src/share/classes/com/sun/java/swing/SwingUtilities3.java

@@ -25,10 +25,12 @@
 
 package com.sun.java.swing;
 
 import sun.awt.EventQueueDelegate;
 import sun.awt.AppContext;
+import sun.awt.SunToolkit;
+
 import java.util.Collections;
 import java.util.Map;
 import java.util.WeakHashMap;
 import java.util.concurrent.Callable;
 import java.applet.Applet;

@@ -115,12 +117,12 @@
      * Returns delegate {@code RepaintManager} for {@code component} hierarchy.
      */
     public static RepaintManager getDelegateRepaintManager(Component
                                                             component) {
         RepaintManager delegate = null;
-        if (Boolean.TRUE == AppContext.getAppContext().get(
-                                               DELEGATE_REPAINT_MANAGER_KEY)) {
+        if (Boolean.TRUE == SunToolkit.targetToAppContext(component)
+                                      .get(DELEGATE_REPAINT_MANAGER_KEY)) {
             while (delegate == null && component != null) {
                 while (component != null
                          && ! (component instanceof JComponent)) {
                     component = component.getParent();
                 }