code: @Deprecated
    public void addSslListener(InetSocketAddress addr, String keystore,
        String storPass, String keyPass) throws IOException {
      if (webServer.isStarted()) {
        throw new IOException("Failed to add ssl listener");
      }
      SslSocketConnector sslListener = new SslSocketConnector();
      sslListener.setHost(addr.getAddress().getHostAddress());
      sslListener.setPort(addr.getPort());
      sslListener.setKeystore(keystore);
      sslListener.setPassword(storPass);
      sslListener.setKeyPassword(keyPass);
      webServer.addConnector(sslListener);
    }
docs: Configure an ssl listener on the server.
  @param addr address to listen on
  @param keystore location of the keystore
  @param storPass password for the keystore
  @param keyPass password for the key
  @deprecated Use {@link #addSslListener(InetSocketAddress, Configuration, boolean)}