I doubleclicked the Ensemble.jar but did not see any window after a long waiting time.
Then in the shell I found this:

N:\javafx-sdk2.0-beta\apps>java -jar Ensemble.jar
*** Fallback to Prism SW pipeline
Ensemble2.goToPage[SAMPLES]
java.lang.UnsupportedOperationException: com.sun.prism.camera.PrismPerspectiveCameraImpl@84f665 not supported.
        at com.sun.prism.j2d.J2DPrismGraphics.setCamera(J2DPrismGraphics.java:818)
        at com.sun.javafx.tk.quantum.PaintRunnable.paintImpl(PaintRunnable.java:136)
        at com.sun.javafx.tk.quantum.PaintRunnable.run(PaintRunnable.java:238)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
        at com.sun.prism.render.RenderJob.run(RenderJob.java:29)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at com.sun.javafx.tk.quantum.QuantumRenderer$ObservedRunnable.run(QuantumRenderer.java:70)
        at java.lang.Thread.run(Thread.java:662)



After
N:\javafx-sdk2.0-beta\apps>java -jar Ensemble.jar
*** Fallback to Prism SW pipeline
Ensemble2.goToPage[SAMPLES]
I have to wait around one minute until in the taskbar the application appears. It has the java
mini logo but no title. The window itself is not visible.
When I click on the application in the taskbar to give it focus and then move my mouse over
the area where application is supposed to be, then the shell gets flooded with the exception
above. I even managed to hit the invisible maximize button, which indeed maximizes the
invisible window (as I can see by graphical glitches, and by the Exceptions when I move my
mouse pointer).