Major Description
I originally sent the following in email to cxf-dev:
—
Hi all,
I've been playing with the RESTful service support and I've come across some issues that really slowed me down 
I'm describing them here (and their workarounds) in case any users find it useful. I'm also wondering if some of these might be classified as bugs - please advise!
Here's what happened: based on the docu in the CXF wiki User Guide [1], I developed a RESTful service: everything was going fine until I implemented a PUT method for an update.
— in play/Contacts.java —
@Put
@HttpResource(location="/people/
")
void updatePerson(Person person);
—
: : :
Second problem: for some reason CXF insists that the payload document's root element is not prefixed with an XML namespace prefix. For example; the following valid XML results in a server-side NullPointerException.
<ns2:Person xmlns:ns2="http://play/">
<age>34</age>
<email>sdfdfdf</email>
<firstName>Adrian</firstName>
<id>42</id>
<lastName>Trenaman</lastName>
</ns2:Person>
To get it to work, I had to re-jig the XML so that Person is not prefixed (see below). I have a feeling that this problem is related to how we inject the id parameter into the Person XML, perhaps using an unqualified X-Path like "Person/id", but am not 100% sure.
<Person xmlns="http://play/">
<age>34</age>
<email>sdfdfdf</email>
<firstName>Adrian</firstName>
<id>42</id>
<lastName>Trenaman</lastName>
</Person>
—
The exception stack trace is:
29-Aug-2007 09:52:51 org.apache.cxf.binding.http.interceptor.DispatchInterceptor handleMessage
INFO: Invoking PUT on /people/123
29-Aug-2007 09:52:51 org.apache.cxf.binding.http.interceptor.URIParameterInInterceptor handleMessage
INFO: URIParameterInterceptor handle message on path [/people/123] with content-type [null]
29-Aug-2007 09:52:52 org.apache.cxf.phase.PhaseInterceptorChain doIntercept
INFO: Interceptor has thrown exception, unwinding now
java.lang.NullPointerException
at org.apache.cxf.binding.http.IriDecoderHelper.getElement(IriDecoderHelper.java:345)
at org.apache.cxf.binding.http.IriDecoderHelper.interopolateParams(IriDecoderHelper.java:295)
at org.apache.cxf.binding.http.interceptor.URIParameterInInterceptor.mergeParams(URIParameterInInterceptor.java:124)
at org.apache.cxf.binding.http.interceptor.URIParameterInInterceptor.handleMessage(URIParameterInInterceptor.java:105)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:207)
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:73)
at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.serviceRequest(JettyHTTPDestination.java:256)
at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestination.java:212)
at org.apache.cxf.transport.http_jetty.JettyHTTPHandler.handle(JettyHTTPHandler.java:54)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)