java.lang.NullPointerException
   at com.sun.javafx.scene.web.skin.HTMLEditorSkin.setContentEditable(HTMLEditorSkin.java:1040)
   at com.sun.javafx.scene.web.skin.HTMLEditorSkin.lambda$null$9(HTMLEditorSkin.java:440)
   at com.sun.javafx.scene.web.skin.HTMLEditorSkin$$Lambda$214/81692079.run(HTMLEditorSkin.java:0)
   at com.sun.javafx.application.PlatformImpl.lambda$null$164(PlatformImpl.java:292)
   at com.sun.javafx.application.PlatformImpl$$Lambda$71/692999690.run(PlatformImpl.java:0)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at com.sun.javafx.application.PlatformImpl.lambda$runLater$165(PlatformImpl.java:291)
   at com.sun.javafx.application.PlatformImpl$$Lambda$70/1209454826.run(PlatformImpl.java:0)
   at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
   at com.sun.glass.ui.win.WinApplication._runLoop(WinApplication.java:0)
   at com.sun.glass.ui.win.WinApplication.lambda$null$141(WinApplication.java:102)
   at com.sun.glass.ui.win.WinApplication$$Lambda$61/322610539.run(WinApplication.java:0)
   at java.lang.Thread.run(Thread.java:745)