Hi
On 19/06/12 14:11, Daniel Hagen wrote:
Hi,
we've been using CXF (currently 2.1.3, soon 2.5.4) on the server side for some
time now (in Tomcat 6.0 with Spring 3.0 if that is of any interest).
We have one client that - for whatever reason - performs HTTP HEAD-Requests to
the WSDL-Urls (http://.../services/Endpoint?wsdl) before performing it's calls.
We only recently noticed that those calls fail under certain circumstances with cxf 2.1.3
due to an exception "org.apache.cxf.binding.soap.SoapFault: Error reading
XMLStreamReader." in the class ReadHeadersInterceptor (See below for full
stacktrace). From what we've been able to discern so far, the problem seems to be
reproducable only when the server has been just started and no HTTP GET requests have
been made to the WSDL URL yet. Once the first HTTP GET to that URL has been sent,
subsequent HTTP HEAD Requests succeed.
With CXF 2.5.4 those Exceptions are easier to reproduce - they are thrown every
time an HTTP HEAD request is sent to one of the WSDLs, regardless whether a
HTTP GET has previously been sent.
After stepping through the CXF 2.5.4 code I would guess that the problem is in
WSDLGetInterceptor - for GET requests the interceptor performs it's work and finishes
with a call to "message.getInterceptorChain().abort();", for HEAD requests it
returns immediatedly without that call to abort() which causes the ReadHeadersInterceptor
to be called, which then promptly fails.
Is this a bug in CXF or a configuration issue? If it is a bug is there a way to
work around this? (Other than changing the clients so they don't send HTTP Head
requests)
I'm not sure how HEAD WSDL queries have to be managed on the JAX-WS
path, but you can definitely work around this issue by registering a
custom interceptor that will be installed before WSDlGetInterceptor (you
can request it explicitly in the constructor of the custom interceptor
but not be even needed), which will check if it is HEAD and if yes then
replace the method name with GET
HTH, Sergey
Best Regards
Daniel
This is the stacktrace logged by CXF:
org.apache.cxf.binding.soap.SoapFault: Error reading XMLStreamReader.
at
org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:183)
at
org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:56)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:78)
at
org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:92)
at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:285)
at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:168)
at
org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:175)
at
org.apache.cxf.transport.servlet.AbstractCXFServlet.doGet(AbstractCXFServlet.java:157)
at javax.servlet.http.HttpServlet.doHead(HttpServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
at
de.konsens.gda.server.ServiceUrlRewriteFilter.forwardToBasePath(ServiceUrlRewriteFilter.java:51)
at
de.konsens.gda.server.ServiceUrlRewriteFilter.doFilter(ServiceUrlRewriteFilter.java:29)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:662)
Caused by: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
at [row,col {unknown-source}]: [1,0]
at
com.ctc.wstx.sr.StreamScanner.throwUnexpectedEOF(StreamScanner.java:686)
at
com.ctc.wstx.sr.BasicStreamReader.handleEOF(BasicStreamReader.java:2134)
at
com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2040)
at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069)
at
com.ctc.wstx.sr.BasicStreamReader.nextTag(BasicStreamReader.java:1095)
at
org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:85)
... 31 more
--
Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
Blog: http://sberyozkin.blogspot.com
