test/jdk/javax/swing/JWindow/ShapedAndTranslucentWindows/PerPixelTranslucentSwing.java

*** 86,96 ****
          Rectangle bounds = north.getBounds();
          Point loc = north.getLocationOnScreen();
  
          Color color = robot.getPixelColor(loc.x + bounds.width / 2, loc.y + bounds.height + 3);
          System.out.println(color);
!         if (FG_COLOR.getRGB() == color.getRGB())
              throw new RuntimeException("Background is not translucent (" + color + ")");
  
          EventQueue.invokeAndWait(this::dispose);
      }
  }
--- 86,96 ----
          Rectangle bounds = north.getBounds();
          Point loc = north.getLocationOnScreen();
  
          Color color = robot.getPixelColor(loc.x + bounds.width / 2, loc.y + bounds.height + 3);
          System.out.println(color);
!         if (BG_COLOR.getRGB() != color.getRGB())
              throw new RuntimeException("Background is not translucent (" + color + ")");
  
          EventQueue.invokeAndWait(this::dispose);
      }
  }