src/java.desktop/share/classes/javax/swing/RepaintManager.java

*** 334,343 ****
--- 334,347 ----
          processingRunnable = new ProcessingRunnable();
      }
  
      private void displayChanged() {
          clearImages();
+ 
+         // Reset buffer maximum size to get valid size from updated graphics
+         // environment in getDoubleBufferMaximumSize()
+         setDoubleBufferMaximumSize(null);
      }
  
      /**
       * Mark the component as in need of layout and queue a runnable
       * for the event dispatching thread that will validate the components