java.lang.NullPointerException

Oracle Community | 3004 | 1 decade 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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  4. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 2 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
  5. 0

    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 kodo.runtime.StateManagerImpl.providedBooleanField()
    2. kodo.runtime
      StateManagerImpl.providedBooleanField
      1. kodo.runtime.StateManagerImpl.providedBooleanField(StateManagerImpl.java:1867)
      1 frame
    3. org.uscentral.cnecs
      CoreProcessorInfo.jdoProvideField
      1. org.uscentral.cnecs.businessobject.CoreProcessorInfo.jdoProvideField(CoreProcessorInfo.java)
      1 frame
    4. kodo.runtime
      PersistenceManagerImpl.refresh
      1. kodo.runtime.StateManagerImpl.provideField(StateManagerImpl.java:3059)
      2. kodo.runtime.StateManagerImpl.unproxyFields(StateManagerImpl.java:2802)
      3. kodo.runtime.StateManagerImpl.clearFields(StateManagerImpl.java:2671)
      4. kodo.runtime.StateManagerImpl.beforeRefresh(StateManagerImpl.java:965)
      5. kodo.runtime.PersistenceManagerImpl.refresh(PersistenceManagerImpl.java:2522)
      5 frames
    5. org.uscentral.cnecs
      CoreDataUpdateMessage.run
      1. org.uscentral.cnecs.dataaccess.CNECSAccess.getCoreProcessorInfo(CNECSAccess.java:100)
      2. org.uscentral.cnecs.update.AbstractCoreDataUpdate.getCoreProcessorInfo(AbstractCoreDataUpdate.java:72)
      3. org.uscentral.cnecs.update.CoreDataUpdateMessage.run(CoreDataUpdateMessage.java:112)
      3 frames
    6. Dough Lea's util.concurrent package
      QueuedExecutor$RunLoop.run
      1. EDU.oswego.cs.dl.util.concurrent.QueuedExecutor$RunLoop.run(UnknownSource)
      1 frame
    7. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:536)
      1 frame