How to use the md5 option in FDT?

[patder]

Hi, I have an issue concerning the mechanics of the -md5 option.
What I want to do is transfer the content of a directory with the recursive mode -r. To ensure the integrity of the files I want to use the -md5 option.
The problem is that I can't figure out yet how to make it work. If I set the option on client-side, the only difference I noticed is the additional console-output of a list like this (something mapped to the UUIDs):

INFORMATION lia.util.net.copy.transport.ControlChannel sendMsgImpl [ ControlChannel ] sending message tag ( 10 ): END_SESSION msg: {3069d1ce-73a0-494a-b16c-523a7ab34bfc=[B@30248537, ...}

On the server-side I don't see any difference and I cant't find a way to validate or access the md5 checksums (if they were transferred on some way).

Console call of client-side:
java -jar fdt.jar -md5 -r -c myServer -p myPort /data/source_dir/ -d /data/dest_dir