/**
     * Federate with OIDC
     */
    override fun federateWithOIDC(token: String, issuer: String) {
        Log.d(TAG, "Federating with $issuer")
        thread(start = true) {
            with(service.identityManager.underlyingProvider) {
                clear()
                withLogins(mapOf(issuer to token))
                refresh()
            }

            val user = User().apply {
                tokens[TokenType.ID_TOKEN] = token
                userAttributes["provider"] = issuer
            }
            Log.d(TAG, "Federated result: ${service.identityManager.isUserSignedIn}")
            runOnUiThread { mCurrentUser.postValue(user) }
        }
    }