andrea-patricelli commented on code in PR #1256:
URL: https://github.com/apache/syncope/pull/1256#discussion_r2592925191


##########
core/persistence-jpa/src/main/java/org/apache/syncope/core/persistence/jpa/entity/user/JPAUser.java:
##########
@@ -334,8 +334,7 @@ public void addToPasswordHistory(final String password) {
     @Override
     public void removeOldestEntriesFromPasswordHistory(final int n) {
         List<String> ph = getPasswordHistory();
-        ph.subList(n, ph.size());
-        passwordHistory = POJOHelper.serialize(ph);
+        passwordHistory = POJOHelper.serialize(new 
ArrayList<>(ph.subList(Math.min(n, ph.size()), ph.size())));

Review Comment:
   not necessarily, only to guarantee to serialize a clean list, but could be 
removed.



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