final Iterator<HostReference> referenceIterator = references.entries();
final StringBuilder s = new StringBuilder(references.size() * 20); // pre-set of guessed size reduces expandCapacity() and increases performance
HostReference reference;
while (referenceIterator.hasNext()) {
reference = referenceIterator.next();
s.append(reference.toPropertyForm());
if (referenceIterator.hasNext()) s.append(",");
}
prop.put("list_" + count + "_references", s.toString());
prop.put("list_" + count + "_comma", 1);
count++;