java.lang.NullPointerException: null

GitHub | mhardin | 6 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

      null

      at org.openqa.grid.web.servlet.DisplayHelpServlet.getVersion()
    2. selenium-server
      DisplayHelpServlet.<init>
      1. org.openqa.grid.web.servlet.DisplayHelpServlet.getVersion(DisplayHelpServlet.java:105)[selenium-server-3.0.0-beta3.jar:na]
      2. org.openqa.grid.web.servlet.DisplayHelpServlet.<init>(DisplayHelpServlet.java:40)[selenium-server-3.0.0-beta3.jar:na]
      2 frames
    3. Java RT
      Class.newInstance
      1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)[na:1.8.0_65]
      2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)[na:1.8.0_65]
      3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)[na:1.8.0_65]
      4. java.lang.reflect.Constructor.newInstance(Constructor.java:422)[na:1.8.0_65]
      5. java.lang.Class.newInstance(Class.java:442)[na:1.8.0_65]
      5 frames
    4. org.seleniumhq.jetty9
      QueuedThreadPool$3.run
      1. org.seleniumhq.jetty9.server.handler.ContextHandler$Context.createInstance(ContextHandler.java:2372)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      2. org.seleniumhq.jetty9.servlet.ServletContextHandler$Context.createServlet(ServletContextHandler.java:1166)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      3. org.seleniumhq.jetty9.servlet.ServletHolder.newInstance(ServletHolder.java:1203)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      4. org.seleniumhq.jetty9.servlet.ServletHolder.initServlet(ServletHolder.java:584)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      5. org.seleniumhq.jetty9.servlet.ServletHolder.getServlet(ServletHolder.java:468)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      6. org.seleniumhq.jetty9.servlet.ServletHolder.ensureInstance(ServletHolder.java:763)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      7. org.seleniumhq.jetty9.servlet.ServletHolder.prepare(ServletHolder.java:748)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      8. org.seleniumhq.jetty9.servlet.ServletHandler.doHandle(ServletHandler.java:582)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      9. org.seleniumhq.jetty9.server.session.SessionHandler.doHandle(SessionHandler.java:221)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      10. org.seleniumhq.jetty9.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      11. org.seleniumhq.jetty9.servlet.ServletHandler.doScope(ServletHandler.java:515)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      12. org.seleniumhq.jetty9.server.session.SessionHandler.doScope(SessionHandler.java:185)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      13. org.seleniumhq.jetty9.server.handler.ContextHandler.doScope(ContextHandler.java:1061)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      14. org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:141)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      15. org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      16. org.seleniumhq.jetty9.server.Server.handle(Server.java:499)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      17. org.seleniumhq.jetty9.server.HttpChannel.handle(HttpChannel.java:310)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      18. org.seleniumhq.jetty9.server.HttpConnection.onFillable(HttpConnection.java:257)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      19. org.seleniumhq.jetty9.io.AbstractConnection$2.run(AbstractConnection.java:540)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      20. org.seleniumhq.jetty9.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      21. org.seleniumhq.jetty9.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)[jetty-repacked-9.2.13.v20160825.jar:3.1.0]
      21 frames
    5. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)[na:1.8.0_65]
      1 frame