More than 2x sample buffers

>
> Hi, I am relatively new to the newest build of JOGL, and I have an issue with
> the sample buffers:
>
> I use this method to set the GLCapabilities
>
>     private static GLCapabilities getCapabilities(){
>         GLProfile profile = GLProfile.get(GLProfile.GL3bc);
>         GLCapabilities capabilities = new GLCapabilities(profile);
>         capabilities.setNumSamples(2);
>         capabilities.setSampleBuffers(true);        
>         return capabilities;
>     }
>
> This gives me a x2 antialiasing but when I try 4, 8, 16 it returns to single
> sample buffer.
>
> Can you tell what am I doing wrong?
>