The AWS Java SDK Version 1.8.10 comes with a critical bug, affecting uploads. A fix was provided by AWS and normally the SDK is updated automatically, so you don’t need to worry.
However, if automatic updates are disabled in your Eclipse Version, you might loose data when uploading via the SDK Version 1.8.10. Here is what AWS has to say about the bug:
The bug itself is repaired, in case you didn’t update the AWS SDK and are on the SDK Version 1.8.10 you should update that. Normally, the AWS SDK updates itself automatically in Eclipse.