protected function createUser( UserResponseInterface $response )
    {
        $user = $this->userManager->createUser();
        $user->setUsername( $this->createUniqueUsername( $this->getRealName( $response )));
        $user->setEmail( $this->getEmail( $response ) );
        $user->setPassword( '' );
        $user->setEnabled( true );
        $this->userManager->updateUser( $user );
        $this->createIdentity( $user, $response );
        return $user;
    }