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https://issues.apache.org/jira/browse/IBATIS-519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12623370#action_12623370
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Hideyuki Suzumi commented on IBATIS-519:
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com.ibatis.sqlmap.engine.mapping.result.ResultMap#dataExchange
is thread-unsafe.
This is a very serious bug.
This bug crashes our business system many times on a day.


> Probably, remapResults is thread-unsafe
> ---------------------------------------
>
>                 Key: IBATIS-519
>                 URL: https://issues.apache.org/jira/browse/IBATIS-519
>             Project: iBatis for Java
>          Issue Type: Bug
>          Components: SQL Maps
>    Affects Versions: 2.3.0, 2.3.2, 2.3.3
>            Reporter: Hideyuki Suzumi
>            Priority: Critical
>         Attachments: ibatis-remapResults-problem.zip, ibatis-standalone.zip
>
>
> When remapResults is true, The list of the query result often contains null.
> The attached sample program can reproduce it.
> Probably, remapResults is thread-unsafe.

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