On Wed, 3 May 2023 11:46:50 GMT, Daniel <d...@openjdk.org> wrote: > A null pointer exception occurs on the ScenePulseListener when iterating > through the dirty node list. > A null check is needed on the node before calling node.getScene(). > > The error occurs occasionally and causes the application to crash. > > Issue: [JDK-8298104: NPE on > synchronizeSceneNodes()](https://bugs.openjdk.org/browse/JDK-8298104)
Hi John, I've been working on moving our project from Java 8 to Java 17 and JavaFX 21 for the past month. But I can't seem to fix a bug that keeps showing up, even after running the applications for over 10 days on JavaFX version 21.0.1. Now, I'm having trouble compiling javafx-graphics for Windows. Any ideas on how to figure out what's causing the problem? best regards, Daniel  2023-12-15 11:00:37,026 ERROR [JavaFX Application Thread] c.m.a.e.AdviseUncaughtExceptionHandler [?:?] AdviseUncaughtExceptionHandler uncaughtException detects NullPointerException 2023-12-15 11:00:37,026 ERROR [JavaFX Application Thread] c.m.a.e.AdviseUncaughtExceptionHandler [?:?] NullPointerException => java.lang.NullPointerException: Cannot invoke "javafx.scene.Node.getScene()" because "<local2>" is null at javafx.scene.Scene$ScenePulseListener.synchronizeSceneNodes(Scene.java:2483) at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2630) at com.sun.javafx.tk.Toolkit.lambda$runPulse$2(Toolkit.java:401) at java.base/java.security.AccessController.doPrivileged(AccessController.java:399) at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:400) at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:430) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:592) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:572) at com.sun.javafx.tk.quantum.QuantumToolkit.pulseFromQueue(QuantumToolkit.java:565) at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$11(QuantumToolkit.java:352) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:185) at java.base/java.lang.Thread.run(Thread.java:840) 2023-12-15 11:00:37,027 ERROR [JavaFX Application Thread] c.m.a.e.AdviseUncaughtExceptionHandler [?:?] Exception java.lang.NullPointerException: Cannot invoke "javafx.scene.Node.getScene()" because "<local2>" is null at javafx.scene.Scene$ScenePulseListener.synchronizeSceneNodes(Scene.java:2483) at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2630) at com.sun.javafx.tk.Toolkit.lambda$runPulse$2(Toolkit.java:401) at java.base/java.security.AccessController.doPrivileged(AccessController.java:399) at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:400) at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:430) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:592) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:572) at com.sun.javafx.tk.quantum.QuantumToolkit.pulseFromQueue(QuantumToolkit.java:565) at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$11(QuantumToolkit.java:352) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:185) at java.base/java.lang.Thread.run(Thread.java:840) 2023-12-15 11:00:37,029 ERROR [JavaFX Application Thread] c.m.a.e.AdviseUncaughtExceptionHandler [?:?] BÄÄHHMM, get more informations => java.lang.NullPointerException: Cannot invoke "javafx.scene.Node.getScene()" because "<local2>" is null at javafx.scene.Scene$ScenePulseListener.synchronizeSceneNodes(Scene.java:2483) ------------- PR Comment: https://git.openjdk.org/jfx/pull/1123#issuecomment-1867506290
