There is no 'getTheLatestVersion' method. Instead, the 'allVersionsOf'
returns an ordered list with the latest version
on top of the list. We are using this to get all versions. Then add
only unique documents to an ObjectVector. Which we later
return as a QueryResult.
QueryResult allVersions =
VersionControlHelper.service.allVersionsOf(doc);
if (allVersions.size() > 0) {
EPMDocument doc2 = (EPMDocument) allVersions.nextElement();
}