@Override
    public String normalizeUserCode(final String providedCode) {
        return StringUtils.prependIfMissingIgnoreCase(providedCode, OAuth20DeviceUserCode.PREFIX + '-');
    }
Default OAuth device token factory.

@author Misagh Moayyed
@since 6.0.0
support/cas-server-support-oauth-core-api/src/main/java/org/apereo/cas/ticket/device/OAuth20DefaultDeviceUserCodeFactory.java