--- old/src/java.desktop/share/classes/sun/awt/AWTAccessor.java	2016-11-29 11:58:41.000000000 +0300
+++ new/src/java.desktop/share/classes/sun/awt/AWTAccessor.java	2016-11-29 11:58:41.000000000 +0300
@@ -360,6 +360,12 @@
          * Marks the specified window as an utility window for TrayIcon.
          */
         void setTrayIconWindow(Window w, boolean isTrayIconWindow);
+
+        /**
+         * Return an array containing all the windows this
+         * window currently owns.
+         */
+        Window[] getOwnedWindows(Window w);
     }
 
     /**