James Grahn created AXIOM-442:
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Summary: Null pointer exception in MTOM validation
Key: AXIOM-442
URL: https://issues.apache.org/jira/browse/AXIOM-442
Project: Axiom
Issue Type: Bug
Affects Versions: 1.2.12
Reporter: James Grahn
As part of an Axis2 workflow, my code validates incoming messages against
schemas. This seems to work in all cases except when the incoming message
contains an MTOM attachment.
The code constructs a Source object for the part of the message to be
validated, then calls the "validate" method on a properly constructed
javax.xml.validation.Validator object:
Source validateMe = new OMSource(messagePart);
validator.validate(validateMe);
The error generated looks like this:
java.lang.NullPointerException
at
org.apache.axiom.om.impl.llom.OMTextImpl.getTextCharacters(OMTextImpl.java:272)
at
org.apache.axiom.om.impl.serialize.OMXMLReader.generateEvents(OMXMLReader.java:196)
at
org.apache.axiom.om.impl.serialize.OMXMLReader.generateEvents(OMXMLReader.java:166)
at
org.apache.axiom.om.impl.serialize.OMXMLReader.generateEvents(OMXMLReader.java:163)
at org.apache.axiom.om.impl.serialize.OMXMLReader.parse(OMXMLReader.java:83)
at org.apache.axiom.om.impl.serialize.OMXMLReader.parse(OMXMLReader.java:73)
at org.apache.xerces.jaxp.validation.ValidatorHandlerImpl.validate(Unknown
Source)
at org.apache.xerces.jaxp.validation.ValidatorImpl.validate(Unknown Source)
at javax.xml.validation.Validator.validate(Unknown Source)
----
By the time it reaches my handler, I'm not fully certain what should be in the
MTOM attachment element should contain, as it's reasonable to assume that the
attachment has been extracted by then. A NullPointerException doesn't seem
appropriate, however.
A logging statement does show the attachment inline, encoded in Base64 (though
I believe all incoming MTOM is represented that way if the envelope is printed
for a log).
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