On Wed, 5 Nov 2025 11:16:28 GMT, Lukasz Kostyra <[email protected]> wrote:
> Hard to judge just from those messages, but it is possible the root cause is
> similar. The check I added is only in one place and it might not cover all
> cases. Can you provide a full stacktrace for each of those NPEs?
Sure thing, here are the full stack traces:
<details>
<summary><code>createGraphics()</code> exception</summary>
<pre>
java.lang.NullPointerException: Cannot invoke
"com.sun.prism.RTTexture.createGraphics()" because "newtex" is null
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGCanvas$RenderBuf.validate(NGCanvas.java:216)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGCanvas.initCanvas(NGCanvas.java:646)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGCanvas.renderContent(NGCanvas.java:609)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderForClip(NGNode.java:2279)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderRectClip(NGNode.java:2186)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderClip(NGNode.java:2213)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2057)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NodeEffectInput.getImageDataForBoundedNode(NodeEffectInput.java:237)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NodeEffectInput.filter(NodeEffectInput.java:131)
at
javafx.graphics@26-internal/com.sun.scenario.effect.FilterEffect.filter(FilterEffect.java:185)
at
javafx.graphics@26-internal/com.sun.scenario.effect.Offset.filter(Offset.java:160)
at
javafx.graphics@26-internal/com.sun.scenario.effect.Merge.filter(Merge.java:148)
at
javafx.graphics@26-internal/com.sun.scenario.effect.DelegateEffect.filter(DelegateEffect.java:70)
at
javafx.graphics@26-internal/com.sun.scenario.effect.impl.prism.PrEffectHelper.render(PrEffectHelper.java:166)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.EffectFilter.render(EffectFilter.java:61)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderEffect(NGNode.java:2350)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2060)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderForClip(NGNode.java:2279)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderRectClip(NGNode.java:2186)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderClip(NGNode.java:2213)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2057)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:481)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.paintImpl(ViewPainter.java:321)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:92)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)
at
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:369)
at
javafx.graphics@26-internal/com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1090)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:614)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:122)
at java.base/java.lang.Thread.run(Thread.java:1474)
</pre>
</details>
<details>
<summary><code>assertLocked()</code> exception</summary>
<pre>
java.lang.NullPointerException: Cannot invoke
"com.sun.prism.Texture.assertLocked()" because "this.maskTex" is null
at
javafx.graphics@26-internal/com.sun.prism.impl.BaseContext.updateMaskTexture(BaseContext.java:271)
at
javafx.graphics@26-internal/com.sun.prism.impl.ps.BaseShaderGraphics.renderShape(BaseShaderGraphics.java:506)
at
javafx.graphics@26-internal/com.sun.prism.impl.BaseGraphics.fill(BaseGraphics.java:424)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderBackgroundShape(NGRegion.java:710)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderAsShape(NGRegion.java:662)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:573)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderOpacity(NGNode.java:2323)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2051)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NodeEffectInput.getImageDataForBoundedNode(NodeEffectInput.java:237)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NodeEffectInput.filter(NodeEffectInput.java:131)
at
javafx.graphics@26-internal/com.sun.scenario.effect.FilterEffect.filter(FilterEffect.java:185)
at
javafx.graphics@26-internal/com.sun.scenario.effect.Offset.filter(Offset.java:160)
at
javafx.graphics@26-internal/com.sun.scenario.effect.Merge.filter(Merge.java:148)
at
javafx.graphics@26-internal/com.sun.scenario.effect.DelegateEffect.filter(DelegateEffect.java:70)
at
javafx.graphics@26-internal/com.sun.scenario.effect.impl.prism.PrEffectHelper.render(PrEffectHelper.java:166)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.EffectFilter.render(EffectFilter.java:61)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderEffect(NGNode.java:2350)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2060)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderForClip(NGNode.java:2279)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderRectClip(NGNode.java:2186)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderClip(NGNode.java:2213)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2057)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:266)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:579)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2063)
at
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1955)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:481)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.paintImpl(ViewPainter.java:321)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:92)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)
at
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:369)
at
javafx.graphics@26-internal/com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1090)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:614)
at
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:122)
at java.base/java.lang.Thread.run(Thread.java:1474)
</pre>
</details>
-------------
PR Comment: https://git.openjdk.org/jfx/pull/1951#issuecomment-3490661072
