gistfile1.txt

        $em = $e->getApplication()->getServiceManager()->get('doctrine.entity_manager.orm_default');
        $filter = new CamelCaseToUnderscore();
        $entities = array(
            'ZF\OAuth2\Doctrine\Entity\AccessToken',
            'ZF\OAuth2\Doctrine\Entity\AuthorizationCode',
            'ZF\OAuth2\Doctrine\Entity\Client',
            'ZF\OAuth2\Doctrine\Entity\Jti',
            'ZF\OAuth2\Doctrine\Entity\Jwt',
            'ZF\OAuth2\Doctrine\Entity\PublicKey',
            'ZF\OAuth2\Doctrine\Entity\RefreshToken',
            'ZF\OAuth2\Doctrine\Entity\Scope',
        );

        foreach($entities as $entity) {
            $cm = $em->getClassMetadata($entity);
            $name = explode('\\', $entity);
            $name = array_pop($name);
            $cm->setTableName(sprintf('oauth2_%s', strtolower($filter->filter($name))));
        }