fetchAll for type Organization error

Simple find all for type method that seems to be working on 5.5:

var allOrgs = Server.findAllForType("vCloud:Organization");

for each (var Org in allOrgs) {

  System.log(Org.name);

};

But on 7.1 it produces:

Server error : ch.dunes.model.sdk.SDKFinderException: Unable to execute 'fetchAll' for type : Organization : 'java.lang.NullPointerException'

Any clues?