Add findDuplicates

apache · Sep 1, 2024 · c455e6a · c455e6a
1 parent 53f249d
commit c455e6a
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/src/main/java/org/apache/commons/collections4/ListUtils.java b/src/main/java/org/apache/commons/collections4/ListUtils.java
@@ -196,10 +196,8 @@ public static <E> List<E> findDuplicates(final List<E> list) {
         List<E> result = new ArrayList<>();
 
         for (E element : list) {
-            if (!seen.add(element)) {
-                if (duplicates.add(element)) {
-                    result.add(element);
-                }
+            if (!seen.add(element) && duplicates.add(element)) {
+                result.add(element);
             }
         }