title: How to mock AWS SDK2 (S3) in Java
body: <p>So I want to mock AWS SDK 2.x (only S3 service), so that test upload and download files to a bucket without a real AWS. I'm looking for a Java implementations.</p>
  
  <p>I found a lot what implements (Adobe S3Mock ...etc), but all of them uses AWS SDK 1.x.</p>