java - JavaFX 11 using Maven throws Exception: "WindowsNativeRunloopThread"

Question

I have been testing JavaFX 11 using Maven and cannot get it to work. I have Open JDK 11 installed and if adding jars to build path from downloadable .zip everything works just fine.

However when I use the recommended POM file from the javafx 11 site I get the following error.

Exception in thread "WindowsNativeRunloopThread" java.lang.NoSuchMethodError: <init>
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.staticScreen_getScreens(Native Method)
    at javafx.graphics/com.sun.glass.ui.Screen.initScreens(Screen.java:412)
    at javafx.graphics/com.sun.glass.ui.Application.lambda$run$1(Application.java:152)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
    at java.base/java.lang.Thread.run(Thread.java:834)
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
    at javafx.graphics/com.sun.prism.d3d.D3DPipeline.getAdapterOrdinal(D3DPipeline.java:205)
    at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.assignScreensAdapters(QuantumToolkit.java:695)
    at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runToolkit(QuantumToolkit.java:313)
    at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.lambda$startup$10(QuantumToolkit.java:258)
    at javafx.graphics/com.sun.glass.ui.Application.lambda$run$1(Application.java:153)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
    at java.base/java.lang.Thread.run(Thread.java:834)

This problem seems to have cropped up once here but none of the solutions in that thread have worked.

Does anyone have suggestions on how to go about diagnosing the problem? I am running in Eclipse 4.9 and have attached a screenshot of two projects which are identical other than one uses maven and the other has jars added to the build path. Any help much appreciated.

Answer 1

The solution to this problem is in comments (kleopatra). For quick reference you need to add

-Djava.library.path=C:/anywhere-outside-eclipse 

(I tested using -Djava.library.path=C:/) to the VM arguments. This means javafx 11 works with Maven inside eclipse.