title: Android SignalR java-client: Not receiving all the SignalR messages on the HubConnection
body: <p>After trying several options, I'm not able to receive all the SignalR messages on my Android application. In my opinion it seems to be something related with the LongPollingTransport, but I can't find the solution... I receive all the longPolling messages, but sometimes it enters the handler and other times it tries to connect again to the server without entering the handler method.</p>
  
  <p>I've tried to follow the examples on <a href="https://github.com/SignalR/java-samples" rel="nofollow">here</a>.</p>
  
  <p>The code is very simple:</p>
  
  <pre><code>public void startNewSignalR(){
  
      Platform.loadPlatformComponent(new AndroidPlatformComponent());
  
      // Create a new console logger
      Logger logger = new Logger() {
          @Override
          public void log(String message, LogLevel level) {
              System.out.println(message);
          }
      };
  
      Uri signalRSource = Uri.parse(serverUrl);
      HubConnection connection = new HubConnection(signalRSource.toString(), "", true, logger);
      eventHub = connection.createHubProxy("eventHub");
  
      connection.error(new ErrorCallback() {
  
          @Override
          public void onError(Throwable error) {
              System.err.println("There was an error communicating with the server.");
              System.err.println("Error detail: " + error.toString());
  
              error.printStackTrace(System.err);
          }
      });
  
      // Subscribe to the connected event
      connection.connected(new Runnable() {
  
          @Override
          public void run() {
              System.out.println("CONNECTED");
          }
      });
  
      // Subscribe to the closed event
      connection.closed(new Runnable() {
  
          @Override
          public void run() {
              System.out.println("DISCONNECTED");
          }
      });
  
      eventHub.subscribe(new Object() {
          @SuppressWarnings("unused")
          public void receivePendingCountUpdate(String A) {
              System.out.println("------------------------&gt;&gt;&gt;&gt;&gt; Count: " + A);
          }
      });
  
      // Start the connection
      connection.start(new LongPollingTransport(logger))
              .done(new Action&lt;Void&gt;() {
  
                  @Override
                  public void run(Void obj) throws Exception {
                      System.out.println("Done Connecting!");
                      eventHub.invoke("JoinGroup", "signalevents-" + userId + "-pendingcount");
                  }
              });
  }
  </code></pre>
  
  <p>And here you can also see the console output that I receive, where the first message doesn't enter the method and the second one that enters:</p>
  
