--- a/jdk/src/share/classes/java/awt/PopupMenu.java	Wed Jul 05 18:09:43 2017 +0200
+++ b/jdk/src/share/classes/java/awt/PopupMenu.java	Thu Jun 07 18:05:09 2012 -0700
@@ -28,6 +28,8 @@
 import java.awt.peer.PopupMenuPeer;
 import javax.accessibility.*;
 
+import javax.tools.annotation.GenerateNativeHeader;
+
 import sun.awt.AWTAccessor;
 
 /**
@@ -42,6 +44,8 @@
  *
  * @author      Amy Fowler
  */
+/* No native methods here, but the constants are needed in the supporting JNI code */
+@GenerateNativeHeader
 public class PopupMenu extends Menu {
 
     private static final String base = "popup";