--- old/src/java.base/share/classes/java/util/LinkedHashMap.java	2019-08-27 17:29:05.438324386 -0700
+++ new/src/java.base/share/classes/java/util/LinkedHashMap.java	2019-08-27 17:29:05.266324386 -0700
@@ -196,6 +196,7 @@
         }
     }
 
+    @java.io.Serial
     private static final long serialVersionUID = 3801124242820219131L;
 
     /**