I'm developing an app for my company, that needs to post some data on an **https** url.

I'm using retro fit, but I'm getting the following error `SSLHandshakeException: Connection closed by peer`

this is the code I'm using

**Service Generator**

```
public class ServiceGenerator {

    public static final String API_BASE_URL = "https://website.com/api/";

    private static OkHttpClient.Builder httpClient = new OkHttpClient.Builder();

    private static Retrofit.Builder builder =
            new Retrofit.Builder()
                    .baseUrl(API_BASE_URL)
                    .addConverterFactory(GsonConverterFactory.create());

    public static <S> S createService(Class<S> serviceClass) {
        Retrofit retrofit = builder.client(httpClient.build()).build();
        return retrofit.create(serviceClass);
    }
}

```

**Service**

```
public interface ITrackTraceService {

    @Headers("Content-Type: application/json")
    @POST("beepbeep/postdata")
    Call<String> PostLocation(@Body DataInput input);

}

```

**Call itself**

```
Location location = getLocation();

        TrackTraceService.ITrackTraceService srv = ServiceGenerator.createService(TrackTraceService.ITrackTraceService.class);

        DataInput i = new DataInput();
        i.Eta = new Date();
        i.Reference = "123456789";
        i.Status = "Tracking";
        i.Device = new Device();
        i.Reading = new Reading();
        i.Reading.Time = new Date();
        i.Reading.Location = new DeviceLocation();
        i.Reading.Location.Accuracy = location.getAccuracy();
        i.Reading.Location.Altitude = (float) location.getAltitude();
        i.Reading.Location.Latitude = (float) location.getLatitude();
        i.Reading.Location.Longitude = (float) location.getLongitude();
        i.Reading.Location.Speed = (float) location.getSpeed();
        i.Reading.Location.Time = new Date(location.getTime());
        Call<String> call = srv.PostLocation(i);

        call.enqueue(new Callback<String>() {
            @Override
            public void onResponse(Call<String> call, Response<String> response) {

                if (response.isSuccessful()) {
                    Log.d("Service", "onResponse");
                } else {
                    // error response, no access to resource?
                }
            }

            @Override
            public void onFailure(Call<String> call, Throwable throwable) {
                StringWriter sw = new StringWriter();
                PrintWriter pw = new PrintWriter(sw);
                throwable.printStackTrace(pw);
                Log.d("Service", call.request().toString());
                Log.e("Service", "onFailure", throwable);
                Log.d("Error", throwable.getMessage());
            }
        });
    }

```

**versions**

```
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile files('libs/converter-gson-2.0.2.jar')
compile files('libs/okhttp-3.3.1.jar')
compile files('libs/gson-2.6.2.jar')
compile files('libs/okio-1.8.0.jar')
compile files('libs/retrofit-2.0.2.jar')
compile files('libs/logging-interceptor-3.3.1.jar')
building for android API version 23

```

**stacktrace**

```
javax.net.ssl.SSLHandshakeException: Connection closed by peer
    at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
    at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:318)
    at okhttp3.internal.io.RealConnection.connectTls(RealConnection.java:239)
    at okhttp3.internal.io.RealConnection.establishProtocol(RealConnection.java:196)
    at okhttp3.internal.io.RealConnection.buildConnection(RealConnection.java:171)
    at okhttp3.internal.io.RealConnection.connect(RealConnection.java:111)
    at okhttp3.internal.http.StreamAllocation.findConnection(StreamAllocation.java:187)
    at okhttp3.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:123)
    at okhttp3.internal.http.StreamAllocation.newStream(StreamAllocation.java:93)
    at okhttp3.internal.http.HttpEngine.connect(HttpEngine.java:296)
    at okhttp3.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
    at okhttp3.RealCall.getResponse(RealCall.java:243)
    at okhttp3.RealCall$ApplicationInterceptorChain.proceed(RealCall.java:201)
    at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:163)
    at okhttp3.RealCall.access$100(RealCall.java:30)
    at okhttp3.RealCall$AsyncCall.execute(RealCall.java:127)
    at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
    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)
    Suppressed: javax.net.ssl.SSLHandshakeException: Connection closed by peer

```