in case there are more files than the S3 api likes to give you in one go...

this will make sure you get them all.
You could save a line of code:
```
do{
            summaries.addAll(objectListing.getObjectSummaries());
            objectListing = s3.listNextBatchOfObjects(objectListing);
        } while(!objectListing.getObjectSummaries().isEmpty());
```
but maybe this is less clear because it doesn't call `isTruncated()` anymore...and also I didn't try it.  :smirk: