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https://issues.apache.org/jira/browse/MYFACES-4134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16130193#comment-16130193
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Dennis Kieselhorst commented on MYFACES-4134:
---------------------------------------------

Only four classes are in use:
* org.apache.commons.collections.map.LRUMap
* org.apache.commons.collections.Predicate
* org.apache.commons.collections.CollectionUtils.filter
* org.apache.commons.collections.iterators.EmptyIterator

I'm not aware of a LRUMap in Java 8 but this could be implemented based on 
LinkedHashMap.

What I just noticed: If org.apache.myfaces.EL_RESOLVER_PREDICATE is in use, 
users will have to migrate their Predicates to commons-collections4 too.

> Update to commons-collections 4
> -------------------------------
>
>                 Key: MYFACES-4134
>                 URL: https://issues.apache.org/jira/browse/MYFACES-4134
>             Project: MyFaces Core
>          Issue Type: Improvement
>    Affects Versions: 2.3.0-beta
>            Reporter: Dennis Kieselhorst
>            Priority: Minor
>             Fix For: 2.3.0
>
>
> Should we update to commons-collection 4 for 2.3.0? If nobody objects, I can 
> do the changes...



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