[jira] [Created] (UIMA-4126) if allow_duplicate_add_to_indices, delta CAS needs to remove all

["Marshall Schor (JIRA)" <de...@uima.apache.org>]

Marshall Schor created UIMA-4126:
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             Summary: if allow_duplicate_add_to_indices, delta CAS needs to remove all 
                 Key: UIMA-4126
                 URL: https://issues.apache.org/jira/browse/UIMA-4126
             Project: UIMA
          Issue Type: Bug
          Components: Core Java Framework
            Reporter: Marshall Schor
            Assignee: Marshall Schor
             Fix For: 2.7.0SDK


UIMA-4100 fixes an issue around Delta deserialization - when updating an existing, indexed FS, by removing the FS from the index before updating the feature values, and then adding it back.  

If the JVM property uima.allow_duplicate_add_to_indices is defined, then it's possible the FS may be added to the indices multiple times.  To prevent index corruption, in this case, loop the remove-from-index operation until it fails to find the item in the index, so it removes all instances.  And when re-adding it back, add it back the same number of times it was removed.





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