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https://issues.apache.org/jira/browse/LUCENE-5586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13965118#comment-13965118
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ASF subversion and git services commented on LUCENE-5586:
---------------------------------------------------------
Commit 1586240 from jpou...@apache.org in branch 'dev/branches/branch_4x'
[ https://svn.apache.org/r1586240 ]
LUCENE-5586: BufferedChecksumIndexInput.clone now throws an
UnsupportedOperationException.
> BufferedChecksumIndexInput is not cloneable
> -------------------------------------------
>
> Key: LUCENE-5586
> URL: https://issues.apache.org/jira/browse/LUCENE-5586
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 4.8
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-5586.patch, LUCENE-5586.patch
>
>
> {{BufferedChecksumIndexInput}} implements {{Cloneable}}, yet its close method
> would return a shallow copy that still wraps the same {{IndexInput}} and
> {{Checksum}}. This is trappy, because reading on the clone would also read on
> the original instance and update the checksum.
> Since {{Checksum}} are not cloneable, I think {{ChecksumIndexInput.clone}}
> should just throw an UOE.
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