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

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -24,17 +24,17 @@
  */
 
 
 package sun.lwawt;
 
-import java.awt.Choice;
-import java.awt.Point;
+import java.awt.*;
 import java.awt.event.ItemEvent;
 import java.awt.event.ItemListener;
 import java.awt.peer.ChoicePeer;
 
-import javax.swing.JComboBox;
+import javax.accessibility.Accessible;
+import javax.swing.*;
 
 final class LWChoicePeer extends LWComponentPeer<Choice, JComboBox<String>>
         implements ChoicePeer, ItemListener {
 
     /**

@@ -157,7 +157,34 @@
             if (oldSelection != null && oldSelection.equals(anObject)) {
                 selectedItemChanged();
             }
             super.setSelectedItem(anObject);
         }
+
+        @Override
+        public void firePopupMenuWillBecomeVisible() {
+            super.firePopupMenuWillBecomeVisible();
+            SwingUtilities.invokeLater(new Runnable() {
+                @Override
+                public void run() {
+                    JPopupMenu popupMenu = getPopupMenu();
+                    if (popupMenu != null) {
+                        if (popupMenu.getInvoker() != LWChoicePeer.this.getTarget()) {
+                            popupMenu.setVisible(false);
+                            popupMenu.show(LWChoicePeer.this.getTarget(), 0, 0);
+                        }
+                    }
+                }
+            });
+        }
+
+        private JPopupMenu getPopupMenu() {
+            for (int i = 0; i < getAccessibleContext().getAccessibleChildrenCount(); i++) {
+                Accessible child = getAccessibleContext().getAccessibleChild(i);
+                if (child instanceof JPopupMenu) {
+                    return  (JPopupMenu) child;
+                }
+            }
+            return null;
+        }
     }
 }