java.lang.NullPointerException

Stack Overflow | Jakub_R | 7 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 | 2 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

      No message provided

      at com.kuba.crud.resources.CustomerResource.getCustomers()
    2. com.kuba.crud
      CustomerResource.getCustomers
      1. com.kuba.crud.resources.CustomerResource.getCustomers(CustomerResource.java:37)
      1 frame
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:498)
      4 frames
    4. jersey-core-server
      ServerRuntime$2.run
      1. org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
      2. org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
      3. org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
      4. org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
      5. org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
      6. org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
      7. org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
      8. org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
      9. org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
      9 frames
    5. Jersey Core
      RequestScope.runInScope
      1. org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
      2. org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
      3. org.glassfish.jersey.internal.Errors.process(Errors.java:315)
      4. org.glassfish.jersey.internal.Errors.process(Errors.java:297)
      5. org.glassfish.jersey.internal.Errors.process(Errors.java:267)
      6. org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
      6 frames
    6. jersey-core-server
      ApplicationHandler.handle
      1. org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
      2. org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
      2 frames
    7. jersey-container-servlet-core
      ServletContainer.service
      1. org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
      2. org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
      3. org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
      4. org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
      5. org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
      5 frames
    8. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
      2 frames
    9. OpenEJB :: TomEE :: Web Services
      CXFJAXRSFilter.doFilter
      1. org.apache.tomee.webservices.CXFJAXRSFilter.doFilter(CXFJAXRSFilter.java:83)
      1 frame
    10. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
      2 frames
    11. Tomcat WS
      WsFilter.doFilter
      1. org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
      1 frame
    12. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
      2 frames
    13. OpenEJB :: Server :: Http
      EEFilter.doFilter
      1. org.apache.openejb.server.httpd.EEFilter.doFilter(EEFilter.java:65)
      1 frame
    14. Glassfish Core
      StandardContextValve.invoke
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
      3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
      4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108)
      4 frames
    15. OpenEJB :: TomEE :: Catalina
      OpenEJBValve.invoke
      1. org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
      1 frame
    16. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:522)
      2. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
      3. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
      4. org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
      5. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
      6. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
      6 frames
    17. Grizzly HTTP
      SocketProcessorBase.run
      1. org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1110)
      2. org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
      3. org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:785)
      4. org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425)
      5. org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
      5 frames
    18. Java RT
      ThreadPoolExecutor$Worker.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      2 frames
    19. Tomcat Util
      TaskThread$WrappingRunnable.run
      1. org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
      1 frame
    20. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame