code: protected void jSONSuccess(PMStrutsContext ctx, Object object) throws PMForwardException {
          final String toJson = new Gson().toJson(object);
          ctx.put(PM_VOID_TEXT, toJson);
          success(ctx, "converters/void.jsp", false);
      }
docs: Just a helper to return a serialized object with jSON.
  
  Specially useful dealing with encoding problems