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https://issues.apache.org/jira/browse/SLING-7234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16285220#comment-16285220
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Oliver Lietz commented on SLING-7234:
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[~karlpauls], thanks for looking into it. The cycle-issue is indeed unrelated,
but there are more issues besides SLING-7301.
[~radu.cotescu], I was disrupted when migrating to R6 and Carsten took over and
checking for null was unfortunately missed.
[~ivoleitao], the versions in Sling's Karaf Features are more tested and
"safe". Downgrade to 2.0.46 until all issues are fixed.
> ServiceFactory.getService() resulted in a cycle in sling karaf
> ---------------------------------------------------------------
>
> Key: SLING-7234
> URL: https://issues.apache.org/jira/browse/SLING-7234
> Project: Sling
> Issue Type: Bug
> Components: Karaf, Scripting
> Affects Versions: Scripting Core 2.0.50
> Environment: Debian linux, jdk 1.8.0_151-b12
> Reporter: Ivo Leitão
> Assignee: Oliver Lietz
> Attachments: clean.log.1, grep-errors.log, sample.log.1
>
>
> Hello,
> Once in a while on the first startup of Sling on Karaf I'm seeing the
> exception ServiceFactory.getService() resulted in a cycle. This does not
> happen every time only on some startups.
> After the first startup on the next restart this exception does not appear
> anymore.
> I've picked a sample of the exception. Unfortunately this seems like a
> concurrency issue and therefore much harder to find a pattern but it happens
> mostly with sling scripting. I've seen other exceptions also with sling
> scripting but this one is the most common
> I've uploaded two log files:
> clean.log.1 with a clean startup and
> sample.log.1 with the aforementioned exception
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