--- old/src/macosx/classes/sun/lwawt/LWToolkit.java	2012-06-25 03:33:42.723966630 -0700
+++ new/src/macosx/classes/sun/lwawt/LWToolkit.java	2012-06-25 03:33:42.539966625 -0700
@@ -522,12 +522,6 @@
         postEvent(targetToAppContext(event.getSource()), event);
     }
 
-    // use peer's back buffer to implement non-opaque windows.
-    @Override
-    public boolean needUpdateWindow() {
-        return true;
-    }
-
     @Override
     public void grab(Window w) {
         if (w.getPeer() != null) {