Did you try a manual refresh when it happens ? Regards JB
On 11/04/2019 17:46, Martin Lichtin wrote: > https://issues.apache.org/jira/browse/KARAF-6234 > > Thanks in advance. Is this a situation Karaf can recover from or should > I restart if this issue occurs? > > - Martin > > On 11.04.2019 16:05, Jean-Baptiste Onofré wrote: >> Yes, it's rarely null for the service reference, but you are right, we >> should improve the code to fallback when it's null. >> >> Can you please create a Jira, I will tackle that ? >> >> Sorry about that. >> >> Regards >> JB >> >> On 11/04/2019 15:56, Martin Lichtin wrote: >>> Has anyone seen this at Karaf startup and understands what the cause is? >>> >>> 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 >>> >>> Just looking at MetaServiceCaller.withMetaTypeService(), "ref" could be >>> null but the code does not handle that. >>> >>> - Martin -- Jean-Baptiste Onofré [email protected] http://blog.nanthrax.net Talend - http://www.talend.com
