src/share/classes/com/sun/java/swing/plaf/windows/WindowsTextUI.java

@@ -60,10 +60,11 @@
 
     /* public */
     static LayeredHighlighter.LayerPainter WindowsPainter = new WindowsHighlightPainter(null);
 
     /* public */
+    @SuppressWarnings("serial") // Superclass is not serializable across versions
     static class WindowsCaret extends DefaultCaret
                      implements UIResource {
         /**
          * Gets the painter for the Highlighter.
          *