code: public void downloadJobOutput(String accountId, String vaultName, String jobId, File file) {
          downloadJobOutput(accountId, vaultName, jobId, file, null);
      }
docs: Downloads the job output for the specified job (which must be ready to
  download already, and must be a complete archive retrieval, not a partial
  range retrieval), into the specified file. This method will request
  individual chunks of the data, one at a time, in order to handle any
  transient errors along the way.
  
  @param accountId
  The account ID containing the job output to download (or null
  if the current account should be used).
  @param vaultName
  The name of the vault from where the job was initiated.
  @param jobId
  The ID of the job whose output is to be downloaded. This job
  must be a complete archive retrieval, not a range retrieval.
  @param file
  The file to download the job output into.