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https://issues.apache.org/jira/browse/FELIX-4468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13972334#comment-13972334
]
David Jencks commented on FELIX-4468:
-------------------------------------
This appears to be a framework problem, if you call
context.getService(ServiceReference) on a service reference that has been
unregistered. The code in Felix is
<S> S getService(Bundle bundle, ServiceReference<S> ref)
{
try
{
return (S) m_registry.getService(bundle, ref);
}
catch (ServiceException ex)
{
fireFrameworkEvent(FrameworkEvent.ERROR, ref.getBundle(), ex);
}
return null;
}
and if ref is unregistered then ref.getBundle() must return null. Could we use
the ref as the source instead of the missing bundle in this case?
> EventObject is created with null pointer : "null source"
> --------------------------------------------------------
>
> Key: FELIX-4468
> URL: https://issues.apache.org/jira/browse/FELIX-4468
> Project: Felix
> Issue Type: Bug
> Components: Framework
> Affects Versions: framework-4.2.1, framework-4.4.0, scr-1.8.2
> Reporter: Vincent G.
>
> "java.util.EventObject" should not be created with null pointer. As a result,
> the real cause of the error is masked.
> java.lang.IllegalArgumentException: null source
> at java.util.EventObject.<init>(EventObject.java:56)
> at org.osgi.framework.FrameworkEvent.<init>(FrameworkEvent.java:196)
> at
> org.apache.felix.framework.Felix.fireFrameworkEvent(Felix.java:4392)
> at org.apache.felix.framework.Felix.getService(Felix.java:3572)
> at
> org.apache.felix.framework.BundleContextImpl.getService(BundleContextImpl.java:468)
> at
> org.osgi.util.tracker.ServiceTracker.addingService(ServiceTracker.java:411)
> at
> org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)
> at
> org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864)
> at
> org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
> at
> org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
> at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:317)
> at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261)
> at
> org.apache.felix.scr.impl.BundleComponentActivator.<init>(BundleComponentActivator.java:107)
> at
> org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:258)
> at org.apache.felix.scr.impl.Activator.access$000(Activator.java:45)
> at
> org.apache.felix.scr.impl.Activator$ScrExtension.start(Activator.java:185)
> at
> org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:259)
> at
> org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:232)
> at
> org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:479)
> at
> org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:414)
> at
> org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:232)
> at
> org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:443)
> at
> org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:868)
> at
> org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:789)
> at
> org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:514)
> at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4403)
> at org.apache.felix.framework.Felix.startBundle(Felix.java:2092)
> at
> org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1291)
> at
> org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:304)
> at java.lang.Thread.run(Thread.java:722)
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