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https://issues.apache.org/jira/browse/COLLECTIONS-455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13685993#comment-13685993
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Thomas Neidhart commented on COLLECTIONS-455:
---------------------------------------------
In r1493940 I have removed the remaining todos as I want to keep them as is for
now to make a 4.0 release.
Thanks for the effort on the other classes!
> AbstractDualBidiMap<K, V> has several mutable protected fields
> --------------------------------------------------------------
>
> Key: COLLECTIONS-455
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-455
> Project: Commons Collections
> Issue Type: Bug
> Reporter: Sebb
> Fix For: 4.0
>
>
> Any non-private mutable fields make it much harder to ensure thread-safety as
> well as making it very difficult to test thoroughly.
> The fields should be made private.
> If protected write access really is needed, setter methods should be used.
> These methods can take any necessary precautions to ensure thread-safety.
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