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Posted to issues@nifi.apache.org by "Steven Youtsey (JIRA)" <ji...@apache.org> on 2019/03/15 17:48:00 UTC

[jira] [Created] (NIFI-6127) AttributeExpressionLanguage - 'match' throws NPE when comparison object is a non existing flowfile attribute

Steven Youtsey created NIFI-6127:
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             Summary: AttributeExpressionLanguage - 'match' throws NPE when comparison object is a non existing flowfile attribute
                 Key: NIFI-6127
                 URL: https://issues.apache.org/jira/browse/NIFI-6127
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework
    Affects Versions: 1.8.0
            Reporter: Steven Youtsey


MatchesEvaluator, line 56 - When the flow file attributes do not contain the attribute specified in the comparison portion of a 'matches' operation, the Pattern.compile(null) throws an NPE.

Since there is no guarantee that a specified flow file attribute is present, this should simply return BooleanQueryResult(false) if the desired attribute does not exist.



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