java.lang.NullPointerException

GitHub | LevelX2 | 6 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
  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 | 2 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 mage.game.Table.toProto()
    2. mage.game
      Table.toProto
      1. mage.game.Table.toProto(Table.java:317)
      1 frame
    3. mage.server.record
      TableRecorderImpl.record
      1. mage.server.record.TableRecorderImpl.record(TableRecorderImpl.java:18)
      1 frame
    4. mage.game
      Table.endTournament
      1. mage.game.Table.setState(Table.java:246)
      2. mage.game.Table.endTournament(Table.java:127)
      2 frames
    5. mage.server
      TableManager.endTournament
      1. mage.server.TableController.endTournament(TableController.java:685)
      2. mage.server.TableManager.endTournament(TableManager.java:304)
      2 frames
    6. mage.server.tournament
      TournamentController$1.event
      1. mage.server.tournament.TournamentController.endTournament(TournamentController.java:239)
      2. mage.server.tournament.TournamentController.access$600(TournamentController.java:69)
      3. mage.server.tournament.TournamentController$1.event(TournamentController.java:108)
      4. mage.server.tournament.TournamentController$1.event(TournamentController.java:90)
      4 frames
    7. mage.game.events
      TableEventSource.fireTableEvent
      1. mage.game.events.EventDispatcher.fireEvent(EventDispatcher.java:56)
      2. mage.game.events.TableEventSource.fireTableEvent(TableEventSource.java:62)
      2 frames
    8. mage.game.tournament
      TournamentImpl.construct
      1. mage.game.tournament.TournamentImpl.construct(TournamentImpl.java:396)
      1 frame
    9. mage.tournament
      BoosterDraftSwissTournament.nextStep
      1. mage.tournament.BoosterDraftSwissTournament.nextStep(BoosterDraftSwissTournament.java:76)
      1 frame
    10. mage.server
      TableManager.endDraft
      1. mage.server.TableController.endDraft(TableController.java:840)
      2. mage.server.TableManager.endDraft(TableManager.java:298)
      2 frames
    11. mage.server.draft
      DraftController.abortDraft
      1. mage.server.draft.DraftController.endDraft(DraftController.java:200)
      2. mage.server.draft.DraftController.abortDraft(DraftController.java:264)
      2 frames
    12. mage.server.tournament
      TournamentManager.quit
      1. mage.server.tournament.TournamentController.abortDraftTournament(TournamentController.java:433)
      2. mage.server.tournament.TournamentController.quit(TournamentController.java:363)
      3. mage.server.tournament.TournamentManager.quit(TournamentManager.java:68)
      3 frames
    13. mage.server
      UserManager$2.run
      1. mage.server.User.remove(User.java:381)
      2. mage.server.UserManager$2.run(UserManager.java:145)
      2 frames
    14. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames