Yes, but I don't ask about the ZAP web interface but the Webswing administration web interface. There is a login at e.g.
http://localhost:8080/login or
http://localhost:8080/adminConsoleLogin.html, but you can't log in with the default Webswing admin password, which is admin:pwd like mentioned in the documentation.
So it seems like the default password of that Webswing instance has been changed, and I would like to know which credentials are valid. Or is the Webswing administration disabled completely?