modules/graphics/src/test/java/test/com/sun/javafx/pgstub/StubToolkit.java

@@ -634,11 +634,12 @@
         return new PathElement[0];
     }
 
     @Override
     public Filterable toFilterable(Image img) {
-        return StubFilterable.create((StubPlatformImage)img.impl_getPlatformImage());
+        return StubFilterable.create((StubPlatformImage)
+                Toolkit.getImageAccessor().getPlatformImage(img));
     }
 
     @Override
     public FilterContext getFilterContext(Object config) {
         throw new UnsupportedOperationException();