Exception in thread "main" java.lang.reflect.InvocationTargetException
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.UnsupportedOperationException: Unable to open DISPLAY
      at com.sun.glass.ui.gtk.GtkApplication.<init>(GtkApplication.java:68)
      at com.sun.glass.ui.gtk.GtkPlatformFactory.createApplication(GtkPlatformFactory.java:41)
      at com.sun.glass.ui.Application.run(Application.java:146)
      at com.sun.javafx.tk.quantum.QuantumToolkit.startup(QuantumToolkit.java:257)
      at com.sun.javafx.application.PlatformImpl.startup(PlatformImpl.java:211)
      at com.sun.javafx.application.LauncherImpl.startToolkit(LauncherImpl.java:675)
      at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:337)
      at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
      ... 5 more