Introduction to Amazon S3 with Java and REST
Subject:   Another Java API for S3 (works with other providers too)
Date:   2009-09-02 11:15:30
From:   cloudloop
You may also want to checkout cloudloop, an open-source Java API for cloud storage that works with S3 and other major providers. A few of its nice points include:

* You can switch between providers without making code changes.

* Provides a file-system-like interface, complete with folders (rather than key-value system used by S3).

* Strong encryption out of the box.

It's a really nice, easy interface to use with a small but fast growing community of users.