java.lang.NullPointerException

GitHub | hifall | 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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  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 com.studio.mymodule.managers.socket.SocketManager.connectToSocket()
    2. com.studio.mymodule
      SocketManager$2.call
      1. com.studio.mymodule.managers.socket.SocketManager.connectToSocket(SocketManager.java:73)
      2. com.studio.mymodule.managers.socket.SocketManager.tryToReconnect(SocketManager.java:361)
      3. com.studio.mymodule.ChatActivity$32.onSocketFailed(ChatActivity.java:1378)
      4. com.studio.mymodule.managers.socket.SocketManager.socketFailedDialog(SocketManager.java:318)
      5. com.studio.mymodule.managers.socket.SocketManager$2.call(SocketManager.java:118)
      5 frames
    3. io.socket.emitter
      Emitter.emit
      1. io.socket.emitter.Emitter.emit(Emitter.java:117)
      1 frame
    4. io.socket.client
      Socket$5.run
      1. io.socket.client.Socket.access$601(Socket.java:19)
      2. io.socket.client.Socket$5.run(Socket.java:177)
      2 frames
    5. io.socket.thread
      EventThread.exec
      1. io.socket.thread.EventThread.exec(EventThread.java:50)
      1 frame
    6. io.socket.client
      Manager$1$3.call
      1. io.socket.client.Socket.emit(Socket.java:173)
      2. io.socket.client.Manager.emitAll(Manager.java:156)
      3. io.socket.client.Manager.access$600(Manager.java:20)
      4. io.socket.client.Manager$1$3.call(Manager.java:286)
      4 frames
    7. io.socket.emitter
      Emitter.emit
      1. io.socket.emitter.Emitter.emit(Emitter.java:117)
      1 frame
    8. io.socket.engineio
      Socket$4.call
      1. io.socket.engineio.client.Socket.onError(Socket.java:765)
      2. io.socket.engineio.client.Socket.access$800(Socket.java:30)
      3. io.socket.engineio.client.Socket$4.call(Socket.java:304)
      3 frames
    9. io.socket.emitter
      Emitter.emit
      1. io.socket.emitter.Emitter.emit(Emitter.java:117)
      1 frame
    10. io.socket.engineio
      PollingXHR$6$1.run
      1. io.socket.engineio.client.Transport.onError(Transport.java:65)
      2. io.socket.engineio.client.transports.PollingXHR.access$100(PollingXHR.java:18)
      3. io.socket.engineio.client.transports.PollingXHR$6$1.run(PollingXHR.java:126)
      3 frames
    11. io.socket.thread
      EventThread$2.run
      1. io.socket.thread.EventThread$2.run(EventThread.java:75)
      1 frame
    12. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
      3. java.lang.Thread.run(Thread.java:841)
      3 frames