RestEasy client with SSL/TLS receives SSLHandshakeException/handshake_failure

Issue

• RestEasy client is not sending the SNI (service Name Indication) extension to a SSL/TLS endpoint.

• A RestEasy client is failing to establish SSL/TLS communication with the following exception:

  Exception in thread "main" javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
          at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
          at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
          at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023)
          at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125)
          at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
          at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
          at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
          at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:535)
          at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:403)
          at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177)
          at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:304)
          at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611)
          at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446)
          at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
          at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
          at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
          at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)