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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