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https://issues.apache.org/jira/browse/FELIX-6633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom Watson closed FELIX-6633.
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> Dynamic references may miss events while causing deactivation
> -------------------------------------------------------------
>
> Key: FELIX-6633
> URL: https://issues.apache.org/jira/browse/FELIX-6633
> Project: Felix
> Issue Type: Bug
> Components: Declarative Services (SCR)
> Affects Versions: scr-2.2.6
> Reporter: Tom Watson
> Assignee: Tom Watson
> Priority: Major
> Fix For: scr-2.2.8, scr-2.2.10
>
>
> This issue sounds similar to issue FELIX-6616 but the cause is much
> different. It still involves multiple threads that are
> registering/unregistering services that are referenced by a dynamic reference
> using 1..1 or m..n where m is >0 (set through configuration admin).
> The scenario involves one thread unregistering a service that causes
> deactivation while at the same time another thread is registering a service
> that would again satisfy the cardinality of the reference. When this
> happens the tracker can get into a state where it misses the registration
> event while deactivating.
> There are probably several ways to fix this, but the most simple seems to be
> to add a call to recheck the dependency manager after deactivation. This is
> similar to the other reference types that are not dynamic.
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