--- /dev/null	2018-05-05 20:43:49.000000000 +0530
+++ new/src/jdk.unsupported.desktop/share/classes/jdk/swing/interop/SwingInterOpUtils.java	2018-05-05 20:43:48.041574900 +0530
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.swing.interop;
+
+import java.awt.Graphics;
+import java.awt.Component;
+import java.awt.Container;
+import java.awt.Toolkit;
+import java.awt.Window;
+import java.awt.AWTEvent;
+import java.awt.EventQueue;
+import java.awt.image.BufferedImage;
+import sun.awt.SunToolkit;
+import sun.awt.AppContext;
+import sun.awt.AWTAccessor;
+import sun.awt.UngrabEvent;
+import sun.awt.image.IntegerComponentRaster;
+import sun.java2d.SunGraphics2D;
+import sun.java2d.SurfaceData;
+
+/**
+ * This class provides static utility methods to be used by FX swing interop 
+ * to access and use jdk internal classes like SunToolkit, AppContext, AWTAccessor, 
+ * UngrabEvent, IntegerComponentRaster, SunGraphics2D and SurfaceData.
+ */
+public class SwingInterOpUtils {
+    public static double getDefaultScaleX(Graphics g) {
+        if (g instanceof SunGraphics2D) {
+            SurfaceData sd = ((SunGraphics2D) g).surfaceData;
+            return sd.getDefaultScaleX();
+        }
+        return 1.0;
+    }
+
+    public static double getDefaultScaleY(Graphics g) {
+        if (g instanceof SunGraphics2D) {
+            SurfaceData sd = ((SunGraphics2D) g).surfaceData;
+            return sd.getDefaultScaleY();
+        }
+        return 1.0;
+    }
+
+     public static int[] getData(BufferedImage bimg) {
+        IntegerComponentRaster icr =
+                        (IntegerComponentRaster) bimg.getRaster();
+        int data[] = icr.getDataStorage();
+        return data;
+    }
+
+    public static int getOffset(BufferedImage bimg) {
+        IntegerComponentRaster icr =
+                (IntegerComponentRaster) bimg.getRaster();
+        int offset = icr.getDataOffset(0);
+        return offset;
+    }
+
+    public static int getScanlineStride(BufferedImage bimg) {
+        IntegerComponentRaster icr =
+                (IntegerComponentRaster) bimg.getRaster();
+        int scan = icr.getScanlineStride();
+        return scan;
+    }
+
+    public static void postEvent(Object target, java.awt.AWTEvent e) {
+        AppContext context = SunToolkit.targetToAppContext(target);
+        if (context != null) {
+            SunToolkit.postEvent(context, e);
+        }
+    }
+
+    public static void grab(Toolkit toolkit, Window window) {
+        if (toolkit instanceof SunToolkit) {
+	    ((SunToolkit)toolkit).grab(window);
+	}
+    }
+
+    public static void ungrab(Toolkit toolkit, Window window) {
+        if (toolkit instanceof SunToolkit) {
+	    ((SunToolkit)toolkit).ungrab(window);
+	}
+    }
+
+    public static boolean isUngrabEvent(AWTEvent e) {
+        return e instanceof UngrabEvent;
+    }
+
+    public static final int GRAB_EVENT_MASK = SunToolkit.GRAB_EVENT_MASK;
+
+}