CXF #PUT request "No message body writer has been found" exception - spring

Question

I am completely stuck! spends many hours on this with no progress...
I have a Spring 4 (4.2.3.RELEASE) app with CXF 3 (3.1.4) which I am trying to JUnit test. Everything is working great except for the PUT request. I am getting the following error:
Caused by: org.apache.cxf.interceptor.Fault: No message body writer has been found for class com.someproject.logic.api.data.User, ContentType: application/xml
at org.apache.cxf.jaxrs.client.WebClient$BodyWriter.doWriteBody(WebClient.java:1222)
at org.apache.cxf.jaxrs.client.AbstractClient$AbstractBodyWriter.handleMessage(AbstractClient.java:1091)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.jaxrs.client.AbstractClient.doRunInterceptorChain(AbstractClient.java:649)
at org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:1093)
... 49 more
Caused by: javax.ws.rs.ProcessingException: No message body writer has been found for class com.someproject.logic.api.data.User, ContentType: application/xml
at org.apache.cxf.jaxrs.client.AbstractClient.reportMessageHandlerProblem(AbstractClient.java:780)
at org.apache.cxf.jaxrs.client.AbstractClient.writeBody(AbstractClient.java:494)
at org.apache.cxf.jaxrs.client.WebClient$BodyWriter.doWriteBody(WebClient.java:1217)
... 53 more
I also tried with "application/json" and got the same result.
Here is the CXF configuration:
#Bean
#DependsOn("cxf")
public Server jaxRsServer() {
JAXRSServerFactoryBean sf = new JAXRSServerFactoryBean();
List<Object> providers = new ArrayList<Object>();
// get all the class annotated with #JaxrsService
List<Object> beans = configUtil.findBeans(JaxrsService.class);
if (beans.size() > 0) {
// add all the CXF service classes into the CXF stack
sf.setServiceBeans(beans);
sf.setAddress("http://localhost:8080/api");
sf.setBus(springBus);
sf.setStart(true);
// set JSON as the response serializer
JacksonJsonProvider provider = new JacksonJsonProvider();
providers.add( provider );
}
// add custom providers if any
sf.setProviders(providers);
return sf.create();
}
Endpoint:
#Path("/user")
#PUT
#Consumes({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON, })
#Produces( MediaType.APPLICATION_JSON )
public User updateUser( User user );
Endpoint impl:
#Override
public User updateUser( User user ) {
System.out.println( "updateUser: " + user );
return user;
}
Test:
#Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
webClient = WebClient.create( "http://localhost:8080/api" );
WebClient.getConfig( webClient ).getRequestContext().put( LocalConduit.DIRECT_DISPATCH, Boolean.TRUE );
webClient.accept( "application/json" );
}
#Test
public void testPut() {
String apiUrl = "/user";
webClient.path( apiUrl );
User user = createDummyAPIUser();
try {
System.out.println( "testUpdateUser: PUT request to " + apiUrl );
String response = webClient.type( MediaType.APPLICATION_JSON ).put( user, String.class );
System.out.println( "testUpdateUser: " + apiUrl + " response: " + response );
//updatedUser = (new ObjectMapper()).readValue( response, User.class );
} catch( Exception e ) {
e.printStackTrace();
fail();
return;
}
}
First how do I make sure that the fasterxml Jackson 2 provider is in fact serializing the message body? It do not see anything Jackson in the stacktrace but I do set it in the providers.
I have found this link to demonstrate a custom ContextProvider, is this the only way to get this working? Seem utterly redundant...
http://www.blackpepper.co.uk/custom-context-providers-for-cxf-with-the-context-annotation/
Any ideas?
Thank you!!

Answer 1

GEEEEEEZZZ...
feeling like a dork, forgot to add the same Jackson serializer ( provider ) to the client. Looking again through the stacktrace I noticed that the methods were only from the client, so obviously the client did not know how to consume the POJO I was throwing at it...
Updated test code:
#Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
final List<Object> providers = new ArrayList<Object>();
JacksonJaxbJsonProvider jacksonJsonProvider = new JacksonJaxbJsonProvider();
providers.add( jacksonJsonProvider );
webClient = WebClient.create( "http://localhost:8080/api", providers );
WebClient.getConfig( webClient ).getRequestContext().put( LocalConduit.DIRECT_DISPATCH, Boolean.TRUE );
webClient.accept( "application/json" );
}