I observe the following on linux-armhf.

I have one and the same java program (attached).

However, It renders differently if run with -Dsun.java2d.opengl=True option.

When run with -Dsun.java2d.opengl=True option the image seems to be turned upside down.

I have attached the program and the different images it produces.

To run:

1) java -Dsun.java2d.opengl=False -cp ./RenderingTest.jar RenderingTest -show
2) java -Dsun.java2d.opengl=True -cp ./RenderingTest.jar RenderingTest -show

You will see the images are different on screen in these two cases

I do not observe this on linux-i586