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https://issues.apache.org/jira/browse/FELIX-5589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15986467#comment-15986467
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Karl Pauls commented on FELIX-5589:
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I did a similar fix for the ImmutableList in r1792870.
> reduce memory usage of BundleRequirementImpl / BundleCapabilityImpl
> -------------------------------------------------------------------
>
> Key: FELIX-5589
> URL: https://issues.apache.org/jira/browse/FELIX-5589
> Project: Felix
> Issue Type: Improvement
> Components: Framework
> Affects Versions: framework-5.6.2
> Reporter: Fabian Lange
> Assignee: Karl Pauls
> Priority: Minor
> Fix For: framework-5.6.4
>
> Attachments: Screen Shot 2017-03-13 at 19.52.55.png
>
>
> Currently BundleRequirementImpl and BundleCapabilityImpl might allocate new
> immutable maps when params are empty. This was pointed out by a profiling
> session.
> the fix is easy: use Collections.EMPTY_MAP
> (pr coming)
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