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https://issues.apache.org/jira/browse/NIFI-6320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph Witt resolved NIFI-6320.
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Resolution: Fixed
> ExtractHL7Attributes should better tolerate custom segments (e.g. Z segments)
> -----------------------------------------------------------------------------
>
> Key: NIFI-6320
> URL: https://issues.apache.org/jira/browse/NIFI-6320
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.9.2
> Environment: OSX iMac
> Reporter: Gary Teichrow
> Priority: Minor
> Labels: Processor, hl7
> Fix For: 1.10.0
>
> Original Estimate: 1h
> Time Spent: 20m
> Remaining Estimate: 40m
>
> If a user is processing an HL7 message that contains custom segments (e.g. Z
> segments), an NPE is thrown at line 288 in ExtractHL7Attributes.java upon
> encountering that segment. The call to segment.getNames() will return a list
> of Nulls from HAPI for this custom segment.
> Added a check whereby, if the user is using the "Use Segment Names" option in
> the ExtractHL7Attributes processor and the HL7 message being processed
> contains custom user segments (e.g., Z Segments), the code will downgrade to
> returning the Segment Label as it does when this option is not used. Without
> this a null pointer is thrown at line 288.
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