The attached JavaFX program runs correctly on Java 8 when launched from the command line, or run via the NetBeans or Eclipse IDEs. However, when run from the IntelliJ IDE, the following exception occurs:

Exception in thread "main" java.lang.ExceptionInInitializerError
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:259)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:113)
Caused by: java.lang.IllegalStateException: Not on FX application thread; currentThread = main
    at com.sun.javafx.tk.Toolkit.checkFxUserThread(Toolkit.java:210)
    at com.sun.javafx.tk.quantum.QuantumToolkit.checkFxUserThread(QuantumToolkit.java:396)
    at javafx.scene.Scene.<init>(Scene.java:318)
    at javafx.scene.Scene.<init>(Scene.java:207)
    at TestStaticScene.<clinit>(TestStaticScene.java:13)
    ... 3 more