JAX-RS (JSR 311) Sub Resource NullPointerException

Sun, 18 May 2008 22:45:21 -0700 

All,
I have implemented a set of basic classes in order to test the use of JAX-RS sub resources and found a NullPointerException (see end of message for stack trace). 
I am getting the CXF 2.1 version from the maven repository.

In my example, I have 2 methods:

hello
hello2

hello2 is a resource method marked with a @GET and a @PATH
hello is a sub resource method without a @GET but with a @PATH
Both methods return an Helloe object. A call to hello2 via a browser (http://localhost:9095/mzt-services/services/HelloRest/helloservice/hello2/toto) works fine and returns something like: 

<helloe>
<age>10</age>
<name>toto</name>
</helloe>
The call to hello via a browser (http://localhost:9095/mzt-services/services/HelloRest/helloservice/hello/toto/age) returns the following: (exception is pasted at the end) 

<ns1:XMLFault>
<ns1:faultstring>java.lang.NullPointerException</ns1:faultstring>
</ns1:XMLFault>

The code for the Root Resource (the REST service is):

@Path("helloservice")
public class HelloServiceImpl implements HelloService
{
   @Path("hello/{name}")
   public Helloe hello(@PathParam("name")
   String name)
   {
   Helloe helloe =  new HelloeImpl();
   // Hardcode values
   helloe.setName(name);
   helloe.setAge(10);
   return helloe;
   }

   @GET
   @Path("hello2/{name}")
   public Helloe hello2(@PathParam("name")
   String name)
   {
   Helloe helloe =  new HelloeImpl();
   // Hardcode values
   helloe.setName(name);
   helloe.setAge(10);
   return helloe;
   //return "<name>" + name + "</name>";
   }
}

The code for the HelloeImpl class is:

@XmlRootElement(name = "helloe")
public class HelloeImpl implements Helloe
{
   private String name;

   private int age;

   public HelloeImpl() {
   // TODO Auto-generated constructor stub
   }

   @GET
   @Path("/name")
   public String getName()
   {
   return name;
   }

   public void setName(String name)
   {
   this.name = name;
   }

   @GET
   @Path("/age")
   public int getAge()
   {
   return age;
   }

   public void setAge(int age)
   {
   this.age = age;
   }
}

Exception:
=======
May 18, 2008 10:23:23 PM org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor han 
dleMessage
INFO: Found operation: hello
May 18, 2008 10:23:23 PM org.apache.cxf.phase.PhaseInterceptorChain doIntercept 
INFO: Interceptor has thrown exception, unwinding now
java.lang.NullPointerException
at org.apache.cxf.jaxrs.JAXRSUtils.findTargetMethod(JAXRSUtils.java:237) 

       at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:139)
       at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:53)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInv 
okerInterceptor.java:56)
at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecu 
tor.java:37)
at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(Se 
rviceInvokerInterceptor.java:92)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseIntercept 
orChain.java:221)
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainIniti 
ationObserver.java:78)
at org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDes 
tination.java:92)
at org.apache.cxf.transport.servlet.ServletController.invokeDestination( 
ServletController.java:214)
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletCont 
roller.java:113)
at org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCX 
FServlet.java:170)
at org.apache.cxf.transport.servlet.AbstractCXFServlet.doGet(AbstractCXF 
Servlet.java:152)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:442 
)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:3 
57)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:2 
26)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:6 
15)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHand 
lerCollection.java:150)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection. 
java:123)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:1 
41)
       at org.mortbay.jetty.Server.handle(Server.java:272)
at org.mortbay.jetty.HttpConnection.handlerRequest(HttpConnection.java:3 
96)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpCo 
nnection.java:652)
       at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:488)
       at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:198)
       at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:311)
at org.mortbay.jetty.nio.HttpChannelEndPoint.run(HttpChannelEndPoint.jav 
a:270)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool 
.java:475

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