java.lang.NullPointerException

Oracle Community | tosehee | 6 years 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
  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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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.jboss.weld.bootstrap.Validator.validateInjectionTarget()
    2. Weld Implementation
      WeldBootstrap.validateBeans
      1. org.jboss.weld.bootstrap.Validator.validateInjectionTarget(Validator.java:297)
      2. org.jboss.weld.manager.InjectionTargetValidator.validate(InjectionTargetValidator.java:46)
      3. org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:397)
      3 frames
    3. Embedded GlassFish Web
      WeldDeployer.event
      1. org.glassfish.weld.WeldDeployer.event(WeldDeployer.java:190)
      1 frame
    4. Kernel Classes
      EventsImpl.send
      1. org.glassfish.kernel.event.EventsImpl.send(EventsImpl.java:128)
      1 frame
    5. Private APIs of Glassfish
      ApplicationInfo.start
      1. org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:306)
      1 frame
    6. Kernel Classes
      ApplicationLifecycle.deploy
      1. com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:462)
      2. com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
      2 frames
    7. Embedded GlassFish Web
      InstanceDeployCommand.execute
      1. org.glassfish.deployment.admin.InstanceDeployCommand.execute(InstanceDeployCommand.java:186)
      1 frame
    8. Kernel Classes
      AdminAdapter.service
      1. com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:355)
      2. com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:370)
      3. com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1045)
      4. com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:96)
      5. com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1244)
      6. com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1232)
      7. com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:459)
      8. com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:209)
      8 frames
    9. Grizzly WS
      GrizzlyAdapter.service
      1. com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:168)
      1 frame
    10. Kernel Classes
      ContainerMapper.service
      1. com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
      2. com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:238)
      2 frames
    11. Grizzly WS
      AbstractThreadPool$Worker.run
      1. com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
      2. com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
      3. com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
      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
    12. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:680)
      1 frame