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From "John Ross (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ARIES-1441) Subsystem core tries to shutdown the framework when it has a framework dependency like org.osgi.util.tracker
Date Tue, 23 Feb 2016 16:17:18 GMT

    [ https://issues.apache.org/jira/browse/ARIES-1441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15159117#comment-15159117
] 

John Ross commented on ARIES-1441:
----------------------------------

Starting the subsystem is necessary for the following reason.

When the subsystems implementation bundle is stopped, a deactivation occurs. As part of the
deactivation, the root subsystem is stopped. As part of stopping the root subsystem, the child
subsystem is stopped. Because the child subsystem references the bundle providing the necessary
package, the bundle is stopped,

The issue does not occur if the subsystem is not started because (1) there is no child subsystem
to stop, and (2) protection against stopping unmanaged bundles is already provided by line
147 of StartAction when stopping the root subsystem.

> Subsystem core tries to shutdown the framework when it has a framework dependency like
org.osgi.util.tracker
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: ARIES-1441
>                 URL: https://issues.apache.org/jira/browse/ARIES-1441
>             Project: Aries
>          Issue Type: Bug
>          Components: Subsystem
>    Affects Versions: subsystem-2.0.6, subsystem-2.0.8
>         Environment: karaf 
> pax exam
>            Reporter: Bas
>              Labels: patch, test
>         Attachments: AriesStopSubsystem.java.test.patch, patch-stop-subsystem.patch
>
>
> When performing a shutdown of the subsystem core bundle it tries to stop the framework
because there is a org.osgi.util.tracker import package.
> Also in the same situation described above when trying to shutdown the framework by calling
stop on bundle 0 it can fail with:
> [org.apache.aries.subsystem.core.internal.StopAction] : An error occurred while stopping
resource osgi.identity; osgi.identity="org.eclipse.osgi"; type="osgi.bundle"; version:Version="3.10.0.v20140606-1445";
singleton:="true" of subsystem org.apache.aries.subsystem.core.internal.BasicSubsystem@25760667
> org.osgi.framework.BundleException: Unable to acquire the state change lock for the module:
osgi.identity; osgi.identity="org.eclipse.osgi"; type="osgi.bundle"; version:Version="3.10.0.v20140606-1445";
singleton:="true" [id=0] STOPPED [STOPPED] invalid
> 	at org.eclipse.osgi.container.Module.lockStateChange(Module.java:329)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule.asyncStop(EquinoxBundle.java:151)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle.stop(EquinoxBundle.java:272)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle.stop(EquinoxBundle.java:277)
> 	at org.apache.aries.subsystem.core.internal.StopAction.stopBundleResource(StopAction.java:97)
> 	at org.apache.aries.subsystem.core.internal.StopAction.stopResource(StopAction.java:109)
> 	at org.apache.aries.subsystem.core.internal.StopAction.run(StopAction.java:67)
> 	at org.apache.aries.subsystem.core.internal.StopAction.stopSubsystemResource(StopAction.java:135)
> 	at org.apache.aries.subsystem.core.internal.StopAction.stopResource(StopAction.java:107)
> 	at org.apache.aries.subsystem.core.internal.StopAction.run(StopAction.java:67)
> 	at org.apache.aries.subsystem.core.internal.Activator.deactivate(Activator.java:162)
> 	at org.apache.aries.subsystem.core.internal.Activator.removedService(Activator.java:291)
> 	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:967)
> 	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:870)
> 	at org.osgi.util.tracker.AbstractTracked.untrack(AbstractTracked.java:341)
> 	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:909)
> 	at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:109)
> 	at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:914)
> 	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
> 	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
> 	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:862)
> 	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:801)
> 	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:222)
> 	at org.eclipse.equinox.internal.region.RegionManager.stop(RegionManager.java:67)
> 	at org.eclipse.osgi.internal.framework.BundleContextImpl$4.run(BundleContextImpl.java:827)
> 	at org.eclipse.osgi.internal.framework.BundleContextImpl$4.run(BundleContextImpl.java:1)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at org.eclipse.osgi.internal.framework.BundleContextImpl.stop(BundleContextImpl.java:820)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle.stopWorker0(EquinoxBundle.java:950)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.stopWorker(EquinoxBundle.java:324)
> 	at org.eclipse.osgi.container.Module.doStop(Module.java:626)
> 	at org.eclipse.osgi.container.Module.stop(Module.java:488)
> 	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.decStartLevel(ModuleContainer.java:1623)
> 	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1542)
> 	at org.eclipse.osgi.container.SystemModule.stopWorker(SystemModule.java:248)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule.stopWorker(EquinoxBundle.java:145)
> 	at org.eclipse.osgi.container.Module.doStop(Module.java:626)
> 	at org.eclipse.osgi.container.Module.stop(Module.java:488)
> 	at org.eclipse.osgi.container.SystemModule.stop(SystemModule.java:186)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule$1.run(EquinoxBundle.java:160)
> 	at java.lang.Thread.run(Thread.java:662)



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