Java.Net.SocketException: Socket closed

Vuyiswa Maseko 351 Reputation points
2021-10-01T19:19:09.983+00:00

Good Evening Everyone

im calling a web api function like this

 public async Task<List<USERS>> Get_All_Customers( )
        {

            List<USERS> results = null;
            try
            {
                USERS m_model = new USERS
                {
                    USER_ID = 1,
                    CURRENT_DATETIME = '2021/07/01'
                };
                var httpClient = new HttpClient();

                httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));


                var Json = JsonConvert.SerializeObject(m_model, new JsonSerializerSettings
                {
                    ContractResolver = new DefaultContractResolver
                    {
                        IgnoreSerializableAttribute = false
                    }
                });


                HttpContent httpContent = new StringContent(Json, Encoding.UTF8, "application/json");
                httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json; charset=utf-8");

                var response = await Task.Run(() => httpClient.PostAsync(string.Format("https://www.myserver.com/api/MainCustomers_OnlineDates/Get_All_Customers"), httpContent));

                if (response.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    var content = await response.Content.ReadAsStringAsync();
                    results = JsonConvert.DeserializeObject<List<USERS>>(content);
                }
            }
            catch (Exception ex)
            {
                await Task.Run(() => Crashes.TrackError(ex));
            }

            return results;
        }

This code work well most of the time , but some of my users get this exception which is logged in AppCentre and i only get this error on OS: Android 10

Java.Net.SocketException: Socket closed
The Stacktrace
Java.Interop
JniEnvironment+InstanceMethods.CallIntMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue args)
Java.Interop
JniPeerMembers+JniInstanceMethods.InvokeVirtualInt32Method (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters)
Java.Net
HttpURLConnection.get_ResponseCode ()
Xamarin.Android.Net
AndroidClientHandler+<>c__DisplayClass46_0.<DoProcessRequest>b__2 ()
System.Threading.Tasks
Task1[TResult].InnerInvoke () System.Threading.Tasks Task.Execute () Xamarin.Android.Net AndroidClientHandler.DoProcessRequest (System.Net.Http.HttpRequestMessage request, Java.Net.URL javaUrl, Java.Net.HttpURLConnection httpConnection, System.Threading.CancellationToken cancellationToken, Xamarin.Android.Net.AndroidClientHandler+RequestRedirectionState redirectState) Xamarin.Android.Net AndroidClientHandler.SendAsync (System.Net.Http.HttpRequestMessage request, System.Threading.CancellationToken cancellationToken) System.Net.Http HttpClient.FinishSendAsyncBuffered (System.Threading.Tasks.Task1[TResult] sendTask, System.Net.Http.HttpRequestMessage request, System.Threading.CancellationTokenSource cts, System.Boolean disposeCts)

Datalayerapi.Get_All_Online_Dates (System.Int32 userid, System.DateTime )
java.net.SocketException: Socket closed
com.android.org.conscrypt.NativeCrypto.SSL_read(Native Method)
com.android.org.conscrypt.NativeSsl.read NativeSsl.java:411
com.android.org.conscrypt.ConscryptFileDescriptorSocket$SSLInputStream.read ConscryptFileDescriptorSocket.java:583
com.android.okhttp.okio.Okio$2.read Okio.java:145
com.android.okhttp.okio.AsyncTimeout$2.read AsyncTimeout.java:213
com.android.okhttp.okio.RealBufferedSource.indexOf RealBufferedSource.java:317
com.android.okhttp.okio.RealBufferedSource.indexOf RealBufferedSource.java:311
com.android.okhttp.okio.RealBufferedSource.readUtf8LineStrict RealBufferedSource.java:207
com.android.okhttp.internal.http.Http1xStream.readResponse Http1xStream.java:395
com.android.okhttp.internal.http.Http1xStream.readResponseHeaders Http1xStream.java:146
com.android.okhttp.internal.http.HttpEngine.readNetworkResponse HttpEngine.java:900
com.android.okhttp.internal.http.HttpEngine.readResponse HttpEngine.java:772
com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute HttpURLConnectionImpl.java:493
com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse HttpURLConnectionImpl.java:429
com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode HttpURLConnectionImpl.java:560
com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode DelegatingHttpsURLConnection.java:106
com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode HttpsURLConnectionImpl.java:30*

Thanks

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