Hi,
What is the stack trace you see? Do you have a working reproducible test by a chance? I am not able to locate any occurrence of "Headers have already been sent" message in Jersey 2.0 code.
Marek
On Jul 20, 2013, at 9:40 AM, rajeev jha <rjha94_at_gmail.com> wrote:
> Hi
>
> I have posted this on SO as well (http://stackoverflow.com/questions/17747681/jersey-2-0-jaxrs-ri-return-json-string-on-exception)
>
>
> I am creating a REST service using jersey 2.0. I am extending WebApplicationException
>
> 1)
> **Method raising a particular exception**
>
> if(json.equals("") || json.equals(" ")) {
> throw new ArgumentException("bad post data");
> }
>
> 2)
> public class ArgumentException extends RestException {
> .....
>
> public ArgumentException(String message) {
> super(Status.BAD_REQUEST,message);
> }
> }
>
> 3)
> public class RestException extends WebApplicationException {
> ...........
> public RestException(Status status, String message) {
>
> super(Response.status(status)
> .entity(message)
> .type("text/plain")
> .build());
> /*
> super(Response.status(status)
> .entity(new ErrorBean(status.getStatusCode(),message))
> .type(MediaType.APPLICATION_JSON)
> .build()); */
>
> }
>
> 4)
>
> ErrorBean is a POJO
>
>
>
> The method that returns error as plain string inside RestException works (right http code 400 and message). However when I try to pass the ErrorBean POJO and use MediaType.APPLICATION_JSON in response I get an error saying "Headers have already been sent" with http error code 500 (so some internal problem with plumbing) and empty response.
>
>
> I have also looked at this question http://stackoverflow.com/questions/2871935/returning-json-or-xml-for-exceptions-in-jersey
>
> How can I return the exception with code and message as a JSON like
>
> {"code" : 400, "message" : .... }
>
>
> Thanks
>
> /rajeev
>
>