src/java.base/share/classes/java/util/Collections.java

@@ -457,11 +457,11 @@
         int size = list.size();
         if (size < SHUFFLE_THRESHOLD || list instanceof RandomAccess) {
             for (int i=size; i>1; i--)
                 swap(list, i-1, rnd.nextInt(i));
         } else {
-            Object arr[] = list.toArray();
+            Object[] arr = list.toArray();
 
             // Shuffle array
             for (int i=size; i>1; i--)
                 swap(arr, i-1, rnd.nextInt(i));