[jira] [Created] (UIMA-5481) Ruta: string variables with null values

[JIRA]

Peter Klügl created UIMA-5481:
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             Summary: Ruta: string variables with null values
                 Key: UIMA-5481
                 URL: https://issues.apache.org/jira/browse/UIMA-5481
             Project: UIMA
          Issue Type: Improvement
          Components: Ruta
    Affects Versions: 2.6.0ruta
            Reporter: Peter Klügl


Currently, string variables cannot be null, only ""



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