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https://issues.apache.org/jira/browse/SLING-8946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17033416#comment-17033416
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Dirk Rudolph commented on SLING-8946:
-------------------------------------
[~sonagupt] please keep in mind that I am not an Adobe employee and can only
barely reconstruct the dependency tree of the tests you share with what is
available publicly. Also please make sure that you are actually allowed to
share those packages of code here.
In this particular case (test2.zip) I cannot get the tests running. Which
version/patch level of AEM are they executed against?
I don't see how the failure I get relate to the change here.
> Non-deterministic shadowing of resource observation
> ---------------------------------------------------
>
> Key: SLING-8946
> URL: https://issues.apache.org/jira/browse/SLING-8946
> Project: Sling
> Issue Type: Bug
> Components: ResourceResolver
> Affects Versions: Resource Resolver 1.5.34
> Reporter: Dirk Rudolph
> Assignee: Robert Munteanu
> Priority: Critical
> Fix For: Resource Resolver 1.6.18
>
> Attachments: test2.zip
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> The BasicObservationReporter implements shadowing of events being propagated
> per ResourceProvider instance [1]. Assuming we do have 2 ResourceProviders
> registered, where the one shadows the other like this:
> - RP A registered on /
> - RP B registered on /path
> then currently the excludes given to the BasicObservationReporter are
> different depending on either RP A or RP B gets registered first:
> - RP A before RP B => excludes are empty
> - RP B before RP A => excludes contain /path
> This is because only the newly registered RP gets its ProviderContext updated
> [2]
> Same applies if RP B is registered before RP A and gets unregistered. In that
> case the ObservationReporter of RP A stays untouched.
> [1]
> [https://github.com/apache/sling-org-apache-sling-resourceresolver/blob/master/src/main/java/org/apache/sling/resourceresolver/impl/observation/BasicObservationReporter.java#L102]
> [2]
> [https://github.com/apache/sling-org-apache-sling-resourceresolver/blob/master/src/main/java/org/apache/sling/resourceresolver/impl/providers/ResourceProviderTracker.java#L358]
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