JavaFX：线程 "JavaFX Application Thread" java.lang.NullPointerException 中的异常：无法调用 "com.sun.prism.GraphicsPipeline.is3DSupported()"

Question

我正在编写一个显示未修饰阶段的 JavaFX 应用程序。为了关闭我的应用程序，我使用了一个按钮，它调用方法 System.exit(0); 问题是，当我使用它时，有时会出现此异常而没有指向我的代码的链接：

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException: Cannot invoke "com.sun.prism.GraphicsPipeline.is3DSupported()" because the return value of "com.sun.prism.GraphicsPipeline.getPipeline()" is null
at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.isSupported(QuantumToolkit.java:1208)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.isSupportedImpl(PlatformImpl.java:960)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.isSupported(PlatformImpl.java:627)
at javafx.graphics/javafx.application.Platform.isSupported(Platform.java:252)
at javafx.graphics/com.sun.javafx.scene.input.PickResultChooser.processOffer(PickResultChooser.java:182)
at javafx.graphics/com.sun.javafx.scene.input.PickResultChooser.offer(PickResultChooser.java:143)
at javafx.graphics/javafx.scene.Node.intersects(Node.java:5226)
at javafx.graphics/javafx.scene.Node.intersects(Node.java:544)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.intersects(NodeHelper.java:258)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3161)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:184)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:128)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5199)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:806)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:136)
at javafx.graphics/com.sun.javafx.scene.ParentHelper.pickChildrenNode(ParentHelper.java:113)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3160)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:184)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:128)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5199)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:806)
at javafx.graphics/javafx.scene.Parent.pickChildrenNode(Parent.java:136)
at javafx.graphics/com.sun.javafx.scene.ParentHelper.pickChildrenNode(ParentHelper.java:113)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3160)
at javafx.graphics/javafx.scene.layout.Region.doPickNodeLocal(Region.java:184)
at javafx.graphics/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:128)
at javafx.graphics/javafx.scene.Node.pickNode(Node.java:5199)
at javafx.graphics/javafx.scene.Scene$MouseHandler.pickNode(Scene.java:3999)
at javafx.graphics/javafx.scene.Scene.pick(Scene.java:2031)
at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3809)
at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1851)
at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2584)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:409)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:299)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent(GlassViewEventHandler.java:447)
at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:412)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:446)
at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556)
at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:832)

Answer 1

调用 Platform.exit() 而不是 System.exit();