java.lang.NullPointerException

GitHub | MattHeard | 3 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
  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.deuteriumlabs.dendrite.view.ReadView.getParagraphs()
    2. com.deuteriumlabs.dendrite
      ReadView.getParagraphs
      1. com.deuteriumlabs.dendrite.view.ReadView.getParagraphs(ReadView.java:169)
      1 frame
    3. org.apache.jsp
      read_jsp._jspService
      1. org.apache.jsp.read_jsp._jspService(read_jsp.java:376)
      1 frame
    4. GWT dev
      HttpJspBase.service
      1. org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
      1 frame
    5. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
      1 frame
    6. Google AppEngine
      ParseBlobUploadFilter.doFilter
      1. com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)
      1 frame
    7. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
      1 frame
    8. com.google.apphosting
      SaveSessionFilter.doFilter
      1. com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
      1 frame
    9. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
      1 frame
    10. Google AppEngine
      JdbcMySqlConnectionCleanupFilter.doFilter
      1. com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60)
      1 frame
    11. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
      1 frame
    12. Google AppEngine
      TransactionCleanupFilter.doFilter
      1. com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
      1 frame
    13. Jetty Server
      WebAppContext.handle
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
      2. org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
      3. org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
      4. org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
      5. org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
      6. org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
      6 frames
    14. com.google.apphosting
      AppVersionHandlerMap.handle
      1. com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:266)
      1 frame
    15. Jetty Server
      HttpConnection$RequestHandler.headerComplete
      1. org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
      2. org.mortbay.jetty.Server.handle(Server.java:326)
      3. org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
      4. org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
      4 frames
    16. com.google.apphosting
      RpcRequestParser.parseAvailable
      1. com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
      1 frame
    17. Jetty Server
      HttpConnection.handle
      1. org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
      1 frame
    18. com.google.apphosting
      JettyServletEngineAdapter.serviceRequest
      1. com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146)
      1 frame
    19. appengine-managed-runtime
      JavaRuntime$RequestRunnable.run
      1. com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:446)
      1 frame
    20. Google tracing
      TraceContext$TraceContextRunnable.run
      1. com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437)
      2. com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:444)
      3. com.google.tracing.CurrentContext.runInContext(CurrentContext.java:188)
      4. com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308)
      5. com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300)
      6. com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441)
      6 frames
    21. appengine-managed-runtime
      ThreadGroupPool$PoolEntry.run
      1. com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
      1 frame
    22. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:724)
      1 frame