java.lang.NullPointerException

GitHub | samczsun | 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
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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 | 3 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 org.fife.ui.rsyntaxtextarea.RSyntaxUtilities.getMatchingBracketPosition()
    2. rsyntaxtextarea
      RSyntaxTextArea.fireCaretUpdate
      1. org.fife.ui.rsyntaxtextarea.RSyntaxUtilities.getMatchingBracketPosition(RSyntaxUtilities.java:462)
      2. org.fife.ui.rsyntaxtextarea.RSyntaxTextArea.doBracketMatching(RSyntaxTextArea.java:766)
      3. org.fife.ui.rsyntaxtextarea.RSyntaxTextArea.fireCaretUpdate(RSyntaxTextArea.java:812)
      3 frames
    3. Java RT
      NavigationFilter.moveDot
      1. javax.swing.text.JTextComponent$MutableCaretEvent.fire(JTextComponent.java:4394)
      2. javax.swing.text.JTextComponent$MutableCaretEvent.stateChanged(JTextComponent.java:4416)
      3. javax.swing.text.DefaultCaret.fireStateChanged(DefaultCaret.java:802)
      4. javax.swing.text.DefaultCaret.changeCaretPosition(DefaultCaret.java:1274)
      5. javax.swing.text.DefaultCaret.handleMoveDot(DefaultCaret.java:1101)
      6. javax.swing.text.DefaultCaret$DefaultFilterBypass.moveDot(DefaultCaret.java:1917)
      7. javax.swing.text.NavigationFilter.moveDot(NavigationFilter.java:79)
      7 frames
    4. rsyntaxtextarea
      ConfigurableCaret$FoldAwareNavigationFilter.moveDot
      1. org.fife.ui.rtextarea.ConfigurableCaret$FoldAwareNavigationFilter.moveDot(ConfigurableCaret.java:676)
      1 frame
    5. Java RT
      JTextComponent.setSelectionEnd
      1. javax.swing.text.DefaultCaret.moveDot(DefaultCaret.java:1092)
      2. javax.swing.text.DefaultCaret.moveDot(DefaultCaret.java:1063)
      3. javax.swing.text.JTextComponent.moveCaretPosition(JTextComponent.java:1502)
      4. javax.swing.text.JTextComponent.select(JTextComponent.java:1874)
      5. javax.swing.text.JTextComponent.setSelectionEnd(JTextComponent.java:1825)
      5 frames
    6. rsyntaxtextarea
      SearchEngine.find
      1. org.fife.ui.rsyntaxtextarea.RSyntaxUtilities.selectAndPossiblyCenter(RSyntaxUtilities.java:1370)
      2. org.fife.ui.rtextarea.SearchEngine.find(SearchEngine.java:114)
      2 frames
    7. com.samczsun.helios
      SearchPopup$3.keyReleased
      1. com.samczsun.helios.gui.ClassManager.search(ClassManager.java:341)
      2. com.samczsun.helios.gui.SearchPopup$3.keyReleased(SearchPopup.java:73)
      2 frames
    8. RWT
      Display.windowProc
      1. org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
      2. org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
      3. org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
      4. org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
      5. org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
      6. org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
      7. org.eclipse.swt.widgets.Widget.sendKeyEvent(Unknown Source)
      8. org.eclipse.swt.widgets.Text.sendKeyEvent(Unknown Source)
      9. org.eclipse.swt.widgets.Widget.sendKeyEvent(Unknown Source)
      10. org.eclipse.swt.widgets.Widget.wmKeyUp(Unknown Source)
      11. org.eclipse.swt.widgets.Control.WM_KEYUP(Unknown Source)
      12. org.eclipse.swt.widgets.Control.windowProc(Unknown Source)
      13. org.eclipse.swt.widgets.Text.windowProc(Unknown Source)
      14. org.eclipse.swt.widgets.Display.windowProc(Unknown Source)
      14 frames
    9. org.eclipse.swt
      OS.DispatchMessage
      1. org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
      2. org.eclipse.swt.internal.win32.OS.DispatchMessage(Unknown Source)
      2 frames
    10. RWT
      Display.readAndDispatch
      1. org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
      1 frame
    11. com.samczsun.helios
      DisplayPumper.run
      1. com.samczsun.helios.bootloader.DisplayPumper.run(DisplayPumper.java:41)
      1 frame
    12. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame