/**
* {@inheritDoc}
*
* @throws \InvalidArgumentException When class name is not a string
*/
public function getRepository($className)
{
if (!is_string($className)) {
throw new \InvalidArgumentException(sprintf('Class name must be a string, "%s" given.', is_object($className) ? 'Object ' . get_class($className) : gettype($className)));
}
return parent::getRepository($className);
}
