Simplification

@@ -56,7 +56,7 @@ public class AccountServiceDefault implements AccountService {
         List<Integer> integers = new ArrayList<>(indexedAccounts.size());
         indexedAccounts.forEach(indexedAccount -> integers.add(indexedAccount.getUserId()));
 
-        if (integers.size() > 0) {
+        if (!integers.isEmpty()) {
             return accountRepository.findByUserIdIn(integers);
         }
 

@@ -146,7 +146,7 @@ public class PublisherServiceDefault implements PublisherService {
             List<Integer> integers = new ArrayList<>(indexedPublishers.size());
             indexedPublishers.forEach(indexedPublisher -> integers.add(indexedPublisher.getPublisherId()));
 
-        if (integers.size() > 0) {
+        if (!integers.isEmpty()) {
             return publisherVersionRepository.findByPublisherVersionIdIn(integers);
         }