--- old/src/windows/classes/sun/awt/windows/WFontMetrics.java	2014-03-10 22:38:01.000000000 -0700
+++ new/src/windows/classes/sun/awt/windows/WFontMetrics.java	2014-03-10 22:38:01.000000000 -0700
@@ -33,6 +33,7 @@
  *
  * @author Jim Graham
  */
+@SuppressWarnings("serial") // JDK-implementation class
 final class WFontMetrics extends FontMetrics {
 
     static {