TreeMap<Integer, FILTER> sortedMap = new TreeMap<>();
// add matching prefixes
for (Entry<String, Entry<FILTER, Integer>> prefixEntry : prefixMap.entrySet()) {
TreeMap<Integer, FILTER> sortedMap = new TreeMap<>();
// add matching prefixes
for (Entry<String, Entry<FILTER, Integer>> prefixEntry : prefixMap.entrySet()) {