  <pre><code>02-18 16:23:08.954    6877-9048/com.sensingcontrol.android I/System.out﹕ HubConnection - Starting transport for Reconnection
  02-18 16:23:10.307    6877-9031/com.sensingcontrol.android I/System.out﹕ longPolling - Trigger onData with data: {"C":"s-0,10BC5E0|1,264DB67|2,445369|3,106F98E|4,1EAF347","M":[{"H":"EventHub","M":"receivePendingCountUpdate","A":[208]}]}
  02-18 16:23:10.307    6877-9031/com.sensingcontrol.android I/System.out﹕ HubConnection - Received data:
  02-18 16:23:10.307    6877-9031/com.sensingcontrol.android I/System.out﹕ MessageId received: s-0,10BC5E0|1,264DB67|2,445369|3,106F98E|4,1EAF347
  02-18 16:23:10.307    6877-9031/com.sensingcontrol.android I/System.out﹕ Invoking OnReceived with: null
  02-18 16:23:10.307    6877-9031/com.sensingcontrol.android I/System.out﹕ HubConnection - Processing message
  02-18 16:23:10.313    6877-9048/com.sensingcontrol.android I/System.out﹕ longPolling - Start the communication with the server
  02-18 16:23:10.317    6877-9048/com.sensingcontrol.android I/System.out﹕ HubConnection - Getting connection data: [{"name":"eventhub"}]
  02-18 16:23:10.317    6877-9048/com.sensingcontrol.android I/System.out﹕ longPolling - Execute the request
  02-18 16:23:10.318    6877-9048/com.sensingcontrol.android I/System.out﹕ Create new thread for HTTP Connection
  02-18 16:23:10.337    6877-9061/com.sensingcontrol.android I/System.out﹕ Execute the HTTP Request
  02-18 16:23:10.337    6877-9061/com.sensingcontrol.android I/System.out﹕ URL: http://url/signalr/reconnect
  02-18 16:23:10.342    6877-9061/com.sensingcontrol.android I/System.out﹕ VERB: GET
  02-18 16:23:10.342    6877-9061/com.sensingcontrol.android I/System.out﹕ Header User-Agent: SignalR (lang=Java; os=android; version=2.0)
  02-18 16:23:10.342    6877-9061/com.sensingcontrol.android I/System.out﹕ CONTENT: null
  02-18 16:23:10.343    6877-9061/com.sensingcontrol.android I/System.out﹕ Request executed
  02-18 16:23:10.498    6877-9061/com.sensingcontrol.android I/System.out﹕ HubConnection - Entered startLock after transport was started
  02-18 16:23:10.498    6877-9061/com.sensingcontrol.android I/System.out﹕ HubConnection - Current state: Reconnecting
  02-18 16:23:10.498    6877-9061/com.sensingcontrol.android I/System.out﹕ HubConnection - Starting Heartbeat monitor
  02-18 16:23:10.498    6877-9061/com.sensingcontrol.android I/System.out﹕ HubConnection - Reconnected
  02-18 16:23:10.498    6877-9061/com.sensingcontrol.android I/System.out﹕ longPolling - Response received
  02-18 16:23:10.498    6877-9061/com.sensingcontrol.android I/System.out﹕ longPolling - Read response to the end
  02-18 16:23:10.918    6877-9032/com.sensingcontrol.android I/System.out﹕ longPolling - Trigger onData with data: {"C":"s-0,10BC5E1|1,264DB67|2,44536B|3,106F98F|4,1EAF347","M":[{"H":"EventHub","M":"receivePendingCountUpdate","A":[208]}]}
  02-18 16:23:10.918    6877-9032/com.sensingcontrol.android I/System.out﹕ HubConnection - Received data:
  02-18 16:23:10.938    6877-9030/com.sensingcontrol.android I/System.out﹕ MessageId received: s-0,10BC5E1|1,264DB67|2,44536B|3,106F98F|4,1EAF347
  02-18 16:23:10.938    6877-9030/com.sensingcontrol.android I/System.out﹕ Invoking OnReceived with: null
  02-18 16:23:10.938    6877-9030/com.sensingcontrol.android I/System.out﹕ HubConnection - Processing message
  02-18 16:23:10.940    6877-9047/com.sensingcontrol.android I/System.out﹕ longPolling - Start the communication with the server
  02-18 16:23:10.955    6877-9047/com.sensingcontrol.android I/System.out﹕ HubConnection - Getting connection data: [{"name":"eventhub"}]
  02-18 16:23:10.955    6877-9047/com.sensingcontrol.android I/System.out﹕ longPolling - Execute the request
  02-18 16:23:10.979    6877-9046/com.sensingcontrol.android I/System.out﹕ Create new thread for HTTP Connection
  02-18 16:23:10.989    6877-9074/com.sensingcontrol.android I/System.out﹕ Execute the HTTP Request
  02-18 16:23:10.989    6877-9074/com.sensingcontrol.android I/System.out﹕ URL: http://url/signalr/reconnect
  02-18 16:23:10.989    6877-9074/com.sensingcontrol.android I/System.out﹕ VERB: GET
  02-18 16:23:10.997    6877-9073/com.sensingcontrol.android I/System.out﹕ Header User-Agent: SignalR (lang=Java; os=android; version=2.0)
  02-18 16:23:10.997    6877-9073/com.sensingcontrol.android I/System.out﹕ CONTENT: null
  02-18 16:23:10.998    6877-9073/com.sensingcontrol.android I/System.out﹕ Request executed
  02-18 16:23:11.217    6877-9074/com.sensingcontrol.android I/System.out﹕ HubConnection - Entered startLock after transport was started
  02-18 16:23:11.217    6877-9074/com.sensingcontrol.android I/System.out﹕ HubConnection - Current state: Reconnecting
  02-18 16:23:11.218    6877-9074/com.sensingcontrol.android I/System.out﹕ HubConnection - Starting Heartbeat monitor
  02-18 16:23:11.219    6877-9074/com.sensingcontrol.android I/System.out﹕ HubConnection - Reconnected
  02-18 16:23:11.239    6877-9073/com.sensingcontrol.android I/System.out﹕ longPolling - Response received
