System.Net.ConnectionReturnResult.AddExceptionRange C# (CSharp) Method

        internal static void AddExceptionRange(ref ConnectionReturnResult returnResult, HttpWebRequest [] requests, Exception exception, Exception firstRequestException)
        {

            //This may cause duplicate requests if we let it through in retail
            if (exception == null)
                throw new InternalException();

            if (returnResult == null) {
                returnResult = new ConnectionReturnResult(requests.Length);
            }
            // "abortedRequestExeption" is assigned to the "abortedRequest" or to the very first request if the latest is null
            // Everyone else will get "exception"
            for (int i = 0; i < requests.Length; ++i)
            {
#if DEBUG
                //This may cause duplicate requests if we let it through in retail but it's may be expensive to catch here
                for (int j = 0; j <  returnResult.m_Context.Count; ++j)
                    if ((object)returnResult.m_Context[j].Request == (object) requests[i])
                        throw new InternalException();
#endif

                if (i == 0)
                    returnResult.m_Context.Add(new RequestContext(requests[i], firstRequestException));
                else
                    returnResult.m_Context.Add(new RequestContext(requests[i], exception));
            }
        }