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https://issues.apache.org/jira/browse/UIMA-4541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marshall Schor resolved UIMA-4541.
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Resolution: Fixed
> CasCopier edge use case copies multiple DocumentAnnotation instances
> --------------------------------------------------------------------
>
> Key: UIMA-4541
> URL: https://issues.apache.org/jira/browse/UIMA-4541
> Project: UIMA
> Issue Type: Bug
> Components: Core Java Framework
> Affects Versions: 2.7.0SDK
> Reporter: Marshall Schor
> Assignee: Marshall Schor
> Fix For: 2.8.1SDK
>
>
> The normal envisioned use case for the cas copier is
> 1) make an instance of the cas copier, specifying the two CASs
> 2) do an operation (copy a cas, copy a cas-view, copy some FSs)
> Some users are in a sense reusing the cas copier instance; they make an
> instance, and then copy some FSs, and then maybe copy a view. The general
> contract for the CasCopier instance is that it "remembers" what FSs have been
> copied, and doesn't copy them again.
> There was an optimization that tried to speed up the isDocumentAnnotation
> test - the casCopier instance remembers what the srcCasDocumentAnnotation is,
> once it's looked up. Unfortunately, each view has its own; there was code to
> re-look it up but it wasn't being set for all possible user invoked paths.
> Note this is only an issue for use cases which are using the same casCopier
> instance both for copying individual FSs and for copying views.
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