vCO AD Plugin and user attributes

Hi @ all.

I am trying to get user attributes within a orchastrator workflow from AD. But it seems, that the attributes are not read by the plugin, or do I have an error in the script?

Thanks in advance.

The Script:

System.log("========== All Attributes ===========");

var attribs = User.allAttributes;

for each (attrib in attribs){

    System.log("attribute: "+attrib.name+ "("+User.getAttribute(attrib.name)+")");

}

System.log("========== End of Task ===========");

The Log:

[2014-03-10 13:32:56.233] [I] ========== All Attributes ===========

[2014-03-10 13:32:56.234] [I] ========== End of Task ===========