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https://issues.apache.org/jira/browse/UIMA-3774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marshall Schor reopened UIMA-3774:
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improve design by eliminating sync locks in successful read case.
> make JCasHashMap update thread-safe
> -----------------------------------
>
> Key: UIMA-3774
> URL: https://issues.apache.org/jira/browse/UIMA-3774
> Project: UIMA
> Issue Type: Bug
> Components: Core Java Framework
> Affects Versions: 2.6.0SDK
> Reporter: Marshall Schor
> Assignee: Marshall Schor
> Fix For: 2.6.0SDK
>
>
> A recent fix to support multi-thread access in read-only mode to the CAS
> needs the JCasHashMap to be thread-safe for updates, because 2 or more
> iterators might simultaneously want to update the map
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