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https://issues.apache.org/jira/browse/AXIS2-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean Marc updated AXIS2-5044:
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Attachment: axis2.xml
JSONSearchModel.java
Sample client that generates a simple json request. Must be used with Jettison
v1.2+, and the NPE error happens before the actual request is sent, so the
endpoint is never called.
> JSONMessageFormatter does not call startDocument on XMLWriter with Mapped
> convention
> -------------------------------------------------------------------------------------
>
> Key: AXIS2-5044
> URL: https://issues.apache.org/jira/browse/AXIS2-5044
> Project: Axis2
> Issue Type: Bug
> Components: modules
> Reporter: Jean Marc
> Attachments: JSONSearchModel.java, axis2.xml
>
> Original Estimate: 5m
> Remaining Estimate: 5m
>
> When Mapped convention is used, JSONMessageFormatter creates an
> XMLStreamWriter from Jettison library of type MappedXMLStreamWriter
> and executes the following code
> XMLStreamWriter jsonWriter = getJSONWriter(bytesOut);
> element.serializeAndConsume(jsonWriter);
> jsonWriter.writeEndDocument();
> at 3 places in the class (in getBytes(), getTargetAddress() and writeTo() ).
> In the above code, there is no call to jsonWriter.writeStartDocument().
> This works for Jettison library v1.1 and below because it does not follow the
> SAX event flow, but Jettison v1.2 and above have been refactored to respect
> the SAX event chain,
> and the XMLStreamWriter expects the calling serializer to generate a
> startDocument() event at the beginning.
> Actually, the axis-json lib 1.5.4 does not specify a Maven version dependency
> on Jettison so any version should do, but with Jettison v1.2+
> a simple client trying to serialize a OMElement to send a soap message
> triggers a NPE in Jettison when the last endElement() event is triggered
> because the call to startDocument has never been made.
> Simple solution is to add jsonWriter.writeStartDocument() before calling
> element.serializeAndConsume().
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