[jira] [Created] (UIMA-4499) Pears and local External Resources

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

Marshall Schor created UIMA-4499:
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             Summary: Pears and local External Resources
                 Key: UIMA-4499
                 URL: https://issues.apache.org/jira/browse/UIMA-4499
             Project: UIMA
          Issue Type: Improvement
          Components: Core Java Framework
            Reporter: Marshall Schor
            Priority: Minor


Currently, the design for External Resources presumes they can be used by any annotator, including those with a PEAR.  This is supported by having UIMA load resources associated with External Resources using the main UIMA class loader, and in particular, not using the PEAR's special isolating class loader.

This causes an issue if part of the PEAR code references the same classes as the external resource, and these are found in the PEAR class path.  You end up with two different versions of the class, loaded under the same class loader, and things break. 

A possible fix is to treat external resource definitions that occur with a PEAR as only visible to that PEAR, and load them under the PEAR's class loader.



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