--- a/src/java.desktop/share/classes/java/awt/FileDialog.java	Tue Sep 24 22:57:28 2019 +0100
+++ b/src/java.desktop/share/classes/java/awt/FileDialog.java	Tue Sep 24 18:25:54 2019 -0700
@@ -125,6 +125,7 @@
      * @see #setFilenameFilter()
      * @see FileNameFilter
      */
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     FilenameFilter filter;
 
     private static final String base = "filedlg";