Overwrite upload

When you call uploadSessionFinish (to get your UploadSessionFinishUploader), you supply a CommitInfo instance as the commit parameter. That CommitInfo instance should have a mode (a WriteMode) which determines how the file is written. The equivalent to API v1's "parentRev" is to use the update mode where the value is the rev of the parent.

So, that would look something like this:

WriteMode mode = WriteMode.update(parentRev);
CommitInfo commit = CommitInfo.newBuilder(dropboxFilePath).withMode(mode).build();

client.files().uploadSessionFinish(cursor, commit).uploadAndFinish(in);