java.lang.NullPointerException

GitHub | EGjoni | 7 months 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
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  3. 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
  4. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 2 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at processing.javafx.PGraphicsFX2D.fillFromCalc()
    2. processing.javafx
      PGraphicsFX2D.fillFromCalc
      1. processing.javafx.PGraphicsFX2D.fillFromCalc(PGraphicsFX2D.java:1951)
      1 frame
    3. processing.core
      PGraphics.checkSettings
      1. processing.core.PGraphics.fill(PGraphics.java:6669)
      2. processing.core.PGraphics.defaultSettings(PGraphics.java:963)
      3. processing.core.PGraphics.checkSettings(PGraphics.java:938)
      3 frames
    4. processing.javafx
      PGraphicsFX2D.beginDraw
      1. processing.javafx.PGraphicsFX2D.beginDraw(PGraphicsFX2D.java:147)
      1 frame
    5. Unknown
      sketch_160827a.draw
      1. sketch_160827a.draw(sketch_160827a.java:28)
      1 frame
    6. processing.core
      PApplet.handleDraw
      1. processing.core.PApplet.handleDraw(PApplet.java:2412)
      1 frame
    7. processing.javafx
      PSurfaceFX$1.handle
      1. processing.javafx.PSurfaceFX$1.handle(PSurfaceFX.java:83)
      2. processing.javafx.PSurfaceFX$1.handle(PSurfaceFX.java:1)
      2 frames
    8. com.sun.scenario
      TimelineClipCore.playTo
      1. com.sun.scenario.animation.shared.TimelineClipCore.visitKeyFrame(TimelineClipCore.java:239)
      2. com.sun.scenario.animation.shared.TimelineClipCore.playTo(TimelineClipCore.java:197)
      2 frames
    9. javafx.animation
      AnimationAccessorImpl.playTo
      1. javafx.animation.Timeline.impl_playTo(Timeline.java:176)
      2. javafx.animation.AnimationAccessorImpl.playTo(AnimationAccessorImpl.java:39)
      2 frames
    10. com.sun.scenario
      InfiniteClipEnvelope.timePulse
      1. com.sun.scenario.animation.shared.InfiniteClipEnvelope.timePulse(InfiniteClipEnvelope.java:110)
      1 frame
    11. javafx.animation
      Animation$1.lambda$timePulse$25
      1. javafx.animation.Animation.impl_timePulse(Animation.java:1102)
      2. javafx.animation.Animation$1.lambda$timePulse$25(Animation.java:186)
      2 frames
    12. Java RT
      AccessController.doPrivileged
      1. java.security.AccessController.doPrivileged(Native Method)
      1 frame
    13. javafx.animation
      Animation$1.timePulse
      1. javafx.animation.Animation$1.timePulse(Animation.java:185)
      1 frame
    14. Java Swing/2D Scene Graph
      AbstractMasterTimer$MainLoop.run
      1. com.sun.scenario.animation.AbstractMasterTimer.timePulseImpl(AbstractMasterTimer.java:344)
      2. com.sun.scenario.animation.AbstractMasterTimer$MainLoop.run(AbstractMasterTimer.java:267)
      2 frames
    15. com.sun.javafx
      QuantumToolkit.lambda$runToolkit$404
      1. com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:506)
      2. com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490)
      3. com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$404(QuantumToolkit.java:319)
      3 frames
    16. com.sun.glass
      WinApplication.lambda$null$148
      1. com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
      2. com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
      3. com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
      3 frames
    17. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame