java.lang.NullPointerException

coderanch.com | 9 months ago
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    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

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.catalina.connector.http.HttpResponseStream.checkHead()
    2. org.apache.catalina
      HttpResponseImpl.createOutputStream
      1. org.apache.catalina.connector.http.HttpResponseStream.checkHead(HttpResponseStream.java:253)
      2. org.apache.catalina.connector.http.HttpResponseStream.<init>(HttpResponseStream.java:104)
      3. org.apache.catalina.connector.http.HttpResponseImpl.createOutputStream(HttpResponseImpl.java:220)
      3 frames
    3. Glassfish Core
      HttpResponseBase.finishResponse
      1. org.apache.catalina.connector.ResponseBase.getOutputStream(ResponseBase.java:725)
      2. org.apache.catalina.connector.ResponseBase.finishResponse(ResponseBase.java:469)
      3. org.apache.catalina.connector.HttpResponseBase.finishResponse(HttpResponseBase.java:236)
      3 frames
    4. org.apache.catalina
      HttpProcessor.run
      1. org.apache.catalina.connector.http.HttpResponseImpl.finishResponse(HttpResponseImpl.java:288)
      2. org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1039)
      3. org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107)
      3 frames
    5. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:479)
      1 frame