A message body writer for Java type, class net.sf.json.JSONObject, and MIME media type, application/json, was not found

Question

I am using jersey client for making call to rest webservice. My webservice is consuming the json, so i need to put json in making call to my webservice provider. I am doing it in below way. ``` JSONObject object=new JSONObject(); object.put("name", employee.getName()); object.put("empId", employee.getEmpId()); object.put("organizationName", employee.getOrganizationName()); ClientResponse response = service.path("rest").path("vtn").path("addEmplyee") .type(MediaType.APPLICATION_JSON_TYPE).post(ClientResponse.class, object); ``` but i am getting the below exception: 09:52:01,625 ERROR [[mvc-dispatcher]] Servlet.service() for servlet mvc-dispatcher threw exception com.sun.jersey.api.client.ClientHandlerException: A message body writer for Java type, class net.sf.json.JSONObject, and MIME media type, application/json, was not found at com.sun.jersey.api.client.RequestWriter.writeRequestEntity(RequestWriter.java:288) at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke…

Accepted Answer

A better way is to tell `jersey-client` that it may use `jackson` for serialization: https://stackoverflow.com/a/2580315/516188

Pasting the setup:

```
ClientConfig cc = new DefaultClientConfig();
cc.getClasses().add(JacksonJsonProvider.class);
Client clientWithJacksonSerializer = Client.create(cc);
```

`JacksonJsonProvider` is in the `jackson-jaxrs-json-provider` package.

A message body writer for Java type, class net.sf.json.JSONObject, and MIME media type, application/json, was not found

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