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https://issues.apache.org/jira/browse/UIMA-4542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marshall Schor resolved UIMA-4542.
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Resolution: Fixed
> edge cases need Flattened index invalidation
> --------------------------------------------
>
> Key: UIMA-4542
> URL: https://issues.apache.org/jira/browse/UIMA-4542
> Project: UIMA
> Issue Type: Bug
> Components: Core Java Framework
> Affects Versions: 2.8.0SDK
> Reporter: Marshall Schor
> Assignee: Marshall Schor
> Fix For: 2.8.1SDK
>
>
> There are some edge cases that invalidate the flattened indexes, that are not
> accounted for. One is what happens when a pipeline transitions from non-JCas
> to JCas generators. Any flattened index built before this transition will
> have the incompatible kinds of Java Cover classes.
> The other happens within a PEAR context - during that part of a pipeline, the
> classpath is altered, and the PEAR could be redefining the Java cover
> classes.
> There may be others. For now, because measurements in real-life situations
> didn't show much if any improvement, the fix is to disable this feature.
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