  02-18 16:23:11.239    6877-9073/com.sensingcontrol.android I/System.out﹕ longPolling - Read response to the end
  02-18 16:23:12.721    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Timeout
  02-18 16:23:12.721    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Stopping Heartbeat monitor
  02-18 16:23:12.722    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Restarting the transport
  02-18 16:23:12.722    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Entered startLock in startTransport
  02-18 16:23:12.722    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Starting the transport
  02-18 16:23:12.722    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Stopping heartbeat monitor
  02-18 16:23:12.722    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Clearing invocation callbacks: Reconnecting
  02-18 16:23:12.723    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Starting transport for Reconnection
  02-18 16:23:14.073    6877-9061/com.sensingcontrol.android I/System.out﹕ longPolling - Trigger onData with data: {"C":"s-0,10BC5E7|1,264DB6C|2,445378|3,106F995|4,1EAF34C","M":[{"H":"EventHub","M":"receivePendingCountUpdate","A":[209]}]}
  02-18 16:23:14.073    6877-9061/com.sensingcontrol.android I/System.out﹕ HubConnection - Received data:
  02-18 16:23:14.074    6877-9061/com.sensingcontrol.android I/System.out﹕ MessageId received: s-0,10BC5E7|1,264DB6C|2,445378|3,106F995|4,1EAF34C
  02-18 16:23:14.074    6877-9061/com.sensingcontrol.android I/System.out﹕ Invoking OnReceived with: null
  02-18 16:23:14.123    6877-9073/com.sensingcontrol.android I/System.out﹕ HubConnection - Processing message
  02-18 16:23:14.123    6877-9067/com.sensingcontrol.android I/System.out﹕ longPolling - Start the communication with the server
  02-18 16:23:14.124    6877-9067/com.sensingcontrol.android I/System.out﹕ HubConnection - Getting connection data: [{"name":"eventhub"}]
  02-18 16:23:14.124    6877-9067/com.sensingcontrol.android I/System.out﹕ longPolling - Execute the request
  02-18 16:23:14.124    6877-9067/com.sensingcontrol.android I/System.out﹕ Create new thread for HTTP Connection
  02-18 16:23:14.141    6877-9078/com.sensingcontrol.android I/System.out﹕ Execute the HTTP Request
  02-18 16:23:14.141    6877-9078/com.sensingcontrol.android I/System.out﹕ URL: http://url/signalr/reconnect
  02-18 16:23:14.141    6877-9078/com.sensingcontrol.android I/System.out﹕ VERB: GET
  02-18 16:23:14.149    6877-9077/com.sensingcontrol.android I/System.out﹕ Header User-Agent: SignalR (lang=Java; os=android; version=2.0)
  02-18 16:23:14.149    6877-9077/com.sensingcontrol.android I/System.out﹕ CONTENT: null
  02-18 16:23:14.149    6877-9077/com.sensingcontrol.android I/System.out﹕ Request executed
  02-18 16:23:14.267    6877-9079/com.sensingcontrol.android I/System.out﹕ HubConnection - Entered startLock after transport was started
  02-18 16:23:14.267    6877-9079/com.sensingcontrol.android I/System.out﹕ HubConnection - Current state: Reconnecting
  02-18 16:23:14.267    6877-9079/com.sensingcontrol.android I/System.out﹕ HubConnection - Starting Heartbeat monitor
  02-18 16:23:14.268    6877-9079/com.sensingcontrol.android I/System.out﹕ HubConnection - Reconnected
  02-18 16:23:14.271    6877-9077/com.sensingcontrol.android I/System.out﹕ longPolling - Response received
  02-18 16:23:14.271    6877-9077/com.sensingcontrol.android I/System.out﹕ longPolling - Read response to the end
  02-18 16:23:16.117    6877-9077/com.sensingcontrol.android I/System.out﹕ longPolling - Trigger onData with data: {"C":"s-0,10BC5F2|1,264DB6E|2,44537C|3,106F997|4,1EAF34E","M":[{"H":"EventHub","M":"receivePendingCountUpdate","A":[209]}]}
  02-18 16:23:16.117    6877-9077/com.sensingcontrol.android I/System.out﹕ HubConnection - Received data:
  02-18 16:23:16.118    6877-9077/com.sensingcontrol.android I/System.out﹕ MessageId received: s-0,10BC5F2|1,264DB6E|2,44537C|3,106F997|4,1EAF34E
  02-18 16:23:16.136    6877-9077/com.sensingcontrol.android I/System.out﹕ Invoking OnReceived with: null
  02-18 16:23:16.137    6877-9077/com.sensingcontrol.android I/System.out﹕ HubConnection - Processing message
  02-18 16:23:16.137    6877-9077/com.sensingcontrol.android I/System.out﹕ HubConnection - Getting HubInvocation from message
  02-18 16:23:16.138    6877-9077/com.sensingcontrol.android I/System.out﹕ HubConnection - Message for: eventhub
  02-18 16:23:16.138    6877-9077/com.sensingcontrol.android I/System.out﹕ HubConnection - Invoking event: receivependingcountupdate with arguments [209]
  02-18 16:23:16.138    6877-9077/com.sensingcontrol.android I/System.out﹕ HubProxy eventHub - Handling dynamic subscription: receivePendingCountUpdate
  02-18 16:23:16.139    6877-9077/com.sensingcontrol.android I/System.out﹕ HubProxy eventHub - Invoking method for dynamic subscription: receivePendingCountUpdate
  02-18 16:23:16.173    6877-9079/com.sensingcontrol.android I/System.out﹕ ------------------------&gt;&gt;&gt;&gt;&gt; Count: 209
  02-18 16:23:16.173    6877-9079/com.sensingcontrol.android I/System.out﹕ longPolling - Continue polling
  </code></pre>