src/java.desktop/share/classes/sun/awt/EmbeddedFrame.java

@@ -54,10 +54,11 @@
 public abstract class EmbeddedFrame extends Frame
                           implements KeyEventDispatcher, PropertyChangeListener {
 
     private boolean isCursorAllowed = true;
     private boolean supportsXEmbed = false;
+    @SuppressWarnings("serial") // Not statically typed as Serializable
     private KeyboardFocusManager appletKFM;
     // JDK 1.1 compatibility
     private static final long serialVersionUID = 2967042741780317130L;
 
     /*