@Override
    public boolean isLoginFormUsernameInputDisabled(final RequestContext requestContext) {
        return PasswordlessWebflowUtils.getPasswordlessAuthenticationAccount(requestContext, Serializable.class) != null;
    }
This is {@link PasswordlessCasWebflowLoginContextProvider}.

@author Misagh Moayyed
@since 6.4.0
support/cas-server-support-passwordless-webflow/src/main/java/org/apereo/cas/web/flow/PasswordlessCasWebflowLoginContextProvider.java