--- old/src/java.desktop/windows/classes/sun/awt/windows/TranslucentWindowPainter.java	2016-08-03 13:58:15.459073000 +0530
+++ new/src/java.desktop/windows/classes/sun/awt/windows/TranslucentWindowPainter.java	2016-08-03 13:58:15.254970999 +0530
@@ -30,6 +30,7 @@
 import java.awt.GraphicsConfiguration;
 import java.awt.Image;
 import java.awt.Window;
+import java.awt.geom.AffineTransform;
 import java.awt.image.BufferedImage;
 import java.awt.image.DataBufferInt;
 import java.awt.image.VolatileImage;
@@ -45,6 +46,7 @@
 import sun.security.action.GetPropertyAction;
 
 import static java.awt.image.VolatileImage.*;
+import sun.java2d.pipe.Region;
 import static sun.java2d.pipe.hw.AccelSurface.*;
 import static sun.java2d.pipe.hw.ContextCapabilities.*;
 
@@ -252,10 +254,13 @@
 
         @Override
         protected Image getBackBuffer(boolean clear) {
-            int w = window.getWidth();
-            int h = window.getHeight();
+            
             GraphicsConfiguration gc = peer.getGraphicsConfiguration();
-
+         
+            AffineTransform tx = gc.getDefaultTransform();
+            int w = Region.clipScale(window.getWidth(), tx.getScaleX());
+            int h = Region.clipScale(window.getHeight(), tx.getScaleY());
+            
             if (viBB == null || viBB.getWidth() != w || viBB.getHeight() != h ||
                 viBB.validate(gc) == IMAGE_INCOMPATIBLE)
             {
--- old/test/javax/swing/JWindow/ShapedAndTranslucentWindows/TranslucentPerPixelTranslucentGradient.java	2016-08-03 13:58:15.983334999 +0530
+++ new/test/javax/swing/JWindow/ShapedAndTranslucentWindows/TranslucentPerPixelTranslucentGradient.java	2016-08-03 13:58:15.775231000 +0530
@@ -25,6 +25,7 @@
 
 /*
  * @test
+ * @bug 8144735
  * @key headful
  * @summary Check if a per-pixel translucent and translucent window is dragged
  *          and resized by mouse correctly