java.lang.NullPointerException

Oracle Community | Jon_Male | 4 years ago
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  1. 0

    Getting a nullpointer exception when switching displayables in J2ME

    Stack Overflow | 7 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 oracle.dbtools.worksheet.sqlhistory.db.HistoryDB2.getRowFor()
    2. oracle.dbtools.worksheet
      StatementRunnerResultsPanel$4.taskFinished
      1. oracle.dbtools.worksheet.sqlhistory.db.HistoryDB2.getRowFor(HistoryDB2.java:43)
      2. oracle.dbtools.worksheet.sqlhistory.SqlEditorHistory.saveSql(SqlEditorHistory.java:85)
      3. oracle.dbtools.worksheet.StatementRunnerResultsPanel$4.taskFinished(StatementRunnerResultsPanel.java:287)
      3 frames
    3. oracle.dbtools.raptor
      RaptorTaskManager$RaptorFutureTask.done
      1. oracle.dbtools.raptor.backgroundTask.RaptorTaskAdapter.stateChanged(RaptorTaskAdapter.java:95)
      2. oracle.dbtools.raptor.backgroundTask.RaptorTaskDescriptor.notifyListener(RaptorTaskDescriptor.java:143)
      3. oracle.dbtools.raptor.backgroundTask.RaptorTaskDescriptor.setStatus(RaptorTaskDescriptor.java:370)
      4. oracle.dbtools.raptor.backgroundTask.RaptorTaskDescriptor.setStatus(RaptorTaskDescriptor.java:352)
      5. oracle.dbtools.raptor.backgroundTask.RaptorTask.setStatus(RaptorTask.java:257)
      6. oracle.dbtools.raptor.backgroundTask.RaptorTaskManager$RaptorFutureTask.done(RaptorTaskManager.java:479)
      6 frames
    4. Java RT
      FutureTask.run
      1. java.util.concurrent.FutureTask$Sync.innerSet(FutureTask.java:251)
      2. java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
      3. java.util.concurrent.FutureTask.run(FutureTask.java:138)
      3 frames
    5. oracle.dbtools.raptor
      RaptorTaskManager$RaptorFutureTask.run
      1. oracle.dbtools.raptor.backgroundTask.RaptorTaskManager$RaptorFutureTask.run(RaptorTaskManager.java:500)
      1 frame
    6. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
      2. java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
      3. java.util.concurrent.FutureTask.run(FutureTask.java:138)
      4. java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
      5. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
      6. java.lang.Thread.run(Thread.java:619)
      6 frames