OS: Ubuntu 14.04 Linux, Unity / GNOME + HiDPI display (but the issue is also reproducible on non-HiDPI display), JDK9 b101

Please run test code from JDK-8147016
1. 1x image is displayed. is it what expected (see JDK-8147557)?
2. try to switch display resolution. No image is displayed after repaint, ClassCastException is reported:

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
at sun.java2d.xr.XRPMBlitLoops.cacheToTmpSurface(XRPMBlitLoops.java:145)
at sun.java2d.xr.XrSwToPMBlit.Blit(XRPMBlitLoops.java:354)
at sun.java2d.SurfaceDataProxy.updateSurfaceData(SurfaceDataProxy.java:498)
at sun.java2d.SurfaceDataProxy.replaceData(SurfaceDataProxy.java:455)
at sun.java2d.SurfaceData.getSourceSurfaceData(SurfaceData.java:233)
at sun.java2d.pipe.DrawImage.renderImageScale(DrawImage.java:629)
at sun.java2d.pipe.DrawImage.scaleImage(DrawImage.java:724)
at sun.java2d.pipe.DrawImage.scaleImage(DrawImage.java:1069)
at sun.java2d.pipe.ValidatePipe.scaleImage(ValidatePipe.java:219)
at sun.java2d.SunGraphics2D.scaleImage(SunGraphics2D.java:3180)
at sun.java2d.SunGraphics2D.drawHiDPIImage(SunGraphics2D.java:3166)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3399)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3383)
at MultiRes.paint(MultiRes.java:50)
        ...

(please find the logs attached)