code: void handshakeAlert(byte description) throws SSLProtocolException {
          String message = Alerts.alertDescription(description);
  
          if (debug != null && Debug.isOn("handshake")) {
              System.out.println("SSL - handshake alert: " + message);
          }
          throw new SSLProtocolException("handshake alert:  " + message);
      }
docs: /*
  Fault detected during handshake.