelephoneNumber=Numéro de télécopieur
labels.facsimileTelephoneNumber=Numéro de télécopieur
labels.user_postOfficeBox=Boîte postale
labels.postOfficeBox=Boîte postale
labels.user_initials=Initiales
labels.initials=Initiales
labels.user_carLicense=Permis de conduire
labels.carLicense=Permis de conduire
labels.user_mobile=Mobile
labels.mobile=Mobile
labels.user_postalAddress=Adresse postale

labels.employeeType=Werknemerstype
labels.user_facsimileTelephoneNumber=Faxnummer
labels.facsimileTelephoneNumber=Faxnummer
labels.user_postOfficeBox=Postbus
labels.postOfficeBox=Postbus
labels.user_initials=Initialen
labels.initials=Initialen
labels.user_carLicense=Rijbewijs
labels.carLicense=Rijbewijs
labels.user_mobile=Mobiel
labels.mobile=Mobiel
labels.user_postalAddress=Postadres
labels.postalAddress=Postadres

labels.user_facsimileTelephoneNumber=Número de fax
labels.facsimileTelephoneNumber=Número de fax
labels.user_postOfficeBox=Apartado de correos
labels.postOfficeBox=Apartado de correos
labels.user_initials=Iniciales
labels.initials=Iniciales
labels.user_carLicense=Licencia de conducir
labels.carLicense=Licencia de conducir
labels.user_mobile=Teléfono móvil
labels.mobile=Teléfono móvil
labels.user_postalAddress=Dirección postal

En ese punto, al notar que el servidor tardó algunos microsegundos más en enviar el response "Nombre de usuario o contraseña incorrectos", los atacantes sabrán que acertaron en _algo_, algunas de las letras iniciales eran correctas.

Y luego pueden intentar de nuevo sabiendo que probablemente es algo más similar a `stanleyjobsox` que a `johndoe`.

#### Un ataque "profesional" { #a-professional-attack }

labels.user_facsimileTelephoneNumber=Facsimile Telephone Number
labels.facsimileTelephoneNumber=Facsimile Telephone Number
labels.user_postOfficeBox=Post Office Box
labels.postOfficeBox=Post Office Box
labels.user_initials=Initials
labels.initials=Initials
labels.user_carLicense=Car License
labels.carLicense=Car License
labels.user_mobile=Mobile
labels.mobile=Mobile
labels.user_postalAddress=Postal Address
labels.postalAddress=Postal Address

labels.user_facsimileTelephoneNumber=Facsimile Telephone Number
labels.facsimileTelephoneNumber=Facsimile Telephone Number
labels.user_postOfficeBox=Post Office Box
labels.postOfficeBox=Post Office Box
labels.user_initials=Initials
labels.initials=Initials
labels.user_carLicense=Car License
labels.carLicense=Car License
labels.user_mobile=Mobile
labels.mobile=Mobile
labels.user_postalAddress=Postal Address
labels.postalAddress=Postal Address

ldap.attr.facsimileTelephoneNumber=facsimileTelephoneNumber
# LDAP attribute for post office box.
ldap.attr.postOfficeBox=postOfficeBox
# LDAP attribute for initials.
ldap.attr.initials=initials
# LDAP attribute for car license.
ldap.attr.carLicense=carLicense
# LDAP attribute for mobile.
ldap.attr.mobile=mobile
# LDAP attribute for postal address.