| @@ -164,7 +164,7 @@ | ||
| 164 | 164 | /** | 
| 165 | 165 | * Check if certificate is valid | 
| 166 | 166 | * @param Certificate $certificate | 
| 167 | - * @return mixed | |
| 167 | + * @return null|Certificate | |
| 168 | 168 | * @throws RuntimeException | 
| 169 | 169 | */ | 
| 170 | 170 | private function checkCertValidity(Certificate $certificate = null) |