java.lang.NullPointerException

GitHub | playzhangzlm | 9 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 | 3 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 io.mycat.server.handler.ServerPrepareHandler.prepareStmtBindValue()
    2. io.mycat.server
      ServerPrepareHandler.execute
      1. io.mycat.server.handler.ServerPrepareHandler.prepareStmtBindValue(ServerPrepareHandler.java:187)
      2. io.mycat.server.handler.ServerPrepareHandler.execute(ServerPrepareHandler.java:93)
      2 frames
    3. io.mycat.net
      NIOReactor$RW.run
      1. io.mycat.net.FrontendConnection.stmtExecute(FrontendConnection.java:370)
      2. io.mycat.net.handler.FrontendCommandHandler.handle(FrontendCommandHandler.java:91)
      3. io.mycat.net.FrontendConnection.rawHandle(FrontendConnection.java:462)
      4. io.mycat.net.FrontendConnection.handle(FrontendConnection.java:444)
      5. io.mycat.net.AbstractConnection.onReadData(AbstractConnection.java:321)
      6. io.mycat.net.NIOSocketWR.asynRead(NIOSocketWR.java:190)
      7. io.mycat.net.AbstractConnection.asynRead(AbstractConnection.java:273)
      8. io.mycat.net.NIOReactor$RW.run(NIOReactor.java:102)
      8 frames
    4. Java RT
      Thread.run
      1. java.lang.Thread.run(Unknown Source)
      1 frame