--- old/src/java.base/share/classes/java/lang/Double.java	2019-08-27 17:27:08.550324386 -0700
+++ new/src/java.base/share/classes/java/lang/Double.java	2019-08-27 17:27:08.266324386 -0700
@@ -1102,5 +1102,6 @@
     }
 
     /** use serialVersionUID from JDK 1.0.2 for interoperability */
+    @java.io.Serial
     private static final long serialVersionUID = -9172774392245257468L;
 }