java.lang.NullPointerException

felix-users | Marcel Offermans | 5 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
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  3. 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
  4. 0

    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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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.felix.bundlerepository.impl.LocalRepositoryImpl.serviceChanged()
    2. Apache Felix Bundle Repository
      LocalRepositoryImpl.serviceChanged
      1. org.apache.felix.bundlerepository.impl.LocalRepositoryImpl.serviceChanged(LocalRepositoryImpl.java:71)
      1 frame
    3. Apache Felix Framework
      BundleContextImpl.registerService
      1. org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932)
      2. org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793)
      3. org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543)
      4. org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4252)
      5. org.apache.felix.framework.Felix.registerService(Felix.java:3275)
      6. org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
      6 frames
    4. Apache Felix Declarative Services
      Activator.bundleChanged
      1. org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:449)
      2. org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:460)
      3. org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1009)
      4. org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:333)
      5. org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:157)
      6. org.apache.felix.scr.impl.config.ConfiguredComponentHolder.enableComponents(ConfiguredComponentHolder.java:256)
      7. org.apache.felix.scr.impl.BundleComponentActivator.loadDescriptor(BundleComponentActivator.java:253)
      8. org.apache.felix.scr.impl.BundleComponentActivator.initialize(BundleComponentActivator.java:147)
      9. org.apache.felix.scr.impl.BundleComponentActivator.<init>(BundleComponentActivator.java:111)
      10. org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:285)
      11. org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:203)
      11 frames
    5. Apache Felix Framework
      FrameworkStartLevelImpl.run
      1. org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:868)
      2. org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:789)
      3. org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:514)
      4. org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4236)
      5. org.apache.felix.framework.Felix.startBundle(Felix.java:1923)
      6. org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1191)
      7. org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
      7 frames
    6. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:662)
      1 frame