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Type: Bug
Resolution: Fixed
Priority: P3
Fix Version/s: 8
Affects Version/s: None
Component/s: javafx
Labels:
- nullpointerexception
- webview
Environment:

Windows 8 / Linux (Fedora 19)

Subcomponent:
web

The problem is in Java 8.

We open a WebView and we load :
<!DOCTYPE html>
<html>
    <head>
        <script src="http://maps.google.com/maps/api/js?key=privatekey&sensor=true"></script>
        <style>
            html, body {
                height: 100%;
                width: 100%;
            }
            #mapcanvas { height: 100%; width: 100%}
        </style>
        <script type='text/javascript'>

            var map;
            function loadmap() {
                var options = {
                    zoom: 6,
                    center: new google.maps.LatLng(48.856667, 2.350987),
                    mapTypeId: google.maps.MapTypeId.ROADMAP
                };
                map = new google.maps.Map(document.getElementById("mapcanvas"), options);
            }
        </script>

    </head>
    <body onload="loadmap()">
        <div id="mapcanvas"></div>
        

    </body>

</html>

it works but when we navigate and zoom in/out we have this error:
java.lang.NullPointerException
at com.sun.javafx.webkit.prism.RTImage.getTexture(RTImage.java:58)
at com.sun.javafx.webkit.prism.RTImage.getGraphics(RTImage.java:46)
at com.sun.javafx.webkit.prism.WCBufferedContext.init(WCBufferedContext.java:36)
at com.sun.javafx.webkit.prism.WCBufferedContext.getGraphics(WCBufferedContext.java:25)
at com.sun.javafx.webkit.prism.WCGraphicsPrismContext$Composite.paint(WCGraphicsPrismContext.java:1287)
at com.sun.javafx.webkit.prism.WCGraphicsPrismContext.clearRect(WCGraphicsPrismContext.java:438)
at com.sun.webkit.graphics.GraphicsDecoder.decode(GraphicsDecoder.java:103)
at com.sun.webkit.graphics.WCRenderQueue.decode(WCRenderQueue.java:69)
at com.sun.webkit.graphics.WCRenderQueue.decode(WCRenderQueue.java:80)
at com.sun.webkit.graphics.WCRenderQueue.decode(WCRenderQueue.java:86)
at com.sun.webkit.graphics.GraphicsDecoder.decode(GraphicsDecoder.java:322)
at com.sun.webkit.graphics.WCRenderQueue.decode(WCRenderQueue.java:69)
at com.sun.webkit.WebPage.paint2GC(WebPage.java:669)
at com.sun.webkit.WebPage.paint(WebPage.java:637)
at com.sun.javafx.sg.prism.NGWebView.renderContent(NGWebView.java:73)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1168)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1168)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:472)
at com.sun.javafx.tk.quantum.ViewPainter.paintImpl(ViewPainter.java:324)
at com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:88)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:129)
at java.lang.Thread.run(Thread.java:724)
java.lang.NullPointerException
at com.sun.javafx.webkit.prism.RTImage.getTexture(RTImage.java:58)
at com.sun.javafx.webkit.prism.RTImage.draw(RTImage.java:92)
at com.sun.javafx.webkit.prism.WCGraphicsPrismContext$7.doPaint(WCGraphicsPrismContext.java:693)
at com.sun.javafx.webkit.prism.WCGraphicsPrismContext$Composite.paint(WCGraphicsPrismContext.java:1302)
at com.sun.javafx.webkit.prism.WCGraphicsPrismContext$Composite.paint(WCGraphicsPrismContext.java:1287)
at com.sun.javafx.webkit.prism.WCGraphicsPrismContext.drawImage(WCGraphicsPrismContext.java:700)
at com.sun.webkit.graphics.GraphicsDecoder.drawImage(GraphicsDecoder.java:408)
at com.sun.webkit.graphics.GraphicsDecoder.decode(GraphicsDecoder.java:166)
at com.sun.webkit.graphics.WCRenderQueue.decode(WCRenderQueue.java:69)
at com.sun.webkit.WebPage.paint2GC(WebPage.java:669)
at com.sun.webkit.WebPage.paint(WebPage.java:637)
at com.sun.javafx.sg.prism.NGWebView.renderContent(NGWebView.java:73)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1168)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1168)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:472)
at com.sun.javafx.tk.quantum.ViewPainter.paintImpl(ViewPainter.java:324)
at com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:88)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:129)
at java.lang.Thread.run(Thread.java:724)
java.lang.IllegalStateException: Unbalanced saveState/restoreState
at com.sun.javafx.webkit.prism.WCGraphicsPrismContext.dispose(WCGraphicsPrismContext.java:1576)
at com.sun.javafx.webkit.prism.WCPageBackBufferImpl.disposeGraphics(WCPageBackBufferImpl.java:40)
at com.sun.webkit.WebPage.paint(WebPage.java:639)
at com.sun.javafx.sg.prism.NGWebView.renderContent(NGWebView.java:73)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1168)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1168)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:225)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2028)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1937)
at com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:472)
at com.sun.javafx.tk.quantum.ViewPainter.paintImpl(ViewPainter.java:324)
at com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:88)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:129)
at java.lang.Thread.run(Thread.java:724)

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