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https://issues.apache.org/jira/browse/CXF-7087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15571744#comment-15571744
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René Neumann commented on CXF-7087:
-----------------------------------
The issue does not require a custom XMLOutputFactory. Simply setting
FORCE_START_DOCUMENT for an entry point and then trying to access the WSDL
triggers the same problem.
As pointed out by Guillaume, the swapped parameters are the culprit.
The real problem here is probably the strange API offering
{code:java}
public static void writeDocument(Document d, XMLStreamWriter writer, boolean
writeProlog, boolean repairing)
{code}
and
{code:java}
public static void writeDocument(Document d, XMLStreamWriter writer, boolean
repairing)
{code}
That is, making an argument optional that is not the last thereby betraying the
expectation that one can go from short version to the long one by simply adding
the defaulted paramater.
Unfortunately, I doubt this can be changed now :(
> Getting the wsdl from a cxf webservice with custom XMLOuputFactory throws an
> exception
> --------------------------------------------------------------------------------------
>
> Key: CXF-7087
> URL: https://issues.apache.org/jira/browse/CXF-7087
> Project: CXF
> Issue Type: Bug
> Reporter: Guillaume Pansier
>
> I defined a service endpoint with a custom XmlOutputFactory
> {code:xml}
> <jaxws:endpoint id="myWebService" implementorClass="a.b.c.MyService"
> implementor="#Mybean" address="/myService">
> <jaxws:properties>
> <entry key="javax.xml.XMLOutputFactory">
> <ref bean="invalidCharacterReplacingXmlOutputFactory"/>
> </entry>
> </jaxws:properties>
> </jaxws:endpoint>
> {code}
> When Using the WSDLGetOutInterceptor, I get the following error;
> Can not output XML declaration, after other output has already been done.
> The StaxOutputInterceptor sets the flag FORCE_START_DOCUMENT to true when
> using a custom xmlOutputFacory, then writes the prolog. The
> WSDLGetOutInterceptor writes it again and throws the exception.
> This was supposed to be fixed with commit
> 25f0eb7f955a84baf6c3b634ff316cb831a2acfa, with version 3.3 if I'm
> correct(changed class: WSDLGetOutInterceptor, commit message: Write the
> prolog only if it hasn't already been written). But I think the change is not
> correct:
> {code}
> - StaxUtils.writeNode(doc, writer, true);
> + StaxUtils.writeDocument(doc, writer, true,
> +
> !MessageUtils.getContextualBoolean(message,
> +
> StaxOutInterceptor.FORCE_START_DOCUMENT,
> +
> false));
> {code}
> Knowing that the signature of StaxUtils.writeDocument is:
> {code}
> public static void writeDocument(Document d, XMLStreamWriter writer, boolean
> writeProlog, boolean repairing)
> {code}
> That means that the boolean reparing depends on the flag FORCE_START_DOCUMENT
> from version 3.3, whereas the boolean writeProlog is always true ! To me, it
> seems like the two parameters have been swapped.
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