java.lang.NullPointerException

Coderanch | Alan Duke | 6 years ago
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  1. 0

    My query is null

    Coderanch | 6 years ago | Alan Duke
    java.lang.NullPointerException
  2. 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
  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
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  5. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
  6. 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 br.com.mosaicodigital.modelo.ListaEscola.findAll()
    2. br.com.mosaicodigital
      MostraEscolaAtiva.getEscolas
      1. br.com.mosaicodigital.modelo.ListaEscola.findAll(ListaEscola.java:43)
      2. br.com.mosaicodigital.controle.MostraEscolaAtiva.getEscolas(MostraEscolaAtiva.java:37)
      2 frames
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      4. java.lang.reflect.Method.invoke(Method.java:597)
      4 frames
    4. EL
      BeanELResolver.getValue
      1. javax.el.BeanELResolver.getValue(BeanELResolver.java:302)
      1 frame
    5. JSF
      DemuxCompositeELResolver.getValue
      1. com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
      2. com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
      2 frames
    6. EL
      ValueExpressionImpl.getValue
      1. com.sun.el.parser.AstValue.getValue(AstValue.java:116)
      2. com.sun.el.parser.AstValue.getValue(AstValue.java:163)
      3. com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:219)
      3 frames
    7. JSF
      TagValueExpression.getValue
      1. com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
      1 frame
    8. JavaEE 7
      UIComponent.visitTree
      1. javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
      2. javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
      3. javax.faces.component.UIData.getValue(UIData.java:731)
      4. javax.faces.component.UIData.getDataModel(UIData.java:1798)
      5. javax.faces.component.UIData.setRowIndexWithoutRowStatePreserved(UIData.java:484)
      6. javax.faces.component.UIData.setRowIndex(UIData.java:473)
      7. javax.faces.component.UIData.visitColumnsAndColumnFacets(UIData.java:2078)
      8. javax.faces.component.UIData.visitTree(UIData.java:1431)
      9. javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
      10. javax.faces.component.UIComponent.visitTree(UIComponent.java:1600)
      10 frames
    9. JSF
      LifecycleImpl.render
      1. com.sun.faces.application.view.StateManagementStrategyImpl.saveView(StateManagementStrategyImpl.java:149)
      2. com.sun.faces.application.StateManagerImpl.saveView(StateManagerImpl.java:133)
      3. com.sun.faces.application.view.WriteBehindStateWriter.flushToWriter(WriteBehindStateWriter.java:225)
      4. com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:418)
      5. com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
      6. com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
      7. com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
      8. com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
      8 frames
    10. JavaEE 7
      FacesServlet.service
      1. javax.faces.webapp.FacesServlet.service(FacesServlet.java:410)
      1 frame
    11. Glassfish Core
      StandardPipeline.invoke
      1. org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
      2. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
      3. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
      4. org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
      5. org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
      5 frames
    12. Glassfish
      PESessionLockingStandardPipeline.invoke
      1. com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
      2. com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
      2 frames
    13. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
      2. org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
      3. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
      3 frames
    14. Kernel Classes
      ContainerMapper.service
      1. com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
      1 frame
    15. Grizzly WS
      AbstractThreadPool$Worker.run
      1. com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
      2. com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
      3. com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
      4. com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
      5. com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
      6. com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
      7. com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
      8. com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
      9. com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
      10. com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
      11. com.sun.grizzly.ContextTask.run(ContextTask.java:71)
      12. com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
      13. com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
      13 frames
    16. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:662)
      1 frame