POST request : List input through JSON not being recognized

[ZenEighth]

Hi,

Using CXF 2.4.2, developing a JAX-RS and JAX-WS combined webservice, which
use the same method.

Am trying to invoke a POST message and would like to pass a List, to
add to the DB. The method looks something like this:
@POST
@Path("/game/{id}/users/")
@WebMethod(operationName = "addUsers")
public Response addUsers(@PathParam("id") @WebParam(name = "id") String id,
List users);

All this method does is get this List, adds this to the DB.

However, I can't seem to make this POST request work while passing JSON
data, as shown below tried both versions below, but I can't get the
List populated, and it throws exception too.
1)
{"User":[{"deleted":"false","id":"1","login":"Test1","name":"Testing1"},{"deleted":"false","id":"2","login":"Test2","name":"Testing2"}]}

2)
{"users":[{"deleted":"false","id":"1","login":"Test1","name":"Testing1"},{"deleted":"false","id":"2","login":"Test2","name":"Testing2"}]}

The User class is pretty simple, just few properties as shown above. 

Let me know if you need any more details on this.

Any help on this is very much appreciated!

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Re: POST request : List input through JSON not being recognized

[ZenEighth]

Thank you Sergey for your reply...apologies for the delay on my part..and for
this lengthy post :)

1)
Using CXF 2.4.2, with JAX-RS of the same version, 2.4.2 (please see my
second point related to this below), I am getting an exception that suggests
'List is not recognized/supported'. My apologies as I lost the exact
exception, and I since moved my code to wrap the List<> inside another
class. This seems to work, although I would love to go back to using List<>
directly, if possible. (I can get the exception for you, if you would like
me to though.)

Its the JSON input that causes this issue, XML input seems to work fine. 

2)  However, I noticed something that I can't explain. If I set both
Apache-CXF and JAX-RS (cxf-rt-frontend-jaxrs) the same 2.4.2 version in my
projects' pom file, I *cannot* get JSON data/response back, ever(XML is
fine). Even on a simple GET, it always throws this exception shown
below(Jettison version that Maven pulls-in is, Jettison-1.3.jar) :

java.lang.NoSuchMethodError:
org.codehaus.jettison.mapped.Configuration.setSupressAtAttributes(Z)V
 at
org.apache.cxf.jaxrs.provider.JSONUtils.createConfiguration(JSONUtils.java:110)
 at
org.apache.cxf.jaxrs.provider.JSONProvider.createWriter(JSONProvider.java:420)
 at
org.apache.cxf.jaxrs.provider.JSONProvider.marshal(JSONProvider.java:405)
 at
org.apache.cxf.jaxrs.provider.JSONProvider.marshal(JSONProvider.java:443)
 at
org.apache.cxf.jaxrs.provider.JSONProvider.writeTo(JSONProvider.java:319)
 at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:257)
 at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:144)
 at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleMessage(JAXRSOutInterceptor.java:83)
 at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
 at
org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:77)
 at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
 at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
 at
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:206)
 at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:218)
 at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:161)
 at
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:114)
 at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:184)
 at
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:112)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) 


BUT, if I change my project pom file to push-down the version on
JAX-RS(cxf-rt-frontend-jaxrs) *alone* to 2.4.0, and keep the rest of CXF
libraries @ 2.4.2, I get beautiful JSON responses for the same GET's and
POST's etc. This is totally repeatable by me on my end. And the weird thing
is Jettison library is still Jettison-1.3.jar. Thought this might interest
you. 

Summary:
So, to recap, my LIST<> input error happens with either versions of
JAX-RS(2.4.2 and 2.4.0), and this is with JSON input only (XML and SOAP are
fine). And secondly, if I use JAX-RS 2.4.2 and CXF 2.4.2, I *cannot* get
back JSON responses for a simple GET either. However, if I bump-down JAX-RS
to 2.4.0, and keep the rest of CXF libraries at 2.4.2, I get JSON output
from the same code (no changes are needed), and this is repeatable.

BTW, I have this deployed on an ancient version of JBoss, jBoss 4.2.3GA, and
I can't upgrade that :)

Here are the cxf related info from my pom file:

 2.4.2

  .
  

   
org.apache.cxf
cxf-rt-frontend-jaxws
${cxf.version}


org.apache.cxf
cxf-rt-transports-http
${cxf.version}


  org.apache.cxf
  cxf-rt-frontend-jaxrs
  2.4.0
   
  .
  


Thank you once again Sergey..!



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