jdk/src/share/classes/java/awt/Canvas.java

@@ -70,13 +70,13 @@
     }
 
     @Override
     void setGraphicsConfiguration(GraphicsConfiguration gc) {
         synchronized(getTreeLock()) {
-            CanvasPeer peer = (CanvasPeer)getPeer();
-            if (peer != null) {
-                gc = peer.getAppropriateGraphicsConfiguration(gc);
+            CanvasPeer canvasPeer = (CanvasPeer)peer;
+            if (canvasPeer != null) {
+                gc = canvasPeer.getAppropriateGraphicsConfiguration(gc);
             }
             super.setGraphicsConfiguration(gc);
         }
     }