--- a/jdk/src/windows/classes/sun/java2d/d3d/D3DPaints.java	Wed Jul 05 18:09:43 2017 +0200
+++ b/jdk/src/windows/classes/sun/java2d/d3d/D3DPaints.java	Thu Jun 07 18:05:09 2012 -0700
@@ -33,6 +33,7 @@
 import java.awt.image.BufferedImage;
 import java.util.HashMap;
 import java.util.Map;
+import javax.tools.annotation.GenerateNativeHeader;
 import sun.java2d.SunGraphics2D;
 import sun.java2d.SurfaceData;
 import sun.java2d.loops.CompositeType;
@@ -157,6 +158,8 @@
 
 /****************** Shared MultipleGradientPaint support ********************/
 
+    /* No native methods here, but the constants are needed in the supporting JNI code */
+    @GenerateNativeHeader
     private static abstract class MultiGradient extends D3DPaints {
 
         /**