src/java.desktop/macosx/classes/sun/lwawt/macosx/LWCToolkit.java

*** 552,562 ****
      }
  
      @Override
      public Image getImage(URL url) {
  
!         if (imageCached(url)) {
              return super.getImage(url);
          }
  
          URL url2x = getScaledImageURL(url);
          return (imageExists(url2x))
--- 552,562 ----
      }
  
      @Override
      public Image getImage(URL url) {
  
!         if (url == null || imageCached(url)) {
              return super.getImage(url);
          }
  
          URL url2x = getScaledImageURL(url);
          return (imageExists(url2x))