Как отсортировать List<Object> в Map<String, Object> в Java?

У меня есть две карты, Map<String,Object> которые выглядят так:

Map<String, Object> map1 = {
    taxRate = {rateType=EXCLUSIVE, rate=0.07}, 
    taxAmount = {currencyCode=USD, amount=7.0},
    jurisdictionTaxes=[{jurisdictionLevel=State, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}, {jurisdictionLevel=County, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}, {jurisdictionLevel=City, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}, {jurisdictionLevel=District, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}],
    withholdingJurisdictionTaxes=[]
}

Map<String, Object> map2 = {
    taxRate = {rateType=EXCLUSIVE, rate=0.07}, 
    taxAmount = {currencyCode=USD, amount=7.0},
    jurisdictionTaxes=[{jurisdictionLevel=State, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}, {jurisdictionLevel=County, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}, {jurisdictionLevel=City, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}, {jurisdictionLevel=District, taxAmount = {currencyCode=USD, amount=null}, taxRate = {rateType=EXCLUSIVE, rate=null}, displayName=, jurisdictionName=, responsiblePartyReason=}],
    withholdingJurisdictionTaxes=[]
}

Я сравниваю эти две карты, используя

  Map<String, Object> flatMap1 = FlatMapUtil.flatten(map1);
  Map<String, Object> flatMap2 = FlatMapUtil.flatten(map2);
  MapDifference<String, Object> difference = Maps.difference(flatMap1, flatMap2);

Однако, если вы посмотрите на второе значение ключа на карте, это список объектов. Порядок имеет значение при расчете разницы. Поэтому мне нужно отсортировать этот конкретный список, прежде чем найти Map.difference.

Можете ли вы помочь мне понять, как я могу отсортировать этот список?

Я пробовал следующее:

1. Collections.sort(Arrays.asList(leftMap.get("jurisdictionTaxes")));

Error: Required type: List <T>
Provided: List <Object>

2. Arrays.asList(leftMap.get("jurisdictionTaxes")).sort((s1, s2) -> s1.get("jurisdictionLevel") - s2.get("jurisdictionLevel"));

Error: Cannot resolve method 'get' in 'Object'

 public static <K, V> MapDifference<K, V> difference(Map<? extends K, ? extends V> left, Map<? extends K, ? extends V> right) {
        if (left instanceof SortedMap) {
            SortedMap<K, ? extends V> sortedLeft = (SortedMap)left;
            return difference(sortedLeft, right);
        } else {
            return difference(left, right, Equivalence.equals());
        }
    }