From eba31493ac46e8fc4645a7c46dd9fb691e05bce3 Mon Sep 17 00:00:00 2001
From: rkennke <unknown>
Date: Wed, 15 Oct 2008 15:55:19 +0200
Subject: [PATCH] 6759311: RepaintManager casts Tookit to SunToolkit without
 instanceof check Summary: Check type of Toolkit before casting. Reviewed-by:
 alexp

---
 .../classes/javax/swing/RepaintManager.java   | 22 ++++++++++++++-----
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/src/share/classes/javax/swing/RepaintManager.java b/src/share/classes/javax/swing/RepaintManager.java
index b0e6c048f..981ea1fe8 100644
--- a/src/share/classes/javax/swing/RepaintManager.java
+++ b/src/share/classes/javax/swing/RepaintManager.java
@@ -1305,9 +1305,12 @@ public class RepaintManager
             if (doubleBufferingEnabled && !nativeDoubleBuffering) {
                 switch (bufferStrategyType) {
                 case BUFFER_STRATEGY_NOT_SPECIFIED:
-                    if (((SunToolkit)Toolkit.getDefaultToolkit()).
-                                                useBufferPerWindow()) {
-                        paintManager = new BufferStrategyPaintManager();
+                    Toolkit tk = Toolkit.getDefaultToolkit();
+                    if (tk instanceof SunToolkit) {
+                        SunToolkit stk = (SunToolkit) tk;
+                        if (stk.useBufferPerWindow()) {
+                            paintManager = new BufferStrategyPaintManager();
+                        }
                     }
                     break;
                 case BUFFER_STRATEGY_SPECIFIED_ON:
@@ -1329,9 +1332,16 @@ public class RepaintManager
 
     private void scheduleProcessingRunnable(AppContext context) {
         if (processingRunnable.markPending()) {
-            SunToolkit.getSystemEventQueueImplPP(context).
-                postEvent(new InvocationEvent(Toolkit.getDefaultToolkit(),
-                                              processingRunnable));
+            Toolkit tk = Toolkit.getDefaultToolkit();
+            if (tk instanceof SunToolkit) {
+                SunToolkit.getSystemEventQueueImplPP(context).
+                  postEvent(new InvocationEvent(Toolkit.getDefaultToolkit(),
+                                                processingRunnable));
+            } else {
+                Toolkit.getDefaultToolkit().getSystemEventQueue().
+                      postEvent(new InvocationEvent(Toolkit.getDefaultToolkit(),
+                                                    processingRunnable));
+            }
         }
     }
 
-- 
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