--- old/src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java	2015-09-22 00:06:17.406197900 -0700
+++ new/src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java	2015-09-22 00:06:17.140557500 -0700
@@ -1156,7 +1156,9 @@
             && !(dst instanceof NullSurfaceData)
             && !(src instanceof NullSurfaceData)
             && src.getSurfaceType().equals(dst.getSurfaceType())
-            && src.getDefaultScale() == dst.getDefaultScale()) {
+            && src.getDefaultScaleX() == dst.getDefaultScaleX()
+            && src.getDefaultScaleY() == dst.getDefaultScaleY())
+        {
             final Rectangle size = src.getBounds();
             final Blit blit = Blit.locate(src.getSurfaceType(),
                                           CompositeType.Src,