This method sends an HTTP redirect to the SSO login URL. If for some reason the redirect can not be generated/sent, this method will throw an InterpreterException.
null, indicating the login challenge redirect has been sent internally.
IAuthenticator.GetOrSendLoginChallenge
SSOAuthenticator Class | com.plumtree.uiinfrastructure.login Namespace | IAuthenticator#GetOrSendLoginChallenge