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https://issues.apache.org/jira/browse/SLING-10938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17449188#comment-17449188
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Michał Goliński commented on SLING-10938:
-----------------------------------------
I went back to an older version of Peregrine lanucher (which is based on an
older version of Sling stater and exhibits the same behaviour). The comparison
of the exceptions thrown for older OakDicoveryService (caught after
SLING-10204) and JobManagerConfiguration: https://www.diffchecker.com/sT8hAalz
> Exception thrown on Sling Starter shutdown in JobManagerConfiguration
> ---------------------------------------------------------------------
>
> Key: SLING-10938
> URL: https://issues.apache.org/jira/browse/SLING-10938
> Project: Sling
> Issue Type: Task
> Components: Event
> Affects Versions: Event 4.2.24
> Reporter: Michał Goliński
> Priority: Minor
> Attachments: stacktrace.txt
>
>
> On stopping the Sling Starter with Ctrl+C we can occasionally see the
> following stacktrace:
> {code:java}
> ERROR : bundle org.apache.sling.event:4.2.20
> (151)[org.apache.sling.event.impl.jobs.config.JobManagerConfiguration(247)] :
> The activate method has thrown an exception
> java.lang.IllegalArgumentException: Can't create child on a synthetic root
> at
> org.apache.sling.resourceresolver.impl.ResourceResolverImpl.create(ResourceResolverImpl.java:1006)
> ...
> at
> org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:571)
> at
> org.apache.sling.event.impl.support.ResourceHelper.getOrCreateBasePath(ResourceHelper.java:258)
> at
> org.apache.sling.event.impl.jobs.config.JobManagerConfiguration.activate(JobManagerConfiguration.java:225)
> ...
> at
> org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl.executeServiceRegistrations(ServiceUserMapperImpl.java:439)
> at
> org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl.lambda$executeServiceRegistrationsAsync$0(ServiceUserMapperImpl.java:406)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
> at java.base/java.lang.Thread.run(Thread.java:833)
> {code}
> This happens also with bundle version 4.2.24.
> This doesn't happen every time, but I've seen up to seven of these at a time
> (the number of stacktraces changes), see the attached file. This might be
> similar to SLING-10204 , although in the debugger I can see the
> ServiceUserMapped being mentioned, not ResourceResolverFactory.
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