BeagleBoard: LightPlaygrond: exception when click on a link

In LightPlaygrond sample from internal samples.
Exception throwing when clking on link in description of elements.
JavaFX Application Thread uncaught: java.awt.HeadlessException
java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
        at java.awt.Desktop.getDesktop(Desktop.java:142)
        at lightplayground.view.obstaclepanel.ObstacleTab$1.handle(ObstacleTab.java:101)
        at lightplayground.view.obstaclepanel.ObstacleTab$1.handle(ObstacleTab.java:97)
        at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
        at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:113)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:113)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:113)
        at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
        at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
        at javafx.event.Event.fireEvent(Event.java:201)
        at javafx.scene.Node.fireEvent(Node.java:6907)
        at javafx.scene.control.Hyperlink.fire(Hyperlink.java:145)
        at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:193)
        at javafx.scene.control.SkinBase$2.handle(SkinBase.java:122)
        at javafx.scene.control.SkinBase$2.handle(SkinBase.java:115)
        at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
        at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
        at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:113)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:113)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:113)
        at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
        at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
        at javafx.event.Event.fireEvent(Event.java:201)
        at javafx.scene.Scene$MouseHandler.process(Scene.java:3370)
        at javafx.scene.Scene$MouseHandler.process(Scene.java:3210)
        at javafx.scene.Scene$MouseHandler.access$1900(Scene.java:3162)
        at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1569)
        at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2311)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:291)
        at com.sun.glass.ui.View.handleMouseEvent(Unknown Source)
        at com.sun.glass.ui.View.notifyMouse(Unknown Source)
        at com.sun.glass.ui.lens.LensView._notifyMouse(Unknown Source)
        at com.sun.glass.ui.lens.LensApplication$LensMouseEvent.dispatch(Unknown Source)
        at com.sun.glass.ui.lens.LensApplication._runLoop(Unknown Source)
        at com.sun.glass.ui.lens.LensApplication.access$400(Unknown Source)
        at com.sun.glass.ui.lens.LensApplication$4.run(Unknown Source)
        at java.lang.Thread.run(Thread.java:722)