Christopher Leung created CXF-6666:
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Summary: Permit "unknown" SOAP message header elements and
attributes to prevent Unmarshalling Error: unexpected element
Key: CXF-6666
URL: https://issues.apache.org/jira/browse/CXF-6666
Project: CXF
Issue Type: Wish
Components: JAXB Databinding, Soap Binding
Affects Versions: 3.0.2
Reporter: Christopher Leung
How does one disable the strict validation on the *SOAP message header* that
causes a "{{Unmarshalling Error: unexpected element}}" exception when unknown
elements and attributes are encountered in the unmarshalling process. (In this
case _unknown_ means that elements and attributes are present in the incoming
SOAP header but do not exist in the object model.)
The flow seems to be that
[ReadHeadersInterceptor|https://cxf.apache.org/javadoc/latest/org/apache/cxf/binding/soap/interceptor/ReadHeadersInterceptor.html]
creates a {{DataReader}} that creates an unmarshaller. The unmarshaller
determines whether the custom {{ValidationEventHandler}},
{{WSUIDValidationHandler}}, is set or not. {{WSUIDValidationHandler}} is
ultimately responsible for throwing the exception.
There appears to be a couple of ways at least to disable
{{WSUIDValidationHandler}}. One is to set the {{setEventHandler}} flag of
{{DataReaderImpl}} to false. The other is to ensure the {{veventHandler}} field
of the same class is set to a more lenient custom {{ValidationEventHandler}}.
I cannot determine a way in which to manipulate either of these two fields in
{{DataReaderImpl}}. Is there a way to do it?
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