diff -r 270abce77942 -r faf791c5a710 src/java.sql.rowset/share/classes/javax/sql/rowset/serial/SerialBlob.java
--- a/src/java.sql.rowset/share/classes/javax/sql/rowset/serial/SerialBlob.java	Wed Sep 25 08:29:03 2019 -0700
+++ b/src/java.sql.rowset/share/classes/javax/sql/rowset/serial/SerialBlob.java	Wed Sep 25 09:37:18 2019 -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;
 
     /**