java.lang.NullPointerException: Root cannot be null

  1. 0

    Javafx exception on startup

    GitHub | 1 year ago | TPolzer
    java.lang.NullPointerException: Root cannot be null
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  3. 0

    Failing on JavaFxUtils connectActions() when content of Scrollpane is not defined.

    GitHub | 1 year ago | sleonidy
    java.lang.NullPointerException: Argument 'root' must not be null
  4. 0

    NPE at LocalFileSystem.instance.findFileByIoFile(((GitRepositoryLocation) location).root)

    GitHub | 3 years ago | dkandalov
    java.lang.NullPointerException: Cannot get property 'root' on null object

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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