code: public Map<String, String> getContentProperties(String spaceId,
                                                      String contentId) {
          log.debug("getContentProperties(" + spaceId + ", " + contentId + ")");
  
          // Will throw if bucket does not exist
          String bucketName = getBucketName(spaceId);
  
          // Get the content item from S3
          ObjectMetadata objMetadata =
              getObjectDetails(bucketName, contentId, RETRY);
  
          if (objMetadata == null) {
              String err = "No metadata is available for item " + contentId +
                           " in S3 bucket " + bucketName;
              throw new StorageException(err, NO_RETRY);
          }
  
          return prepContentProperties(objMetadata);
      }
docs: {@inheritDoc}