java.lang.NullPointerException

Google Groups | Pantelis Karamolegkos | 8 months 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
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    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.dspace.core.AbstractHibernateDAO.getHibernateSession()
    2. DSpace Kernel :: API and Implementation
      DSpaceWebappListener.contextInitialized
      1. org.dspace.core.AbstractHibernateDAO.getHibernateSession(AbstractHibernateDAO.java:48)
      2. org.dspace.core.AbstractHibernateDAO.create(AbstractHibernateDAO.java:38)
      3. org.dspace.app.util.WebAppServiceImpl.create(WebAppServiceImpl.java:49)
      4. org.dspace.app.util.AbstractDSpaceWebapp.register(AbstractDSpaceWebapp.java:75)
      5. org.dspace.app.util.DSpaceWebappListener.contextInitialized(DSpaceWebappListener.java:31)
      5 frames
    3. Glassfish Core
      ContainerBase$StartChild.call
      1. org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
      2. org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5221)
      3. org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      4. org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
      5. org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
      5 frames
    4. Java RT
      Thread.run
      1. java.util.concurrent.FutureTask.run(FutureTask.java:266)
      2. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      3. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      4. java.lang.Thread.run(Thread.java:745)
      4 frames