Reproducible with this IE test: http://ie.microsoft.com/testdrive/Graphics/HowStuffWorksGears/Default.html
     [java] java.lang.NullPointerException
     [java] at com.sun.prism.impl.ps.PaintHelper.stopsToImage(PaintHelper.java:113)
     [java] at com.sun.prism.impl.ps.PaintHelper.initGradient(PaintHelper.java:137)
     [java] at com.sun.prism.impl.ps.PaintHelper.setMultiGradient(PaintHelper.java:164)
     [java] at com.sun.prism.impl.ps.PaintHelper.setLinearGradient(PaintHelper.java:271)
     [java] at com.sun.prism.impl.ps.BaseShaderContext.updatePaintShader(BaseShaderContext.java:208)
     [java] at com.sun.prism.impl.ps.BaseShaderContext.validatePaintOp(BaseShaderContext.java:378)
     [java] at com.sun.prism.impl.ps.BaseShaderContext.validatePaintOp(BaseShaderContext.java:292)
     [java] at com.sun.prism.impl.ps.BaseShaderGraphics.fillQuad(BaseShaderGraphics.java:803)
     [java] at com.sun.prism.impl.shape.BasicRoundRectRep.fillRoundRect(BasicRoundRectRep.java:38)
     [java] at com.sun.prism.impl.shape.BasicRoundRectRep.fill(BasicRoundRectRep.java:24)
     [java] at com.sun.javafx.sg.prism.NGShape.renderContent(NGShape.java:133)
     [java] at com.sun.javafx.sg.prism.NodeEffectInput.getImageDataForBoundedNode(NodeEffectInput.java:174)
     [java] at com.sun.javafx.sg.prism.NodeEffectInput.filter(NodeEffectInput.java:77)
     [java] at com.sun.scenario.effect.FilterEffect.filter(FilterEffect.java:167)
     [java] at com.sun.scenario.effect.Offset.filter(Offset.java:161)
     [java] at com.sun.scenario.effect.Merge.filter(Merge.java:147)
     [java] at com.sun.scenario.effect.DelegateEffect.filter(DelegateEffect.java:68)
     [java] at com.sun.scenario.effect.impl.prism.PrEffectHelper.render(PrEffectHelper.java:154)
     [java] at com.sun.javafx.sg.prism.NGNode$EffectFilter.render(NGNode.java:753)
     [java] at com.sun.javafx.sg.prism.NGNode.renderEffect(NGNode.java:481)
     [java] at com.sun.javafx.sg.prism.NGRectangle.renderEffect(NGRectangle.java:48)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:183)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:39)
     [java] at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1139)
     [java] at com.sun.webpane.sg.prism.WCGraphicsPrismContext.render(WCGraphicsPrismContext.java:857)
     [java] at com.sun.webpane.sg.prism.WCGraphicsPrismContext.fillRect(WCGraphicsPrismContext.java:355)
     [java] at com.sun.webpane.platform.graphics.GraphicsDecoder.decode(GraphicsDecoder.java:81)
     [java] at com.sun.webpane.platform.graphics.WCRenderQueue.decode(WCRenderQueue.java:70)
     [java] at com.sun.webpane.platform.graphics.WCRenderQueue.decode(WCRenderQueue.java:84)
     [java] at com.sun.webpane.platform.graphics.GraphicsDecoder.decode(GraphicsDecoder.java:327)
     [java] at com.sun.webpane.platform.graphics.WCRenderQueue.decode(WCRenderQueue.java:70)
     [java] at com.sun.webpane.platform.graphics.WCRenderQueue.decode(WCRenderQueue.java:84)
     [java] at com.sun.webpane.platform.graphics.GraphicsDecoder.decode(GraphicsDecoder.java:327)
     [java] at com.sun.webpane.platform.graphics.WCRenderQueue.decode(WCRenderQueue.java:70)
     [java] at com.sun.webpane.platform.graphics.WCRenderQueue.decode(WCRenderQueue.java:84)
     [java] at com.sun.webpane.platform.graphics.GraphicsDecoder.decode(GraphicsDecoder.java:327)
     [java] at com.sun.webpane.platform.graphics.WCRenderQueue.decode(WCRenderQueue.java:70)
     [java] at com.sun.webpane.platform.WebPage.paint2GC(WebPage.java:678)
     [java] at com.sun.webpane.platform.WebPage.paint(WebPage.java:658)
     [java] at com.sun.javafx.sg.prism.NGWebView.renderContent(NGWebView.java:71)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:185)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:39)
     [java] at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1139)
     [java] at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:205)
     [java] at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:420)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:185)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:39)
     [java] at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1139)
     [java] at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:205)
     [java] at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:420)
     [java] at com.sun.javafx.sg.prism.NGNode.renderRectClip(NGNode.java:324)
     [java] at com.sun.javafx.sg.prism.NGNode.renderClip(NGNode.java:351)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:177)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:39)
     [java] at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1139)
     [java] at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:205)
     [java] at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:420)
     [java] at com.sun.javafx.sg.prism.NGNode.renderRectClip(NGNode.java:324)
     [java] at com.sun.javafx.sg.prism.NGNode.renderClip(NGNode.java:351)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:177)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:39)
     [java] at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1139)
     [java] at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:205)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:185)
     [java] at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:39)
     [java] at com.sun.javafx.sg.BaseNode.render(BaseNode.java:1139)
     [java] at com.sun.javafx.tk.quantum.PaintRunnable.doPaint(PaintRunnable.java:214)
     [java] at com.sun.javafx.tk.quantum.PaintRunnable.paintImpl(PaintRunnable.java:151)
     [java] at com.sun.javafx.tk.quantum.PaintRunnable.run(PaintRunnable.java:349)
     [java] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
     [java] at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
     [java] at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
     [java] at com.sun.prism.render.RenderJob.run(RenderJob.java:29)
     [java] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
     [java] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
     [java] at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:101)
     [java] at java.lang.Thread.run(Thread.java:680)