java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
        at java.util.ArrayList.rangeCheck(ArrayList.java:638)
        at java.util.ArrayList.get(ArrayList.java:414)
        at modena.SamplePageHelpers$3.run(SamplePageHelpers.java:279)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:301)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:298)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:298)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
        at com.sun.glass.ui.gtk.GtkApplication.access$200(GtkApplication.java:48)
        at com.sun.glass.ui.gtk.GtkApplication$6$1.run(GtkApplication.java:149)
        at java.lang.Thread.run(Thread.java:744)
Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: The owner node needs to be associated with a window
        at javafx.stage.PopupWindow.show(PopupWindow.java:380)
        at javafx.scene.control.ContextMenu.doShow(ContextMenu.java:288)
        at javafx.scene.control.ContextMenu.show(ContextMenu.java:278)
        at modena.SamplePageHelpers$4.run(SamplePageHelpers.java:307)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:301)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:298)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:298)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
        at com.sun.glass.ui.gtk.GtkApplication.access$200(GtkApplication.java:48)
        at com.sun.glass.ui.gtk.GtkApplication$6$1.run(GtkApplication.java:149)
        at java.lang.Thread.run(Thread.java:744)
Exception in thread "JavaFX Application Thread" java.lang.IllegalArgumentException: The owner node needs to be associated with a window
        at javafx.stage.PopupWindow.show(PopupWindow.java:380)
        at javafx.scene.control.ContextMenu.doShow(ContextMenu.java:288)
        at javafx.scene.control.ContextMenu.show(ContextMenu.java:278)
        at modena.SamplePageHelpers$4.run(SamplePageHelpers.java:307)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:301)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:298)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:298)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
        at com.sun.glass.ui.gtk.GtkApplication.access$200(GtkApplication.java:48)
        at com.sun.glass.ui.gtk.GtkApplication$6$1.run(GtkApplication.java:149)
        at java.lang.Thread.run(Thread.java:744)
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
        at modena.SameHeightTestController$1.run(SameHeightTestController.java:73)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:301)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:298)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:298)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
        at com.sun.glass.ui.gtk.GtkApplication.access$200(GtkApplication.java:48)
        at com.sun.glass.ui.gtk.GtkApplication$6$1.run(GtkApplication.java:149)
        at java.lang.Thread.run(Thread.java:744)
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
        at modena.SimpleWindowPage$1.run(SimpleWindowPage.java:92)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:301)
        at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:298)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:298)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
        at com.sun.glass.ui.gtk.GtkApplication.access$200(GtkApplication.java:48)
        at com.sun.glass.ui.gtk.GtkApplication$6$1.run(GtkApplication.java:149)
        at java.lang.Thread.run(Thread.java:744)