--- a/jdk/src/share/classes/javax/swing/plaf/basic/BasicCheckBoxUI.java	Wed Nov 04 10:13:52 2009 -0800
+++ b/jdk/src/share/classes/javax/swing/plaf/basic/BasicCheckBoxUI.java	Fri Nov 06 19:48:09 2009 +0300
@@ -25,6 +25,8 @@
 
 package javax.swing.plaf.basic;
 
+import sun.awt.AppContext;
+
 import javax.swing.*;
 
 import java.awt.*;
@@ -49,7 +51,7 @@
  */
 public class BasicCheckBoxUI extends BasicRadioButtonUI {
 
-    private final static BasicCheckBoxUI checkboxUI = new BasicCheckBoxUI();
+    private static final Object BASIC_CHECK_BOX_UI_KEY = new Object();
 
     private final static String propertyPrefix = "CheckBox" + ".";
 
@@ -57,6 +59,13 @@
     //            Create PLAF
     // ********************************
     public static ComponentUI createUI(JComponent b) {
+        AppContext appContext = AppContext.getAppContext();
+        BasicCheckBoxUI checkboxUI =
+                (BasicCheckBoxUI) appContext.get(BASIC_CHECK_BOX_UI_KEY);
+        if (checkboxUI == null) {
+            checkboxUI = new BasicCheckBoxUI();
+            appContext.put(BASIC_CHECK_BOX_UI_KEY, checkboxUI);
+        }
         return checkboxUI;
     }