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

*** 194,203 ****
--- 194,204 ----
          Entry(int hash, K key, V value, Node<K,V> next) {
              super(hash, key, value, next);
          }
      }
  
+     @java.io.Serial
      private static final long serialVersionUID = 3801124242820219131L;
  
      /**
       * The head (eldest) of the doubly linked list.
       */