--- a/src/java.desktop/share/classes/javax/imageio/metadata/IIOInvalidTreeException.java	Tue Sep 24 22:57:28 2019 +0100
+++ b/src/java.desktop/share/classes/javax/imageio/metadata/IIOInvalidTreeException.java	Tue Sep 24 18:25:54 2019 -0700
@@ -50,6 +50,7 @@
      * The {@code Node} that led to the parsing error, or
      * {@code null}.
      */
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     protected Node offendingNode = null;
 
     /**