--- old/src/java.sql.rowset/share/classes/javax/sql/rowset/serial/SerialBlob.java	2019-09-24 21:28:20.009092072 -0700
+++ new/src/java.sql.rowset/share/classes/javax/sql/rowset/serial/SerialBlob.java	2019-09-24 21:28:19.821092072 -0700
@@ -73,6 +73,7 @@
      * The internal representation of the <code>Blob</code> object on which this
      * <code>SerialBlob</code> object is based.
      */
+    @SuppressWarnings("serial") // Not statically typed as Serializable; checked in writeObject
     private Blob blob;
 
     /**