jdk/src/share/classes/sun/java2d/SunGraphicsEnvironment.java

*** 163,173 ****
  
      /**
       * Returns the default screen graphics device.
       */
      public GraphicsDevice getDefaultScreenDevice() {
!         return getScreenDevices()[0];
      }
  
      /**
       * Returns a Graphics2D object for rendering into the
       * given BufferedImage.
--- 163,177 ----
  
      /**
       * Returns the default screen graphics device.
       */
      public GraphicsDevice getDefaultScreenDevice() {
!         GraphicsDevice[] screens = getScreenDevices();
!         if (screens.length == 0) {
!             throw new AWTError("no screen devices");
!         }
!         return screens[0];
      }
  
      /**
       * Returns a Graphics2D object for rendering into the
       * given BufferedImage.