6709453: (dav)Screen flickers when a JFrame switches to fullscreen mode

Reviewed-by: art, dcherepanov

src/windows/classes/sun/awt/Win32GraphicsDevice.java

@@ -30,6 +30,7 @@ import java.awt.GraphicsDevice;
 import java.awt.GraphicsConfiguration;
 import java.awt.GraphicsEnvironment;
 import java.awt.DisplayMode;
+import java.awt.EventQueue;
 import java.awt.Frame;
 import java.awt.Rectangle;
 import java.awt.Window;
@@ -610,12 +611,19 @@ public class Win32GraphicsDevice extends GraphicsDevice implements
      *
      * @param w full-screen window
      */
-    protected void addFSWindowListener(Window w) {
+    protected void addFSWindowListener(final Window w) {
         // Note: even though we create a listener for Window instances of
         // fs windows they will not receive window events.
         fsWindowListener = new Win32FSWindowAdapter(this);
+
+        // Fix for 6709453. Using invokeLater to avoid listening
+        // for the events already posted to the queue.
+        EventQueue.invokeLater(new Runnable() {
+            public void run() {
                 w.addWindowListener(fsWindowListener);
             }
+        });
+    }
 
     /**
      * Removes the fs window listener.