--- a/jdk/src/share/classes/javax/swing/plaf/metal/MetalRadioButtonUI.java	Wed Nov 04 10:13:52 2009 -0800
+++ b/jdk/src/share/classes/javax/swing/plaf/metal/MetalRadioButtonUI.java	Fri Nov 06 19:48:09 2009 +0300
@@ -26,6 +26,8 @@
 package javax.swing.plaf.metal;
 
 import sun.swing.SwingUtilities2;
+import sun.awt.AppContext;
+
 import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
@@ -53,7 +55,7 @@
  */
 public class MetalRadioButtonUI extends BasicRadioButtonUI {
 
-    private static final MetalRadioButtonUI metalRadioButtonUI = new MetalRadioButtonUI();
+    private static final Object METAL_RADIO_BUTTON_UI_KEY = new Object();
 
     protected Color focusColor;
     protected Color selectColor;
@@ -65,6 +67,13 @@
     //        Create PlAF
     // ********************************
     public static ComponentUI createUI(JComponent c) {
+        AppContext appContext = AppContext.getAppContext();
+        MetalRadioButtonUI metalRadioButtonUI =
+                (MetalRadioButtonUI) appContext.get(METAL_RADIO_BUTTON_UI_KEY);
+        if (metalRadioButtonUI == null) {
+            metalRadioButtonUI = new MetalRadioButtonUI();
+            appContext.put(METAL_RADIO_BUTTON_UI_KEY, metalRadioButtonUI);
+        }
         return metalRadioButtonUI;
     }