Applet fails to launch on virtual desktop and throws AWT exceptions.

Steps to reproduce
  - install 9 b71 on Windows (tested on Win7 64-bit)
     http://jre.us.oracle.com/java/re/jdk/9/promoted/all/b71/bundles/windows-i586/
 - install Desktops tool from Sysinternals
    https://technet.microsoft.com/en-us/library/cc817881.aspx
 - switch to 4 desktop (works fine for first dekstop)
 - enable console in JCP, run applet in FF
    http://docs.oracle.com/javase/tutorial/deployment/applet/deployingApplet.html
 - it fails with the following message in console

Exception in thread "AWT-EventQueue-2" java.lang.ClassCastException: Component must be a Canvas or Window
at java.awt.Component$FlipBufferStrategy.<init>(Component.java:4054)
at java.awt.Component$FlipSubRegionBufferStrategy.<init>(Component.java:4587)
at java.awt.Component.createBufferStrategy(Component.java:3927)
at java.awt.Component$1.createBufferStrategy(Component.java:980)
at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:791)
at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:757)
at javax.swing.BufferStrategyPaintManager$BufferInfo.getBufferStrategy(BufferStrategyPaintManager.java:699)
at javax.swing.BufferStrategyPaintManager.prepare(BufferStrategyPaintManager.java:476)
at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:232)
at javax.swing.RepaintManager.paint(RepaintManager.java:1302)
at javax.swing.JComponent.paint(JComponent.java:1039)
at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:78)
at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:115)
at java.awt.Container.paint(Container.java:1998)
at javax.swing.RepaintManager$4.run(RepaintManager.java:857)
at javax.swing.RepaintManager$4.run(RepaintManager.java:829)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:829)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:804)
at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:753)
at javax.swing.RepaintManager.access$1200(RepaintManager.java:65)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1762)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:759)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:712)
at java.awt.EventQueue$3.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:77)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:729)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:192)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:106)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:102)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:94)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:83)