Upload Strategy for large files on spotty/slow connection
<p>I'm having trouble researching strategies for uploading/downloading large files on a slow/spotty connection, where transfers are prone to fail.  We'd like to be able to resume an upload/download if and when it fails.</p>

<p>Can anyone point me to any existing strategies?  We are using Java--if there are any existing open source libraries in place, that would be a huge help.</p>