--- old/modules/javafx.web/src/main/java/com/sun/webkit/UIClient.java	2017-10-17 14:01:57.279785424 +0530
+++ new/modules/javafx.web/src/main/java/com/sun/webkit/UIClient.java	2017-10-17 14:01:56.567429424 +0530
@@ -51,7 +51,7 @@
             int imageOffsetX, int imageOffsetY,
             int eventPosX, int eventPosY,
             String[] mimeTypes, Object[] values,
-            boolean isImageSource);
+            boolean isImageSource, String imageFileExt);
     public void confirmStartDrag();
     public boolean isDragConfirmed();
 }