java.lang.NullPointerException: null

mobile-open.com | 8 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 | 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

      null

      at hprose.server.HproseService.getErrorMessage()
    2. hprose.server
      HproseHttpService1.onTimeout
      1. hprose.server.HproseService.getErrorMessage(HproseService.java:512)
      2. hprose.server.HproseService.sendError(HproseService.java:522)
      3. hprose.server.HproseHttpService1.onTimeout(HproseHttpService.java:208)
      3 frames
    3. Glassfish Core
      CoyoteAdapter.asyncDispatch
      1. org.apache.catalina.core.AsyncListenerWrapper.fireOnTimeout(AsyncListenerWrapper.java:40)
      2. org.apache.catalina.core.AsyncContextImpl.timeout(AsyncContextImpl.java:155)
      3. org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(CoyoteAdapter.java:292)
      3 frames
    4. Grizzly HTTP
      NioEndpointSocketProcessor.run
      1. org.apache.coyote.http11.AbstractHttp11Processor.asyncDispatch(AbstractHttp11Processor.java:1715)
      2. org.apache.coyote.AbstractProtocolAbstractConnectionHandler.process(AbstractProtocol.java:652)
      3. org.apache.tomcat.util.net.NioEndpointSocketProcessor.doRun(NioEndpoint.java:1500)
      4. org.apache.tomcat.util.net.NioEndpointSocketProcessor.run(NioEndpoint.java:1456)
      4 frames
    5. Java RT
      ThreadPoolExecutorWorker.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:617)
      2 frames
    6. Tomcat Util
      TaskThreadWrappingRunnable.run
      1. org.apache.tomcat.util.threads.TaskThreadWrappingRunnable.run(TaskThread.java:61)
      1 frame
    7. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame