java.lang.NullPointerException

GitHub | JeroenPleysier | 8 months ago
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    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179
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    Stack Overflow | 6 years ago | Tom
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.sun.prism.d3d.D3DTexture.getContext()
    2. com.sun.prism
      BaseShaderGraphics.drawTexture
      1. com.sun.prism.d3d.D3DTexture.getContext(D3DTexture.java:84)
      2. com.sun.prism.d3d.D3DTexture.update(D3DTexture.java:207)
      3. com.sun.prism.d3d.D3DTexture.update(D3DTexture.java:151)
      4. com.sun.prism.impl.BaseContext.flushMask(BaseContext.java:109)
      5. com.sun.prism.impl.BaseContext.drawQuads(BaseContext.java:118)
      6. com.sun.prism.impl.VertexBuffer.flush(VertexBuffer.java:98)
      7. com.sun.prism.impl.BaseContext.flushVertexBuffer(BaseContext.java:101)
      8. com.sun.prism.impl.ps.BaseShaderContext.setRenderTarget(BaseShaderContext.java:746)
      9. com.sun.prism.impl.BaseContext.setRenderTarget(BaseContext.java:131)
      10. com.sun.prism.impl.ps.BaseShaderContext.checkState(BaseShaderContext.java:644)
      11. com.sun.prism.impl.ps.BaseShaderContext.validateTextureOp(BaseShaderContext.java:583)
      12. com.sun.prism.impl.ps.BaseShaderContext.validateTextureOp(BaseShaderContext.java:500)
      13. com.sun.prism.impl.BaseGraphics.drawTexture(BaseGraphics.java:419)
      14. com.sun.prism.impl.ps.BaseShaderGraphics.drawTexture(BaseShaderGraphics.java:139)
      14 frames
    3. com.sun.javafx
      WCPageBackBufferImpl.flush
      1. com.sun.javafx.webkit.prism.WCPageBackBufferImpl.flush(WCPageBackBufferImpl.java:68)
      1 frame
    4. com.sun.webkit
      WebPage.paint
      1. com.sun.webkit.WebPage.paint(WebPage.java:670)
      1 frame
    5. com.sun.javafx
      PresentingPainter.run
      1. com.sun.javafx.sg.prism.web.NGWebView.renderContent(NGWebView.java:96)
      2. com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2053)
      3. com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1945)
      4. com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:235)
      5. com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:576)
      6. com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2053)
      7. com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1945)
      8. com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:235)
      9. com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:576)
      10. com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2053)
      11. com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1945)
      12. com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:477)
      13. com.sun.javafx.tk.quantum.ViewPainter.paintImpl(ViewPainter.java:330)
      14. com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:91)
      14 frames
    6. Java RT
      FutureTask.runAndReset
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      2. java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
      2 frames
    7. com.sun.javafx
      RenderJob.run
      1. com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
      1 frame
    8. Java RT
      ThreadPoolExecutor$Worker.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      2 frames
    9. com.sun.javafx
      QuantumRenderer$PipelineRunnable.run
      1. com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:125)
      1 frame
    10. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame