--- old/src/java.desktop/share/classes/java/awt/SequencedEvent.java	2019-09-21 12:30:17.603000000 -0700
+++ new/src/java.desktop/share/classes/java/awt/SequencedEvent.java	2019-09-21 12:30:17.395000000 -0700
@@ -55,11 +55,13 @@
     private static final LinkedList<SequencedEvent> list = new LinkedList<>();
 
     private final AWTEvent nested;
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     private AppContext appContext;
     private boolean disposed;
     private final LinkedList<AWTEvent> pendingEvents = new LinkedList<>();
 
     private static boolean fxAppThreadIsDispatchThread;
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     private Thread fxCheckSequenceThread;
     static {
         AWTAccessor.setSequencedEventAccessor(new AWTAccessor.SequencedEventAccessor() {