InitializeJavaFXLaunch1Test and InitializeJavaFXLaunch2Test fail intermittently with initializationError on Ubuntu 24.04 system with Xorg Windowing system. These tests never fail when wayland is used on same system.

Failure output:

Exception in thread "Thread-6" java.lang.NullPointerException: Cannot invoke "com.sun.glass.ui.Timer.stop()" because "this.pulseTimer" is null
        at javafx.graphics@25-internal/com.sun.javafx.tk.quantum.QuantumToolkit.dispose(QuantumToolkit.java:849)
        at javafx.graphics@25-internal/com.sun.javafx.tk.quantum.QuantumToolkit$1.lambda$run$0(QuantumToolkit.java:248)
        at java.base/java.lang.Thread.run(Thread.java:1575)

> Task :systemTests:test

InitializeJavaFXLaunch1Test > initializationError FAILED
    org.opentest4j.AssertionFailedError: expected: <true> but was: <false>
        at app//test.com.sun.javafx.application.InitializeJavaFXLaunchBase.initializeApplicationLaunch(InitializeJavaFXLaunchBase.java:48)
        at app//test.com.sun.javafx.application.InitializeJavaFXLaunch1Test.initialize(InitializeJavaFXLaunch1Test.java:37)

Exception in thread "Glass/Prism Shutdown Hook" java.lang.InternalError: dispose timed out
        at javafx.graphics@25-internal/com.sun.javafx.tk.quantum.QuantumToolkit$1.run(QuantumToolkit.java:256)

Fails 2/5 times

Exception in thread "Thread-6" java.lang.NullPointerException: Cannot invoke "com.sun.glass.ui.Timer.stop()" because "this.pulseTimer" is null
    at javafx.graphics@25-internal/com.sun.javafx.tk.quantum.QuantumToolkit.dispose(QuantumToolkit.java:849)
    at javafx.graphics@25-internal/com.sun.javafx.tk.quantum.QuantumToolkit$1.lambda$run$0(QuantumToolkit.java:248)
    at java.base/java.lang.Thread.run(Thread.java:1575)

> Task :systemTests:test

InitializeJavaFXLaunch2Test > initializationError FAILED
    org.opentest4j.AssertionFailedError: expected: <true> but was: <false>
        at app//test.com.sun.javafx.application.InitializeJavaFXLaunchBase.initializeApplicationLaunch(InitializeJavaFXLaunchBase.java:48)
        at app//test.com.sun.javafx.application.InitializeJavaFXLaunch2Test.initialize(InitializeJavaFXLaunch2Test.java:37)

Exception in thread "Glass/Prism Shutdown Hook" java.lang.InternalError: dispose timed out
    at javafx.graphics@25-internal/com.sun.javafx.tk.quantum.QuantumToolkit$1.run(QuantumToolkit.java:256)