title: Android SSL Handshake Failed when connecting to a web service using HTTPS
body: <p>My Android app connects to a web service on my server. Everything worked fine yesterday, but today I got the error.</p>
  
  <p>I didn't make any changes to the web service, nor to the app. I suspect it's something wrong with my server, but don't know where to start.</p>
  
  <p>I tested it on both Android 5 and Android 6 devices.</p>
  
  <p>Here is the error:</p>
  
  <pre><code>HTTPClient: (TiHttpClient-3) [1136,1136] HTTP Error (javax.net.ssl.SSLHandshakeException): Handshake failed
  [ERROR] :  TiHTTPClient: javax.net.ssl.SSLHandshakeException: Handshake failed
  [ERROR] :  TiHTTPClient:    at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:396)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.http.SocketConnector.connectTls(SocketConnector.java:103)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.Connection.connect(Connection.java:143)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:185)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:341)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:437)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:388)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getHeaders(HttpURLConnectionImpl.java:150)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getHeaderField(HttpURLConnectionImpl.java:194)
  [ERROR] :  TiHTTPClient:    at java.net.URLConnection.getHeaderFieldInt(URLConnection.java:543)
  [ERROR] :  TiHTTPClient:    at java.net.URLConnection.getContentLength(URLConnection.java:315)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getContentLength(DelegatingHttpsURLConnection.java:146)
  [ERROR] :  TiHTTPClient:    at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getContentLength(HttpsURLConnectionImpl.java)
  [ERROR] :  TiHTTPClient:    at ti.modules.titanium.network.TiHTTPClient.handleResponse(TiHTTPClient.java:159)
  [ERROR] :  TiHTTPClient:    at ti.modules.titanium.network.TiHTTPClient.access$1200(TiHTTPClient.java:85)
  [ERROR] :  TiHTTPClient:    at ti.modules.titanium.network.TiHTTPClient$ClientRunnable.run(TiHTTPClient.java:1207)
  [ERROR] :  TiHTTPClient:    at java.lang.Thread.run(Thread.java:818)
  [ERROR] :  TiHTTPClient:    Suppressed: javax.net.ssl.SSLHandshakeException: Handshake failed
  [ERROR] :  TiHTTPClient:        ... 20 more
  [ERROR] :  TiHTTPClient:        Suppressed: javax.net.ssl.SSLHandshakeException: Handshake failed
  [ERROR] :  TiHTTPClient:            ... 20 more
  [ERROR] :  TiHTTPClient:        Caused by: javax.net.ssl.SSLProtocolException: SSL handshake terminated: ssl=0xaef13100: Failure in SSL library, usually a protocol error
  [ERROR] :  TiHTTPClient: error:100c5410:SSL routines:ssl3_read_bytes:SSLV3_ALERT_HANDSHAKE_FAILURE (external/boringssl/src/ssl/s3_pkt.c:972 0x9defc240:0x00000001)
  [ERROR] :  TiHTTPClient: error:100c009f:SSL routines:ssl3_get_server_hello:HANDSHAKE_FAILURE_ON_CLIENT_HELLO
  [ERROR] :  TiHTTPClient:            at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
  [ERROR] :  TiHTTPClient:            at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:324)
  [ERROR] :  TiHTTPClient:            ... 19 more
  [ERROR] :  TiHTTPClient:    Caused by: javax.net.ssl.SSLProtocolException: SSL handshake terminated: ssl=0xaef13100: Failure in SSL library, usually a protocol error
  [ERROR] :  TiHTTPClient: error:100c5410:SSL routines:ssl3_read_bytes:SSLV3_ALERT_HANDSHAKE_FAILURE (external/boringssl/src/ssl/s3_pkt.c:972 0x9defc240:0x00000001)
  [ERROR] :  TiHTTPClient: error:100c009f:SSL routines:ssl3_get_server_hello:HANDSHAKE_FAILURE_ON_CLIENT_HELLO (external/boringssl/src/ssl/s3_clnt.c:750 0xab1e350f:0x00000000)
  [ERROR] :  TiHTTPClient:        at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
  [ERROR] :  TiHTTPClient:        at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:324)
  [ERROR] :  TiHTTPClient:        ... 19 more
  [ERROR] :  TiHTTPClient: Caused by: javax.net.ssl.SSLProtocolException: SSL handshake terminated: ssl=0xaef13100: Failure in SSL library, usually a protocol error
  [ERROR] :  TiHTTPClient: error:100c5410:SSL routines:ssl3_read_bytes:SSLV3_ALERT_HANDSHAKE_FAILURE (external/boringssl/src/ssl/s3_pkt.c:972 0x9defc240:0x00000001)
  [ERROR] :  TiHTTPClient: error:100c009f:SSL routines:ssl3_get_server_hello:HANDSHAKE_FAILURE_ON_CLIENT_HELLO (external/boringssl/src/ssl/s3_clnt.c:750 0xab1e350f:0x00000000)
  [ERROR] :  TiHTTPClient:    at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
  [ERROR] :  TiHTTPClient:    at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:324)
  [ERROR] :  TiHTTPClient:    ... 19 more
  </code></pre>
  
  <p>Any pointer is much appreciated. Thanks.</p>