java.lang.NullPointerException

GitHub | fbacchella | 9 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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  4. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 2 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object
  5. 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 com.gitblit.wicket.panels.AccessPolicyPanel.updateModel()
    2. com.gitblit.wicket
      EditRepositoryPage$3.onUpdate
      1. com.gitblit.wicket.panels.AccessPolicyPanel.updateModel(AccessPolicyPanel.java:163)
      2. com.gitblit.wicket.pages.EditRepositoryPage$3.onUpdate(EditRepositoryPage.java:628)
      2 frames
    3. Wicket Core
      AbstractDefaultAjaxBehavior.onRequest
      1. org.apache.wicket.ajax.form.AjaxFormChoiceComponentUpdatingBehavior.respond(AjaxFormChoiceComponentUpdatingBehavior.java:179)
      2. org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:312)
      2 frames
    4. org.apache.wicket
      BehaviorRequestTarget.processEvents
      1. org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:157)
      1 frame
    5. Wicket Request
      AbstractRequestCycleProcessor.processEvents
      1. org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
      1 frame
    6. Wicket Core
      WicketFilter.doFilter
      1. org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1279)
      2. org.apache.wicket.RequestCycle.step(RequestCycle.java:1358)
      3. org.apache.wicket.RequestCycle.steps(RequestCycle.java:1465)
      4. org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
      5. org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:486)
      6. org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:319)
      6 frames
    7. Guice - Servlet
      FilterChainInvocation.doFilter
      1. com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:88)
      1 frame
    8. com.gitblit.servlet
      EnforceAuthenticationFilter.doFilter
      1. com.gitblit.servlet.EnforceAuthenticationFilter.doFilter(EnforceAuthenticationFilter.java:99)
      1 frame
    9. Guice - Servlet
      FilterChainInvocation.doFilter
      1. com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:88)
      1 frame
    10. com.gitblit.servlet
      ProxyFilter.doFilter
      1. com.gitblit.servlet.ProxyFilter$1.doFilter(ProxyFilter.java:89)
      2. com.gitblit.servlet.ProxyFilter.doFilter(ProxyFilter.java:82)
      2 frames
    11. Guice - Servlet
      GuiceFilter.doFilter
      1. com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:88)
      2. com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:120)
      3. com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:133)
      4. com.google.inject.servlet.GuiceFilter$1.call(GuiceFilter.java:130)
      5. com.google.inject.servlet.GuiceFilter$Context.call(GuiceFilter.java:203)
      6. com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:130)
      6 frames
    12. Glassfish Core
      StandardContextValve.invoke
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
      4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
      4 frames
    13. org.jasig.cas
      CleanCas20CasAuthenticator.invoke
      1. org.jasig.cas.client.tomcat.v7.CleanCas20CasAuthenticator.invoke(CleanCas20CasAuthenticator.java:43)
      1 frame
    14. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:610)
      2. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
      3. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
      4. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
      5. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      5 frames
    15. org.apache.coyote
      AjpProcessor.process
      1. org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:193)
      1 frame
    16. Grizzly HTTP
      JIoEndpoint$SocketProcessor.run
      1. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
      2. org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
      2 frames
    17. Java RT
      ThreadPoolExecutor$Worker.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      2 frames
    18. Tomcat Util
      TaskThread$WrappingRunnable.run
      1. org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
      1 frame
    19. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame