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https://issues.apache.org/jira/browse/FELIX-5485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16923049#comment-16923049
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Renat Sabitov edited comment on FELIX-5485 at 9/5/19 5:05 AM:
--------------------------------------------------------------
Same issue in Felix 6.0.3
a check for usage count has gone from
org.apache.felix.framework.ServiceRegistry#getServicesInUse
was (Author: rsabitov):
Same issue in Felix 6.0.3
> ServiceReference#getUsingBundles() returns usages with 0 count
> --------------------------------------------------------------
>
> Key: FELIX-5485
> URL: https://issues.apache.org/jira/browse/FELIX-5485
> Project: Felix
> Issue Type: Bug
> Components: Framework
> Affects Versions: framework-5.6.0
> Reporter: Renat Sabitov
> Assignee: Guillaume Nodet
> Priority: Minor
> Fix For: framework-5.6.2
>
> Attachments: FELIX-5485.diff
>
>
> Javadoc for ServiceReference#getUsingBundles() states
> {quote}
> Specifically, this method returns the bundles whose usage count for that
> service is greater than zero.
> {quote}
> However, the implementation uses
> ServiceRegistry#getUsingBundles(ServiceReference<?> ref), which returns
> usages even if usage count is 0.
> The usage count is 0, because ServiceRegistry#ungetService doesn't call
> ServiceRegistry#flushUsageCount for non-prototype services:
> {quote}
> // If the registration is invalid or the usage count for a
> prototype
> // reached zero, then flush it. Non-prototype services are
> not flushed
> // on ungetService() when they reach 0 as this introduces a
> race
> // condition of concurrently the same service is obtained via
> getService()
> {quote}
> Expected:
> ServiceReference#getUsingBundles() doesn't return usages with 0 count
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