NullPointer this.layoutCache is null

[Krishna Kumar]

I am encountering the following Null Pointer exception during runtime, however the application keeps working as intended.

Exception posted at the end to declutter the mail.

Google search for this exception took me to this thread

https://mail.openjdk.org/pipermail/openjfx-dev/2023-December/044343.html

but in my case the JVM doesn't crash, neither does the application crash. The application continues to work as intended. I am unable to identify the node that causes this as the stack trace doesn't originate from the Application code, could anyone throw some light. I am running the code on  /usr/lib/jvm/bellsoft-java21-full-amd64/bin/java


tion in thread "JavaFX Application Thread" java.lang.NullPointerException: Cannot read field "advances" because "this.layoutCache" is null
        at javafx.graphics/com.sun.javafx.text.PrismTextLayout.shape(PrismTextLayout.java:919)
        at javafx.graphics/com.sun.javafx.text.PrismTextLayout.layout(PrismTextLayout.java:1113)
        at javafx.graphics/com.sun.javafx.text.PrismTextLayout.ensureLayout(PrismTextLayout.java:230)
        at javafx.graphics/com.sun.javafx.text.PrismTextLayout.getBounds(PrismTextLayout.java:256)
        at javafx.graphics/javafx.scene.text.Text.getLogicalBounds(Text.java:432)
        at javafx.graphics/javafx.scene.text.Text.doComputeLayoutBounds(Text.java:1137)
        at javafx.graphics/javafx.scene.text.Text$1.doComputeLayoutBounds(Text.java:143)
        at javafx.graphics/com.sun.javafx.scene.shape.TextHelper.computeLayoutBoundsImpl(TextHelper.java:95)
        at javafx.graphics/com.sun.javafx.scene.NodeHelper.computeLayoutBounds(NodeHelper.java:108)
        at javafx.graphics/javafx.scene.Node$13.computeBounds(Node.java:3474)
        at javafx.graphics/javafx.scene.Node$LazyBoundsProperty.get(Node.java:9749)
        at javafx.graphics/javafx.scene.Node$LazyBoundsProperty.get(Node.java:9740)
        at javafx.graphics/javafx.scene.Node.getLayoutBounds(Node.java:3489)
        at javafx.graphics/javafx.scene.Node.prefWidth(Node.java:2989)
        at javafx.graphics/javafx.scene.Node.minWidth(Node.java:2930)
        at javafx.graphics/javafx.scene.layout.Region.computeChildMinAreaWidth(Region.java:1898)
        at javafx.graphics/javafx.scene.layout.HBox.getAreaWidths(HBox.java:462)
        at javafx.graphics/javafx.scene.layout.HBox.computeContentWidth(HBox.java:549)
        at javafx.graphics/javafx.scene.layout.HBox.computeMinWidth(HBox.java:409)
        at javafx.graphics/javafx.scene.Parent.minWidth(Parent.java:1049)
        at javafx.graphics/javafx.scene.layout.Region.minWidth(Region.java:1500)
        at javafx.graphics/javafx.scene.layout.Region.computeChildMinAreaWidth(Region.java:1898)
        at javafx.graphics/javafx.scene.layout.Region.getMaxAreaWidth(Region.java:2227)
        at javafx.graphics/javafx.scene.layout.Region.computeMaxMinAreaWidth(Region.java:2064)
        at javafx.graphics/javafx.scene.layout.VBox.computeMinWidth(VBox.java:399)
        at javafx.graphics/javafx.scene.Parent.minWidth(Parent.java:1049)
        at javafx.graphics/javafx.scene.layout.Region.minWidth(Region.java:1500)
        at javafx.graphics/javafx.scene.layout.Region.computeChildMinAreaWidth(Region.java:1898)
        at javafx.graphics/javafx.scene.layout.HBox.getAreaWidths(HBox.java:462)
        at javafx.graphics/javafx.scene.layout.HBox.computeContentWidth(HBox.java:549)
        at javafx.graphics/javafx.scene.layout.HBox.computeMinWidth(HBox.java:409)
        at javafx.graphics/javafx.scene.Parent.minWidth(Parent.java:1049)
        at javafx.graphics/javafx.scene.layout.Region.minWidth(Region.java:1500)
        at javafx.graphics/javafx.scene.layout.Region.computeChildMinAreaWidth(Region.java:1898)
        at javafx.graphics/javafx.scene.layout.Region.getMaxAreaWidth(Region.java:2227)
        at javafx.graphics/javafx.scene.layout.Region.computeMaxMinAreaWidth(Region.java:2064)
        at javafx.graphics/javafx.scene.layout.VBox.computeMinWidth(VBox.java:399)
        at javafx.graphics/javafx.scene.Parent.minWidth(Parent.java:1049)
        at javafx.graphics/javafx.scene.layout.Region.minWidth(Region.java:1500)
        at javafx.graphics/javafx.scene.layout.Region.computeChildMinAreaWidth(Region.java:1898)
        at javafx.graphics/javafx.scene.layout.HBox.getAreaWidths(HBox.java:462)
        at javafx.graphics/javafx.scene.layout.HBox.computeContentWidth(HBox.java:549)
        at javafx.graphics/javafx.scene.layout.HBox.computeMinWidth(HBox.java:409)
        at javafx.graphics/javafx.scene.Parent.minWidth(Parent.java:1049)
        at javafx.graphics/javafx.scene.layout.Region.minWidth(Region.java:1500)
        at javafx.graphics/javafx.scene.layout.Region.computeChildPrefAreaWidth(Region.java:1959)
        at javafx.graphics/javafx.scene.layout.Region.getMaxAreaWidth(Region.java:2228)
        at javafx.graphics/javafx.scene.layout.Region.computeMaxPrefAreaWidth(Region.java:2092)
        at javafx.graphics/javafx.scene.layout.VBox.computePrefWidth(VBox.java:420)
        at javafx.graphics/javafx.scene.Parent.prefWidth(Parent.java:1021)
        at javafx.graphics/javafx.scene.layout.Region.prefWidth(Region.java:1536)
        at javafx.graphics/javafx.scene.Node.autosize(Node.java:3138)
        at javafx.graphics/javafx.scene.Parent.layoutChildren(Parent.java:1239)
        at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1208)
        at javafx.graphics/javafx.scene.Scene.doLayoutPass(Scene.java:594)
        at javafx.graphics/javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2600)
        at javafx.graphics/com.sun.javafx.tk.Toolkit.lambda$runPulse$2(Toolkit.java:401)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
        at javafx.graphics/com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:400)
        at javafx.graphics/com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:430)
        at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:592)
        at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:572)
        at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulseFromQueue(QuantumToolkit.java:565)
        at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$11(QuantumToolkit.java:352)
        at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
        at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$10(GtkApplication.java:263)
        at java.base/java.lang.Thread.run(Thread.java:1583)


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