java.lang.NullPointerException

ode-dev | Fernando Lozano | 10 years 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
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  3. 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
  4. 0

    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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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.axis2.engine.AxisEngine.extractFaultInformationFromMessageContext()
    2. org.apache.axis2
      AxisEngine.createFaultMessageContext
      1. org.apache.axis2.engine.AxisEngine.extractFaultInformationFromMessageContext(AxisEngine.java:353)
      2. org.apache.axis2.engine.AxisEngine.createFaultMessageContext(AxisEngine.java:249)
      2 frames
    3. Apache Axis2 - Transport - HTTP
      AxisServlet.doPost
      1. org.apache.axis2.transport.http.AxisServlet.handleFault(AxisServlet.java:317)
      2. org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:277)
      2 frames
    4. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
      2. javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
      2 frames
    5. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      2 frames
    6. JBoss Application Server Tomcat
      ReplyHeaderFilter.doFilter
      1. org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
      1 frame
    7. Glassfish Core
      StandardContextValve.invoke
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
      4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
      4 frames
    8. JBoss Application Server Tomcat
      JaccContextValve.invoke
      1. org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
      2. org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
      2 frames
    9. Glassfish Core
      ErrorReportValve.invoke
      1. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
      2. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
      2 frames
    10. JBoss Application Server Tomcat
      CachedConnectionValve.invoke
      1. org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
      1 frame
    11. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      2. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
      2 frames
    12. Grizzly HTTP
      JIoEndpoint$Worker.run
      1. org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
      2. org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
      3. org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
      3 frames
    13. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:595)
      1 frame