src/macosx/classes/sun/lwawt/macosx/CEmbeddedFrame.java

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@@ -117,10 +117,21 @@
         if (parentWindowActive) {
             responder.handleWindowFocusEvent(focused, null);
         }
     }
 
+    /**
+     * When the window is activated and had focus before the deactivation
+     * calling this method triggers focus events in the following order:
+     *  1. WINDOW_ACTIVATED for this EmbeddedFrame
+     *  2. WINDOW_GAINED_FOCUS for this EmbeddedFrame
+     *  3. FOCUS_GAINED for the most recent focus owner in this EmbeddedFrame
+     *
+     * The caller must not requestFocus on the EmbeddedFrame together with calling this method.
+     *
+     * @param parentWindowActive true if the window is activated, false otherwise
+     */
     public void handleWindowFocusEvent(boolean parentWindowActive) {
         this.parentWindowActive = parentWindowActive;
         // ignore focus "lost" native request as it may mistakenly
         // deactivate active window (see 8001161)
         if (focused && parentWindowActive) {