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https://issues.apache.org/jira/browse/CXF-6231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14298453#comment-14298453
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Akitoshi Yoshida commented on CXF-6231:
---------------------------------------
@Guillaume
I think there is something interfering in your configuration with the xml
document generation. Can you describe how your endpoint is configured? Which
features and interceptors are used?
There was a change in CXF regarding the WSDL generation to actually fix other
issues and that could be causing this regression. If we can easily reproduce
your error, that will be helpful.
regards, aki
> Getting the wsdl from a cxf webservice throws an exception
> ----------------------------------------------------------
>
> Key: CXF-6231
> URL: https://issues.apache.org/jira/browse/CXF-6231
> Project: CXF
> Issue Type: Bug
> Affects Versions: 2.7.14
> Reporter: Guillaume Grossetie
>
> Hi,
> We've updated CXF from 2.6.2 to 2.7.14 and we are experiencing this issue.
> When using WSDLGetOutInterceptor we get the following exception:
> {code}Can not output XML declaration, after other output has already been
> done.{code}
> {code}
> org.apache.cxf.interceptor.Fault: Can not output XML declaration, after other
> output has already been done.
> at
> org.apache.cxf.frontend.WSDLGetOutInterceptor.handleMessage(WSDLGetOutInterceptor.java:61)
> at
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
> at
> org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:83)
> at
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
> at
> org.apache.cxf.phase.PhaseInterceptorChain.doInterceptStartingAt(PhaseInterceptorChain.java:424)
> at
> org.apache.cxf.frontend.WSDLGetInterceptor.handleMessage(WSDLGetInterceptor.java:97)
> at
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
> at
> org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
> at
> org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:249)
> at
> org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:248)
> at
> org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:222)
> at
> org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:153)
> at
> org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:171)
> at
> org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286)
> at
> org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:211)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> at
> org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:262)
> at
> weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
> at
> weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
> at
> weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
> at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
> at
> weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
> at
> weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
> at
> weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
> at
> weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
> at
> weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
> at
> weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
> at
> weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
> at
> weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
> at
> weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
> at
> weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
> at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
> at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
> Caused by: javax.xml.stream.XMLStreamException: Can not output XML
> declaration, after other output has already been done.
> at
> com.ctc.wstx.sw.BaseStreamWriter.throwOutputError(BaseStreamWriter.java:1537)
> at
> com.ctc.wstx.sw.BaseStreamWriter.reportNwfStructure(BaseStreamWriter.java:1566)
> at
> com.ctc.wstx.sw.BaseStreamWriter.doWriteStartDocument(BaseStreamWriter.java:646)
> at
> com.ctc.wstx.sw.BaseStreamWriter.writeStartDocument(BaseStreamWriter.java:634)
> at
> com.ctc.wstx.sw.BaseStreamWriter.writeStartDocument(BaseStreamWriter.java:622)
> at org.apache.cxf.staxutils.StaxUtils.writeDocument(StaxUtils.java:888)
> at
> org.apache.cxf.frontend.WSDLGetOutInterceptor.handleMessage(WSDLGetOutInterceptor.java:56)
> ... 32 more
> {code}
> I think this regression was introduced in:
> https://github.com/apache/cxf/commit/e0d4f15fd6f1b4352c189442e5f2902303bcd5cb
> Thanks
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