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From "Jonathan Anstey (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SMX4NMR-294) NPE from OsgiServiceRegistryTracker when service is unavailable
Date Mon, 09 Jul 2012 19:05:35 GMT

     [ https://issues.apache.org/jira/browse/SMX4NMR-294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Anstey resolved SMX4NMR-294.
-------------------------------------

    Resolution: Fixed
    
> NPE from OsgiServiceRegistryTracker when service is unavailable
> ---------------------------------------------------------------
>
>                 Key: SMX4NMR-294
>                 URL: https://issues.apache.org/jira/browse/SMX4NMR-294
>             Project: ServiceMix NMR
>          Issue Type: Bug
>    Affects Versions: 1.5.0
>            Reporter: Jonathan Anstey
>            Assignee: Jonathan Anstey
>             Fix For: 1.6.0
>
>
> A big nasty stack is displayed in the console if the service is null in OsgiServiceRegistryTracker.addingService:
> {code}
> ERROR: Bundle org.apache.servicemix.nmr.osgi [223] EventDispatcher: Error during dispatch.
(java.lang.NullPointerException)
> java.lang.NullPointerException
> 	at java.util.concurrent.ConcurrentHashMap.putIfAbsent(ConcurrentHashMap.java:896)
> 	at org.apache.servicemix.nmr.core.ServiceRegistryImpl.register(ServiceRegistryImpl.java:45)
> 	at org.apache.servicemix.nmr.osgi.OsgiServiceRegistryTracker.addingService(OsgiServiceRegistryTracker.java:78)
> 	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:980)
> 		at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
> 	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:262)
> 	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:234)
> 	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:941)
> 	at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:934)
> 	at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:795)
> 	at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:544)
> 	at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4337)
> 	at org.apache.felix.framework.Felix.registerService(Felix.java:3352)
> 	at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
> 	at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:410)
> 	at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:184)
> 	at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:653)
> 	at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:336)
> 	at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:232)
> 	at org.apache.aries.blueprint.container.BlueprintExtender.checkBundle(BlueprintExtender.java:325)
> 	at org.apache.aries.blueprint.container.BlueprintExtender.bundleChanged(BlueprintExtender.java:244)
> 	at org.apache.aries.blueprint.container.BlueprintExtender$BlueprintBundleTrackerCustomizer.modifiedBundle(BlueprintExtender.java:471)
> 	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:495)
> 	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:1)
> 	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:238)
> 	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:457)
> 	at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:870)
> 	at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:791)
> 	at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:515)
> 	at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4321)
> 	at org.apache.felix.framework.Felix.startBundle(Felix.java:1945)
> 	at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:947)
> 	at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:934)
> 	at org.apache.karaf.shell.osgi.InstallBundle.doExecute(InstallBundle.java:51)
> 	at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:38)
> 	at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)
> 	at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)
> 	at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:474)
> 	at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:400)
> 	at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)
> 	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)
> 	at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)
> 	at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)
> 	at org.apache.karaf.shell.console.jline.Console.run(Console.java:226)
> 	at java.lang.Thread.run(Thread.java:680)
> {code}
> Would be better to display a helpful message in the logs instead of the NPE in the console.

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