java.lang.NullPointerException

GitHub | aymen083 | 1 year ago
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  1. 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
  2. 0

    J2ME (Java) - Null Pointer Exception caught in Display Class

    Stack Overflow | 6 years ago | Tom
    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
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    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
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    NullPointerException in MIDlet with left soft key

    Stack Overflow | 6 years ago | berry120
    java.lang.NullPointerException: 0 at javax.microedition.lcdui.Display$ChameleonTunnel.callItemListener(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.processCommand(), bci=57 at com.sun.midp.chameleon.layers.SoftButtonLayer.soft1(), bci=37 at com.sun.midp.chameleon.layers.SoftButtonLayer.keyInput(), bci=36 at com.sun.midp.chameleon.CWindow.keyInput(), bci=38 at javax.microedition.lcdui.Display$DisplayEventConsumerImpl.handleKeyEvent(), bci=17 at com.sun.midp.lcdui.DisplayEventListener.process(), bci=277 at com.sun.midp.events.EventQueue.run(), bci=179

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.jfoenix.skins.JFXTextFieldSkin.focus()
    2. com.jfoenix.skins
      JFXTextFieldSkin$$Lambda$7.changed
      1. com.jfoenix.skins.JFXTextFieldSkin.focus(JFXTextFieldSkin.java:378)
      2. com.jfoenix.skins.JFXTextFieldSkin.lambda$new$338(JFXTextFieldSkin.java:207)
      3. com.jfoenix.skins.JFXTextFieldSkin.access$lambda$6(JFXTextFieldSkin.java)
      4. com.jfoenix.skins.JFXTextFieldSkin$$Lambda$7.changed(Unknown Source)
      4 frames
    3. com.sun.javafx
      ExpressionHelper.fireValueChangedEvent
      1. com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:361)
      2. com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:81)
      2 frames
    4. javafx.beans.property
      ReadOnlyBooleanPropertyBase.fireValueChangedEvent
      1. javafx.beans.property.ReadOnlyBooleanPropertyBase.fireValueChangedEvent(ReadOnlyBooleanPropertyBase.java:72)
      1 frame
    5. javafx.scene
      Scene$13.invalidated
      1. javafx.scene.Node$FocusedProperty.notifyListeners(Node.java:7718)
      2. javafx.scene.Scene$13.invalidated(Scene.java:2080)
      2 frames
    6. javafx.beans.property
      ObjectPropertyBase.set
      1. javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:111)
      2. javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:146)
      2 frames
    7. javafx.scene
      Node.requestFocus
      1. javafx.scene.Scene$KeyHandler.setFocusOwner(Scene.java:3924)
      2. javafx.scene.Scene$KeyHandler.requestFocus(Scene.java:3971)
      3. javafx.scene.Scene$KeyHandler.access$1900(Scene.java:3910)
      4. javafx.scene.Scene.requestFocus(Scene.java:2044)
      5. javafx.scene.Node.requestFocus(Node.java:7879)
      5 frames
    8. com.sun.javafx
      TextFieldBehavior.mousePressed
      1. com.sun.javafx.scene.control.behavior.TextFieldBehavior.mousePressed(TextFieldBehavior.java:248)
      1 frame
    9. FXSampler
      BehaviorSkinBase$1.handle
      1. com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:95)
      2. com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
      2 frames
    10. com.sun.javafx
      EventUtil.fireEvent
      1. com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
      2. com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
      3. com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
      4. com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
      5. com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
      6. com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
      7. com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
      8. com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
      9. com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
      10. com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
      11. com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
      12. com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
      13. com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
      14. com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
      15. com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
      15 frames
    11. javafx.event
      Event.fireEvent
      1. javafx.event.Event.fireEvent(Event.java:198)
      1 frame
    12. javafx.scene
      Scene$ScenePeerListener.mouseEvent
      1. javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
      2. javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
      3. javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
      4. javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
      4 frames
    13. com.sun.javafx
      GlassViewEventHandler$MouseEventNotification.run
      1. com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:352)
      2. com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:275)
      2 frames
    14. Java RT
      AccessController.doPrivileged
      1. java.security.AccessController.doPrivileged(Native Method)
      1 frame
    15. com.sun.javafx
      GlassViewEventHandler.handleMouseEvent
      1. com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:388)
      2. com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
      3. com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:387)
      3 frames
    16. com.sun.glass
      GtkApplication.lambda$null$49
      1. com.sun.glass.ui.View.handleMouseEvent(View.java:555)
      2. com.sun.glass.ui.View.notifyMouse(View.java:937)
      3. com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
      4. com.sun.glass.ui.gtk.GtkApplication.lambda$null$49(GtkApplication.java:139)
      4 frames
    17. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame