retrofit: HTTP Status 304 - ProtocolException: Unexpected status line

I´ve implemented a retrofit sync call inside AsyncTask that gets called via SwipeRefreshLayout. The first time I make the swipe to refresh I get a 304 Not Modified http status but if I do it again just after the first call I get the body of the call inside the status line and throws a java.net.ProtocolException: Unexpected status line. I can only reproduce this if I do it quickly enough.

Is there something I´m missing? Maybe a misconfiguration somewhere? Maybe related to https://github.com/square/retrofit/issues/735 ?

This is my client configuration part

Gson gson = new GsonBuilder()
            .registerTypeAdapter(Me.class, new MeDeserializer())
            .registerTypeAdapter(Assistant.class, new AssistantDeserializer())
            .registerTypeAdapter(Meeting.class, new MeetingDeserializer())
            .registerTypeAdapter(Schedule.class, new ScheduleDeserializer())
            .registerTypeAdapter(Speaker.class, new SpeakerDeserializer())
            .registerTypeAdapter(Sponsor.class, new SponsorsDeserializer())
            .registerTypeAdapter(Entity.class, new EntityDeserializer())
            .create();

        RestAdapter restAdapter = new RestAdapter.Builder()
                .setLogLevel(RestAdapter.LogLevel.BASIC)
                .setEndpoint(ENDPOINT)
                .setConverter(new GsonConverter(gson))
                .setRequestInterceptor(new CustomRequestInterceptor())
                .build();
        mService = restAdapter.create(AppEventosService.class);

I´ve some workload to generate a Authorization header on the CustomRequestInterceptor.

This is the log thrown by the logcat.

04-13 13:39:52.310    8856-8970/com.irontec.welcome2015 D/Retrofit﹕ ---> HTTP GET http://test218.irontec.com/app-eventos/rest/contacts
04-13 13:39:52.478    8856-8970/com.irontec.welcome2015 D/Retrofit﹕ <--- HTTP 304 http://test218.irontec.com/app-eventos/rest/contacts (168ms)
04-13 13:39:54.497    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ ---> HTTP GET http://test218.irontec.com/app-eventos/rest/contacts
04-13 13:39:54.691    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ ---- ERROR http://test218.irontec.com/app-eventos/rest/contacts
04-13 13:39:54.697    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ java.net.ProtocolException: Unexpected status line: {"debug":{"module":"rest","controller":"contacts","action":"index"},"message":"Not Modified","total":33,"contacts":[{"id":573,"createdAt":"2015-04-13 10:43:40","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atOneHour","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":574,"createdAt":"2015-04-13 11:46:03","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atHalfHour","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":575,"createdAt":"2015-04-13 11:51:15","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atHalfHour","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":576,"createdAt":"2015-04-13 11:54:04","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atOneHour","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":577,"createdAt":"2015-04-13 11:55:00","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atOneHour","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":578,"createdAt":"2015-04-13 11:57:05","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":579,"createdAt":"2015-04-13 11:59:02","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":580,"createdAt":"2015-04-13 12:00:49","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atHalfHour","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","e
04-13 13:39:54.698    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ mail":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":581,"createdAt":"2015-04-13 12:01:27","status":"canceled","emailShare":0,"cellphoneShare":0,"responseDate":null,"moment":"","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":582,"createdAt":"2015-04-13 12:26:04","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":583,"createdAt":"2015-04-13 12:28:22","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atHalfHour","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":584,"createdAt":"2015-04-13 12:29:40","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":585,"createdAt":"2015-04-13 12:30:35","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":586,"createdAt":"2015-04-13 12:30:48","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":587,"createdAt":"2015-04-13 12:30:58","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":588,"createdAt":"2015-04-13 12:31:29","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow
04-13 13:39:54.698    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ ","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":589,"createdAt":"2015-04-13 12:34:08","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":590,"createdAt":"2015-04-13 12:39:01","status":"canceled","emailShare":0,"cellphoneShare":0,"responseDate":null,"moment":"","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":591,"createdAt":"2015-04-13 12:39:14","status":"accepted","emailShare":1,"cellphoneShare":0,"responseDate":null,"moment":"atRightNow","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":592,"createdAt":"2015-04-13 12:45:59","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":593,"createdAt":"2015-04-13 12:51:20","status":"accepted","emailShare":1,"cellphoneShare":0,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":594,"createdAt":"2015-04-13 12:52:45","status":"accepted","emailShare":1,"cellphoneShare":0,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":595,"createdAt":"2015-04-13 12:55:41","status":"accepted","emailShare":1,"cellphoneShare":0,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":596,"createdAt":"2015-04-13 13:01:09","status":"accepted","emailShare":1,"cellph
04-13 13:39:54.698    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ oneShare":0,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":597,"createdAt":"2015-04-13 13:01:42","status":"accepted","emailShare":1,"cellphoneShare":0,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":598,"createdAt":"2015-04-13 13:02:35","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":599,"createdAt":"2015-04-13 13:08:05","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":600,"createdAt":"2015-04-13 13:23:59","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":601,"createdAt":"2015-04-13 13:24:28","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":602,"createdAt":"2015-04-13 13:25:40","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":603,"createdAt":"2015-04-13 13:26:05","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/3
04-13 13:39:54.698    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ 53-turkey-sqaure.jpg"}},{"id":604,"createdAt":"2015-04-13 13:28:33","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":true,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}},{"id":605,"createdAt":"2015-04-13 13:30:21","status":"accepted","emailShare":1,"cellphoneShare":1,"responseDate":null,"moment":"atRightNow","sendedByMe":false,"assistants":{"id":353,"name":"Daniel","lastName":"Rendon Arias","email":"dani@irontec.com","company":"Irontec","cellPhone":"987456321","position":"LOL","picUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistants\/353-turkey-sqaure.jpg","picCircleUrl":"http:\/\/test218.irontec.com\/app-eventos\/image\/assistantsCircle\/353-turkey-sqaure.jpg"}}],"code":304}HTTP/1.1 200 OK
            at com.squareup.okhttp.internal.http.StatusLine.parse(StatusLine.java:54)
            at com.squareup.okhttp.internal.http.HttpConnection.readResponse(HttpConnection.java:190)
            at com.squareup.okhttp.internal.http.HttpTransport.readResponseHeaders(HttpTransport.java:80)
            at com.squareup.okhttp.internal.http.HttpEngine.readNetworkResponse(HttpEngine.java:830)
            at com.squareup.okhttp.internal.http.HttpEngine.access$200(HttpEngine.java:95)
            at com.squareup.okhttp.internal.http.HttpEngine$NetworkInterceptorChain.proceed(HttpEngine.java:823)
            at com.squareup.okhttp.internal.http.HttpEngine.readResponse(HttpEngine.java:684)
            at com.squareup.okhttp.Call.getResponse(Call.java:272)
            at com.squareup.okhttp.Call$ApplicationInterceptorChain.proceed(Call.java:228)
            at com.squareup.okhttp.Call.getResponseWithInterceptorChain(Call.java:199)
            at com.squareup.okhttp.Call.execute(Call.java:79)
            at retrofit.client.OkClient.execute(OkClient.java:53)
            at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:326)
            at retrofit.RestAdapter$RestHandler.invoke(RestAdapter.java:240)
            at java.lang.reflect.Proxy.invoke(Proxy.java:397)
            at $Proxy1.getContacts(Unknown Source)
            at com.irontec.welcome2015.fragments.MeetingsFragment$SyncMeetings.downloadDataFromAPI(MeetingsFragment.java:199)
            at com.irontec.welcome2015.fragments.MeetingsFragment$SyncMeetings.doInBackground(MeetingsFragment.java:186)
            at com.irontec.welcome2015.fragments.MeetingsFragment$SyncMeetings.doInBackground(MeetingsFragment.java:169)
            at android.os.AsyncTask$2.call(AsyncTask.java:292)
            at java.util.concurrent.FutureTask.run(FutureTask.java:237)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:818)
04-13 13:39:54.698    8856-8971/com.irontec.welcome2015 D/Retrofit﹕ ---- END ERROR
'''