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https://issues.apache.org/jira/browse/NIFI-11156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17686636#comment-17686636
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David Handermann commented on NIFI-11156:
-----------------------------------------
Thanks for describing this issue [~bilalb].
Changes to the content of the {{validatexml.invalid.error}} attribute were
introduced as a result of generalized XML processing improvements in NIFI-9901.
The generalized "Validation failed" message comes from the
{{ProcessingException}} thrown in {{StandardSchemaValidator}}. To provide more
details in the error attribute, an ideal solution would walk through the
exception causes and build up the string of messages. That should allow
{{StandardSchemaValidator}} to remain unchanged, and also provide the expected
details in this error attribute value.
> ValidateXml Processor - validatexml.invalid.error = Validation failed
> ---------------------------------------------------------------------
>
> Key: NIFI-11156
> URL: https://issues.apache.org/jira/browse/NIFI-11156
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.19.1
> Environment: CentOS 7.5, RedHat 7.9
> Temurin - 11.0.17+8
> Reporter: Bilal
> Priority: Minor
>
> _NiFi_ environment was upgraded from 1.15.1 to 1.19.1. The following
> situation has occurred with the _ValidateXml_ processor:
> _ValidateXml_ processor works correctly on 1.15.1 and
> _validatexml.invalid.error_ attribute gives an detail information about the
> error.
> _ValidateXml_ processor works on 1.19.1 but _validatexml.invalid.error_
> attribute does not give an detail information about the _error.
> validatexml.invalid.error_ attriubute only contains “{_}Validation failed{_}”
> text.
> Similar problem was talked in cloudera community and Eduu said that:
> ===========
> Hi
> [@ChuckE|https://community.cloudera.com/t5/user/viewprofilepage/user-id/98065]
> using NiFi 1.15.2 seems to add the error detail in the
> "validatexml.invalid.error" attribute.
> For example --> "cvc-minLength-valid: Value '' with length = '0' is not
> facet-valid with respect to minLength '1' for type 'HotelCode"
> This seems to be an issue starting from NiFi 1.16.3, maybe a bug?
> You can use NiFi 1.15.2 or custom code as
> [@SAMSAL|https://community.cloudera.com/t5/user/viewprofilepage/user-id/80381]
> suggested.
> ===========
> Ref: [How to get the reason for invalid
> XML|[https://community.cloudera.com/t5/Support-Questions/How-to-get-the-reason-for-invalid-XML/m-p/348767/highlight/true#M235443]]
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