code: @Deprecated
      public InputStream getInputStream(String bucketName, String key)
              throws AmazonServiceException, AmazonClientException, InterruptedException, IOException{
          return readUtils.getInputStream(bucketName, key);
      }
docs: Method returns InputStream from S3Object. Multi-part download is used to
  get file. s3.tmp.dir property used to store temporary files.
  
  @param bucketName
  @param key
  @return
  @throws AmazonServiceException
  @throws AmazonClientException
  @throws InterruptedException
  @throws IOException
  
  @deprecated see ReadUtils