Unable to find a MessageBodyReader of content-type application/json and type class java.lang.String

json rest jax-rs jackson resteasy
user1632803 picture user1632803 · Aug 29, 2012 · Viewed 43.5k times · Source

I am using RestEasy client with jackson providers and getting the above error

clientside code is: 

ClientRequest request = new ClientRequest(url);
request.accept(MediaType.APPLICATION_JSON);
ClientResponse<String> response = request.get(String.class);

if (response.getStatus() != 200) {
  throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
}

BufferedReader br =
  new BufferedReader(new InputStreamReader(new ByteArrayInputStream(response.getEntity().getBytes())));

response.getEntity() is throwing ClientResponseFailure exception with the error being

Unable to find a MessageBodyReader of content-type application/json and type class java.lang.String

My server side code is below:

@GET
@Path("/{itemId}")
@Produces(MediaType.APPLICATION_JSON)
public String item(@PathParam("itemId") String itemId) {
  //custom code

  return gson.toJSON(object);
}

Answer

Dog picture Dog · Dec 6, 2012

You could try to add the following dependency to your maven pom.

   <dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-jackson-provider</artifactId>
    <version>2.3.4.Final</version>
   </dependency>

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