src/java.desktop/share/classes/sun/awt/image/SunVolatileImage.java

*** 231,242 ****
      /**
       * This method creates a BufferedImage intended for use as a "snapshot"
       * or a backup surface.
       */
      public BufferedImage getBackupImage() {
!         return graphicsConfig.createCompatibleImage(getWidth(), getHeight(),
!                                                     getTransparency());
      }
  
      public BufferedImage getSnapshot() {
          BufferedImage bi = getBackupImage();
          Graphics2D g = bi.createGraphics();
--- 231,251 ----
      /**
       * This method creates a BufferedImage intended for use as a "snapshot"
       * or a backup surface.
       */
      public BufferedImage getBackupImage() {
!         return getBackupImage(1, 1);
!     }
! 
!     /**
!      * This method creates a BufferedImage intended for use as a "snapshot"
!      * or a backup surface with the given horizontal and vertical scale factors.
!      */
!     public BufferedImage getBackupImage(double scaleX, double scaleY) {
!         int w = (int) Math.ceil(getWidth() * scaleX);
!         int h = (int) Math.ceil(getHeight() * scaleY);
!         return graphicsConfig.createCompatibleImage(w, h, getTransparency());
      }
  
      public BufferedImage getSnapshot() {
          BufferedImage bi = getBackupImage();
          Graphics2D g = bi.createGraphics();