--- a/src/java.base/share/classes/sun/security/x509/AlgorithmId.java	Thu Aug 29 10:09:27 2019 -0700
+++ b/src/java.base/share/classes/sun/security/x509/AlgorithmId.java	Thu Aug 29 10:52:21 2019 -0700
@@ -63,6 +63,7 @@
 public class AlgorithmId implements Serializable, DerEncoder {
 
     /** use serialVersionUID from JDK 1.1. for interoperability */
+    @java.io.Serial
     private static final long serialVersionUID = 7205873507486557157L;
 
     /**