/**
  * Process the license tag.
  *
  * @param int $errorPos The line number where the error occurs.
  *
  * @return void
  */
 protected function processLicense($errorPos)
 {
     /** @var PHP_CodeSniffer_CommentParser_PairElement $license  */
     $license = $this->commentParser->getLicense();
     if (!is_null($license)) {
         $value = $license->getValue();
         $comment = $license->getComment();
         if ($value === '' || $comment === '') {
             $error = '@license tag must contain a URL and a license name';
             $this->currentFile->addError($error, $errorPos, 'EmptyLicense');
         }
     }
 }