java.lang.NullPointerException

tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.

Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at main.Controller$ColoredCell.updateItem()
  2. main
    Controller$ColoredCell.updateItem
    1. main.Controller$ColoredCell.updateItem(Controller.java:88)
    2. main.Controller$ColoredCell.updateItem(Controller.java:83)
    2 frames
  3. FXSampler
    ListCell$4.invalidated
    1. javafx.scene.control.ListCell.updateItem(ListCell.java:480)
    2. javafx.scene.control.ListCell.access$300(ListCell.java:72)
    3. javafx.scene.control.ListCell$4.invalidated(ListCell.java:299)
    3 frames
  4. javafx.beans.property
    ObjectPropertyBase.set
    1. javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:111)
    2. javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:146)
    2 frames
  5. FXSampler
    VirtualFlow.layoutChildren
    1. javafx.scene.control.ListCell.setListView(ListCell.java:305)
    2. javafx.scene.control.ListCell.updateListView(ListCell.java:494)
    3. com.sun.javafx.scene.control.skin.ListViewSkin.createCell(ListViewSkin.java:292)
    4. com.sun.javafx.scene.control.skin.ListViewSkin.lambda$new$366(ListViewSkin.java:99)
    5. com.sun.javafx.scene.control.skin.VirtualFlow.getCell(VirtualFlow.java:1777)
    6. com.sun.javafx.scene.control.skin.VirtualFlow.getCellLength(VirtualFlow.java:1879)
    7. com.sun.javafx.scene.control.skin.VirtualFlow.computeViewportOffset(VirtualFlow.java:2528)
    8. com.sun.javafx.scene.control.skin.VirtualFlow.layoutChildren(VirtualFlow.java:1189)
    8 frames
  6. javafx.scene
    Scene$ScenePulseListener.pulse
    1. javafx.scene.Parent.layout(Parent.java:1087)
    2. javafx.scene.Parent.layout(Parent.java:1093)
    3. javafx.scene.Parent.layout(Parent.java:1093)
    4. javafx.scene.Parent.layout(Parent.java:1093)
    5. javafx.scene.Scene.doLayoutPass(Scene.java:552)
    6. javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2397)
    6 frames
  7. com.sun.javafx
    Toolkit.lambda$runPulse$30
    1. com.sun.javafx.tk.Toolkit.lambda$runPulse$30(Toolkit.java:355)
    1 frame
  8. Java RT
    AccessController.doPrivileged
    1. java.security.AccessController.doPrivileged(Native Method)
    1 frame
  9. com.sun.javafx
    QuantumToolkit.lambda$runToolkit$404
    1. com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:354)
    2. com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:381)
    3. com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:510)
    4. com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490)
    5. com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$404(QuantumToolkit.java:319)
    5 frames
  10. com.sun.glass
    GtkApplication.lambda$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
  11. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:745)
    1 frame