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https://issues.apache.org/jira/browse/ZOOKEEPER-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573139#comment-14573139
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Hitoshi Mitake commented on ZOOKEEPER-2194:
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Hi [~rgs],
Thanks a lot for your review and merging!
> Let DataNode.getChildren() return an unmodifiable view of its children set
> --------------------------------------------------------------------------
>
> Key: ZOOKEEPER-2194
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2194
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.4.6, 3.5.0
> Reporter: Hitoshi Mitake
> Assignee: Hitoshi Mitake
> Priority: Trivial
> Fix For: 3.4.7, 3.5.1, 3.6.0
>
> Attachments: ZOOKEEPER-2194-v2.patch, ZOOKEEPER-2194.patch
>
>
> Current DataNode.getChildren() directly returns a pointer of its private
> member, children. However, the member should be modified through addChild()
> and removeChild(). Callers of getChildren() shouldn't modify it directly.
> For preventing the direct modification by the callers, this patch lets
> getChildren() return an unmodifiable view of its children set. If the callers
> try to modify directly, runtime exception will be risen.
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