Attempt to return a JSON hash.

   @HEAD
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
    public Response HEAD(@PathParam("token") String token,
            @DefaultValue("0") @FormParam("id") Number id)
            throws JsonGenerationException, JsonMappingException, IOException {
        EditSession session = AppState.INSTANCE.getEditSession(token);
        Number change_id = session.getChangeId();
        boolean has_changed = change_id != id;

        logger.debug("--EditToken (HEAD)");
        logger.debug("Session: " + token);
        logger.debug("Has Changed: " + has_changed);

        if (has_changed) {
            Map<String, String> response = new LinkedHashMap<String, String>();
            response.put("id",   change_id.toString());
            response.put("text", session.getText());

            return Response.ok(response, MediaType.APPLICATION_JSON).build();
        } else {
            return Response.notModified().build();
        }
    }

I'm trying to return this as the data of the ok() response: {"id": 2, "text": "the long text string...."}