title: ERROR﹕ javax.net.ssl.SSLHandshakeException, failure in SSL library?
body: <p>Using retrofit library in my Android app for a long time.
  Now the app stopped working, with an error message:</p>
  
  <pre><code>ERROR﹕ javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xb9753f20: Failure in SSL library, usually a protocol error
  error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version (external/openssl/ssl/s23_clnt.c:741 0x97015926:0x00000000)
          at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:448);
  </code></pre>
  
  <p>I have information that the OpenSSL will update this week,
  but I do not understand what this has to do with my app (which just has REST API, Retrofit, Java, own server). Here is my <code>app.config</code></p>
  
  <pre><code>android {
      compileSdkVersion 20
      buildToolsVersion "20.0.0"
  
      defaultConfig {
          applicationId "com.xxx.xxx"
          minSdkVersion 16
          targetSdkVersion 20
          versionCode 34
          versionName "1.0"
      }
      sourceSets {
          main {
              res.srcDirs =
                      [
                              'src/main/res/layout/navdrawer',
                              'src/main/res/layout',
                              'src/main/res'
                      ]
          }
      }
  
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
  //    compile 'com.google.android.gms:play-services:+'
      compile "com.google.android.gms:play-services:3.1.+"
      compile 'com.android.support:appcompat-v7:20.0.0'
      compile 'com.android.support:support-v13:20.0.+'
      compile 'uk.co.chrisjenx:calligraphy:1.1.+'
      compile 'com.squareup.okhttp:okhttp-urlconnection:+'
      compile 'com.squareup.okhttp:okhttp:+'
  
      compile 'com.squareup.picasso:picasso:+'
  
      compile project(':facebook')
      compile 'com.squareup.retrofit:retrofit:+'
      //compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.1'
      compile 'com.google.code.gson:gson:2.2.4'
      compile 'com.viewpagerindicator:library:2.4.1@aar'
  
  
  }
  </code></pre>