AuthenticationController.withParameter() does not work.
Indeed it seems like we don’t have exactly this kind of instruction for setting it up from Java serverlet. I guess the closest to the stack that you use would be to try to utilise this repo somwehow:
Another way will be asking the repo maintainers about that via a GitHub issue or filing a feature request for that using our product feedback form:
If I got it right, it is better now to use what is called universal login, that is, call Auth0 site to get the Lock widget. This can be customized via web interface https://manage.auth0.com/dashboard/eu/dev-oq8ogj3g/login_settings which would solve the problem.
Yep you can go that way!