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https://issues.apache.org/jira/browse/KARAF-6234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jean-Baptiste Onofré resolved KARAF-6234.
-----------------------------------------
Resolution: Fixed
> Handle null reference in MetaServiceCaller.withMetaTypeService()
> ----------------------------------------------------------------
>
> Key: KARAF-6234
> URL: https://issues.apache.org/jira/browse/KARAF-6234
> Project: Karaf
> Issue Type: Improvement
> Components: karaf
> Affects Versions: 4.1.7
> Reporter: Martin Lichtin
> Assignee: Jean-Baptiste Onofré
> Priority: Minor
> Fix For: 4.3.0, 4.2.6
>
>
> {noformat}
> 2019-04-10T20:23:42,571 | INFO | FelixStartLevel | CommandExtension
> | mpl.action.osgi.CommandExtension 146 | 44 -
> org.apache.karaf.shell.core - 4.1.7 | Registering commands for bundle
> org.apache.karaf.config.core/4.1.7
> 2019-04-10T20:23:42,578 | WARN | FelixStartLevel | CommandExtender
> | impl.action.osgi.CommandExtender 87 | 44 -
> org.apache.karaf.shell.core - 4.1.7 | org.apache.karaf.config.core (24):
> Error while creating extension
> java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
> at
> org.apache.karaf.shell.impl.action.command.ManagerImpl.register(ManagerImpl.java:159)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.karaf.shell.impl.action.osgi.CommandExtension.updateState(CommandExtension.java:168)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.karaf.shell.impl.action.osgi.CommandExtension.start(CommandExtension.java:113)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.felix.utils.extender.AbstractExtender.createExtension(AbstractExtender.java:254)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.felix.utils.extender.AbstractExtender.modifiedBundle(AbstractExtender.java:227)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.felix.utils.extender.AbstractExtender.addingBundle(AbstractExtender.java:187)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:469)
> [?:?]
> at
> org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:415)
> [?:?]
> 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.BundleTracker.open(BundleTracker.java:156) [?:?]
> at
> org.apache.felix.utils.extender.AbstractExtender.startTracking(AbstractExtender.java:150)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.felix.utils.extender.AbstractExtender.doStart(AbstractExtender.java:142)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.felix.utils.extender.AbstractExtender.start(AbstractExtender.java:114)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.karaf.shell.impl.console.osgi.Activator.start(Activator.java:107)
> [44:org.apache.karaf.shell.core:4.1.7]
> at
> org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:697)
> [?:?]
> at org.apache.felix.framework.Felix.activateBundle(Felix.java:2240) [?:?]
> at org.apache.felix.framework.Felix.startBundle(Felix.java:2146) [?:?]
> at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1373)
> [?:?]
> at
> org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
> [?:?]
> at java.lang.Thread.run(Thread.java:748) [?:?]
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> ~[?:?]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:?]
> at java.lang.reflect.Method.invoke(Method.java:498) ~[?:?]
> at
> org.apache.karaf.shell.impl.action.command.ManagerImpl.instantiate(ManagerImpl.java:103)
> ~[?:?]
> at
> org.apache.karaf.shell.impl.action.command.ManagerImpl.instantiate(ManagerImpl.java:60)
> ~[?:?]
> at
> org.apache.karaf.shell.impl.action.command.ManagerImpl.register(ManagerImpl.java:151)
> ~[?:?]
> ... 20 more
> Caused by: java.lang.NullPointerException: Specified service reference cannot
> be null.
> at
> org.apache.felix.framework.BundleContextImpl.ungetService(BundleContextImpl.java:479)
> ~[?:?]
> at
> org.apache.karaf.config.core.impl.MetaServiceCaller.withMetaTypeService(MetaServiceCaller.java:38)
> ~[?:?]
> at
> org.apache.karaf.config.command.completers.MetaCompleter.updateMeta(MetaCompleter.java:63)
> ~[?:?]
> at
> org.apache.karaf.config.command.completers.MetaCompleter.init(MetaCompleter.java:49)
> ~[?:?]
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> ~[?:?]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:?]
> at java.lang.reflect.Method.invoke(Method.java:498) ~[?:?]
> at
> org.apache.karaf.shell.impl.action.command.ManagerImpl.instantiate(ManagerImpl.java:103)
> ~[?:?]
> at
> org.apache.karaf.shell.impl.action.command.ManagerImpl.instantiate(ManagerImpl.java:60)
> ~[?:?]
> at
> org.apache.karaf.shell.impl.action.command.ManagerImpl.register(ManagerImpl.java:151)
> ~[?:?]
> ... 20 more
> 2019-04-10T20:23:42,584 | INFO | FelixStartLevel | CommandExtension
> | mpl.action.osgi.CommandExtension 146 | 44 -
> org.apache.karaf.shell.core - 4.1.7 | Registering commands for bundle
> org.apache.karaf.deployer.kar/4.1.7
> {noformat}
> Just looking at MetaServiceCaller.withMetaTypeService(), "ref" could be null
> but the code does not handle that.
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