java.lang.NullPointerException: null

SpringSource Issue Tracker | Glyn Normington (c) | 7 years ago
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  1. 0

    This seems to be a different problem than when the logging level is set to TRACE as there is now no stack overflow in the most recent log file (log.log, attached). Nevertheless, shutdown is initiated although the reason is not immediately clear. There is a NPE in the attached log.log file, although this may not be relevant: [2010-01-04 14:44:44.270] kernel-dm-12 c.s.k.s.internal.CommandRegistry$CommandRegistryServiceListener < public void com.springsource.kernel.shell.internal.CommandRegistry.CommandRegistryServiceListener.serviceChanged(org.osgi.framework.ServiceEvent) java.lang.NullPointerException: null at java.util.AbstractCollection.removeAll(AbstractCollection.java:336) at com.springsource.kernel.shell.internal.CommandRegistry.serviceUnregistering(CommandRegistry.java:107) at com.springsource.kernel.shell.internal.CommandRegistry.access$1(CommandRegistry.java:104) at com.springsource.kernel.shell.internal.CommandRegistry$CommandRegistryServiceListener.serviceChanged(CommandRegistry.java:120) at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:104) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:933) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:149) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:756) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:711) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:224) at org.springframework.osgi.service.exporter.support.internal.support.ServiceRegistrationDecorator.unregister(ServiceRegistrationDecorator.java:65) at org.springframework.osgi.util.OsgiServiceUtils.unregisterService(OsgiServiceUtils.java:41) at org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean.unregisterService(OsgiServiceFactoryBean.java:372) at org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean.unregisterService(OsgiServiceFactoryBean.java:362) at org.springframework.osgi.service.exporter.support.AbstractOsgiServiceExporter.destroy(AbstractOsgiServiceExporter.java:84) at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:184) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:486) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:462) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:430) at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:977) at org.springframework.osgi.context.support.AbstractOsgiBundleApplicationContext.destroyBeans(AbstractOsgiBundleApplicationContext.java:204) at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:953) at org.springframework.osgi.context.support.AbstractOsgiBundleApplicationContext.doClose(AbstractOsgiBundleApplicationContext.java:197) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.access$501(AbstractDelegatedExecutionApplicationContext.java:69) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$2.run(AbstractDelegatedExecutionApplicationContext.java:214) at org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.normalClose(AbstractDelegatedExecutionApplicationContext.java:210) at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.close(DependencyWaiterApplicationContextExecutor.java:374) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.doClose(AbstractDelegatedExecutionApplicationContext.java:236) at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:917) at org.springframework.osgi.extender.internal.activator.ContextLoaderListener$1.run(ContextLoaderListener.java:522) at org.springframework.osgi.extender.internal.util.concurrent.RunnableTimedExecution$MonitoredRunnable.run(RunnableTimedExecution.java:60) at com.springsource.kernel.agent.dm.ContextPropagatingTaskExecutor$2.run(ContextPropagatingTaskExecutor.java:106) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:637)

    SpringSource Issue Tracker | 7 years ago | Glyn Normington (c)
    java.lang.NullPointerException: null
  2. 0

    This seems to be a different problem than when the logging level is set to TRACE as there is now no stack overflow in the most recent log file (log.log, attached). Nevertheless, shutdown is initiated although the reason is not immediately clear. There is a NPE in the attached log.log file, although this may not be relevant: [2010-01-04 14:44:44.270] kernel-dm-12 c.s.k.s.internal.CommandRegistry$CommandRegistryServiceListener < public void com.springsource.kernel.shell.internal.CommandRegistry.CommandRegistryServiceListener.serviceChanged(org.osgi.framework.ServiceEvent) java.lang.NullPointerException: null at java.util.AbstractCollection.removeAll(AbstractCollection.java:336) at com.springsource.kernel.shell.internal.CommandRegistry.serviceUnregistering(CommandRegistry.java:107) at com.springsource.kernel.shell.internal.CommandRegistry.access$1(CommandRegistry.java:104) at com.springsource.kernel.shell.internal.CommandRegistry$CommandRegistryServiceListener.serviceChanged(CommandRegistry.java:120) at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:104) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:933) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:149) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:756) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:711) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:224) at org.springframework.osgi.service.exporter.support.internal.support.ServiceRegistrationDecorator.unregister(ServiceRegistrationDecorator.java:65) at org.springframework.osgi.util.OsgiServiceUtils.unregisterService(OsgiServiceUtils.java:41) at org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean.unregisterService(OsgiServiceFactoryBean.java:372) at org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean.unregisterService(OsgiServiceFactoryBean.java:362) at org.springframework.osgi.service.exporter.support.AbstractOsgiServiceExporter.destroy(AbstractOsgiServiceExporter.java:84) at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:184) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:486) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:462) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:430) at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:977) at org.springframework.osgi.context.support.AbstractOsgiBundleApplicationContext.destroyBeans(AbstractOsgiBundleApplicationContext.java:204) at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:953) at org.springframework.osgi.context.support.AbstractOsgiBundleApplicationContext.doClose(AbstractOsgiBundleApplicationContext.java:197) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.access$501(AbstractDelegatedExecutionApplicationContext.java:69) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$2.run(AbstractDelegatedExecutionApplicationContext.java:214) at org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.normalClose(AbstractDelegatedExecutionApplicationContext.java:210) at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.close(DependencyWaiterApplicationContextExecutor.java:374) at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.doClose(AbstractDelegatedExecutionApplicationContext.java:236) at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:917) at org.springframework.osgi.extender.internal.activator.ContextLoaderListener$1.run(ContextLoaderListener.java:522) at org.springframework.osgi.extender.internal.util.concurrent.RunnableTimedExecution$MonitoredRunnable.run(RunnableTimedExecution.java:60) at com.springsource.kernel.agent.dm.ContextPropagatingTaskExecutor$2.run(ContextPropagatingTaskExecutor.java:106) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:637)

