for (Iterator j = DataLoaderHelper.getPrimaryKeys(cld).values().iterator();
for (Iterator j = getPrimaryKeys(cld).values().iterator();
    public static Set getPrimaryKeyFields(Model model, Class c) {                Set pkFields = new HashSet();        for (Iterator i = model.getClassDescriptorsForClass(c).iterator(); i.hasNext();) {            ClassDescriptor cld = (ClassDescriptor) i.next();            for (Iterator j = DataLoaderHelper.getPrimaryKeys(cld).values().iterator();                 j.hasNext();) {                PrimaryKey pk = (PrimaryKey) j.next();                for (Iterator k = pk.getFieldNames().iterator(); k.hasNext();) {                    String fieldName = (String) k.next();                    pkFields.add(cld.getFieldDescriptorByName(fieldName));                }            }        }        return pkFields;    }