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From "John Ross (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ARIES-1429) NullPointerException at org.apache.aries.subsystem.core.internal.WovenClassListener.modified at org.apache.aries.subsystem.core.internal.RegionUpdater.addRequirements
Date Fri, 09 Oct 2015 19:59:06 GMT

     [ https://issues.apache.org/jira/browse/ARIES-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Ross resolved ARIES-1429.
------------------------------
    Resolution: Fixed

http://svn.apache.org/viewvc?rev=1707803&view=rev

> NullPointerException at org.apache.aries.subsystem.core.internal.WovenClassListener.modified
at org.apache.aries.subsystem.core.internal.RegionUpdater.addRequirements
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ARIES-1429
>                 URL: https://issues.apache.org/jira/browse/ARIES-1429
>             Project: Aries
>          Issue Type: Bug
>          Components: Subsystem
>    Affects Versions: subsystem-2.0.4
>            Reporter: John Ross
>            Assignee: John Ross
>             Fix For: subsystem-2.0.6
>
>
> A NullPointerException [1] may occur while updating a region as part of adding dynamic
imports to the sharing policy for a bundle containing a woven class. This will only occur
when something outside of the subsystems implementation for whatever reason has deleted the
region digraph edge that connects the parent subsystem to the subsystem containing the bundle
whose class is being woven as a constituent.
> Still, it would be useful if the implementation would allow this by replacing the NPE
with a noop. In other words, if the implementation does not find an existing edge between
parent and child, it would simply assume that something else is handling the dynamic imports.
> [1]
> org.osgi.service.subsystem.SubsystemException: java.lang.NullPointerException
> 	at org.apache.aries.subsystem.core.internal.WovenClassListener.modified(WovenClassListener.java:125)
> 	at org.eclipse.osgi.internal.weaving.WovenClassImpl$1.call(WovenClassImpl.java:203)
> 	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyHookPrivileged(ServiceRegistry.java:1280)
> 	at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyHooksPrivileged(ServiceRegistry.java:1263)
> 	at org.eclipse.osgi.internal.weaving.WovenClassImpl.notifyWovenClassListeners(WovenClassImpl.java:220)
> 	at org.eclipse.osgi.internal.weaving.WovenClassImpl.callHooks(WovenClassImpl.java:271)
> 	at org.eclipse.osgi.internal.weaving.WeavingHookConfigurator.processClass(WeavingHookConfigurator.java:56)
> 	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:616)
> 	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:588)
> 	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:540)
> 	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:527)
> 	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)
> 	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:330)
> 	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:407)
> 	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:357)
> 	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:349)
> 	at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:757)
> 	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:711)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:951)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:328)
> 	at org.eclipse.osgi.container.Module.doStart(Module.java:566)
> 	at org.eclipse.osgi.container.Module.start(Module.java:434)
> 	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:402)
> 	at org.apache.aries.subsystem.core.internal.StartAction.startBundleResource(StartAction.java:337)
> 	at org.apache.aries.subsystem.core.internal.StartAction.startResource(StartAction.java:365)
> 	at org.apache.aries.subsystem.core.internal.StartAction.run(StartAction.java:128)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at org.apache.aries.subsystem.core.internal.BasicSubsystem.start(BasicSubsystem.java:295)
> 	...
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> 	at org.apache.aries.subsystem.core.internal.RegionUpdater.addRequirements(RegionUpdater.java:106)
> 	at org.apache.aries.subsystem.core.internal.RegionUpdater.addRequirements(RegionUpdater.java:60)
> 	at org.apache.aries.subsystem.core.internal.WovenClassListener.modified(WovenClassListener.java:122)
> 	... 39 more



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