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https://issues.apache.org/jira/browse/SLING-11912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17735639#comment-17735639
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Konrad Windszus commented on SLING-11912:
-----------------------------------------
This sounds like a bug in the Felix web console. IMHO empty values are not
reasonable to support here.
> Empty configuration in ServiceUserMapperImpl's Required Principal/User
> validators results in 503
> ------------------------------------------------------------------------------------------------
>
> Key: SLING-11912
> URL: https://issues.apache.org/jira/browse/SLING-11912
> Project: Sling
> Issue Type: Bug
> Components: Service User Mapper
> Affects Versions: Service User Mapper 1.5.6
> Reporter: Sagar Miglani
> Assignee: Sagar Miglani
> Priority: Major
> Fix For: Service User Mapper 1.5.8
>
>
> 1) In webconsole configuration manager, open {{Apache Sling Service User
> Mapper Serviceorg.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl}}
> 2) Before making any change the configuration is:
> {code:xml}
> :org.apache.felix.configadmin.revision:=L"1"
> require.validation=B"true"
> service.pid="org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl"
> user.enable.default.mapping=B"false"
> {code}
> 3) Without changing the configuration click on {{save}}, the configuration
> becomes:
> {code:xml}
> :org.apache.felix.configadmin.revision:=L"8"
> require.validation=B"true"
> required.principal.validators=[ \
> "", \
> ]
> required.user.validators=[ \
> "", \
> ]
> service.pid="org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl"
> user.default=""
> user.enable.default.mapping=B"false"
> {code}
> i.e {{required.principal.validators}} and {{required.user.validators}} have
> an empty value and due to this all sling requests return
> {code:xml}
> "HTTP ERROR 503 ServletResolver service missing, cannot service requests".
> {code}
> This persistence of empty configuration seems to be behaviour of
> {{felix.webconsole}}. But IMO sling requests should not fail due to empty
> values.
> (The above scenario was reproduced in an AEM instance)
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