I found RT-14404 and RT-14644 and those look very similar to the NPE that I saw today on a friends computer:

 java.lang.NullPointerException
 at com.sun.prism.impl.BaseGraphics.drawTextureVO(BaseGraphics.java:378)
 at com.sun.prism.impl.BaseGraphics.drawTexture(BaseGraphics.java:332)
 at com.sun.prism.impl.BaseGraphics.drawTexture(BaseGraphics.java:323)
 at com.sun.prism.d3d.D3DSwapChain.present(D3DSwapChain.java:42)
 at com.sun.javafx.tk.quantum.PaintRunnable.run(PaintRunnable.java:241)
 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)