@Override
    public final void clean() {
        LOGGER.debug("Starting to clean expiring and previously used google authenticator tokens");
        ApplicationContextProvider.processBeanInjections(this);
        cleanInternal();
        LOGGER.debug("Finished cleaning google authenticator tokens");
    }
This is {@link BaseOneTimeTokenRepository}.

@author Misagh Moayyed
@since 5.0.0
support/cas-server-support-otp-mfa-core/src/main/java/org/apereo/cas/otp/repository/token/BaseOneTimeTokenRepository.java