java.lang.NullPointerException: Root cannot be null

Stack Overflow | Nathaël Noguès | 10 months ago
tip
Do you know that we can give you better hits? Get more relevant results from Samebug’s stack trace search.
  1. Speed up your debug routine!

    Automated exception search integrated into your IDE

  2. 0

    Javafx exception on startup

    GitHub | 2 years ago | TPolzer
    java.lang.NullPointerException: Root cannot be null
  3. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 6 years ago | Pallinder
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callScreenListener(), bci=46 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=74 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179

  1. Gatgeagent 1 times, last 6 months ago
4 unregistered visitors
Not finding the right solution?
Take a tour to get the most out of Samebug.

Tired of useless tips?

Automated exception search integrated into your IDE

Root Cause Analysis

  1. java.lang.NullPointerException

    Root cannot be null

    at javafx.scene.Scene.<init>()
  2. javafx.scene
    Scene.<init>
    1. javafx.scene.Scene.<init>(Scene.java:336)
    2. javafx.scene.Scene.<init>(Scene.java:223)
    2 frames
  3. fr.project.gui
    Main.start
    1. fr.project.gui.Main.start(Main.java:44)
    1 frame
  4. com.sun.javafx
    PlatformImpl.lambda$null$173
    1. com.sun.javafx.applet.FXApplet2$2.run(FXApplet2.java:134)
    2. com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
    2 frames
  5. Java RT
    AccessController.doPrivileged
    1. java.security.AccessController.doPrivileged(Native Method)
    1 frame
  6. com.sun.javafx
    PlatformImpl.lambda$runLater$174
    1. com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
    1 frame
  7. com.sun.glass
    GtkApplication.lambda$null$49
    1. com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
    2. com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
    3. com.sun.glass.ui.gtk.GtkApplication.lambda$null$49(GtkApplication.java:139)
    3 frames
  8. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:745)
    1 frame