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https://issues.apache.org/jira/browse/COLLECTIONS-700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16670191#comment-16670191
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Gary Gregory commented on COLLECTIONS-700:
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The whole idea is _avoid_ doing just that. Synchronizing the map locks the
whole map on each call, a concurrent version would be thread-safe but not lock
the whole map. Also, synchronizing the whole map still does not fix
BEANUTILS-509, see that ticket.
> Add a ConcurrentWeakHashMap
> ---------------------------
>
> Key: COLLECTIONS-700
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-700
> Project: Commons Collections
> Issue Type: New Feature
> Components: Map
> Reporter: Gary Gregory
> Priority: Major
>
> Add a {{ConcurrentWeakHashMap}}: A concurrent
> {{[WeakHashMap|https://docs.oracle.com/javase/8/docs/api/java/util/WeakHashMap.html]}}.
> A need for this was found to best support BeanUtils's BEANUTILS-509
> This issue is looking for a volunteer.
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