Cuke4Nuke.Core.Processor.FailResponse C# (CSharp) Method

        private string FailResponse(Exception ex)
        {
            var sb = new StringBuilder();
            var sw = new StringWriter(sb);
            using (JsonWriter jsonWriter = new JsonTextWriter(sw))
            {
                jsonWriter.Formatting = Formatting.None;
                jsonWriter.WriteStartArray();
                jsonWriter.WriteValue("fail");
                jsonWriter.WriteStartObject();
                jsonWriter.WritePropertyName("exception");
                jsonWriter.WriteValue(ex.GetType().ToString());
                jsonWriter.WritePropertyName("message");
                jsonWriter.WriteValue(ex.Message);
                jsonWriter.WritePropertyName("backtrace");
                jsonWriter.WriteValue(ex.StackTrace);
                jsonWriter.WriteEndObject();
                jsonWriter.WriteEndArray();
            }
            return sw.ToString();
        }