    SpringSource Issue Tracker | 7 years ago | Glyn Normington (c)
    java.lang.NullPointerException: null
  3. 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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  5. 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
  6. 0

    Cloud Foundry v2 in Grails

    Stack Overflow | 3 years ago | angelo087
    java.lang.NullPointerException: Cannot invoke method getAt() on null object

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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at java.util.AbstractCollection.removeAll()
    2. Java RT
      AbstractCollection.removeAll
      1. java.util.AbstractCollection.removeAll(AbstractCollection.java:336)
      1 frame
    3. com.springsource.kernel
      CommandRegistry$CommandRegistryServiceListener.serviceChanged
      1. com.springsource.kernel.shell.internal.CommandRegistry.serviceUnregistering(CommandRegistry.java:107)
      2. com.springsource.kernel.shell.internal.CommandRegistry.access$1(CommandRegistry.java:104)
      3. com.springsource.kernel.shell.internal.CommandRegistry$CommandRegistryServiceListener.serviceChanged(CommandRegistry.java:120)
      3 frames
    4. Eclipse OSGi
      FilteredServiceListener.serviceChanged
      1. org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:104)
      1 frame
    5. Eclipse OSGi
      BundleContextImpl.dispatchEvent
      1. org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:933)
      1 frame
    6. Eclipse OSGi
      ServiceRegistrationImpl.unregister
      1. org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
      2. org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:149)
      3. org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:756)
      4. org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:711)
      5. org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:224)
      5 frames
    7. Spring OSGi Core
      AbstractOsgiServiceExporter.destroy
      1. org.springframework.osgi.service.exporter.support.internal.support.ServiceRegistrationDecorator.unregister(ServiceRegistrationDecorator.java:65)
      2. org.springframework.osgi.util.OsgiServiceUtils.unregisterService(OsgiServiceUtils.java:41)
      3. org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean.unregisterService(OsgiServiceFactoryBean.java:372)
      4. org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean.unregisterService(OsgiServiceFactoryBean.java:362)
      5. org.springframework.osgi.service.exporter.support.AbstractOsgiServiceExporter.destroy(AbstractOsgiServiceExporter.java:84)
      5 frames
    8. Spring Beans
      DefaultSingletonBeanRegistry.destroySingletons
      1. org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:184)
      2. org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:486)
      3. org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:462)
      4. org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:430)
      4 frames
    9. Spring Context
      AbstractApplicationContext.destroyBeans
      1. org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:977)
      1 frame
    10. Spring OSGi Core
      AbstractOsgiBundleApplicationContext.destroyBeans
      1. org.springframework.osgi.context.support.AbstractOsgiBundleApplicationContext.destroyBeans(AbstractOsgiBundleApplicationContext.java:204)
      1 frame
    11. Spring Context
      AbstractApplicationContext.doClose
      1. org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:953)
      1 frame
    12. Spring OSGi Core
      AbstractDelegatedExecutionApplicationContext.normalClose
      1. org.springframework.osgi.context.support.AbstractOsgiBundleApplicationContext.doClose(AbstractOsgiBundleApplicationContext.java:197)
      2. org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.access$501(AbstractDelegatedExecutionApplicationContext.java:69)
      3. org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$2.run(AbstractDelegatedExecutionApplicationContext.java:214)
      4. org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
      5. org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.normalClose(AbstractDelegatedExecutionApplicationContext.java:210)
      5 frames
    13. org.springframework.osgi
      DependencyWaiterApplicationContextExecutor.close
      1. org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.close(DependencyWaiterApplicationContextExecutor.java:374)
      1 frame
    14. Spring OSGi Core
      AbstractDelegatedExecutionApplicationContext.doClose
      1. org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.doClose(AbstractDelegatedExecutionApplicationContext.java:236)
      1 frame
    15. Spring Context
      AbstractApplicationContext.close
      1. org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:917)
      1 frame
    16. org.springframework.osgi
      RunnableTimedExecution$MonitoredRunnable.run
      1. org.springframework.osgi.extender.internal.activator.ContextLoaderListener$1.run(ContextLoaderListener.java:522)
      2. org.springframework.osgi.extender.internal.util.concurrent.RunnableTimedExecution$MonitoredRunnable.run(RunnableTimedExecution.java:60)
      2 frames
    17. com.springsource.kernel
      ContextPropagatingTaskExecutor$2.run
      1. com.springsource.kernel.agent.dm.ContextPropagatingTaskExecutor$2.run(ContextPropagatingTaskExecutor.java:106)
      1 frame
    18. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
      3. java.lang.Thread.run(Thread.java:637)
      3 frames