Hi David,

I do not see CXF in your stack trace. Are you sure that you have CXF jars in 
classpath?
Actually it looks that you use default JDK jaxws implementation.

Regards,
Andrei.


> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> Sent: Donnerstag, 10. April 2014 19:59
> To: [email protected]
> Subject: Getting java.lang.ClassCast Exception: javax.xml.ws.Holder cannot be
> cast to java.lang.String
> 
> Hi CXF Community,
> 
> I've been working with CXF for a several months now on a NonStop server.
> I've built sychronous demo clients and servlets with no problems.  I'm now
> trying to build an asynchronous client but I can't seem to get past the 
> following
> ClassCastException which occurs as soon as I call...
> 
> AsyncDemoResponse0 reply = asyncDemoResp.get();
> 
> i.e., same point as  GreetMeSometimeResponse reply =
> greetMeSomeTimeResp.get(); from example page.
> 
> Just like in the Async Consumer example page, wsl2java generates 3 method in
> the web service interface class, i.e., synchronous, polling and callback.
> When I invoke the synchronous form everything works fine.
> 
> My thought is this is a newbie error but if this description is not obvious, 
> I can
> provide more information on advisement.
> 
> Also note when I call my /Response<GreetMeSometimeResponse>
> greetMeSomeTimeResp =
>       port.greetMeSometimeAsync(System.getProperty("user.name"));
> /*equivalent*, namely, (/Response<AsyncDemoResponse0> asyncDemoResp =
> asyncDemoPort.asyncDemoAsync(_asyncDemo_clientNo,
> _asyncDemo_groupNo, _asyncDemo_certNo/); no activity is detected on the
> servlet (service) side, i.e., nothing appears in the web server's access.log.
> 
> Any thought would be appreciated.
> 
> =2014-04-10 13:50:18,485 ERROR [main] trace.event           - Web Service
> invocation error (javax.xml.ws.WebServiceException:
> java.lang.ClassCastException: javax.xml.ws.Holder cannot be cast to
> java.lang.String).
> java.util.concurrent.ExecutionException: javax.xml.ws.WebServiceException:
> java.lang.ClassCastException: javax.xml.ws.Holder cannot be cast to
> java.lang.String
>         at
> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
>         at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>         at
> com.telus.health.pdd.business.RddsReqProcessor.processRequest(RddsReqProc
> essor.java:691)
>         at
> com.telus.health.pdd.access.DbRequestHandler.processRequest(DbRequestHan
> dler.java:391)
>         at
> com.telus.health.pdd.access.DbRequestHandler.main(DbRequestHandler.java:1
> 39)
> Caused by: javax.xml.ws.WebServiceException: java.lang.ClassCastException:
> javax.xml.ws.Holder cannot be cast to java.lang.String
>         at
> com.sun.xml.internal.ws.client.AsyncInvoker.run(AsyncInvoker.java:59)
>         at
> com.sun.xml.internal.ws.client.AsyncResponseImpl.run(AsyncResponseImpl.java
> :73)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.j
> ava:886)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:
> 908)
>         at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.ClassCastException: javax.xml.ws.Holder cannot be cast to
> java.lang.String
>         at
> com.telus.health.pdd.asyncdemo.AsyncDemo$JaxbAccessorF_certNo.set(FieldA
> ccessor_Ref.java:45)
>         at
> com.sun.xml.internal.bind.v2.runtime.reflect.Accessor.setUnadapted(Accessor.j
> ava:155)
>         at
> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl$7.set(JAXBContextImpl.
> java:926)
>         at
> com.sun.xml.internal.ws.client.sei.BodyBuilder$DocLit.build(BodyBuilder.java:2
> 07)
>         at
> com.sun.xml.internal.ws.client.sei.BodyBuilder$JAXB.createMessage(BodyBuild
> er.java:88)
>         at
> com.sun.xml.internal.ws.client.sei.SEIMethodHandler.createRequestMessage(S
> EIMethodHandler.java:204)
>         at
> com.sun.xml.internal.ws.client.sei.AsyncMethodHandler$SEIAsyncInvoker.do_ru
> n(AsyncMethodHandler.java:147)
>         at
> com.sun.xml.internal.ws.client.AsyncInvoker.run(AsyncInvoker.java:54)
>         ... 4 more
> 
> Final note: the the only alteration I made to support asynchronous web service
> on the service (servlet) side was the inclusion of 
> <async-supported>true</async-
> supported> in the deplyment descriptor (web.xml).
> 
> David
> 
> 
> 
> --
> View this message in context: http://cxf.547215.n5.nabble.com/Getting-java-
> lang-ClassCast-Exception-javax-xml-ws-Holder-cannot-be-cast-to-java-lang-
> String-tp5742667.html
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