--- old/src/share/classes/java/awt/Toolkit.java	2013-08-28 21:58:52.632764300 +0400
+++ new/src/share/classes/java/awt/Toolkit.java	2013-08-28 21:58:52.118734900 +0400
@@ -1239,7 +1239,13 @@
     }
 
     /**
-     * Emits an audio beep.
+     * Emits an audio beep using the corresponding system function:
+     * <ul>
+     * <li>on Windows it's <code>MessageBeep(MB_OK)</code></li>
+     * <li>on Mac OS X - <code>NSBeep()</code></li>
+     * <li>on Solaris and Linux - <code>XBell()</code></li>
+     * </ul>
+     * Thus, emitting depends on system settings and hardware capabilities.
      * @since     JDK1.1
      */
     public abstract void beep();