--- /dev/null	2018-07-09 16:35:25.000000000 +0530
+++ new/modules/javafx.swing/src/main/java/com/sun/javafx/embed/swing/FXDnDInterop.java	2018-07-09 16:35:24.276626600 +0530
@@ -0,0 +1,56 @@
+/*
+ * 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 com.sun.javafx.embed.swing; 
+
+import java.awt.Component;
+import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.DragGestureRecognizer;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DropTarget;
+import javafx.embed.swing.SwingNode;
+
+public abstract class FXDnDInterop {
+    public abstract Component findComponentAt(Object frame, int x, int y, 
+		                              boolean ignoreEnabled);
+
+    public abstract boolean isCompEqual(Component c, Object frame);
+
+    public abstract int convertModifiersToDropAction(int modifiers, 
+		                                     int supportedActions);
+
+    public abstract Object createDragSourceContext(DragGestureEvent dge);
+
+    public abstract <T extends DragGestureRecognizer> T 
+	    createDragGestureRecognizer(DragSource ds, Component c, int srcActions, 
+			    DragGestureListener dgl);
+
+    public abstract void addDropTarget(DropTarget dt, SwingNode node);
+
+    public abstract void removeDropTarget(DropTarget dt, SwingNode node);
+
+    public abstract void setNode(SwingNode node);
+}